Experimental investigation of cryogenic loop heat pipe

This paper is aimed at development and experimental investigation of operational characteristics of a cryogenic loop heat pipe. The experimental studies include different cases such as thermal behaviors of the CLHP corresponding to the start-up, frequent shut-down and start-up re-start, and the environmental parasitic heat. The experiments show that the developed CLHP stably starts from a supercritical condition. The CLHP shows its fine performances of the operation. The secondary pump loop has the ability to manage the environmental parasitic heat and facilitate an easy start-up when the CLHP operated in a supercritical condition.