Journal
CSEE JOURNAL OF POWER AND ENERGY SYSTEMS
Volume 4, Issue 2, Pages 257-262Publisher
CHINA ELECTRIC POWER RESEARCH INST
DOI: 10.17775/CSEEJPES.2015.01260
Keywords
Cascade utilization of energy; distributed energy; waste heat absorption heat transformer; waste heat power and cooling cogeneration
Funding
- National Basic Research Program of China [2014CB249202]
- International Science & Technology Cooperation Program of China [S2014GR03880]
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New trigeneration system consists of an internal combustion engine, a power and cooling cogeneration system and an absorption heat transformer system. The exhaust gas is recovered by the power and cooling cogeneration subsystem producing the cooling and power. The jacket water is recovered by the absorption heat transformer subsystem producing lowpressure steam. The exergy performance and the energy saving performance which is evaluated by the primary energy saving ratio of the new distributed energy system are analyzed. The effects of the ratio of the output power and cooling of the power and cooling cogeneration subsystem and the generator outlet temperature of the absorption heat transformer subsystem to the primary energy saving ratio are considered. The contributions of the subsystems to the primary energy saving ratio are quantified. The maximum primary energy saving ratio of the new distributed energy system is 15.8%, which is 3.9 percentage points higher than that of the conventional distributed energy system due to the cascade utilization of the waste heat from the internal combustion engine.
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