US20120288805A1 - Heating system and method for operating said system - Google Patents

Heating system and method for operating said system Download PDF

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Publication number
US20120288805A1
US20120288805A1 US13/509,822 US201013509822A US2012288805A1 US 20120288805 A1 US20120288805 A1 US 20120288805A1 US 201013509822 A US201013509822 A US 201013509822A US 2012288805 A1 US2012288805 A1 US 2012288805A1
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Prior art keywords
heating
heating device
control unit
process parameter
heating system
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Abandoned
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US13/509,822
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Stefan Eitzenhoefer
Ingo Seliger
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Viessmann Werke GmbH and Co KG
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Viessmann Werke GmbH and Co KG
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Application filed by Viessmann Werke GmbH and Co KG filed Critical Viessmann Werke GmbH and Co KG
Assigned to VIESSMANN WERKE GMBH & CO. KG reassignment VIESSMANN WERKE GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EITZENHOEFER, STEFAN, SELIGER, INGO
Publication of US20120288805A1 publication Critical patent/US20120288805A1/en
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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
    • 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
    • F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
    • 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
    • F24D2101/00—Electric generators of small-scale CHP systems
    • F24D2101/80—Electric generators driven by external combustion engines, e.g. Stirling engines
    • 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
    • F24D2103/00—Thermal aspects of small-scale CHP systems
    • F24D2103/20—Additional heat sources for supporting thermal peak loads
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/04—Gas or oil fired boiler
    • F24D2200/043—More than one gas or oil fired boiler

Definitions

  • the invention relates to a heating system according to the preamble of claim 1 and a method for operating this system according to the preamble of claim 4 .
  • a heating system comprising a first and a second heating device and a common control unit, where the first and the second heating device is designed such that it can be operated with the same fluid fuel (in particular oil or gas) and it can be controlled by means of the control unit, is generally known so that no particular documentary evidence is required in this regard.
  • Such a heating system is usually connected to a fuel source (gas or oil connection) via a (single) connection.
  • a gas or oil meter is usually attached to this connection so that the total consumption of the heating system can be determined.
  • This object is solved objectively with a heating system of the type specified initially by the features specified in the characterizing part of claim 1 .
  • the features of the characterizing part of claim 4 solve this object in terms of the method.
  • the heating system can also comprise more than two heating devices.
  • At least one time-dependent process parameter of the control unit is or will be provided or used as a calculation basis for determining fuel consumption values of the first and/or second heater.
  • the consumption (gas or oil) of the heating device according to the invention is calculated in each case on the basis of process parameters provided in the control unit, which is described more accurately further below. As explained initially, in this way it is possible to dispense with a second cost-intensive fuel meter.
  • one heating device is configured as a so-called combined heat and power heating device, that is as a heating device having combined heat and power, and the other heating device is configured as a commercially available heating boiler, in particular a peak load boiler.
  • the solution according to the invention makes it possible to separately determine the fuel fraction consumed by the combined heat and power heating device, which is of major advantage in particular in relation to possible tax refund claims.
  • a heating system which comprises a heating device, that can be operated with a fluid fuel, and a control unit in which a time-dependent process parameter is provided as a calculation basis for determining the fuel consumption of the heating device.
  • FIG. 1 shows schematically the heating system according to the invention comprising two heating devices and
  • FIG. 2 shows the time behavior of a process parameter as a diagram.
  • the heating system shown in FIG. 1 consists of a first and a second heating device 1 , 2 , and a common control unit 3 , which regulates the interplay of the heating devices 1 , 2 .
  • One heating device 1 is configured here as a so-called combined heat and power heating device, in particular as a Stirling engine. This heating device 1 is used to cover a base load and produces both heat (indicated by the reference number 4 ) and power (indicated by the reference number 5 ).
  • the other heating device 2 is configured as a conventional heating boiler and is used to cover peak heat loads (again indicated by the reference number 4 ). Both heating devices 1 , 2 are operated with the same fluid fuel, in particular gas, where the reference number 6 indicates the fuel supply.
  • At least one time-dependent process parameter (if desired or favorable, a plurality thereof are also possible) of the control unit 3 is provided or will be used as a calculation basis for determining fuel consumption values of the first and/or second heating device 1 , 2 .
  • the predetermined correlation is here stored in particular in the form of a data set or a data curve in the control unit 3 and assigns a fuel consumption value to each process parameter integral value.
  • an electrical power generated by the heating device 1 configured as a combined heat and power heating device is used. Knowing the efficiency of the combined heat and power heating device, the fuel consumption can be determined on the basis of the electrical power generated in a time interval.
  • a rotational speed of at least one burner fan disposed on one of the two heating devices 1 , 2 is used as the process parameter, which comprises the option of taking into account the rotational speeds of a plurality of fans of the heating devices 1 , 2 .
  • the amount of air conveyed in a time interval can be determined from the rotational speed and therefore ultimately the amount of fuel consumed by means of the so-called air-fuel ratio.
  • a temperature measured at one of the two heating devices 1 , 2 is used as the process parameter since the fuel consumption can also be determined from this (with a known or predefined correlation to the amount of energy consumed).
  • trigger values for gas quantity adjusting units for example, the trigger current, the voltage, or the electrical power input of a gas fitting
  • step positions of an air deflecting valve motor or an adjusting motor for the throttle flap position can be considered as process parameters.
  • FIG. 2 the behavior of a process parameter V(t) is plotted over time t. If this process parameter is integrated, for example, between the time limits t 1 and t 2 , a certain scalar value is obtained therefrom. The fuel consumption value for this time interval can be calculated for this by means of the mentioned, previously determined, and stored correlation.
  • either the consumption of one, the other, or both heating devices 1 , 2 can be calculated, where alternatively the total consumption by means of an appropriate meter disposed on the gas supply line (see reference number 6 ) is optionally also taken into account.
  • an appropriate meter disposed on the gas supply line see reference number 6
  • separate meters at the individual heating devices 1 , 2 can be dispensed with.

