DE202012008658U1 - Device for direct water heating by means of photovoltaic - Google Patents

Device for direct water heating by means of photovoltaic Download PDF

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Publication number
DE202012008658U1
DE202012008658U1 DE202012008658U DE202012008658U DE202012008658U1 DE 202012008658 U1 DE202012008658 U1 DE 202012008658U1 DE 202012008658 U DE202012008658 U DE 202012008658U DE 202012008658 U DE202012008658 U DE 202012008658U DE 202012008658 U1 DE202012008658 U1 DE 202012008658U1
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photovoltaic
hot water
heating
water heating
water
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DE202012008658U
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/60—Thermal-PV hybrids

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  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

Vorrichtung zur direkten Erwärmung von Warmwasser mittels Fotovoltaik, dadurch gekennzeichnet, dass die zum Erwärmen des Wassers notwendige Energie mittels Fotovoltaik (1) gewonnen wird und durch Pulsweitenmodulation (PWM) (5) über einen Leistungssteller (4) einem Elektroheizkörper (3) zugeführt wird.Device for the direct heating of hot water by means of photovoltaics, characterized in that the energy necessary for heating the water is obtained by means of photovoltaics (1) and is fed to an electric heater (3) by pulse width modulation (PWM) (5) via a power controller (4).

Description

Stand der TechnikState of the art

Das Aufheizen von Warmwasser mittels Sonnenenergie wird zur Zeit durch geeignete Solarthermie realisiert. Dabei wird durch die Sonneneinstrahlung ein Wassergemisch (Wasser + Frostschutzmittel) als Wärmeträger erwärmt und durch einen Wärmetauscher gepumpt. Über diesen Wärmetauscher wird das Warmwasser für den Haushalt aufgeheizt.The heating of hot water by means of solar energy is currently realized by suitable solar thermal. In this case, a water mixture (water + antifreeze) is heated by the solar radiation as a heat transfer medium and pumped through a heat exchanger. About this heat exchanger, the hot water is heated for the household.

Fotovoltaik wird überwiegend genutzt um die gewonnene elektrische Energie mittels Wechselrichter in das Stromnetz einzuspeisen.Photovoltaic is mainly used to feed the electrical energy generated by means of inverters in the power grid.

Systembeschreibungsystem Description

Die Idee ist, die Fotovoltaik zum Aufheizen von Warmwasser bzw. Heißwasser zu verwenden. Hierbei wird die gewonnene Energie ohne Wechselrichter oder sonstige Umformer direkt und optimiert verheizt. Der von den Solarzellen gelieferte Gleichstrom wird direkt auf einen Verbraucher (3) gepulst. Das neue Verfahren nutzt die von Solarzellen erzeugte elektrische Energie zur direkten Erwärmung des Warmwassers.The idea is to use the photovoltaic for heating hot water or hot water. Here, the energy gained is heated directly and optimally without inverter or other converters. The direct current supplied by the solar cells is sent directly to a consumer ( 3 ) pulsed. The new process uses the electrical energy generated by solar cells to directly heat the hot water.

Die durch die Solarzellen (1) gewonnene elektrische Energie wird einem Kondensator (2) zugeführt. Dieser dient als Energiepuffer. Der Leistungssteller (4) schaltet nach einer vom Rechner (5) ermittelten Pulsweite die Heizung (3) ein und aus. Der Heizkörper (3) der in einem Wasserboiler angeordnet ist wandelt die elektrische Energie nahezu verlustfrei in Wärmeenergie um. Die Frequenz des Pulsweitengenerators (im Rechner (5)) muss so gewählt werden, dass die Spannung am Kondensator (2) sich beim Durchschalten des Leistungsstellers nur geringfügig ändert.The through the solar cells ( 1 ) electrical energy is a capacitor ( 2 ). This serves as an energy buffer. The power controller ( 4 ) switches to one of the computers ( 5 ) determined pulse width the heater ( 3 ) in and out. The radiator ( 3 ), which is arranged in a water boiler, converts the electrical energy into heat energy with virtually no loss. The frequency of the pulse width generator (in the computer ( 5 )) must be selected so that the voltage across the capacitor ( 2 ) changes only slightly when switching through the power controller.

