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Parametric analysis and exergy analysis for a new cogeneration system based on ejector heat pump

  • Harbin institute of technology
  • Ministry of Industry and Information Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, a new cogeneration system is proposed by combining ejector heat pump with organic Rankine cycle, which can output power and domestic hot water simultaneously. The ejector heat pump is used to increase the mass flow rate of the working fluid flowing through the expander, thereby increasing the net power output. The performance of the new cogeneration system is studied by parametric analysis, exergy analysis, and economic analysis. The results show that the net power output is better (6.11%) when the high-temperature evaporation pressure is low and the expander intake pressure is high. There is an optimal condensation pressure that optimizes the investment recovery period. When the new cogeneration system’s net power efficiency and exergy efficiency is better, the economics of the system is difficult to improve.

Original languageEnglish
Title of host publicationProceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019 - Volume II
Subtitle of host publicationHeating, Ventilation, Air Conditioning and Refrigeration System
EditorsZhaojun Wang, Fang Wang, Peng Wang, Chao Shen, Jing Liu, Yingxin Zhu
PublisherSpringer
Pages23-32
Number of pages10
ISBN (Print)9789811395239
DOIs
StatePublished - 2020
Externally publishedYes
Event11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019 - Harbin, China
Duration: 12 Jul 201915 Jul 2019

Publication series

NameEnvironmental Science and Engineering
ISSN (Print)1863-5520
ISSN (Electronic)1863-5539

Conference

Conference11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019
Country/TerritoryChina
CityHarbin
Period12/07/1915/07/19

Keywords

  • Cogeneration
  • Ejector heat pump
  • Parametric analysis

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