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On the basis of the "unit consumption analysis" theory, this paper sets up a multi-heat-source and multi-cold-source unit fuel consumption model and a unit cost consumption model for natural gas distributed combined cooling, heat and power system (CCHP) running under two common operation modes. The unit consumption models are utilized in case calculation, the results of which are analyzed and are capable of demonstrating clearly the distribution of the unit fuel consumption accrual of each subsystem (equipment) of the system. The models lay foundations for future energy savings and operation optimization of system equipments.
Date of Conference: 27-31 March 2009