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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)
  • Regulation And Control Of Combustion (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

The invention relates to a heating system and a method for operating said system, comprising a first and a second heating device (1, 2) and a common control unit (3), wherein the first and the second heating device (1, 2) is designed such that it can be operated with the same fluid fuel and that it can be controlled by means of the control unit (3). According to the invention, at least one time-dependent process parameter of the control unit (3) is intended and/or used as a calculation basis for determining fuel consumption values of the first and/or second heating device (1, 2).

Description

  • The invention relates to a heating system according to the preamble of claim 1 and a method for operating this system according to the preamble of claim 4.
  • A heating system comprising a first and a second heating device and a common control unit, where the first and the second heating device is designed such that it can be operated with the same fluid fuel (in particular oil or gas) and it can be controlled by means of the control unit, is generally known so that no particular documentary evidence is required in this regard.
  • Such a heating system is usually connected to a fuel source (gas or oil connection) via a (single) connection. A gas or oil meter is usually attached to this connection so that the total consumption of the heating system can be determined.
  • It is the object of the invention to be able to determine the individual consumption of the heating devices in a heating system of the type specified initially and specifically without, which would be obvious, positioning respectively one gas or oil meter upstream of the particular heating device.
  • This object is solved objectively with a heating system of the type specified initially by the features specified in the characterizing part of claim 1. The features of the characterizing part of claim 4 solve this object in terms of the method. Naturally the heating system can also comprise more than two heating devices.
  • According to the invention, therefore at least one time-dependent process parameter of the control unit is or will be provided or used as a calculation basis for determining fuel consumption values of the first and/or second heater.
  • In other words, the consumption (gas or oil) of the heating device according to the invention is calculated in each case on the basis of process parameters provided in the control unit, which is described more accurately further below. As explained initially, in this way it is possible to dispense with a second cost-intensive fuel meter.
  • It is preferably provided that one heating device is configured as a so-called combined heat and power heating device, that is as a heating device having combined heat and power, and the other heating device is configured as a commercially available heating boiler, in particular a peak load boiler. In a heating system of this type, the solution according to the invention makes it possible to separately determine the fuel fraction consumed by the combined heat and power heating device, which is of major advantage in particular in relation to possible tax refund claims.
  • Other advantageous further developments are obtained from the dependent claims.
  • For the sake of completeness, reference is made to DE 199 16 186 C2, from which a heating system is known, which comprises a heating device, that can be operated with a fluid fuel, and a control unit in which a time-dependent process parameter is provided as a calculation basis for determining the fuel consumption of the heating device.
  • The heating system according to the invention or the method according to the invention including its advantageous further developments according to the dependent claims is explained in detail hereinafter with reference to the diagrammatic depiction of an exemplary embodiment.
  • In the figures
  • FIG. 1 shows schematically the heating system according to the invention comprising two heating devices and
  • FIG. 2 shows the time behavior of a process parameter as a diagram.
    •
  • The heating system shown in FIG. 1 consists of a first and a second heating device 1, 2, and a common control unit 3, which regulates the interplay of the heating devices 1, 2. One heating device 1 is configured here as a so-called combined heat and power heating device, in particular as a Stirling engine. This heating device 1 is used to cover a base load and produces both heat (indicated by the reference number 4) and power (indicated by the reference number 5). The other heating device 2 is configured as a conventional heating boiler and is used to cover peak heat loads (again indicated by the reference number 4). Both heating devices 1, 2 are operated with the same fluid fuel, in particular gas, where the reference number 6 indicates the fuel supply.
  • It is now essential for the heating system according to the invention that at least one time-dependent process parameter (if desired or favorable, a plurality thereof are also possible) of the control unit 3 is provided or will be used as a calculation basis for determining fuel consumption values of the first and/or second heating device 1, 2.
