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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 (www.ijrti.org), ISSN:2455-2631, Vol.3, Issue 6, page no.216 - 221, June-2018, Available :http://www.ijrti.org/papers/IJRTI1806041.pdf
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000204757
ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator