Abstract
Present scenario global warming is a major concern worldwide, due to the continuous increment of CO2 level in the environment. The power plants, chemicals, manufacturing industries, and automobiles applications are the major cause for the same. Nowadays, various protocols and norms have been in the implementation stage to either reduce the CO2 level or to capture the CO2 produced during the process. In this chapter, one of the utilization of captured CO2 has been explored as a natural refrigerant, which has favourable thermophysical properties and having the lowest global warming potential (GWP). Many research is going on worldwide for different application in the HVAC sector, like automobile air conditioning, supermarket, cold chain, industrial application, etc. The cold chain is one of the major sectors where the use of CO2 as refrigerant can be appreciated, especially for the referred vehicles and cold storage for NH3 charge reduction. This chapter summarizes the recent development of the CO2 refrigeration system based on the available literature, for the supermarket and cold chain applications followed by advantages of CO2 as refrigerant, its technical challenges, and opportunities over the existing systems.
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Abbreviations
- COP:
-
Coefficient of Performance
- DX:
-
Direct Expansion
- D-X:
-
Direct Expansion
- GC:
-
Gas Cooler
- GWP:
-
Global Warming Potential
- HP:
-
High Pressure
- HVAC:
-
Heating, Cooling and Ventilation
- LT:
-
Low temperature
- MT:
-
Medium temperature
- NCCD:
-
National Centre for Cold-chain Development
- NH3:
-
Ammonia
- ODP:
-
Ozone Depletion Potential
- UNEP:
-
United Nations Environment Programme
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Pal, M.L., Yadav, A.K., Gupta, D.K. (2021). Application CO2 as Refrigerant for HVAC, Supermarket, and Cold Chain—A Review. In: Goel, M., Satyanarayana, T., Sudhakar, M., Agrawal, D.P. (eds) Climate Change and Green Chemistry of CO2 Sequestration. Green Energy and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-16-0029-6_11
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