closed cycle air refrigeration

                                                        CCAR 
CCAR is stands for closed -cycle air refrigeration , it is a new technology in refrigeration .thiss system is uses
dry , high pressure air as the working fluid  and configure as a closed system  to avoid  the need  for continous moisture removal for make up air .
    A u.s patent  for the basic  CCAR technology was issued in 1996.