published Jun 06, 2013 - 20 pages
Pega Hrnjak presents an overview of the main natural refrigerant alternatives with serious potential to become mainstream options: CO2, ammonia and hydrocarbons. Recap of Carnot cycle and the fact that all refrigerants are equally efficient in Carnot cycle, but start to differ when designers move a away from Carnot for technical reasons. Accrding to Pega Hrnjak, the main issue to the widespread adoption of naturals is the need to overcom the higher initial cost.
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