WO2008039065A1 - Device, system and method for controlling a heating system - Google Patents
Device, system and method for controlling a heating system Download PDFInfo
- Publication number
- WO2008039065A1 WO2008039065A1 PCT/NL2007/000247 NL2007000247W WO2008039065A1 WO 2008039065 A1 WO2008039065 A1 WO 2008039065A1 NL 2007000247 W NL2007000247 W NL 2007000247W WO 2008039065 A1 WO2008039065 A1 WO 2008039065A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- power
- heat meter
- fluid flow
- heating
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims description 18
- 239000012530 fluid Substances 0.000 claims abstract description 89
- 239000003570 air Substances 0.000 claims description 16
- 230000033228 biological regulation Effects 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 4
- 239000012080 ambient air Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 42
- 239000008399 tap water Substances 0.000 description 9
- 235000020679 tap water Nutrition 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1048—Counting of energy consumption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
- F24D19/1081—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water counting of energy consumption
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- the present invention relates to a device and a method for controlling a heating system for heating one or more rooms in a building, wherein the heating system comprises a feed conduit for feeding warm fluid, a 5 return conduit for discharging cooled fluid, one or more heating elements, such as radiators and/or floor heating conduits, to be disposed in the rooms and connected to the feed and return conduits, and a fluid flow adjusting unit for adjusting the flow rate of the warm fluid
- the invention also relates to such a heating system.
- the thermostat measures the air temperature in the room and sends a signal to a control unit of the heating apparatus, which control unit then actuates the heating apparatus.
- control unit actuates the heating apparatus.
- the heating apparatus sends more or less heat into the feed conduit .
- Such an actuation of the heating apparatus takes place on the basis of the temperature of the warm water feed, and optionally on the basis of the temperature of
- the temperature of the warm water feed and of the water discharge is measured using temperature sensors provided in the respective conduits.
- a drawback of the known feed temperature-dependent control of the heating apparatus is that the method of
- heating the room leaves something to be desired.
- an 'overshoot' will for instance occur, meaning that following actuation of the heating apparatus a higher temperature is reached at a given moment than has been set (the overshoot) , so that the heating apparatus is down-regulated or switched off.
- the room temperature Once again falls too low, which means that the heating apparatus is adjusted upward or switched on again.
- Constantly switching the heating apparatus on and off usually causes an unstable room temperature. This all means that the desired room temperature set via the room thermostat is not realized in energetically optimum manner, and this results in an unnecessary loss of heat.
- a further drawback is that the comfort of those present in the room is limited, since at one moment they will be too cold and the next moment too warm as a result of the fluctuations in the room temperature.
- a device of the above stated type comprising:
- control unit which can be connected to the fluid flow adjusting unit and which is adapted to control the power of the fluid passing through the fluid flow adjusting unit; wherein the control unit is connected to the heat meter and is adapted to control the fluid flow adjusting unit subject to the power determined by the heat meter. Because use is made of the power of the fluid flowing through the feed conduit and determined by the heat meter, reaching of the desired temperature in the different rooms can be brought about in improved manner by actuating the fluid flow adjusting unit. Surprisingly, the power produced by the heating system is a better measure of the heating process occurring in the relevant room than the temperature of the feed and the discharge.
- the fluid When the heating system is for instance connected to district heating, the fluid is supplied - at a temperature which cannot be influenced by the user but which sometimes changes - via the feed conduit.
- the fluid flow adjusting unit which comprises for instance a control valve or the like, the correct amount of heat can be supplied to the heating elements so as to reach the desired room temperature.
- a heat meter of the invoicing type is already present in such a heating system.
- the heat meter is therefore preferably a heat meter of the invoicing type which is adapted to determine the power of the fluid sent through the conduit and to generate an indication of the heat supplied over a determined period.
- Such heat meters are used to determine the heat consumed by a user in a determined period and to debit this to the energy supplier. These heat meters are generally quite accurate, so that the amount of heat consumed can be determined with a small margin of error.
- an additional heat meter for driving the heating system can be omitted, this bringing about a considerable simplification, and an associated cost- saving, of the control device.
- the heat meter is provided with a display screen with which the heat supplied in said period (i.e. the heat supplied by the heat source minus the heat fed back to the heat source) can be indicated to enable invoicing of the heat provided by the energy supplier.
