Abstract:
The invention is directed to energy storage and supply system (1.00) comprising a combination of a heat pump (HP) (2) and a thermochemical storage (TCS) (1) unit, adapted for storing and supplying energy. In a further aspect, the invention is directed to a method for operating the energy storage and supply system (1.00), wherein said method comprises charging and discharging phases which both comprise providing a HP warm stream by the HP and leading said HP warm stream to the TCS unit to respectively thermally charge and discharge said TCS unit.
Abstract:
The circulating hot water circuit of the absorption refrigerating machine (3) is connected to a combustion heat source which heats the water in the heat distribution system (9). Heat from the cooling water, by which heat is carried off from the absorption refrigerating machine (3), is pumped by a heat pump (4) into the return branch of the heat distribution system (9). The heat pump (4) outlet is connected to the return branch of the heat distribution system (9), preferably through a heat exchanger (6). The combustion heat source may be a boiler (1) and/or a cogeneration unit (2), preferably both driven by natural gas. To increase efficiency, the system may include an accumulator tank (5), a solar panel (7) and a photovoltaic panel (8). The control unit (11) controls individual elements and devices of the system, controls circulating pumps (12), three-way valves (10) and can evaluate the system status according to data from connected temperature and flow rate sensors.
Abstract:
The invention is based on the idea of using an absorption type chiller unit for pre-chilling a liquid input to a compressor driven chiller unit in a cooling system of a marine vessel. Absorption type chiller units need input energy in form of thermal energy and there is a lot of excess thermal energy available in this environment. A method, system and use of an absorption type chiller unit are claimed.
Abstract:
The method combines different electrolyte solutions having the same solvent. The solution is successively compressed and vaporized at different temperatures and the vapor is successively absorbed by the second solution that exhibits higher negative deviation, at higher temperature. The absorption heat of each absorber is recovered by the next evaporator. The more evaporator-absorber pairs that are used the higher the temperature lift or the created pressure ratio. Finally the vapor returns to the first solution at high temperature. Electrolyte is dissolved and rejected from each solution to achieve total heat recovering and the very high efficiency of the cycle. Gas absorption is suggested instead of solvent vapor.
Abstract:
Das erfindungsgemäße Kühlsystem umfasst eine Kälteanlage, gekoppelt mit einer Hochtemperaturwärmepumpe. Dies ermöglicht die Kälteanlage bei herkömmlichen Temperaturen bezüglich Verdampfungs- und Kondensationstemperatur zu betreiben, da die Hochtemperaturwärmepumpe den Temperaturhub gegenüber der Umgebungstemperatur übernimmt. Ein derartiges Kühlsystem oder ein Kühlprozess, der dieses nutzt, kann vorteilhafterweise für die Vorkühlung von Turbineneingangsluft in Hochtemperaturumgebungen genutzt werden. Vorzugsweise werden dabei Hochtemperaturkältemittel eingesetzt.