DE9207743U1 - Control device with power adjustment for solar thermal systems - Google Patents
Control device with power adjustment for solar thermal systemsInfo
- Publication number
- DE9207743U1 DE9207743U1 DE9207743U DE9207743U DE9207743U1 DE 9207743 U1 DE9207743 U1 DE 9207743U1 DE 9207743 U DE9207743 U DE 9207743U DE 9207743 U DE9207743 U DE 9207743U DE 9207743 U1 DE9207743 U1 DE 9207743U1
- Authority
- DE
- Germany
- Prior art keywords
- control device
- temperature
- hot water
- collector
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000002123 temporal effect Effects 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
- G05D23/1924—Control of temperature characterised by the use of electric means characterised by the type of controller using thermal energy, the availability of which is aleatory
-
- 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
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1057—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses solar energy
-
- 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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
- 1 -Bezeichnung der Erfindung - 1 - Description of the invention
Regelungseinrichtung mit Leistungsanpassung für sol &agr;rtermisehe AnlogenControl system with power adjustment for solar thermal Analogs
AnmelderApplicant
Ditmor Schreiber Ralf ReutterDitmor Schreiber Ralf Reutter
Kaiser-Karl-Str. 19 Freiligrathstr. 24Kaiser-Karl-Str. 19 Freiligrathstr. 24
6535 Gau-Algesheim 6090 Rüsselsheim6535 Gau-Algesheim 6090 Rüsselsheim
Die Erfindung betrifft eine Regelungseinrichtung für solartermische Anlagen zur Warmwassererzeugung mit Sonnenkollektoren und einem Warmwasserspeicher.The invention relates to a control device for solar thermal systems for generating hot water with solar collectors and a hot water storage tank.
Es ist Stand der Technik, an so lartermise hen Anlagen eine Temperaturmessung vorzugenehmen und einen Regler einzusetzen .It is state of the art to measure the temperature of such thermal systems and to use a controller.
In der Regel werden die Temperaturen am Sonnenkollektor und im Warmwasserspeicher aufgenommen. In Abhängigkeit von der Differenz dieser Temperaturen wird eine Umwälzpumpe ein- bzw. ausgeschaltet.As a rule, the temperatures are recorded at the solar collector and in the hot water tank. Depending on the difference between these temperatures, a circulation pump is switched on or off.
Für diese zwar einfache, aber energetisch nicht optimale Regelung genügt im allgemeinen ein Zwei-Punkt-Reg1er mit fest einstellbaren Temperaturdiffenz- und Hysteresewe r ten .For this simple but not energetically optimal control, a two-point controller with fixed temperature difference and hysteresis values is generally sufficient.
Solche, bisherige Regelungseinrichtungen berücksichtigen nicht die Abhängikeit des Kollektrowirkungsgrades von KoI1ekt&ogr;rtemperat&ugr;r und Pumpedurchfluß.Such existing control systems do not take into account the dependence of the collector efficiency on the collector temperature and pump flow.
Das Strah1 &ugr; ngsangeot der Sonne ist bekanntlich starken Schwankungen unterworfen, die nur gemittelt tageszeit1ich oder jahreszeitlich bestimmbar sind. Die Entnahmeleistung ist jedochn nicht beeinflußbar, da an der Umwälzpumpe eine feste Durchflußmenge eingestellt ist (ausgelegt üblicherweise auf einen mittleren Einstrah1 wert).The sun's radiation is known to be subject to strong fluctuations, which can only be determined on average over the course of the day or year. However, the extraction rate cannot be influenced, as the circulation pump is set to a fixed flow rate (usually designed for an average radiation value).
Daher kommt es bei hoher Sonneneinstrahlung zu einer erhöhten Kollektortemperatur und somit zu einem geringen Ko 1 1 e k t &ogr; r w i r k &ugr; &eegr; g s g r ad (aufgrund des hohem Wärmeverlustes) .Therefore, when there is high solar radiation, the collector temperature increases and thus the coefficient of efficiency decreases (due to the high heat loss).