Der Rechner (5) ermittelt aus der gemessenen Spannung und dem Strom die abgegebene Leistung der Solarzellen (1). Damit arbeiten die Solarzellen im optimalen Betriebspunkt. Diese Leistung wird durch einen Regler (5) ständig optimiert indem das optimale Pulsweitenverhältnis gesucht wird.The computer ( 5 ) determines from the measured voltage and the current the output power of the solar cells ( 1 ). The solar cells thus work at the optimum operating point. This power is controlled by a regulator ( 5 ) constantly optimized by the optimal pulse width ratio is sought.

Die Dimensionierung der Bauteile richtet sich nach dem Warmwasserbedarf.The dimensioning of the components depends on the hot water requirement.

Claims (2)

Vorrichtung zur direkten Erwärmung von Warmwasser mittels Fotovoltaik, dadurch gekennzeichnet, dass die zum Erwärmen des Wassers notwendige Energie mittels Fotovoltaik (1) gewonnen wird und durch Pulsweitenmodulation (PWM) (5) über einen Leistungssteller (4) einem Elektroheizkörper (3) zugeführt wird.Device for the direct heating of hot water by means of photovoltaic, characterized in that the energy required for heating the water by means of photovoltaic ( 1 ) and by pulse width modulation (PWM) ( 5 ) via a power controller ( 4 ) an electric radiator ( 3 ) is supplied. Vorrichtung zur direkten Erwärmung von Warmwasser mittels Fotovoltaik nach Anspruch 1 dadurch gekennzeichnet, dass durch messen und regeln der abgegebenen Leistung die Fotovoltaikzellen (1) immer im optimalen Arbeitspunkt betrieben werden, also eine optimale Energieausbeute erreicht wird.Device for direct heating of hot water by means of photovoltaic according to claim 1, characterized in that by measuring and regulating the power output, the photovoltaic cells ( 1 ) are always operated at the optimum operating point, so that an optimal energy yield is achieved.
DE202012008658U 2012-09-10 2012-09-10 Device for direct water heating by means of photovoltaic Expired - Lifetime DE202012008658U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202012008658U DE202012008658U1 (en) 2012-09-10 2012-09-10 Device for direct water heating by means of photovoltaic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012008658U DE202012008658U1 (en) 2012-09-10 2012-09-10 Device for direct water heating by means of photovoltaic

Publications (1)

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DE202012008658U1 true DE202012008658U1 (en) 2012-11-23

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DE202012008658U Expired - Lifetime DE202012008658U1 (en) 2012-09-10 2012-09-10 Device for direct water heating by means of photovoltaic

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014101899U1 (en) 2014-04-23 2014-06-25 Klaus Kropf Storage arrangement for storing regenerative energy
DE102013106207B3 (en) * 2013-06-14 2014-09-11 Refusol Gmbh Fastening device for fastening a control device to an electric heater, hot water heater and method for their preparation
DE102013019467A1 (en) * 2013-04-29 2014-10-30 Johann Aschauer Device with electrically heated heat storage for water heating

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013019467A1 (en) * 2013-04-29 2014-10-30 Johann Aschauer Device with electrically heated heat storage for water heating
DE102013106207B3 (en) * 2013-06-14 2014-09-11 Refusol Gmbh Fastening device for fastening a control device to an electric heater, hot water heater and method for their preparation
WO2014198866A1 (en) 2013-06-14 2014-12-18 Refusol Gmbh Securing device for securing a control device to an electric heating device, water heating device, and method for producing same
DE202014101899U1 (en) 2014-04-23 2014-06-25 Klaus Kropf Storage arrangement for storing regenerative energy

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