Response of a 50 kW organic rankine cycle system subject to influence of evaporators

Yuh Ren Lee, Chi Ron Kuo, Chih Hsi Liu, Ben Ran Fu, Chi-Chuan Wang*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


The variations of the evaporator on the system responses of a 50 kWe ORC system using R-245fa are investigated. The effect of exit superheat on the ORC system depends of the types of the evaporator. For the plate evaporator, an exit superheat less than 10 °C may cause ORC system unstable due to liquid entrainment. For maintaining stable operation, the corresponding Jakob number of the plate heat evaporator must be above 0.07. On the other hand, no unstable oscillation of the ORC system is observed for an exit superheat of 0~17 °C when the shell-and-T ube heat exchanger is used as the evaporator.

Original languageEnglish
Pages (from-to)635-638
Number of pages4
JournalEnergy Procedia
StatePublished - 1 Jan 2014
Event6th International Conference on Applied Energy, ICAE 2014 - Taipei, Taiwan
Duration: 30 May 20142 Jun 2014


  • Dynamic response
  • Evaporator
  • Organic Rakine cycle
  • Plate heat exchanger
  • Shell-and-T ube heat exchanger

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