Thermodynamic analysis of micro tri-generation system based on SOFC/MGT/ORC

YOU Huailiang; HAN Jitian; LIU Yang

doi:10.11949/j.issn.0438-1157.20181101

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Thermodynamic analysis of micro tri-generation system based on SOFC/MGT/ORC

更新时间：2025-12-10

- Thermodynamic analysis of micro tri-generation system based on SOFC/MGT/ORC
- CIESC Journal Issue S2, Pages: 300-308(2018)
- 作者机构：
  
  山东大学能源与动力工程学院,山东,济南,250061
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20181101
  CLC： M611
- Online First：31 December 2018，
  
  Published：31 December 2018
- 稿件说明：
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YOU Huailiang, HAN Jitian, LIU Yang. Thermodynamic analysis of micro tri-generation system based on SOFC/MGT/ORC[J]. CIESC Journal, 2018, (S2): 300-308.
DOI：

YOU Huailiang, HAN Jitian, LIU Yang. Thermodynamic analysis of micro tri-generation system based on SOFC/MGT/ORC[J]. CIESC Journal, 2018, (S2): 300-308. DOI： 10.11949/j.issn.0438-1157.20181101.

摘要

提出一种基于SOFC/MGT/ORC的微型冷热电联供系统，首先建立并验证了联供系统数学模型，然后给出设计工况下联供系统的输入参数，重点分析在夏季工况下，燃料流率、燃料利用率、蒸汽碳比、压缩机压比等关键操作参数对系统性能的影响。结果表明，在夏季设计工况下，该联供系统发电效率及?效率分别为69.12%、64.4%，同时系统一次能源利用效率可达92.65%，比冬季设计工况高13.1%。

Abstract

Thermodynamic analysis of a micro tri-generation system comprising of a solid oxide fuel cell (SOFC)

a micro gas turbine (MGT)

an organic Rankine cycle (ORC)

and heat recovery devices for use as combined generation of cooling

heating and power is investigated in this paper. The mathematical model of the tri-generation system is developed and validated

the input parameters of system under the design condition are exhibited. A parametric study is performed to observe the effects of some key parameters such as the fuel flow rate

fuel utilization factor

steam to carbon ratio and compressor pressure ratio on the evaluation criteria of the system and its components. Results show that under the design conditions the system electricity and exergy efficiency are 69.12%

64.4% respectively in summer mode while at the same time the overall efficiency of the system can reach 92.65% which is 13.1% higher than that in winter.

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