Journal
Scientific journal NRU ITMO. Series "Refrigeration and Air Conditioning"
UDK621.564
Issue:3 (16)
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Ozone layer-safe refrigerants
Annotation
Because of their environmental impact an international protocols and thegoals established by Russian Federal Government Decree № 228 designed 14.03.2014 to phase out completely production of the CFCs and HCFCs halogenated compounds are considered. These impending a new urgency in the search for replacement fluids. The new refrigerants should be environment friendly with zero ODP and low GWP. It should also meet many conflicting criteria: a good thermodynamic efficiency and heat transfer properties it should be safe (non-toxic, non-flammable). R22 and another HCFC-refrigerants is now being ruled out because of its alleged adverse effect to the environment. Alternatives must be sought among the HFCs but among these non of the pure compounds can pretend to be substitute to R22 through its whole range of applications. The compounds that might be replaced and the hydrogen-containing compounds are listed. Emerging alternatives to CFCs and HCFCs include newly developed refrigerants, innovative designs and strong federation control. The regulations by RF Government Decree № 228 designed 14.03.2014 issued the implement the Montreal Protocol on Substances that Deplete the Ozone Layer.
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Articles in current issue
- Minichannel heat exchangers in refrigerating equipment
- Ecology and calculation of ventilation underground parking
- To leakage calculation in working part of a screw compressor
- Analysis of a thermal condition of the piston compressor stage
- Comparative assessment of annual energy consumption in the central and decentralized air conditioning systems
- The practical use of a KOMDET-M program for piston compressors structural optimization
- Research flow regimes of two-phase refrigerant flow in horizontal pipes
- Innovative methods to improve efficiency existing types of shell-and-tube devices
- Calculation of a line of elasticity perfluoropropane in MATHCAD
- Mobile broadband dampers for vibration plate structure