First and Second Law Analysis of Scraped Surface Ice Slurry Generator

摘要

The present study reports the experimental comparison ofantifreezes Propylene Glycol (PG) and Mono Ethylene Glycol (MEG)at different concentrations in a scraped surface ice slurry generator.The aqueous solution of Antifreezes, (PG) and (MEG) with water atdifferent weight percentages 10%, 20%, 30% and 35% of Antifreezesand 90%, 80%, 70% and 65% of water respectively were subjected tothe freezing process. The results show that at different concentrationsof antifreezes (PG and MEG), total energy balance is same. It isobserved that COPcarnot reduces with increase in concentrations ofantifreezes (PG and MEG), COPcarnot is higher using PG ascomparison to MEG. It is also observed that work carnot increaseswith increase in concentrations of antifreezes (PG and MEG), workcarnot is slightly higher using MEG as comparison to PG. Actualcompressor power requirement increases with increase inconcentrations of antifreezes (PG and MEG), actual compressorpower requirement is slightly higher using MEG as comparison toPG.