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Method and apparatus for controlling a combined heat and power fuel cell system

  • US 20040096713A1
  • Filed: 11/14/2003
  • Published: 05/20/2004
  • Est. Priority Date: 05/31/2001
  • Status: Abandoned Application
First Claim
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1. A fuel cell system, comprising:

  • a fuel cell, a fuel supply, an oxidant supply, a power demand sensor, a heat demand sensor, and a controller;

    wherein the fuel cell is adapted to receive a fuel flow from the fuel supply, and an oxidant flow from the oxidant supply;

    wherein the controller is connected to each of the fuel supply, oxidant supply, power demand sensor, and heat demand sensor, and wherein the controller is further adapted to receive a power demand signal from the power demand sensor and a heat demand signal from the heat demand sensor;

    wherein the controller is adapted to reduce at least one of the fuel flow and oxidant flow when there is no heat demand signal and no power demand signal;

    wherein the controller is adapted to increase at least one of the fuel flow and oxidant flow when there is no heat demand signal and there is a power demand signal;

    wherein the controller is adapted to increase at least one of the fuel flow and oxidant flow when there is no power demand signal and there is a heat demand signal; and

    wherein the controller is adapted to increase at least one of the fuel flow and oxidant flow when there is a power demand and a heat demand signal.

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