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Steam flow regulation in an absorption chiller

  • US 5,916,251 A
  • Filed: 10/29/1997
  • Issued: 06/29/1999
  • Est. Priority Date: 10/29/1997
  • Status: Expired due to Term
First Claim
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1. A method for regulating energy consumption by a steam-fired absorption chiller comprising:

  • determining a desired energy input;

    measuring an upstream steam pressure upstream of a steam control valve;

    measuring one of a downstream steam pressure downstream of said steam control valve and a steam pressure drop across said steam control valve;

    determining a chiller size and COP of said chiller and a valve size and a valve type of said steam control valve;

    calculating a desired steam control valve position for said steam control valve with an algorithm using said upstream steam pressure, said one of said downstream steam pressure downstream of said steam control valve and said steam pressure drop across said steam control valve, and said chiller size, COP, valve size and valve type; and

    adjusting said steam control valve to said desired steam control valve position.

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