- the heat meter can be provided with an optionally wireless communication unit, so that the heat generated in said period, in addition to possible further quantities such as temperature of the water supply and water discharge, can be readily inspected by the user and/or the supplier using a receiver, for instance a computer provided with a receiver.
- the heat meter is adapted to determine the power in the feed conduit and the power in the return conduit . The delivered power can be determined more accurately by measuring both the power in the feed conduit and the power in the return conduit .
- the heat meter comprises:
- a computing unit for computing the power through the conduit on the basis of the determined temperature and the determined flow rate.
- the flow meter which determines the fluid flow rate consists in an advantageous embodiment of a velocity meter for measuring the velocity of the fluid flowing in the conduit.
- the flow rate of the fluid in the conduit can be derived directly on the basis of the velocity and the pre-known cross-section of the conduit.
- the computing unit can easily determine the power through the relevant conduit on the basis of the thus derived fluid flow rate and the temperature of the fluid.
- temperature sensors are arranged in both the feed conduit and the return conduit and it is possible to suffice with a single flow meter, either in the return conduit or in the feed conduit since, at least when there is no leakage, the flow rate on the feed side is the same as the flow rate on the discharge side. This means a further simplification of the control device.
- the heat meter and the control unit are integrated so that a highly compact and operationally reliable driving of the heating system can be effected.
- the heat meter and control unit can for instance be arranged in a shared housing, wherein the control unit is embodied in a particularly advantageous embodiment as a plug-in of the heat meter. This makes retrofitting of the control unit in an existing heat meter extremely simple.
- the device comprises a shared power supply for the heat meter and the control unit.
- the power supply can be provided by the domestic mains supply, by a battery or by a combination of the two.
- the control unit will however be powered using the domestic mains supply, so that the battery power supply normally present in the heat meter can be omitted. This makes the control device not only simpler and cheaper in construction, but also eliminates the necessity of replacing batteries after a period of time.
- the power can be determined with the accuracy of ⁇ 1.5% or better, preferably even ⁇ 0.5% or better.
- a number of advantageous methods of driving the heating system has become possible, as will become apparent below.
- the computation of the power is carried out in less than about four seconds and the total number of computations per hour amounts to more than about 650.
- the control device comprises an air temperature sensor for measuring the temperature of the ambient air in a room, wherein the air temperature sensor is in communication connection with the control unit for the purpose of controlling the fluid flow adjusting unit subject to both the measured air temperature and the measured power.
- the control device controls the flow rate of the warm fluid via the feed conduit using an open or closed, relatively slow control loop on the basis of the room temperature and using a second control loop on the basis of the determined power.
- the second control loop is relatively fast (in other words has a relatively small time constant) .
- the heating and cooling of a room progresses slowly.
- the heat content of a building, dwelling and objects therein is in other words large in relation to the power of the heating elements.
- the control unit comprises a receiver for wireless reception of commands from a displaceable remote control .
- the remote control is preferably embodied such that it can also be carried by a user. Using the remote control a user can for instance increase or decrease the temperature in one or more of the rooms in the building as desired, without the control device itself, or a fixed manual operating means for the control device coupled thereto, here having to be operated.
- the operating unit comprises not only a receiver but also a transmitter (for instance an integrated transmitter/ receiver) so that the operating unit can also send information to the remote control, such as for instance information concerning the status of the heat source, the temperature of the feed water, the temperature of the return water and so on.
- This information can for instance be displayed on a screen provided on the remote control .
- the above- mentioned air temperature sensor is provided in the remote control .
- a heating system for heating one or more rooms in a building comprising:
- At least one heating element such as a radiator and/or a floor heating conduit, to be disposed in a room;
- a fluid flow adjusting unit connected to the feed conduit for adjusting the flow rate of the fluid flowing into the feed conduit ;
- control unit which is connected to the fluid flow adjusting unit and which is adapted to control the power of the fluid passing through the fluid flow adjusting unit; wherein the control unit is also connected to the heat meter and the control unit is adapted to control the fluid flow adjusting unit subject to the power determined by the heat meter.
- the system comprises a circulation pump with adjustable pump flow rate connected to a conduit, wherein the pump flow rate can be controlled by the control unit subject to the power determined by the heat meter.
- the heating system comprises a floor heating system.
