Corpus ID: 110597359

INVESTIGATING THE APPLICATION OF ENVIRONMENTALLY FRIENDLY SOLUTIONS IN REFRIGERATION APPLICATIONS OF UGANDA

@inproceedings{Makumbi2013INVESTIGATINGTA,
  title={INVESTIGATING THE APPLICATION OF ENVIRONMENTALLY FRIENDLY SOLUTIONS IN REFRIGERATION APPLICATIONS OF UGANDA},
  author={T. Makumbi},
  year={2013}
}
The earliest refrigerants used were R40, R764, R717, R290 and R600a but these had drawbacks of flammability, toxicity, unpleasant smell as well as a challenge of leakage through the shaft seals of compressors. In 1931, these were replaced by CFCs and HCFCs due to safety and reliabilty concerns. However in 1986, CFCs and HCFCs were confirmed to have an ozone depleting effect and their use discouraged under the Montreal Protocol. Manufacturers responded to this call by introducing HFCs with no… Expand
Mathematical Modelling of Active Magnetic Regenerator Refrigeration System for Design Considerations
A magnetic refrigeration system has the potential to alternate the compression system with respect to environmental compatibility. Refrigeration systems currently operate on the basis of theExpand

References

SHOWING 1-10 OF 47 REFERENCES
ICR0021 CARBON DIOXIDE - NEW USES FOR AN OLD REFRIGERANT
Carbon dioxide has been used as a refrigerant in vapour compression systems of many typ es for over 130 years, but it is only in the last decade that inventive minds and modern techniques have foundExpand
Efficiencies of transcritical CO2 cycles with and without an expansion turbine
With the discovery that fluorocarbons may have a profoundly detrimental effect on the earth's atmosphere, it has become necessary to find a suitable replacement for a fluorocarbon-based refrigerationExpand
Optimization of a CO2–C3H8 cascade system for refrigeration and heating
Conventional working fluids (refrigerants) are being phased out worldwide to combat with the twin menace of ozone layer depletion and global warming and natural refrigerants are fast gaining favourExpand
Theoretical analysis of a CO2–NH3 cascade refrigeration system for cooling applications at low temperatures
Abstract As a result of environmental problems related to global warming and depletion of the ozone layer caused by the use of synthetic refrigerants (CFC’s, HCFC’s and HFC’s) experienced over theExpand
Sustainability with prospective refrigerants
SUMMARY This paper first presents a brief historical summary of the recent past and current status of refrigerants, and then proceeds to suggest a simple Second Law-based approach using the idealExpand
A simulation study of performance evaluation of single-stage absorption refrigeration system using conventional working fluids and alternatives
This study presents a literature review, especially in recent years, on the absorption refrigeration systems (ARSs), the currently used refrigerant-absorbent pairs and their alternatives.Expand
Comparison of a R744 cascade refrigeration system with R404A and R22 conventional systems for supermarkets
Abstract The present article focuses on the energy efficiency and climate performance of three different systems used in supermarket applications. The refrigeration systems consist of a cascade cycleExpand
Refrigeration with ammonia
Ammonia is widely used as a refrigerant in industrial systems for food refrigeration, distribution warehousing and process cooling. It has more recently been proposed for use in applications such asExpand
Exergy analysis of transcritical carbon dioxide refrigeration cycle with an expander
In this paper, a comparative study is performed for the transcritical carbon dioxide refrigeration cycles with a throttling valve and with an expander, based on the first and second laws ofExpand
Hydrocarbons as refrigerants in small heat pump and refrigeration systems – A review
Due to the concern for the effects of the release of HFC refrigerants on the global environment caused by the high global warming potential of these substances, there is a large interest in Europe ...
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