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http://dx.doi.org/10.5293/kfma.2016.19.6.026

Performance Analysis on CHP Plant using Back Pressure Turbine according to Return Temperature Variation  

Im, Shin Young (Korea District Heating Corp. R&D Institute)
Lee, Jong Jun (Korea District Heating Corp. R&D Institute)
Jeon, Young-Shin (Korea District Heating Corp. R&D Institute)
Kim, Hyung-Taek (Ajou university, Division of Energy Systems Research)
Publication Information
The KSFM Journal of Fluid Machinery / v.19, no.6, 2016 , pp. 26-33 More about this Journal
Abstract
Combined heat and power (CHP) system is one of the power generation system which can generate both electricity and heat. Generally, mid-size and big-size CHP plant in Korea generate electricity from gas turbine and steam turbine, then supply heat from exhaust gas. Actually, CHP can supply heat using district heater which is located at low pressure turbine exit or inlet. When the district heater locates after low pressure turbine, which called back pressure type turbine, there need neither condenser nor mode change operating control logic. When the district heater locates in front of low pressure turbine or uses low pressure turbine extraction steam flow, which calls condensing type turbine, which kind of turbine requires condenser. In this case, mode change operation methods are used for generating maximum electricity or maximum heat according to demanding the seasonal electricity and heat.
Keywords
Back Pressure Turbine; Combined Heat and Power; District Heat; Return Temperature;
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