- the fluid flow adjusting unit comprises a control valve in addition to a circulation pump with adjustable pump flow rate, wherein the pump flow rate can be controlled by the control unit subject to the power determined by the heat meter.
- the circulation pump As the demand increases the circulation pump is switched on, wherein the flow rate is increased one step at a time with increasing pumping capacity. As the heat demand decreases, the capacity of the pump can be reduced. If the power (heat) which the system must supply is known, as is the case according to the invention, it is also known how fast (i.e. at what pumping capacity) the circulation pump must operate. In floor heating systems the circulation pump necessary for floor heating normally operates continuously, which is unnecessary and expensive.
- the power regulation according to the invention makes it possible to control the pump capacity as required and even to stop the pump if it is not required for circulation.
- the heating system is otherwise of a type in practice wherein the user has no influence on the temperature of the supplied fluid, as can be the case in an individual central heating installation.
- the heating system is for instance a district heating system, wherein the heat is supplied externally, i.e. feed water and return water conduits are realized from the public highway.
- the heating system can also be a floor heating system, wherein the heat is generated either in the dwelling itself by burning for instance natural gas in a central heating boiler, or is supplied via the above- mentioned district heating system.
- the heating system may be a group heating system, wherein the heat comes from outside the dwelling but from within the same building. This is for instance the case in an apartment complex in which different apartments have one shared heating boiler, a heat pump installation or mini-CHP installation, optionally in combination with a warm tap water supply.
- a method for heating one or more rooms in a building with a heating system comprising at least one feed conduit and at least one return conduit, a fluid flow adjusting unit for adjusting the flow rate of the fluid flowing into the feed conduit, and a heat meter for measuring power of the fluid flow in the feed conduit, the method comprising the steps of:
- the method comprises of the control unit reducing the feed temperature for a determined time interval, for instance the night period, and increasing the feed temperature at the end of said time interval subject to the length of the time interval and the energy level, determined from the measured power, of the fluid passing through the fluid flow adjusting unit.
- FIG. 1 shows schematically a floor heating system 1.
- an external heat source such as a district heating network or a central heating (CH) installation
- warm water is supplied in a feed flow (direction P 1 ) via a warm water feed pipe 2.
- the supplied warm water is guided via a control valve distributor 32 (in the shown embodiment a three-way valve) and a circulation pump 9 through a number of conduits 10, 11, 12 (direction P 2 ) arranged in the floor of the rooms in a building.
- the warm water runs through conduits 10-12 and relinquishes heat to the floor in which the conduits are arranged.
- a number of conduits 10-12 are herein placed in or on the concrete floor or the channels arranged for this purpose.
- a heat meter 14 is provided in the warm water supply- pipe 2 of heating system 1, or is at least connected thereto.
- Heat meter 14 comprises a (schematically shown) velocity meter 15 arranged in pipe 2.
- Velocity meter 15 can be of a type in which the liquid water sets a rotor into rotation, and this rotation is measured and thereby ⁇ provides a measure for the velocity of the liquid in feed conduit 2.
- the rotation speed is measured with a speed measuring element (not shown) connected to a microcontroller 19.
- the microcontroller computes the momentary flow rate (volume per unit time) of the liquid flowing in pipe 2.
- Heat meter 14 is further connected to a (schematically shown) temperature sensor 20 likewise arranged in feed pipe 2. Temperature sensor 20 generates a signal which is representative of the temperature of the liquid in feed pipe 2. Temperature sensor 20 is connected to microcontroller 19. On the basis of the temperature signal from temperature sensor 20 and the velocity signal from the speed measuring element the microcontroller 19 can therefore determine the momentary flow rate and the associated temperature of the liquid flowing in the pipe. On the basis of the flow rate and the temperature the microcontroller 19 computes the momentary power (energy per time unit) flowing into floor heating system 1 via warm water feed pipe 2. In another embodiment shown in broken lines in figure 1, heat meter 14 also comprises a second temperature sensor 22 which is placed in return pipe 3.
- second temperature sensor 22 is connected to microcontroller 19 and provides microcontroller 19 with a signal representative of the momentary temperature of the water in discharge pipe 3. If it is assumed that there is no loss of water in the conduit system, the flow rate of the water supplied in feed pipe 2 is the same under stationary conditions as the flow rate of the cooled water in return pipe 3, so that a separate flow rate meter in return pipe 3 can be omitted. The two power associated with supplied water and the power associated with cooled water are subtracted from each other in this embodiment in order to compute the supplied heat.
