摘要:
An absorption cycle (110) according to the present invention is configured to operate using: a refrigerant having a global warming potential of less than 1000, and including at least one of an HFO-based refrigerant, an HFC-based refrigerant, and an HCFO-based refrigerant; and an absorbing liquid including at least one compound represented by Formulas (1), (2), and (3): R1—(OCH2CH2)n—OR2 (1) R1—(OCH2CH(CH3))n—OR2 (2) R1COO—(OCH2CH2)n—OR2 (3) where R1 and R2 are each independently a hydrogen atom or an alkyl group having a carbon number of 1 or more and 6 or less, and n is an integer of 1 or more and 6 or less.
摘要:
A water treatment system of coupling a heat pump with multi-effect evaporation that comprises a lithium bromide absorption-type heat pump circulation system, a multi-effect evaporation circulation system and a compression-type heat pump circulation system is provided. The vapor in a tail-end evaporator of the multi-effect evaporation circulation system is introduced into a generator in the absorption-type heat pump to release heat and condense. A dilute solution in an absorber of the absorption-type heat pump is introduced into a first-effect evaporator to be evaporated by a treated water, and a condensation heat of the vapor generated by the generator of the absorption-type heat pump is recovered by an evaporator of a compressor heat pump, and another air source evaporator absorbs heat from ambient air to supply heat for the generator by a heat pump condenser.
摘要:
A carbon dioxide/co-fluid mixture is provided for use in a refrigeration cycle in which the carbon dioxide is alternately absorbed and desorbed from the co-fluid. Suitable co-fluids are selected from the class of alkoxylated carboxylic amides, wherein the amides are cyclic or non-cyclic. It has been discovered that N-2,5,8,11-tetraoxadodecyl-2-pyrrolidinone and its homologs exhibit an advantageous property of a high rate of desorption at lower temperatures.
摘要:
A carbon dioxide/co-fluid mixture is provided for use in a refrigeration cycle in which the carbon dioxide is alternately absorbed and desorbed from the co-fluid. Suitable co-fluids are selected from the class of alkoxylated carboxylic amides, wherein the amides are cyclic or non-cyclic. It has been discovered that N-2,5,8,11-tetraoxadodecyl-2-pyrrolidinone and its homologs exhibit an advantageous property of a high rate of desorption at lower temperatures.
摘要:
A heat pump system using waste heat has a compression heat pump circuit that uses the shaft output of a power engine as a power source for a compressor for compressing refrigerant, and an absorption heat pump circuit using waste heat of the power engine as a heat source for a regenerator for heating absorbing liquid, refrigerant vaporized in the compression heat pump circuit is circulated to an absorber of the absorption heat pump circuit, the refrigerant is separated after regenerated by the regenerator, and the separated refrigerant is circulated in the compression heats pump circuit. The absorption heat pump circuit has a reverse pump R in a return pipe for absorbing liquid from the regenerator to the absorber, and the rotation energy of the reverse pump R can be withdrawn by a circulation pump P for the absorbing liquid.
摘要:
An adsorption cell suitable for a thermal wave operated adsorption compressor comprising an elongated solid adsorption material extending along an axis, the elongated solid adsorption material and an elongated heat transfer fluid (HTF) channel in direct heat transferring contact with the outside surface of the solid adsorption material. The adsorption material is formed by a stack of units, i.e. pills of adsorption material. Each pill is accommodated in an associated cup from a heat conductive material. The surface conformity and roughness of the bottom of pill of the unit and of top of the pill of the adjacent unit on the one hand and of the cup bottom wall on the other hand are such that any gap between the abutting bottom and cup bottom wall and the abutting top and cup bottom wall is less than 30 micron, preferably less than 10 micron.
摘要:
A heat pump system (100) comprising a first hydraulic circuit (1) suitable to carry out a heat pump cycle in solution with a first operating fluid which, during part of said cycle, is combined with at least one auxiliary substance so as to form a material system therewith, and a second hydraulic circuit (2) adapted to carry out a compression heat pump cycle with a second operating fluid. The first hydraulic circuit (1) comprises a first treatment device (10) for the material system for separating from the material system at least a fraction of the first operating fluid; a first condenser (11) for at least partially condensing the first operating fluid which has been separated; a first evaporator (13) for at least partially evaporating the first operating fluid which has been condensed, and a second treatment device (14) for the material system for again incorporating in the material system the first operating fluid which has been evaporated. The second hydraulic circuit (2) comprises a second condenser (21) for at least partially condensing the second operating fluid and an evaporator (23) for evaporating the second operating fluid which has been condensed. The second condenser thermally coupled with the first treatment device (10) of the material system for transferring heat released from the second operating fluid at the second condenser (23) to the first treatment device (21) to separate said at least a fraction of the first operating fluid from said material system. A method of cooling and/or heating implementable by means of said heat pump system (100) is also described.
摘要:
In a cogeneration system 1 configured to supply electricity and heat with a gas engine 5 as an engine and including a thermally driven heat pump 3 and a thermally-driven-heat-pump assisted electric heat pump 4 as an electrically driven heat pump, a controller 44 as an operation controller configured to perform a power control in such a manner that generated electricity e of the gas engine 5 becomes equal to balance electricity eb as the sum of required electricity De2 for driving a thermally-driven-heat-pump assisted electrically driven heat pump 4 configured to compensate heat demand Dh of the cogeneration system 1 and electricity demand De1 of the cogeneration system 1, is provided.
摘要:
The present invention envisages a hybrid absorption-compression chiller comprising: a vapor-compression system providing refrigeration effect in a primary evaporator (102a) by extracting heat from a medium to be cooled in a condensed primary refrigerant, and a vapor-absorption system in operative communication with the vapor-compression system for receiving primary refrigerant vapors via a compressor (104a), these vapors are cooled by a condensed secondary refrigerant in a secondary evaporator (106a) to provide cold condensed primary refrigerant which is recycled to the vapor-compression system. The hybrid absorption-compression chiller of the present invention is energy-efficient and provides a higher COP in comparison with the conventional chillers.
摘要:
A dehumidifier for a compressor, including: a plurality of dehumidifying members that absorb moisture; and a flow passage controlling valve module that enables a low-temperature vapor refrigerant to alternately flow into the plurality of dehumidifying members and enables the low-temperature refrigerant to flow into a compressor in a state where moisture contained in the low-temperature refrigerant is absorbed and is removed, enables a high-temperature vapor refrigerant ejected from the compressor to alternately flow into the dehumidifying members and regenerates the dehumidifying members. Thus, since a liquid-state absorbent contained in a refrigerant flowing into the compressor is removed by the dehumidifier, damage caused by liquid compression and corrosion of the compressor can be reduced. In addition, the structure of the dehumidifier is simple, and an additional external heating source is not required.