Abstract:
Systems and methods for controlling a heat pump water heater (HPWH) are disclosed. The systems include an interface for accepting a user input and configured to indicate a mode of operation, and indicate at least one error condition when an error condition exists. The systems are operative to diagnose various failure conditions and as advise a user that maintenance may be needed and to adjust operation for varying environmental or other external conditions.
Abstract:
Die Erfindung betrifft eine Wärmepumpenheizung (1) mit einem Arbeitsmedium (2), das in einem geschlossenen Kreislauf einen Verdampfer (3), einen Kompressor (4), einen Kondensator (17a, 17b; 17) und ein Expansionsventil (5) durchströmt, mit einer in einem geschlossenen Kreislauf geführten, hierbei durch einen Speichererhitzer (7) strömenden Flüssigkeit (6), wobei der Kondensator (17a, 17b; 17) Energie vom Arbeitsmedium (2) an die Flüssigkeit (6) überträgt, wobei die Flüssigkeit (6) im Speichererhitzer (7) eine Temperaturschichtung in Schwerkraftrichtung ausbildet, mit einer Warmwasserbereitungseinrichtung, die einen ersten Wärmetauscher (8) umfasst, der Wärme von der Flüssigkeit (6) auf Wasser (9a) überträgt und damit Warmwasser (10) bereitstellt. Die Warmwasserbereitungseinrichtung umfasst zusätzlich einen zweiten Wärmetauscher (17c), der hinsichtlich des für die Warmwasserbereitung bestimmten Wassers dem ersten Wärmetauscher (8) vorgeschaltet ist, zur Vorerwärmung des Kaltwassers (9).
Abstract:
The invention relates to a heat accumulator for storing thermal energy, comprising a storage container (4) for receiving a storage fluid, which can be stored as a function of the temperature thereof in different, superposed zones (4.1, 4.3, 4.5) of the storage container (4), wherein a heat pump (2) is provided, which is disposed between a lower zone (4.1) and a higher zone (4.3, 4.5) for shifting thermal energy from the lower zone (4.1) into the higher zone (4.3, 4.5). Another object of the invention is a method for shifting thermal energy in a heat accumulator, comprising a storage container (4) for receiving a storage fluid, which can be stored as a function of the temperature thereof in different, superposed zones (4.1, 4.3, 4.5) of the storage container (4), wherein a heat pump (2) delivers thermal energy from a lower zone (4.1) into a higher zone (4.3, 4.5).
Abstract:
Un ballon de distribution (8) équipe une installation de chauffage muni, à la fois, d'un circuit général de circulation d'un fluide caloporteur dont une partie dite circuit de chauffage est muni de terminaux de chauffage, d'un générateur principal et d'un générateur d'appoint de chauffage dudit fluide, d'un circulateur et sur chaque entrée respective d'un retour de fluide dans un générateur et un circulateur pour un départ de fluide chaud, à partir du ballon (8), dans le circuit de chauffage Le ballon (8) contient une partie du fluide circulant dans le circuit général et comporte à sa périphérie des entrées et des sorties dudit fluide dans le circuit de chauffage dont une entrée (10) de fluide chaud provenant du générateur principal et une sortie (11) du fluide raccordée à un retour dans le générateur d'appoint reliées entre-elles, à l'intérieur du ballon (8), par un tube (15) muni d'un orifice (16).
Abstract:
An air-conditioning water heater comprises a water tank (3) with an inlet (1) and an outlet (2), and a heat pump system. It is characterized in that the water tank (3) is flat shape, and its height and length are both bigger than its width. The flat water tank contains two or more than two cylindrical sub internal containers (30) connected in series and arranged horizontally or vertically.
Abstract:
Eine Vorrichtung zur Steuerung der Heizleistung einer Wärmepumpe ist mit einem Speicherkreislauf versehen, wobei transportierte Wärmeenergie in einem Speicherbehälter (2) pufferbar ist. Aufgabe der Erfindung ist es, das Temperaturniveau des Wärmeträgers anzuheben und die maximal mögliche Energiemenge im Speicherbehälter (2) zu speichern. Dazu ist im Kreislauf des Wärmeträgermediums ein Enthitzer (8) vorgesehen, dem ein Volumenstrom des Wärmeträgermediums von einem Verflüssiger (6) der Wärmepumpe gesteuert zugeleitet werden kann.
Abstract:
A method of controlling a startup operation in a heat pump water heater system prevents inadvertent shutdowns and/or low operating efficiencies via closed loop control of the system. The method includes choosing an expansion valve opening at startup near an expected steady state value to ensure high system capacity as early as possible, setting a water pump signal to a high level to maximize cycle efficiency during warm-up, and applying closed loop control over the expansion valve and the water pump to increase the pressure in the system in a controlled manner until the system reaches a steady operating state. The method provides stable startup control even if a transcritical vapor compression system is used as the heat pump
Abstract:
A method of controlling a startup operation in a heat pump water heater system prevents inadvertent shutdowns and/or low operating efficiencies via closed loop control of the system. The method includes choosing an expansion valve opening at startup near an expected steady state value to ensure high system capacity as early as possible, setting a water pump signal to a high level to maximize cycle efficiency during warm-up, and applying closed loop control over the expansion valve and the water pump to increase the pressure in the system in a controlled manner until the system reaches a steady operating state. The method provides stable startup control even if a transcritical vapor compression system is used as the heat pump
Abstract:
A multi-purpose heat source for the heating system of a building comprising a heat pump coupled with a low temperature source and fitted with a refrigerant piping (11) coupled in heating with the inner space of an accumulator container (3) coupled in heating with a warm supply water reservoir adapted to be connected to a supply of cold supply water and to a warm supply water distribution piping inside the building, the inner space of the accumulator container being connectable to the heating system of the building. The inner space of the accumulator container (3) is passed through, on the one hand, by a refrigerant piping (11) of a heat pump (1) serving therein as a heat exchanger refrigerant/inner space of the accumulator container (3) and, on the other hand, by a water piping (5) serving therein as a heat exchanger inner space of the accumulator container (3)/warm supply water.