International Journal of Recent
Engineering Science

Research Article | Open Access | Download PDF
Volume 2 | Issue 1 | Year 2015 | Article Id. IJRES-V2I1P102 | DOI : https://doi.org/10.14445/23497157/IJRES-V2I1P102

Performance Improvement by Internal Heat Exchanger in R134a Mobile Air Conditioning System

Sachin Velapure, Prof. P. M. Khanwalkar

Citation :

Sachin Velapure, Prof. P. M. Khanwalkar, "Performance Improvement by Internal Heat Exchanger in R134a Mobile Air Conditioning System," International Journal of Recent Engineering Science (IJRES), vol. 2, no. 1, pp. 1-2, 2015. Crossref, https://doi.org/10.14445/23497157/IJRES-V2I1P102

Abstract

The global warming danger requires new technologies to minimize depletion ozone layer. The ozone layer protects earth from various harmful radiations to enter on earth. In Mobile Air Conditioning (MAC) systems the major contributing factor of ozone depletion is refrigerant. The rate of increase of number of automobiles is tremendous every year which cumulatively increase ozone depletion. To improve the Mobile Air Conditioning system performance and reduce the effect on environment, R134 refrigerant with addition of internal heat exchanger and thermal expansion valve can be experimented .Internal heat exchanger is in the form of micro channel tube with heat transfer enhancement characteristics. Moderate and severe Conditions show improvement of 10-12% increase in cooling capacity performance as compared to baseline condition.

Keywords

Internal Heat Exchanger, MAC, R134a, Refrigerent,COP.

References

[1] S. M. Nelson and P.S. Hrnjak, (2002), ‘Improved R134a mobile air conditioning system’, University of IIIinois , 2002, pp. 1-291.
[2] Park Y. C., Mc Enaney, R. Boewe, Yin J.M. Hrnjak (2008), ‘Steady state and cyclic performance of a typical R134a mobile A/c system’, SAE International congress and Expository, 1999, pp. 01-190.