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Cogeneration system

  • US 5,751,604 A
  • Filed: 01/26/1993
  • Issued: 05/12/1998
  • Est. Priority Date: 02/03/1992
  • Status: Expired due to Term
First Claim
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1. A cogeneration system including a generator driven by a heat engine, an external electric power load connected to said generator, and a heat load whose heat source is, waste heat generated from said heat engine, comprising:

  • detecting means for detecting a load value of said external electric power load;

    heat generating means powered by said generator for generating heat and supplying the generated heat to said heat load; and

    controlling means for controlling said heat generating means according to the load value of said external electric power load detected by said detecting means,said controlling means comprisingstoring means for storing information indicating a relation between a load value of said generator and a heat quantity recovered by said heat load from said heat engine, andcalculating means for calculating electric power to be consumed by said heat generating means based on the relation stored in said storing means, so that the sum of heat quantities recovered by said heat load from waste heat of said heat engine and from generated heat of said heat generating means is a predetermined value, in response to said external electric power load being a small load value and a heat quantity recovered by said heat load from said heat engine being less than the predetermined value.

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