- Heat meter 14 is also provided with an LCD screen 23 on which can be read in known manner, among other information, the momentarily supplied power, the (accumulated) power supplied over a determined time interval, the feed water temperature, the discharge water temperature, the temperature difference, the water flow speed, the momentary flow rate in the water feed pipe and so forth.
- Heat meter 14 is suitable for invoicing purposes, which is understood to mean that for the supplier of the warm water it keeps track of how much heat is supplied to a user and the cost which can be billed for this supply.
- Such heat meters 14 are often, though not always, already present in district heating networks (systems with individual warm tap water as well as collective warm tap water (IWT/CWT) and in apartments with a shared CH apparatus) .
- Heat meter 14 is coupled to a connection terminal 29 of a control unit 26, for instance via a connecting line 25 or using a wireless connection (not shown) .
- Control unit 26 is assembled from a microcontroller 27, a number of memories 28, a connection terminal 29 for connection to heat meter 14, an input terminal 30 for connection to the thermostat 34 to be described below, and an output terminal 31 for connection to a control valve mechanism 32 provided in feed pipe 2.
- Control valve mechanism 32 is arranged in feed pipe 2 and can adjust the flow rate of the liquid flowing in feed pipe 2 in stepped manner or in continuously variable manner. Such control valves are generally known and a detailed description thereof is therefore omitted here.
- the control valve can also be arranged in return pipe 3 instead of in feed pipe 2.
- control valve does not hereby change, although this can be recommended because the average temperature of the return water is lower than that of the supplied water.
- a temperature sensor 8 placed in feed pipe 7 of the floor heating system is a temperature sensor 8 with which the temperature of water sent into the floor heating conduits can be determined.
- temperature sensor 8 is connected to microcontroller 19 or microcontroller 27, and provides to microcontroller 19, 27 a signal representative of the momentary temperature of the water in pipe 7.
- Microcontroller 27 of control unit 26 receives via input terminal 29 a signal from heat meter 14 which is representative of the power being delivered at that moment to the heating system. Microcontroller 27 likewise receives a signal from thermostat 34 via input terminal 30.
- Thermostat 34 is arranged in a random room, usually for instance the living room, of a dwelling, and comprises a temperature setting button 40 with which the user can set a desired temperature (T 1 ) .
- Thermostat 34 also comprises a temperature sensor 41 with which the temperature (Tj of the ambient air of thermostat 34 can be measured. This temperature is representative of the temperature in the relevant room.
- thermostat 34 When there is a difference between the temperature (Tj measured by- sensor 41 and the set temperature (T 1 ) , thermostat 34 generates a signal representative of this difference to input terminal 30 of control unit 26. On the basis of this signal and on the basis of the signal at input terminal 29 thereof, this signal being representative of the power determined at that moment, microcontroller 27 of control unit 26 computes how the set temperature (T 1 ) can be reached, as optimally as possible energetically and with maximum comfort for the users, by adjusting the flow rate through feed pipe 2. Once control unit 26 has determined which flow rate is at that moment desirable, it sends a signal via output terminal 31 to control valve mechanism 32 which places the control valve in the desired position. In the shown embodiments the circulation pump 9 is also actuated by control unit 26.
- valve mechanism 32 With a correct adjustment of the quantity of warm water supplied from feed conduit 2 and a correct mixing with the cooled water from the return conduit, the three-way valve of valve mechanism 32 substantially provides in this embodiment for the temperature of the water flowing through the floor heating conduits, while circulation pump 9 substantially provides for the flow rate of the water.
- the control unit controls only the control valve mechanism, as will be set forth below.
- control unit 26 therefore determines the desired flow rate through feed pipe 7 on the basis of the power of the water being supplied at that moment as well as the air temperature of the room to be heated or made cooler.
- An extremely- efficient driving of the heating system can be realized through the direct link between the current air temperature, the desired temperature and the momentary power.
- heating system 1 shown in figure 1 the heat meter 14, control unit 26 and control valve mechanism 32 are shown as separate components. It is however recommended to integrate the heat meter and the control unit to form an integrated unit 17, for instance by arranging thereof in a shared housing 18 as shown in figure 2. This can result in space and cost- savings .
