TWO PHASE CFD FLOW ANALYSIS OF R134a AND R1234yf REFRIGERANTS AND ITS EFFECT ON COOLING PERFORMANCE IN AN AUTOMOBILE HVAC EVAPORATOR CORE

Authors

  • Tamilselvan P Student-SMBS, VIT University, Chennai, Tamilnadu, Chennai, India
  • Anand A Samuel Professor-SMBS, VIT University, Chennai, Tamilnadu, Chennai
  • C S Rajamanickam VIT University, Chennai, Tamilnadu, Chennai

DOI:

https://doi.org/10.24297/jac.v13i10.5815

Keywords:

Cyber security and Cyber Technology, Ventilation and Air Conditioning (HVAC) evaporator core. Two-phase fluid, Heating, cooling performance, refrigerant R1234yf, Refrigerant R134a

Abstract

The purpose of this research is to conduct a two-phase fluid analysis and simulation for examining the influence of refrigerant (R134a/R1234yf) properties on cooling performance of an automobile HVAC (Heating, Ventilation and Air Conditioning) evaporator core and compare their performances. In this research, streamline deviation, static pressure, velocity magnitude, pressure co-efficiency, Reynolds number and turbulent kinetic energy play a key role in the comparison of the refrigerants R1234yf and R134a two-phase fluids. Subsequently, it was found that R134a properties were better towards the cooling performance of an automobile HVAC evaporator core. 

Downloads

Download data is not yet available.

References

1. Hrnjak, P., Litch, A.D., 2008. Microchannel heat exchangers for charge minimization in air-cooled ammonia condensers and chillers, International Journal of Refrigeration31, 658-668.
2. Incropera, F.P., DeWitt, D.P., Bergman, T.L., Lavine, A.S., 2006. Fundamentals of Heat and Mass Transfer. John Wiley & Sons, Hoboken, NJ
3. Sanaye and M. Dehghandokht, (2012) “Thermal Modeling of Mini-Channel and Laminated Types Evaporator in Mobile Air Conditioning System”, International Journal of Automotive Engineering, Vol. 2, No. 2
4. Radermacher, R., Yang, B., Hwang, Y., 2007. Integrating Alternative And Conventional Cooling Technologies, ASHRAE Journal, October 2007, 28-35
5. Reasor.P et al (2010), Refrigerant R1234yf Performance Comparison Investigation, International Refrigeration and Air Conditioning Conference.
6. Potkler.G and Hrnjak.S (2012), Effect of Condenser Sub-cooling of the Performance of Vapor Compression Systems: Experimental and Numerical Investigation, International Refrigeration and Air Conditioning Conference.
7. Yohan Lee, Dongsoo Jung, “A brief performance comparison of R1234yf and R134a in a bench tester for automobile applications”, Applied Thermal Engineering 35 (2012) 240-242
8. Gomaa.A (2015), Performance Characteristics of Automotive Air Conditioning System with Refrigerant R134a and its Alternatives, IJEPE, 4(3), 168-177
9. Gaurav and Kumar. R (2015), Environmental Sustainability of Automobile AIR-conditioning System with Refrigerant R1234yf, IJARI, vol 3, issue 4.

Downloads

Published

2017-03-04

How to Cite

P, T., Samuel, A. A., & Rajamanickam, C. S. (2017). TWO PHASE CFD FLOW ANALYSIS OF R134a AND R1234yf REFRIGERANTS AND ITS EFFECT ON COOLING PERFORMANCE IN AN AUTOMOBILE HVAC EVAPORATOR CORE. JOURNAL OF ADVANCES IN CHEMISTRY, 13(10), 5914–5922. https://doi.org/10.24297/jac.v13i10.5815

Issue

Section

Articles