Heat transfer enhancement in a three-phase closed thermosyphon

Jiang, Feng; Chen, Wenjing; Ze, Liu; Shi, Jianxin; Li, Xiulun

doi:10.1016/j.applthermaleng.2014.01.043

Cited by 17 publications

(1 citation statement)

References 23 publications

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“…Natural convection based systems are getting attraction for their promising heat transfer properties, better thermal performance and zero energy utilization. Thermosyphon is green energy device widely used in water and space heating, Third Generation (3G) telecommunication equipment cooling [1], power generation aerospace applications [2], heat recovery from sewage gases, food storage units [3], auto industry, nuclear reactors cooling and many more [4]. Nuclear power plants require continuous cooling with operation stability and safety.…”

Section: Introductionmentioning

confidence: 99%

Parametric Quantification of Low GWP Refrigerant for Thermosyphon Driven Solar Water Heating System

2015

(IJTEE)

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Modern lifestyle, industrialization and economy thrive on energy which is getting expensive overtime. Thermosyphon based systems are getting attraction for their promising heat transfer efficiency and zero energy utilization. Refrigerants having ozone depletion potential (ODP) and high Global Warming Potential (GWP) have been banned or under time bared permission under Montreal (1987) and Kyoto (1997) protocols. We have devolved a Refrigerant Parametric Quantification (RPQ) method for the choice of optimal refrigerant for density driven solar water heaters. A set of 29 refrigerants are simulated Using REFPROP under various temperature and pressure conditions. The optimal parameters of thermosyphon system are identified from governing equations, international environment safety protocols and open literature. The proposed RPQ method shows most appropriate refrigerant for given temperature range. In second part, the proposed system is simulated in TRNSYS using forced circulation method. In the end, a glass evacuated tube collector is developed and tested on the principal of thermosyphon, employing the best refrigerant emerged from simulation study.

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Section: Introductionmentioning

confidence: 99%