- Figures 1 and 2 show that the power supply 35 for heat meter 14, control valve mechanism 32 and control unit 26 is shared and is provided from the domestic mains supply (H) . This means that batteries or accumulators present in many cases in a heat meter 14 can be dispensed with, this achieving a further simplification of the system.
- FIG 3 shows the situation in which the above- mentioned thermostat 34 is replaced by a portable thermostat 36.
- Portable thermostat 36 is also provided with a setting button 40 and temperature sensor 41.
- the connection between portable thermostat 36 and control unit 26 preferably takes place via a wireless connection (Infrared, WiFi and so on) so that thermostat 36 can be readily placed at the desired positions in the rooms.
- Portable thermostat 36 can be placed in one of a number of holders 37a-37d mounted on the wall in four different rooms.
- Thermostat 36 can also be carried by the user in order to modify settings.
- the best-known standard heating systems consist of one or more heating elements for each room for heating, such as for instance radiators, which are provided with a thermostat, in addition to one central thermostat usually placed in the living room.
- the central thermostat determines the temperature in the living room, while the other thermostats regulate the temperature in the other rooms.
- the drawback hereof is that the temperature in the other rooms will normally vary more than in the living room. This is in some cases not the optimum situation. If however use is made of portable thermostat 36, which is carried by the user or arranged in a holder 37 in one of the rooms, it is possible to ensure that the system remains optimized at all times for that room where the temperature must be most accurately controlled. This does not of course necessarily have to be the living room.
- control unit 26 can also be connected to circulation pump 9.
- Control unit 26 can hereby drive the circulation pump at distinct capacity levels, as stated above.
- Figure 4 shows the situation where heating takes place with a number of radiators 50, 50', 50''.
- the operation of the embodiment shown in figure 4 largely corresponds with that of the embodiment shown in figure 1, and a lengthy description thereof can therefore be dispensed with.
- This means that the control valve mechanism can be given a simpler form, for instance in the form of an adjustable two-way valve 32'.
- Radiators 50,50',5O 1 ' are provided with respective thermostatic valves 52, 52 ', 52" .
- FIG 5 an embodiment which has an operation corresponding for the greater part with that of the embodiment shown in figure 1. An extensive description thereof can therefore be dispensed with.
- the central thermostat 34,36 is omitted and the temperature in the rooms is adjusted by operating the thermostatic radiator valves 52, 52 ' , 52 ' ' in combination with a clock program in the control device for off-peak hours reduction.
- the control device further has a number of other advantages not mentioned above.
- a heating installation consisting of a district heating unit and radiators must for instance be set hydraulically.
- the radiators are provided for this purpose with setting valves 51,51',5I 1 '. These setting valves are given a certain adjustment during said setting.
- the setting valves must not be confused with the (thermostatic) radiator valves operated by the resident . Because the regulation according to the invention makes use of a heat meter with which, among other things, the flow is accurately measured, this measurement can be used in the hydraulic setting of the heating installation. Setting takes place as follows.
- the radiators are closed except for the radiator to be set.
- the radiator valve is fully opened and the setting valve is adjusted so that the flow through feed pipe 2 (which flow is accurately measured) acquires the desired value.
- the regulation takes place on the basis of input parameters such as hydraulic pressure difference and/or water temperatures and/or room temperature.
- the regulation according to the invention makes use of rapid and precise measurements of the quantities of feed and return temperature of the water, the flow rate, the power and, for the more refined variant of the regulation, also the prevailing and desired room temperature.
- the regulation according to the present invention is hereby better able than the currently available regulating means to respond adequately to changes in the setting of radiator valves. These changes are detected immediately and the regulation can also respond immediately.
- the power delivered is measured precisely with a heat meter, it is likewise possible to precisely regulate the power which is delivered.
- the power of a unit can also be limited very easily due to this accurate measurement.
- Another form of limiting is the limiting of the flow through the unit, with the object of limiting the flow through the radiators as a comfort-enhancing measure (less noise) .
- the maximum flow speed through the radiators can be determined and adjusted quite precisely.
