摘要:
A power plant uses an energy source ( 1 ) to produce electricity in a first generator. The electricity from the first generator provides heat to a solid heat storage medium ( 2 ). The solid heat storage medium ( 2 ) is a heat exchanger and water is pumped through the solid heat storage medium to receive heat in order to convert the water into steam. The steam is then used to drive a set of second generators ( 4 ) to produce electricity. In this way, electricity can be produced using heat from the heat storage medium ( 2 ) whether or not the energy source ( 1 ) is operable. For example, if the energy source ( 1 ) is a wind turbine and the wind is not traveling at sufficient velocity to produce electricity, the heat storage medium can be used to convert water into steam, and reheat steam which is then used to generate electricity in a second generator ( 4 ).
摘要:
The present invention relates to an apparatus for heating fluid in a heating system, such as central heating, comprising at least one heating device with: a container (3) filled with transfer medium, having an inlet connection (4) and an outlet connection (5) and in the interior thereof an electric heating element (9) and a heat accumulator; a feed-through pipe functioning as heat exchanger which is immersed in the transfer medium and connected to the inlet connection and the outlet connection; and pumping means (6) connected to the feed-through pipe to push the fluid therethrough. Particularly mass and heat characteristics of the transfer medium, heat exchanging surface area of the heating element, heating surface area of the feed-through pipe, power of the heating element and volume of the feed-through pipe are taken such that the transfer medium forms the heat accumulator in the container.
摘要:
A vapor compression refrigeration system for providing cold storing which; during a conventional cycle provides cooling to an indoor heat exchanger in the conventional fashion, during a cooling charging cycle refrigeration effect is stored in a heat storage vessel by refrigerant evaporation with the indoor heat exchanger being by-passed and during a discharging cooling cycle refrigerant passes through the heat storage vessel without evaporation and evaporates in the indoor heat exchanger to provide space cooling.
摘要:
A vapor compression refrigeration system for providing cold storing which; during a conventional cycle provides cooling to an indoor heat exchanger in the conventional fashion, during a cooling charging cycle refrigeration effect is stored in a heat storage vessel by refrigerant evaporation with the indoor heat exchanger being by-passed and during a discharging cooling cycle refrigerant passes through the heat storage vessel without evaporation and evaporates in the indoor heat exchanger to provide space cooling.
摘要:
An arrangement for energy transfer between a heat accumulator body and cooling/heating machine (10). The heat accumulator comprises a body (15) of a material having a high heat capacitivity and a high melting point. The body is arranged in heat exchange relation with a cooling/heating machine and arranged for being heated to a temperature considerably higher than the temperature within the accommodation to be served by the machine.
摘要:
A fluid heating and/or cooling system utilizing heat storage, providing continuous heating or cooling from periodic heal inputs or withdrawals, allowing the utilization of waste heat and the reduction of utility peak energy loads through operation of cooling and heating equipment during pre-determined time periods. In a preferred embodiment, liquid heat storage (10) is utilized connected in a circulating loop (60, 70, 75, 15, 65) with a shell and tube heat exchanger (30), pump (50), and temperature sensitive diverter valve (45). Rapid sensing of demand or load changes in the heat exchanger shell provides quick response to said load by increasing the amount of liquid drawn from said storage. Load requirements are satisfied over a wide range of withdrawal while using storage substantially different in temperature than that required by the load without a reduction in pressure of the demand system and subsequent phase change of the load liquid.
摘要:
The invention relates to a device for storing energy using a phase-change material (PCM) comprising an enclosure intended to contain a phase-change material (6) and a thermal heat source comprising a heat-transfer fluid (4) passing through said enclosure and configured to store and extract heat of and from said PCM (6), characterized in that the device comprises an electrical heat source placed in said enclosure and configured to only store heat in said PCM (6). The field of the invention is that of thermal storage systems (TSS) using phase change materials (PCM) and more specifically the integration of a system that allows the availability of stored thermal energy to be optimized. The invention will find an application in urban or rural electrical and heat networks.
摘要:
Die Erfindung betrifft einen Wärmespeicher (S) mit einem Speichermedium (M), einer Übertragungseinrichtung (I,H), mit der Wärme auf das Speichermedium (M) übertragbar ist, sowie eine Entnahmeeinrichtung (R), mit der Wärme aus dem Speichermedium (M) entnommen werden kann. Die Übertragungseinrichtung des Wärmespeichers umfasst eine Induktionsspule (I) sowie ein elektrisch leitfähiges Heizelement (H), das mit dem Speichermedium (M) in direktem Kontakt steht, so dass Wärme zwischen Heizelement (H) und Speichermedium (M) ausgetauscht werden kann.