Bei geringer Einstrahlung kühlt bei gleichem Pumpendurchfluß der Kollektor soweit ab, daß nur ein sehr geringer oder sogar kein Energieeintrag in den Warmwasserspeicher möglich ist.When the radiation is low and the pump flow remains the same, the collector cools down to such an extent that only very little or even no energy can be transferred to the hot water tank.
Bei einem angepassten Betrieb zwischen Sonnenkollektor und Speicher erzielt mam im Jahresmittel einen bis zu 20% höheren Wirkungsgrad.With an adapted operation between solar collector and storage, an annual average efficiency of up to 20% higher can be achieved.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die Regelungseinrichtung mit einer Leistungsanpassung auszustatten. Ziel ist es, den maximalen Energiefluß vonThe present invention is based on the task of equipping the control device with a power adjustment. The aim is to achieve the maximum energy flow from
der "Energiequelle" Sonnenkollektor zur "Energiesenke" Warmwasserspeicher zu erreichen. Der maximale Energiefluß ist abhängig von der momentanen Einstrahlung und der Speicherladung.from the "energy source" solar collector to the "energy sink" hot water storage tank. The maximum energy flow depends on the current radiation and the storage tank charge.
Die Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Regelungseinrichtung für s&ogr; 1 &agr;rtermisehe Anlagen zur Warmwassererzeugung mit einer Leistungsanpassung ausgestattet wird. Die Regelungseinrichtung besteht aus aus Temperaturfühlern, einer Regelung und einer Umwälzpumpe.The object is achieved according to the invention in that the control device for s&ogr; 1 αrthermic systems for hot water production is equipped with a power adjustment. The control device consists of temperature sensors, a control and a circulation pump.
In vorteilhafter Weise wird durch Temperaturmessung der dynamische Zustand der zu regelnden Anlage erfasst. Die Regelungseinrichtung ermöglicht die Anpassung der Kollektorentanhmeleistung. The dynamic state of the system to be controlled is advantageously recorded by temperature measurement. The control device enables the collector power to be adjusted.
Vorgesehen sind Temperaturfühler zur Erfassung von Kollektortemperatur (TK), Warmwasserspeichertemperatur (TSU), Wärmetauschervorlauf- (TV) und - rück 1 auftemperatur (TR).Temperature sensors are provided for recording the collector temperature (TK), hot water storage tank temperature (TSU), heat exchanger flow temperature (TV) and return temperature (TR).
Erfindungsgemäß wird der dynamische Zustand erfasst, indem der Gradient von der Temperaturdifferenz der beiden Wärmtauschertemperaturen (TV und TR) im Verhältnis zum Gradienten der Ko11ekt&ogr;rtem&rgr;er&agr;t&ugr;r (TK) gesetzt wird, sodaß damit eine Größe für die zeitliche Veränderung des Leistungsangebotes vorliegt.According to the invention, the dynamic state is recorded by setting the gradient of the temperature difference between the two heat exchanger temperatures (TV and TR) in relation to the gradient of the collector temperature (TK), so that a value for the temporal change in the power supply is available.
Die optimale Ko11ektorentnameleistung wird durch Vorgabe eines Durchflußsollwertes an die Umwäzpumpe mit Drehzahlregelung eingestellt. Die Drehzahlregelung der Umwälzpumpe erfolgt bevorzugt durch Pulsbreitenmodulation.The optimum collector extraction performance is set by specifying a flow target value for the circulation pump with speed control. The speed control of the circulation pump is preferably carried out by pulse width modulation.
Es wird ein eigens für diese Erfindung entwickelter, m i c roprozessorgeste&ugr;erter Regler eingesetzt, der außer den genannten Reglerfunktionen auch den Ein- und Ausschaltvorgang der Anlage übernimmt. Weiterhin ist eine Anzeige des Betriebszustandes vorgesehen.A microprocessor-controlled controller specially developed for this invention is used, which, in addition to the controller functions mentioned, also takes over the switching on and off process of the system. A display of the operating status is also provided.