- Another advantage of the regulation according to the invention is that the so-called off-peak hours reduction (which is frequently applied to a relatively rapid room heating system with radiators) can likewise be applied to floor heating systems. These latter systems are considerably slower than systems with radiators, whereby the floor heating is usually left on at night.
- the regulation according to the invention is better than the control systems applied heretofore and in many cases brings off-peak hours reduction within reach in the case of floor heating.
- the supplied energy is determined by integration in time. This is used, depending on the number of hours that there is no heating and depending on the difference between desired and actual room temperature, to employ a higher feed temperature than is normally permitted in respect of the safety margins which must be observed (the floor may for instance not become too hot, etc.) .
- the higher temperature is maintained until there is the danger of exceeding an energy level to be more definitely determined. This increases the possibilities of off-peak hours reduction in floor heating which, despite the temporarily higher feed temperature, can be energy-saving .
- warm tap water supply in most cases forms an integral part of the heating system according to the invention.
- warm tap water supply There are basically two types of warm tap water supply.
- One is Individual Warm Tap water (IWT) wherein cold tap water is heated using for instance a plate exchanger.
- the other is Central Warm Tap water (CWT) wherein the consumed warm tap water is for instance measured by a warm water meter.
- IWT Individual Warm Tap water
- CWT Central Warm Tap water
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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NL1032598 | 2006-09-29 | ||
NL1032598A NL1032598C2 (nl) | 2006-09-29 | 2006-09-29 | Inrichting, systeem en werkwijze voor het besturen van een verwarmingssysteem. |
Publications (1)
Publication Number | Publication Date |
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WO2008039065A1 true WO2008039065A1 (en) | 2008-04-03 |
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ID=38860120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/NL2007/000247 WO2008039065A1 (en) | 2006-09-29 | 2007-10-01 | Device, system and method for controlling a heating system |
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NL (1) | NL1032598C2 (nl) |
WO (1) | WO2008039065A1 (nl) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2307449A1 (es) * | 2008-04-14 | 2008-11-16 | Proyectos Tecnologicos De Navarra, S.A.L | Sistema de ahorro de calefaccion en edificios con calefaccion central. |
WO2009156010A1 (en) | 2008-06-26 | 2009-12-30 | Belparts | Flow control system |
WO2011029971A2 (es) * | 2009-09-14 | 2011-03-17 | Xial Domotecnologia, S.L. | Unidad hidráulica distribuidora para agua sanitaria y de calefacción en viviendas comunitarias |
WO2012037906A1 (de) * | 2010-09-25 | 2012-03-29 | Adunos Gmbh | System und verfahren zur aufnahme von daten über energiemengen und deren auswertung |
ITMI20101880A1 (it) * | 2010-10-14 | 2012-04-15 | Fimcim Spa | Impianto di condizionamento |
ES2383864A1 (es) * | 2008-05-19 | 2012-06-27 | Acome Societe Cooperative De Production, Societe Anonyme, A Capital Variable | Proceso y sistema de control de un circuito hidráulico de varios intercambiadores de calor. |
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WO2010046498A3 (en) * | 2008-10-24 | 2012-12-27 | The Technology Partnership Plc | An apparatus for analysing an interior energy system |
CH705804A1 (de) * | 2011-11-28 | 2013-05-31 | Belimo Holding Ag | Verfahren zur Regelung der Raumtemperatur in einem Raum oder einer Gruppe von mehreren Räumen sowie eine Vorrichtung zur Durchführung des Verfahrens. |
EP2226574A3 (de) * | 2009-03-06 | 2013-11-13 | LichtBlick ZuhauseKraftwerk GmbH | Modulares Blockheizkraftwerk |
US20150122475A1 (en) * | 2013-11-07 | 2015-05-07 | Grundfos Holding A/S | Regulating method for a heating and/or cooling system with at least one load circuit |
