abstractUsing mechanical sub-coolin

abstract
Using mechanical sub-cooling systems to increase COP of vapor compression cycles is a
known method in literature to save energy and increase efficiency. Recently, much prog-
ress has been made with respect to investigation into its different aspects that can help to
put it into practice. Numerical and experimental works are considered for the purpose of
highlighting this progress. These can be categorized as: a) simulation of performance
characteristics resulting from different refrigerant combinations in dedicated mechanical
sub-cooling systems, b) variation in performance characteristics for a vapor compression
cycle using integrated mechanical sub-cooling because of fouling, c) experimental study
about consequences of employing a dedicated mechanical subcooling cycle with a simple
vapor compression system, and d) experimental investigation about consequences of
employing a subcooler in a two-stage refrigeration cycle. Some important results are dis-
cussed. Finally, some suggestions are made to provide direction into future research in this
area to help put it into practice.