Eine erweiterte Ausführung des Reglers stellt zusätzlich ein Vorgabesignal für eine Kesse 1nachheizung bereit. Zu diesem Zweck ist ein weiterer Temperatursensor zur Messung der Warmwasserspeichertemperatur vorgesehen.An extended version of the controller also provides a setting signal for boiler 1 reheating. For this purpose, an additional temperature sensor is provided to measure the hot water tank temperature.
Abb: Regelungseinrichtung mit Leistungsanpassung für s&ogr; 1 &agr;rtermische AnlagenFig: Control device with power adjustment for s&ogr; 1 &agr;rthermal systems
PS : drehzah1 ge rege 11e Umwälzpumpe (z.B. pulsbreitenmoduliert) PS: speed-controlled circulation pump (e.g. pulse width modulated)
KW : Ka11wasser&zgr; &ugr; 1 &agr; &ugr;fKW : Ka11wasserζ &ugr; 1 α &ugr;f
WW : WarmwasserentnahmeWW : Hot water extraction
TK : Temperaturfühler Ko11ektor tempera türTK : Temperature sensor Co11ector tempera door
TSU: Temperat&ugr;rfüh 1 er W &agr; r m w&agr;sserspeichertemperat&ugr;r (unten!TSU: Temperature sensor for water storage tank temperature (below!
TV : Temperaturfühler Wärmetauscher vor 1 aufTV : Temperature sensor heat exchanger 1 on
TR : Temperaturfühler Wärmetauscherrück laufTR : Heat exchanger return temperature sensor
Claims (9)
dadurch gekennzeichnet,2. Control device according to claim 1,
characterized,
dadurch gekennzeichnet,3. Control device according to claim 2,
characterized,
dadurch gekennzeichnet,4. Control device according to claim 3,
characterized,
dadurch gekennzeichnet,5. Control device according to claim 2,
characterized,
dadurch gekennzeichnet,6. Control device according to claim 2,
characterized,
dadurch gekennzeichnet,7. Control device according to claim 6,
characterized,
dadurch gekennzeichnet,8. Control device according to claim 5,
characterized,
dadurch gekennzeichnet,9. Control device according to claim 2,
characterized,
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9207743U DE9207743U1 (en) | 1992-06-09 | 1992-06-09 | Control device with power adjustment for solar thermal systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9207743U DE9207743U1 (en) | 1992-06-09 | 1992-06-09 | Control device with power adjustment for solar thermal systems |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9207743U1 true DE9207743U1 (en) | 1992-11-19 |
Family
ID=6880358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9207743U Expired - Lifetime DE9207743U1 (en) | 1992-06-09 | 1992-06-09 | Control device with power adjustment for solar thermal systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9207743U1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19508400A1 (en) * | 1995-03-09 | 1996-09-12 | Gresp Solare Trocknungs Gmbh | Drying assembly incorporates solar-powered air heaters located in series and parallel |
DE19543533A1 (en) * | 1995-11-22 | 1997-05-28 | Solvis Solarsysteme Gmbh | Solar system with gear pump |
DE19606037A1 (en) * | 1996-02-19 | 1997-08-28 | Dietmar Dr Ing Wuensche | Solar-powered drinking water assembly has tubes integrated into dark textile strips |
WO1997034111A1 (en) | 1996-03-13 | 1997-09-18 | Boehringer Volker | Modulating solar-power regulator |
DE19705008A1 (en) * | 1997-02-10 | 1998-08-13 | Harald Friedrich | Solar heating control system e.g. for water |
DE19643530A1 (en) * | 1996-10-23 | 1998-10-29 | Esaa Boehringer Gmbh | Procedure for controlling thermal store of solar plant |
