Commenced in January 2007
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Investigation of Cascade Loop Heat Pipes
Abstract:The aim of this research is to design a LHP with low thermal resistance and low condenser temperature. A Self-designed cascade LHP was tested by using biomaterial, sintered copper powder, and aluminum screen mesh as the wick. Using pure water as the working fluid for the first level of the LHP and 96% alcohol as the working fluid for the second level of LHP, the experiments were run with 10W, 20W, and 30W heat input. Experimental result shows that the usage of biomaterial as wick could reduce more temperature at evaporator than by using sintered copper powder and screen mesh up to 22.63% and 37.41% respectively. The lowest thermal resistance occurred during the usage of biomaterial as wick of heat pipe, which is 2.06 oC/W. The usage of cascade system could be applied to LHP to reduce the temperature at condenser and reduced thermal resistance up to 17.6%.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1339826Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 470
 N. Putra, W.N. Septiadi, H. Rahman, R. Irwansyah, “Thermal Performance of Screen Mesh Wick Heat Pipes with Nanofluids”. Experimental Thermal and Fluid Science 40 (2012) 10-17.
 N. Putra, W.N. Septiadi, R. Sahmura, C.T. Anggara, “Application of Al2O3 Nanofluid on Sintered Copper-powder Vapor Chamber for Electronic Cooling”. Advanced Materials Research 789 (2013) 423-428.
 Wolf, D., Ernst, D., and Phillips, A., Loop Heat Pipes - Their Performance and Potential, SAE Technical Paper 941575, 1994.
 Y.F. Maydanik, Loop heat pipes (review), Applied Thermal Engineering 25(2005) 635–657.
 Chuan Ren, Parametric effects on heat transfer in loop heat pipe’s wick, International Journal of Heat and Mass Transfer 54 (2011) 3987–3999.
 Jinwang Li, Experimental study on capillary pumping performance of porous wicks for loop heat pipe, Experimental Thermal and Fluid Science 34 (2010) 1403-1408.
 X. Yang, Y.Y. Yan, D. Mullen, Recent developments of lightweight, high performance heat pipes, Applied Thermal Engineering 33-34 (2012) 1014.
 Jinwang Li, Yong Zou, Lin Cheng, Randeep Singh, Aliakbar Akbarzadeh, Effect of fabricating parameters on properties of sintered porous wicks for loop heat pipe, Powder Technology 204 (2010) 241–248.
 Huan Li, Development of biporous wicks for flat-plate loop heat pipe, experimental Thermal and Fluid Science 37 (2012) 91-97.
 Chien-Chih Yeh, Chun-Nan Chen, Yau-Ming Chen, Heat transfer analysis of a loop heat pipe with biporous wicks, International Journal of Heat and Mass Transfer 52 (2009) 4426–4434.
 Jiyuan Xu, Yong Zou, Mingxiu Fan, Lin Cheng, Effect of pore parameters on thermal conductivity of sintered LHP wicks, International Journal of Heat and Mass Transfer 55 (2012) 2702–2706
 N. Putra, W.N. Septiadi, R. Saleh, R.A. Koestoer, and S. Purbo Prakoso, The Effect of CuO-Water Nanofluid and Biomaterial Wick on Loop Heat Pipe Performance, Advanced Materials Research 875 (2014) 356-361.
 N. Putra, R. Saleh, W.N. Septiadi, A.Okta, Z. Hamid, Thermal performance of biomaterial wick loop heat pipes with water-based Al2O3 nanofluids , International Journal of Thermal Sciences 76 (2014) 128-136.
 Y.F. Maydanik, S.V. Vershinin, M.A. Korukov, J.M. Ochterbeck, Miniature loop heat pipes – a promising means for cooling electronics, IEEE Trans. Compon. Packag. Technol. 28 (2) (2005) 290–296.
 Roger R. Riehl, Tulio C.P.A. Siqueira, Heat transport capability and compensation chamber influence in loop heat pipes performance, Applied Thermal Engineering 26 (2006) 1158–1168.
 Wukchul Joung, Taeu Yu, Jinho Lee, Experimental study on the loop heat pipe with a planar bifacial wick structure, International Journal of Heat and Mass Transfer 51 (2008) 1573–1581.
 Shuangfeng Wang, Weibao Zhang, Xianfeng Zhang, Jinjian Chen, Study on start-up characteristics of loop heat pipe under low-power, International Journal of Heat and Mass Transfer 54 (2011) 1002–1007.
 Wukchul Joung, Taeu Yu, Jinho Lee, Experimental study on the operating characteristics of a flat bifacial evaporator loop heat pipe, International Journal of Heat and Mass Transfer 53 (2010) 276–285.
 Yong Tang, Rui Zhou, Longsheng Lu, Zichun Xie, Anti-Gravity Loop-shaped heat pipe with graded pore-size wick, Applied Thermal Engineering 36 (2012) 78-86.
 J.S. Chen, J.H. Chou, Cooling Performance of Flat Plate Heat Pipes With Different Liquid Filling Ratios, International Journal of Heat and Mass Transfer 77 (2014) 874-882.