|| Proposed system works on a closed cycle unlike ongoing system which works on an open cycle. It reduces the requirement of fresh liquid nitrogen in each cycle which seems a problem for process industries. The system works on working principle of pulse tube and cold head. It also increases the efficiency and recycling of the liquid nitrogen. It is in compact size and makes use self-dependent in the matter of generation of liquid nitrogen which can be reused in the process industries like, live ice cream manufacturing.