EP0962714A3 (en) * | 1998-06-03 | 2002-04-17 | SOLVIS Solarsysteme GmbH | Method and apparatus for regulation circulation pumps in solar collector circuits of solar installations with storage |
DE4313276C2 (en) * | 1993-04-23 | 2002-07-11 | Wolfgang Koenig | Solar system and method for regulating the same |
DE19706506B4 (en) * | 1996-02-19 | 2005-07-28 | Vaillant Gmbh | Stratified storage arrangement |
EP1950499A3 (en) * | 2007-01-24 | 2013-12-04 | Vaillant GmbH | Method for operating a solar thermal array |
FR3008484A1 (en) * | 2013-07-10 | 2015-01-16 | Ass Pour La Rech Et Le Dev De Methodes Et Processus Ind Armines | ENERGY PRODUCTION PLANT COMPRISING A WEATHER PREDICTION DEVICE, IN PARTICULAR A SOLAR WATER HEATER INSTALLATION COMPRISING SUCH A DEVICE |
DE102012105000B4 (en) * | 2011-08-09 | 2017-03-02 | Walter Meier (Klima Schweiz) Ag | Solar system and method for operating a solar system |
-
1992
- 1992-06-09 DE DE9207743U patent/DE9207743U1/en not_active Expired - Lifetime
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4313276C2 (en) * | 1993-04-23 | 2002-07-11 | Wolfgang Koenig | Solar system and method for regulating the same |
DE19508400A1 (en) * | 1995-03-09 | 1996-09-12 | Gresp Solare Trocknungs Gmbh | Drying assembly incorporates solar-powered air heaters located in series and parallel |
DE19508400B4 (en) * | 1995-03-09 | 2011-07-07 | GRAMMER Solar GmbH, 92224 | Device for drying moist material |
DE19543533A1 (en) * | 1995-11-22 | 1997-05-28 | Solvis Solarsysteme Gmbh | Solar system with gear pump |
DE19543533C2 (en) * | 1995-11-22 | 1998-10-08 | Solvis Solarsysteme Gmbh | Solar system with gear pump |
DE19606037A1 (en) * | 1996-02-19 | 1997-08-28 | Dietmar Dr Ing Wuensche | Solar-powered drinking water assembly has tubes integrated into dark textile strips |
DE19706506B4 (en) * | 1996-02-19 | 2005-07-28 | Vaillant Gmbh | Stratified storage arrangement |
AU732650B2 (en) * | 1996-03-13 | 2001-04-26 | Volker Bohringer | Modulating solar-power regulator |
US6047696A (en) * | 1996-03-13 | 2000-04-11 | Boehringer; Volker | Modulating solar-power regulator |
WO1997034111A1 (en) | 1996-03-13 | 1997-09-18 | Boehringer Volker | Modulating solar-power regulator |
DE19643530A1 (en) * | 1996-10-23 | 1998-10-29 | Esaa Boehringer Gmbh | Procedure for controlling thermal store of solar plant |
DE19705008A1 (en) * | 1997-02-10 | 1998-08-13 | Harald Friedrich | Solar heating control system e.g. for water |
EP0962714A3 (en) * | 1998-06-03 | 2002-04-17 | SOLVIS Solarsysteme GmbH | Method and apparatus for regulation circulation pumps in solar collector circuits of solar installations with storage |
DE19824543C5 (en) * | 1998-06-03 | 2004-04-29 | Solvis Solarsysteme Gmbh | Process for controlling circulation pumps in the solar collector circuits of solar systems with storage |
EP1950499A3 (en) * | 2007-01-24 | 2013-12-04 | Vaillant GmbH | Method for operating a solar thermal array |
DE102012105000B4 (en) * | 2011-08-09 | 2017-03-02 | Walter Meier (Klima Schweiz) Ag | Solar system and method for operating a solar system |
FR3008484A1 (en) * | 2013-07-10 | 2015-01-16 | Ass Pour La Rech Et Le Dev De Methodes Et Processus Ind Armines | ENERGY PRODUCTION PLANT COMPRISING A WEATHER PREDICTION DEVICE, IN PARTICULAR A SOLAR WATER HEATER INSTALLATION COMPRISING SUCH A DEVICE |
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