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Agrawal, Alka Bani
- Replacing Harmful Refrigerant R22 in a Bulk Milk Cooler
Abstract Views :385 |
PDF Views:87
Authors
Affiliations
1 Dept of Mech Engg., Univ. Instt. of Tech.,RGPV, Bhopal, IN
1 Dept of Mech Engg., Univ. Instt. of Tech.,RGPV, Bhopal, IN
Source
Indian Journal of Science and Technology, Vol 2, No 9 (2009), Pagination: 51-58Abstract
Many milk coolers are presently using refrigerant R22 which has substantial ozone depleting potential along with high global warming potential. As per the commitment of Montreal and Kyoto protocol, R22 is required to be replaced by a suitable eco-friendly refrigerant and this paper explores the various options available. First the performance of 13 eco-friendly refrigerants was compared by simulating their performance with the help of CYCLE D. Then detailed study of binary and ternary mixture refrigerants has been done for selecting a Retrofit mixture for use in place of R22 in the existing milk cooler. Elucidating the performance,ODP and GWP values of refrigerants, it is clear that R1270 is best choice for replacing R22 with zero ODP and negligible GWP. Out of four mixtures, R32/R152 is best with zero ODP and low GWP.Keywords
Refrigerant, CFC22, Retrofitting, Milk CoolerFull Text
References
- Agarwal Alka and Dave RK (1999) Alternatives to CFC: a discussion of options. In: 20th Intl. Conf. Refrigeration, Sept. 19-24, Sydney, Australia.
- Agrawal RS (2001) Impact of Montreal Protocol on refrigeration and air conditioning industry. In: Proc, Intl. Conf. on Emerging Technol. in Air - Conditioning & Refrigeration, New Delhi, India, Sept 26-28. pp:13-25.
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- Pasek AD, Suwono A and Tandian HM (1999) Indonesian experience in retrofitting some milk coolers. In: Proc. Seminar on ODS phase out-Bali. Indonesia, May 5-7. pp: 124-134.
- Singhal Kapil (2008) The R12 and R22 phase out in India: preparing for critical changes in the refrigerant landscape. Air-conditioning & Refrigeration J. 11 (4), 103-106.
- Retrofitting of Vapour Compression Refrigeration Trainer by an Eco-friendly Refrigerant
Abstract Views :470 |
PDF Views:162
Authors
Affiliations
1 Department of Mechanical Engineering, University Institute of Technology, RGPV, Bhopal-462024, IN
1 Department of Mechanical Engineering, University Institute of Technology, RGPV, Bhopal-462024, IN
Source
Indian Journal of Science and Technology, Vol 3, No 4 (2010), Pagination: 455-458Abstract
After years of successful deliberations for tackling the grievous problem of ozone depletion, the United Nation's environmental protection agency concluded multinational agreement called 'Montreal Protocol' for controlling the use of gases threatening the ozone layer. The successful implementation of the 'Montreal Protocol' in developed countries is being appreciated for its significant reduction in emission level of ozone depleting substances Now it is the turn of developing countries to fulfill their obligation of Montreal Protocol. The dead line for complying with the phase out of chloroflurocarbon in developing countries like India is 2010. The refrigeration industry has accepted the challenge of chloroflurocarbons phase out and new eco-friendly refrigerant like hydroflurocarbons and hydrocarbons are replacing chloroflurocarbons in all commercial and industrial application. Vapour compression refrigeration trainer is an important equipment of thermal engineering lab of mechanical engineering department which operated using chlorofluorocarbon 12. CFC12 is the most important member of CFC refrigerants which are being targeted for phase out in India by 2010. In this paper, performance valuation of many eco-friendly hydrocarbon refrigerants for replacing CFC12 in the trainer has been done and a suitable drop in alternative refrigerant for retrofitting has been identified.Keywords
Ozone Depletion, Montreal Protocol, Eco-friendly Refrigerant, Hydrocarbon Refrigerant, RetrofittingFull Text
References
- Agrawal RS (2001) Montreal protocol on refrigeration and air conditioning industry. Proc. of Int. conf. on emerging technologies in air-conditioning and refrigeration, New Delhi, India, Sept 26-28. pp13-25.
- Arora CP (2000) A text book on refrigeration and air-conditioning, Ch 4 refrigerants, Tata Mcgraw Hill,New Delhi)
- CARE products (2009) http://www.careproducts.
- INFRAS (2000) National CFC consumptions phase out plan for India focusing on refrigeration service sector.
- Kapil S (2008) The R12 and R22 phase out in India: Preparing for critical changes in the refrigerant landscape. Air-conditioning refrig. J. 11(4), 103-106.
- Othmar S and Adrian S (1998) Technology transfer and policy barriers in commercial refrigeration and air-conditioning. Proc. of IIR conf. on emerging trends in air-conditioning and refrigeration. New Delhi, India, 18-20 March, pp399-416.