US9157643B2 (en) | 2010-10-14 | 2015-10-13 | Fimcim S.P.A. | Conditioning plant |
US9933167B2 (en) | 2014-03-18 | 2018-04-03 | Imi Hydronic Engineering, Inc. | Retrofit smart components for use in a fluid transfer system |
FR3069308A1 (fr) * | 2017-07-20 | 2019-01-25 | Abdelilah Koubi | Dispositif pour regulation et/ou comptage d’energie d’un plancher chauffant hydraulique et / ou un sol rafraichissant |
EP3312519A4 (en) * | 2015-06-22 | 2019-02-13 | Kyungdong Navien Co., Ltd. | HEATING AND HOT WATER SUPPLY DEVICE APPLIED TO CENTRAL AND URBAN HEATING AND METHOD OF CONTROLLING THE SAME |
RU2682976C2 (ru) * | 2014-06-24 | 2019-03-25 | Грундфос Холдинг А/С | Способ ограничения питающего потока в системе теплопередачи |
EP3492822A1 (en) * | 2017-11-30 | 2019-06-05 | Minibems Limited | Control method and device for a heating system or cooling system |
GR1010107B (el) * | 2020-12-31 | 2021-10-26 | Βασιλειος Θεοδωρου Ιορδανιδης | Θερμοστατης χωρου με λογισμικο (plc) που καθοριζει τη θερμοκρασια χωρου με διαβαθμισεις σε τριωδη βανα ή απευθειας καθορισμο θερμοκρασιας λεβητα |
IT202100025670A1 (it) * | 2021-10-07 | 2023-04-07 | Accademia Europea Bolzano Eurac Res | Sistema di regolazione per un circuito termoidraulico e metodo di controllo |
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ES2383864A1 (es) * | 2008-05-19 | 2012-06-27 | Acome Societe Cooperative De Production, Societe Anonyme, A Capital Variable | Proceso y sistema de control de un circuito hidráulico de varios intercambiadores de calor. |
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WO2010046498A3 (en) * | 2008-10-24 | 2012-12-27 | The Technology Partnership Plc | An apparatus for analysing an interior energy system |
US8935110B2 (en) | 2008-10-24 | 2015-01-13 | The Technology Partnership Plc | Apparatus for analysing an interior energy system |
EP2226574A3 (de) * | 2009-03-06 | 2013-11-13 | LichtBlick ZuhauseKraftwerk GmbH | Modulares Blockheizkraftwerk |
US9267706B2 (en) | 2009-03-06 | 2016-02-23 | Lichtblick Zuhausekraftwerk Gmbh | Modular communal heating and power station |
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WO2011029971A3 (es) * | 2009-09-14 | 2011-07-14 | Xial Domotecnologia, S.L. | Unidad hidráulica distribuidora para agua sanitaria y de calefacción en viviendas comunitarias |
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ITMI20101880A1 (it) * | 2010-10-14 | 2012-04-15 | Fimcim Spa | Impianto di condizionamento |
US9157643B2 (en) | 2010-10-14 | 2015-10-13 | Fimcim S.P.A. | Conditioning plant |
US9506662B2 (en) | 2010-10-14 | 2016-11-29 | Fimcim S.P.A. | Conditioning plant |
EP2442039A1 (en) * | 2010-10-14 | 2012-04-18 | Fimcim S.P.A. | Conditioning plant |
EP2479505A1 (en) * | 2011-01-22 | 2012-07-25 | Grundfos Pumps (Shanghai) Co., Ltd. | Heating-Cooling-Capacity measurement controlling and expenses-sharing system and method |
CN104105925A (zh) * | 2011-11-28 | 2014-10-15 | 贝利莫控股公司 | 用于调节在一个空间或一组多个空间中的空间温度的方法以及用于执行该方法的装置 |
US9639099B2 (en) | 2011-11-28 | 2017-05-02 | Belimo Holding Ag | Method for regulating the room temperature in a room or in a group comprising multiple rooms, and apparatus for carrying out the method |
WO2013078570A1 (de) * | 2011-11-28 | 2013-06-06 | Belimo Holding Ag | Verfahren zur regelung der raumtemperatur in einem oder einer gruppe von mehreren räumen sowie eine vorrichtung zur durchführung des verfahrens |
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US9933167B2 (en) | 2014-03-18 | 2018-04-03 | Imi Hydronic Engineering, Inc. | Retrofit smart components for use in a fluid transfer system |
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FR3069308A1 (fr) * | 2017-07-20 | 2019-01-25 | Abdelilah Koubi | Dispositif pour regulation et/ou comptage d’energie d’un plancher chauffant hydraulique et / ou un sol rafraichissant |
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Also Published As
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NL1032598C2 (nl) | 2009-02-25 |
NL1032598A1 (nl) | 2008-04-01 |
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