  • This is preferably accomplished by integrating the process parameter over the time and determining the fuel consumption value from this and using a predetermined correlation. The predetermined correlation is here stored in particular in the form of a data set or a data curve in the control unit 3 and assigns a fuel consumption value to each process parameter integral value.
  • With regard to the said process parameter, according to one solution of the invention, an electrical power generated by the heating device 1 configured as a combined heat and power heating device is used. Knowing the efficiency of the combined heat and power heating device, the fuel consumption can be determined on the basis of the electrical power generated in a time interval.
  • According to another solution of the invention, a rotational speed of at least one burner fan disposed on one of the two heating devices 1, 2 is used as the process parameter, which comprises the option of taking into account the rotational speeds of a plurality of fans of the heating devices 1, 2. The amount of air conveyed in a time interval can be determined from the rotational speed and therefore ultimately the amount of fuel consumed by means of the so-called air-fuel ratio.
  • Furthermore, according to a further solution of the invention, a temperature measured at one of the two heating devices 1, 2 is used as the process parameter since the fuel consumption can also be determined from this (with a known or predefined correlation to the amount of energy consumed).
  • In addition, for example, trigger values for gas quantity adjusting units (for example, the trigger current, the voltage, or the electrical power input of a gas fitting) or the step positions of an air deflecting valve motor or an adjusting motor for the throttle flap position can be considered as process parameters.
  • In FIG. 2 the behavior of a process parameter V(t) is plotted over time t. If this process parameter is integrated, for example, between the time limits t1 and t2, a certain scalar value is obtained therefrom. The fuel consumption value for this time interval can be calculated for this by means of the mentioned, previously determined, and stored correlation.
  • Depending on which process parameters are used, either the consumption of one, the other, or both heating devices 1, 2 can be calculated, where alternatively the total consumption by means of an appropriate meter disposed on the gas supply line (see reference number 6) is optionally also taken into account. The crucial thing is that thanks to the solution according to the invention using the process parameters, separate meters at the individual heating devices 1, 2 can be dispensed with.
    • REFERENCE LIST
    • 1 First heating device
    • 2 Second heating device
    • 3 Control unit
    • 4 Heat
    • 5 Current
    • 6 Gas

Claims (8)

1. A heating system comprising a first and a second heating device (1, 2) and a common control unit (3), wherein the first and second heating device (1, 2) are designed so that they can be operated with the same fluid fuel and can be controlled by means of the control unit (3),
wherein at least one time-dependent process parameter of the control unit (3) is provided as a calculation basis for determining fuel consumption values of the first and/or second heating device (1, 2).
2. The heating system according to claim 1,
wherein one of the two heating devices (1) is configured as a combined heat and power heating device, in particular as a Stirling engine, for generating heat and power.
3. The heating system according to claim 1,
wherein one of the two heating devices (2) is configured as a heating boiler for generating heat.
4. A method for operating a heating system comprising a first and a second heating device (1, 2) and a common control unit (3), wherein the first and second heating device (1, 2) are operated with the same fluid fuel and are controlled by means of the control unit (3),
wherein at least one time-dependent process parameter of the control unit (3) is provided as a calculation basis for determining fuel consumption values of the first and/or second heating device (1, 2).
5. The method according to claim 4,
wherein the process parameter is integrated over the time and the fuel consumption value is determined from this and using a predetermined correlation.
6. The method according to claim 4,
wherein an electrical power generated by a heating device (1) configured as a combined heat and power heating device is used as a process parameter.
7. The method according to claim 4,
wherein a rotational speed of a burner fan disposed on one of the two heating devices (1, 2) is used as a process parameter.
8. The method according to claim 4,
wherein a temperature measured at one of the two heating devices (1, 2) is used as a process parameter.
US13/509,822 2009-11-16 2010-11-05 Heating system and method for operating said system Abandoned US20120288805A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009053011.8 2009-11-16
DE102009053011.8A DE102009053011C5 (en) 2009-11-16 2009-11-16 Heating system and method of operation of this system
PCT/DE2010/001285 WO2011057602A2 (en) 2009-11-16 2010-11-05 Heating system and method for operating said system

