Manufacture of a biporous nickel wick and its effect on LHP heat transfer performance enhancement

Characterisation of a grooved heat pipe with an anodised surface

“…Li et al [16] tested an MHP by incorporating a compound structure of sintered wick on a grooved structure as the capillary material. From the studies [8][9][10][11][12][13][14][15][16], it is understood that the new kind of wick structures exhibited a significant effect on the heat transfer enhancement of heat pipes over the same with traditional wick structures. Although different wick structures are available for better heat transfer, the base materials of wick structures are mostly copperbased materials, which are slightly heavier than lightweight materials such as aluminium.…”

“…Lin et al [14] tested an LHP with a bi-disperse wick structure and studied the effect of pore size on heat transfer. Wu et al [15] developed and tested an LHP with a biporous wick structure and studied the heat transfer enhancement. Li et al [16] tested an MHP by incorporating a compound structure of sintered wick on a grooved structure as the capillary material.…”

Investigating the effect of powder-mixing parameter in biporous wick manufacturing on enhancement of loop heat pipe performance

“…Yeh et al [5,6] first listed the manufacturing process of the biporous wick, using Na 2 CO 3 particles to form the large pores; they changed the Na 2 CO 3 particle diameter and content, immersing the sintered wick in water to dissolve the Na 2 CO 3 particles to form large pores; after testing, the particle diameter and content was found to directly effect the performance of the LHP, yet this method still presents limitations on maximizing the diameter and content of large pores. Wu et al [7] investigated the manufacturing process of biporous wick in LHP; PMMA was first used for wick manufacturing as sacrificial layer for large pore formations. After sintering, performance testing indicated that, compared with using monoporous wick, heat transfer performance was enhanced by 50%.…”

Numerical simulation of heat and mass transfer in bidispersed capillary structures: Application to the evaporator of a loop heat pipe

“…According to [24,33,34], a high content of pore formers of a small size leads to an enhancement of LHP performances compared to a classical wick. The evaporator temperature, the evaporator thermal resistance and the evaporator heat transfer performance were analysed in [35]. The heat transfer performance for the evaporator with a biporous wick is enhanced by nearly 80% compared to the evaporator with a monoporous wick.…”