Protocolul de la Montreal privind protecţia stratului de ozon interzice CFC-urile şi HCFC-urile, iar protocolul de la Kyoto vizează reducerea încălzirii globale şi stabileşte angajamente privind reducerea gazelor cu efect de seră.
The importance of refrigeration to meet the global requirements of the food chain, health care sectors or even the automotive industry has never been so great.
A compression refrigerator produces cooling at constant pressure by evaporation of a refrigerant in the liquid state, followed by compression and condensation of the fluid to transform it from vapour to the liquid state. It uses a compressor which in most cases must be lubricated.