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US20120288805A1 true US20120288805A1 (en) 2012-11-15

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US13/509,822 Abandoned US20120288805A1 (en) 2009-11-16 2010-11-05 Heating system and method for operating said system

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US (1) US20120288805A1 (en)
EP (1) EP2501999A2 (en)
JP (1) JP2013511018A (en)
DE (1) DE102009053011C5 (en)
WO (1) WO2011057602A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864972A (en) * 1987-06-08 1989-09-12 Batey John E Boiler optimization for multiple boiler heating plants
US5172654A (en) * 1992-02-10 1992-12-22 Century Controls, Inc. Microprocessor-based boiler controller
USRE36373E (en) * 1993-08-23 1999-11-02 Benz; Robert P. Low NOx burner process for boilers
US6799146B1 (en) * 1998-03-24 2004-09-28 Exergetic Systems Llc Method for remote on-line advisory diagnostics and dynamic heat rate when used for input/loss performance monitoring of a power plant
US20070129878A1 (en) * 2005-12-07 2007-06-07 Netistix Technologies Corp. Methods and system for determining consumption and fuel efficiency in vehicles
US20070175271A1 (en) * 2006-02-01 2007-08-02 Marcelo Roberto Pividori Fuel consumption meter for internal combustion engines and method
US20080119126A1 (en) * 2006-11-10 2008-05-22 Oyl Research And Development Centre Sdn. Bhd. Apparatus for Controlling an Air Distribution System
US20080156082A1 (en) * 2006-08-03 2008-07-03 Fev Motorentechnik Gmbh Determining The Fuel Consumption Of An Internal Combustion Engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19916186C2 (en) * 1999-04-10 2001-03-08 Sieger Heizsysteme Gmbh Heat generators fired with oil or gas
GB0305566D0 (en) 2003-03-11 2003-04-16 Microgen Energy Ltd A splitter valve
GB2408112A (en) 2003-11-14 2005-05-18 Microgen Energy Ltd Domestic Heat and Power System
GB0421634D0 (en) 2004-09-29 2004-10-27 Microgen Energy Ltd A splitter valve
DE102006027269B3 (en) * 2006-06-09 2007-11-22 Honeywell Technologies S.A.R.L. Water heater, has charging circuit charging rechargeable battery, where charging circuit loads battery only when current generated by generator is larger than current needed for operation of control device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864972A (en) * 1987-06-08 1989-09-12 Batey John E Boiler optimization for multiple boiler heating plants
US5172654A (en) * 1992-02-10 1992-12-22 Century Controls, Inc. Microprocessor-based boiler controller
USRE36373E (en) * 1993-08-23 1999-11-02 Benz; Robert P. Low NOx burner process for boilers
US6799146B1 (en) * 1998-03-24 2004-09-28 Exergetic Systems Llc Method for remote on-line advisory diagnostics and dynamic heat rate when used for input/loss performance monitoring of a power plant
US20070129878A1 (en) * 2005-12-07 2007-06-07 Netistix Technologies Corp. Methods and system for determining consumption and fuel efficiency in vehicles
US20070175271A1 (en) * 2006-02-01 2007-08-02 Marcelo Roberto Pividori Fuel consumption meter for internal combustion engines and method
US20080156082A1 (en) * 2006-08-03 2008-07-03 Fev Motorentechnik Gmbh Determining The Fuel Consumption Of An Internal Combustion Engine
US20080119126A1 (en) * 2006-11-10 2008-05-22 Oyl Research And Development Centre Sdn. Bhd. Apparatus for Controlling an Air Distribution System

Also Published As

Publication number Publication date
EP2501999A2 (en) 2012-09-26
JP2013511018A (en) 2013-03-28
WO2011057602A2 (en) 2011-05-19
DE102009053011C5 (en) 2014-03-27
DE102009053011B3 (en) 2011-05-19
WO2011057602A3 (en) 2012-01-05

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Owner name: VIESSMANN WERKE GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EITZENHOEFER, STEFAN;SELIGER, INGO;REEL/FRAME:028325/0455

Effective date: 20120516

STCB Information on status: application discontinuation

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