Heat Transfer Evaluation of HFC-236EA and CFC-114 in Condensation and Evaporation

Abstract

The report gives results of a heat transfer evaluation of the refrigerants hexafluoropropane and 1,1,2,2-dichloro-tetrafluoroethane. This research focuses on comparing refrigerants not only in condensation and pool boiling, but also with various tube surfaces. The test facility used in this study was initially used for spray evaporation testing; however, it was redesigned and modified for use with condensation, pool boiling, or spray evaporation testing. During pool boiling or spray evaporation, the test facility was capable of testing pure refrigerants or refrigerant/lubricant mixtures. The test facility is described in detail in the full report. The tow refrigerants produced similar performance characteristics in condensing vapor on integral-fin tubes so that the transition to HFC-236ea should be accomplished without major modifications to existing condensers.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1996
Accession Number
ADA349231

Entities

People

  • M. B. Pate
  • W. W. Huesbach

Organizations

  • Iowa State University

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Climate Change
  • Data Acquisition
  • Energy
  • Energy Transfer
  • Environment
  • Environmental Protection
  • Evaporation
  • Fluid Flow
  • Fluids
  • Heat Energy
  • Heat Transfer
  • Latent Heat
  • Measurement
  • Test Facilities
  • Transitions
  • Turbulent Mixing

Fields of Study

  • Engineering

Readers

  • Aerospace Test and Evaluation
  • Combustion and Flow Dynamics.