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Paper Information

Journal:   INTERNATIONAL JOURNAL OF ENERGY AND ENVIRONMENTAL ENGINEERING   2016 , Volume 7 , Number 2; Page(s) 167 To 176.
 
Paper: 

EVALUATION OF AN ENERGY- AND EXERGY-BASED GENERIC MODELING APPROACH OF COMBINED HEAT AND POWER PLANTS

 
 
Author(s):  MOLLENHAUER EIKE*, CHRISTIDIS ANDREAS, TSATSARONIS GEORGE
 
* INSTITUTE FOR ENERGY ENGINEERING, TECHNISCHE UNIVERSITAT,BERLIN, GERMANY
 
Abstract: 

Reduced models of combined heat and power plants are required for different applications. Among other usages, they are implemented as mixed integer linear programs (MILP) in energy market models or price-based unit commitment problems to study the economic feasibility and optimal operation strategies of different units. Generic models are particularly useful when limited information is available for each considered plant. This paper presents a MILP modeling approach for combined heat and power (CHP) plants. The approach is based on energy and exergy balances and a few typical plant characteristics for different operating conditions. The reduction of electrical power output due to heat extraction is estimated by the transferred exergy to the district heating network. Furthermore, the accuracy, strengths and limitations of this approach are investigated for various CHP plant types with extraction condensing turbines designed for district heating systems. Therefore, detailed thermodynamic cycle simulations of CHP plants including part load operations are used to obtain the real plant operating conditions to compare them to the results of the described generic approach. The validation of the reduced, generic model shows that the accuracy mainly depends on the effectiveness of the heat extraction from the CHP plant. In addition, it can be seen that the main advantage of the presented exergy-based method is the inherent consideration of the feed flow temperature for the calculation of the power reduction due to heat extraction.

 
Keyword(s): CHP COMBINED HEAT AND POWER, COGENERATION, MILP MIXED INTEGER LINEAR PROGRAMS, DISTRICT HEATING, EXTRACTION CONDENSING TURBINE, THERMODYNAMIC SIMULATION, EXERGY, UNIT COMMITMENT
 
 
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APA: Copy

MOLLENHAUER, E., & CHRISTIDIS, A., & TSATSARONIS, G. (2016). EVALUATION OF AN ENERGY- AND EXERGY-BASED GENERIC MODELING APPROACH OF COMBINED HEAT AND POWER PLANTS. INTERNATIONAL JOURNAL OF ENERGY AND ENVIRONMENTAL ENGINEERING, 7(2), 167-176. https://www.sid.ir/en/journal/ViewPaper.aspx?id=511434



Vancouver: Copy

MOLLENHAUER EIKE, CHRISTIDIS ANDREAS, TSATSARONIS GEORGE. EVALUATION OF AN ENERGY- AND EXERGY-BASED GENERIC MODELING APPROACH OF COMBINED HEAT AND POWER PLANTS. INTERNATIONAL JOURNAL OF ENERGY AND ENVIRONMENTAL ENGINEERING. 2016 [cited 2021August05];7(2):167-176. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=511434



IEEE: Copy

MOLLENHAUER, E., CHRISTIDIS, A., TSATSARONIS, G., 2016. EVALUATION OF AN ENERGY- AND EXERGY-BASED GENERIC MODELING APPROACH OF COMBINED HEAT AND POWER PLANTS. INTERNATIONAL JOURNAL OF ENERGY AND ENVIRONMENTAL ENGINEERING, [online] 7(2), pp.167-176. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=511434.



 
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