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Paper Title: A Comparison of heat transfer coefficient of R-12, R-134a and R-409a for condensation based on existing correlation: A Review
Authors Name: Ram Agrawal , Dr. P.K. Jhinge
Unique Id: IJRTI1806041
Published In: Volume 3 Issue 6, June-2018
Abstract: Heat transfer coefficient is reported for condensation and evaporation of R134a and R12 is compared for different conditions found in heat exchanger used for refrigeration and air conditioning. Various existing correlation used to calculate the heat transfer coefficient for single phase and two phase heat transfer. These correlations are previously verified for R12 and for some other refrigerant. Single phase correlation and two phase correlation for evaporation and condensation predict the heat transfer coefficient of R134a is higher than R12.
Keywords: Condensation, Heat transfer coefficient, Refrigerant, R12, R134a, R409a.
Cite Article: "A Comparison of heat transfer coefficient of R-12, R-134a and R-409a for condensation based on existing correlation: A Review", International Journal of Science & Engineering Development Research (, ISSN:2455-2631, Vol.3, Issue 6, page no.216 - 221, June-2018, Available :
Downloads: 000706
Publication Details: Published Paper ID: IJRTI1806041
Registration ID:180297
Published In: Volume 3 Issue 6, June-2018
DOI (Digital Object Identifier):
ISSN Number: 2456 - 3315
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