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ECC Refrigerator: Develop a system model using electrochemical (ECC) compressor and metal hydride (MH) heat exchangers- FY18 2nd Quarter Milestone Report

Technical Report ·
DOI:https://doi.org/10.2172/1471913· OSTI ID:1471913
 [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
This report describes equations for modeling electrochemical compressors and metal hydride heat exchangers. We developed two new component models into the HPDM model library. Two system simulations were conducted, one was a water heating system using LaNi5, and the other was a refrigeration system using V0.85Ti0.1Fe0.05. The simulations demonstrated that COPs of the electrochemical compression systems decreased drastically with increasing the electric current and capacity, due to reduced electrochemical compression efficiency at larger ohm resistance loss. Cyclic loss caused by the metal hydride and heat exchanger mass had a secondary effect on the system efficiency. Elimination of the heat exchanger cyclic loss could enhance the water heating COP of the LaNi5 system by 12% and increase the refrigeration COP of the V0.85Ti0.1Fe0.05 system by 7%.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1471913
Report Number(s):
ORNL/LTR-2018/494
Country of Publication:
United States
Language:
English

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