Regeneration system for a metal hydride heat pump of a damper type

A regeneration system for a metal hydride heat pump of a damper type, said system comprising:

• a plurality of reactor assembly modules including a first metal hydride reactor assembly module, a second metal hydride reactor assembly module, a third metal hydride reactor assembly module and a fourth metal hydride reactor assembly module;
• said first metal hydride reactor assembly module having a regeneration alloy and said second metal hydride reactor assembly module having a refrigeration alloy, said first metal hydride reactor assembly module coupled to said second metal hydride reactor assembly module for exchange of hydrogen;
• said third metal hydride reactor assembly module having a regeneration alloy and said fourth metal hydride reactor assembly module having a refrigeration alloy, said third metal hydride reactor assembly module coupled to said fourth metal hydride reactor assembly module for exchange of hydrogen;
• an ambient air inlet adapted to receive an ambient air stream into a housing to be fed to at least one of said first and said third metal hydride reactor assemblies;
• a fluid recirculation circuit configured to recirculate an exhaust stream as received from one of said metal hydride reactor assembly modules, said fluid recirculation circuit comprises:
• a mixer adapted to mix a portion of said recirculation stream and said exhaust stream to provide a resultant stream having a temperature, intermediate of the temperature of said exhaust stream and the temperature of said recirculation stream;
• a fluid flow switching circuit including at least one valve coupled to said mixer and adapted to switch flow of said resultant stream as received from said mixer and said ambient air stream in a cyclic manner in a series of half-cycles of operation wherein in one half cycle of operation, said resultant stream is fed to said third metal hydride reactor assembly module and said ambient air stream is fed to said fourth metal hydride reactor assembly module and in a subsequent half-cycle of operation, said resultant stream is fed to said first metal hydride reactor assembly module and said ambient air stream is fed to said second metal hydride reactor assembly module;
• a flow regulator including a fan provided downstream of said metal hydride reactor assembly modules;
• and
• an exhaust outlet for leading away a portion of said recirculation stream from said housing.