Experimental parameter studies on a two-phase loop thermosyphon cooling system with R1233zd(E) and R1224yd(Z)

Two-phase loop thermosyphon (TPLT) is a promising technology looking at highly effective electronics cooling. Due to strong coupling between the internal and external parameters, in this study experimental tests steady-state are carried out using R1233zd(E) R1224yd(Z) as working fluid investigate respective influences resulting design requirements. The relationship governing thermal flow equations presented facilitate interpretation of test results. shows stable cooling performance over wide range heat loads recooling temperatures. refrigerant charge identified one main influencing factors, with an optimum being excessive subcooling beginning dry-out. Both tested refrigerants lead basically similar results, showing minor differences regarding system stability.