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Integrated micro combined heat and power system

  • US 20040083732A1
  • Filed: 08/18/2003
  • Published: 05/06/2004
  • Est. Priority Date: 08/10/2001
  • Status: Abandoned Application
First Claim
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1. An indirectly-heated micro combined heat and power system comprising:

  • a heat source;

    an interloop heat exchanger in thermal communication with said heat source;

    a first fluid-circulating loop with at least a portion thereof passing through a first channel of said interloop heat exchanger, said first fluid-circulating loop comprising;

    an organic working fluid;

    a scroll expander;

    a generator operatively responsive to said scroll expander to generate electricity;

    a condenser in fluid communication with said scroll expander, said condenser adapted to establish a heat exchange relationship between said organic working fluid and an external heat exchange fluid for space heating within a dwelling; and

    a pump for the circulation of said organic working fluid; and

    a second fluid circulating loop with at least a portion thereof passing through a second channel of said interloop heat exchanger such that said second fluid circulating loop is in thermal communication with said first loop, said second fluid circulating loop comprising;

    a first sub-loop comprising;

    piping to circulate a heat exchange fluid disposed in said second fluid-circulating loop, at least a portion of said piping in thermal communication with said heat source;

    a domestic hot water heat exchanger; and

    at least one pump to circulate a portion of said heat exchange fluid through said domestic hot water heat exchanger;

    a second sub-loop comprising;

    piping to circulate said heat exchange fluid such that it is in heat exchange relationship with said organic working fluid in said interloop heat exchanger;

    at least one pump to circulate a portion of said heat exchange fluid through said interloop heat exchanger,  

    wherein said heat source, said heat exchanger, said first loop and said scroll expander are configured such that, upon application of heat from said heat source to said organic working fluid via said interloop heat exchanger, said organic working fluid becomes superheated to an extent that said organic working fluid remains superheated at least through said scroll expander.

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