Devices with hybrid vapour compression-adsorption cycle and method for implementation thereof
AssigneeBry-Air [Asia] Pvt. Ltd.
InventorsBidyut Baran Saha, Kyaw Thu, Deepak Pahwa, Rajan Sachdev, Kuldeep Singh Malik
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Abstract
The present invention provides a device with a combined hybrid mechanical vapour compression-adsorption cycle, particularly to devices used in moisture or temperature control applications which incorporate or embody refrigeration or heat pump cycles, such as for example HVAC applications. In this invention, heat from the adsorption process and/or condensation process of the adsorption cycle is pumped to the desorption process. Thus, this new hybrid combined cycle becomes a partially or fully electricity driven heat pump cycle.
Claims43
A device with a refrigeration or heat pump cycle comprising a combination of a mechanical vapour compression cycle section and an adsorption cycle section, the device further comprising:
- an adsorption cycle section including two or more adsorption/desorption beds connected for passage there-through of a first working fluid capable of being adsorbed and/or desorbed in said two or more adsorption/desorption beds, said adsorption/desorption beds being connected for passage of said first working fluid to an evaporator and to a condenser through one or more dedicated direction altering valves operable in an alternating manner to provide an adsorption/desorption heat transferring cycle;
- a mechanical vapour compression cycle section including a mechanical vapour compressor configured to compress a second working fluid which is a mechanical vapour compression (“MVC”) refrigerant, and connected to an opposite heat exchanger side of the said two or more adsorption/desorption beds, which alternatively act as a condenser and evaporator of the mechanical vapour compression cycle section, the condenser providing regeneration heat to the desorber bed of the adsorption cycle section, and the evaporator providing cooling to the adsorber bed of the adsorption cycle section,
- wherein the mechanical vapour compression cycle section provides useful heat for desorption and/or cooling for adsorption in the adsorption cycle section.
A method for heat pump operation in a device with a refrigeration or heat pump cycle comprising a combination of a mechanical vapour compression cycle and an adsorption cycle, the method comprising:
- passing a first working fluid capable of being adsorbed and/or desorbed in said
- through two or more adsorption/desorption beds,
- said adsorption/desorption beds being connected for passage of said first working fluid to an evaporator and to a condenser through one or more dedicated direction altering valves operable in an alternating manner to provide an adsorption/desorption heat transferring cycle;
- mechanically compressing a second working fluid which is a mechanical vapour compression (“MVC”) refrigerant, and passing the MVC refrigerant to an opposite heat exchanger side of the said two or more adsorption/desorption beds, which alternatively act as a condenser and evaporator of the mechanical vapour compression cycle, the condenser providing regeneration heat to the desorber bed of the adsorption cycle, and the evaporator providing cooling to the adsorber bed of the adsorption cycle,
- wherein the heat pump cycle provides the useful heat (adsorption and desorption heat) effect for the adsorption cycle,
- the method comprising employing the mechanical vapour compression means to pump heat in the process to the sorption processes to regenerate the adsorbent therein, thereby providing an enhanced performance.
Dependencies are inferred from the claim text.