本文研究了相变材料在泡沫金属中的相变凝固传热过程,建立了泡沫金属相变材料的凝固相变传热的双温度模型,并进行了凝固相变传热模拟研究.模拟表明,使用泡沫金属作为骨架可以有效改善石蜡相变传热,缩短石蜡的凝固时间;石蜡在相变传热过程中与泡沫金属之间存在温差,且在发生凝固相变时温差达到最大.研究结果还表明,泡沫金属孔隙率越小,石蜡凝固的速度越快.
参考文献
| [1] | 张涛,余建祖.相变装置中填充泡沫金属的传热强化分析[J].制冷学报,2007(06):13-17. |
| [2] | 张涛,余建祖.相变装置中填充泡沫金属的传热强化分析[J].制冷学报,2007(06):13-17. |
| [3] | A. Bhattacharya;V. V. Calmidi;R. L. Mahajan .Thermophysical properties of high porosity metal foams[J].International Journal of Heat and Mass Transfer,2002(5):1017-1031. |
| [4] | 程文龙,韦文静.高孔隙率泡沫金属相变材料储能、传热特性[J].太阳能学报,2007(07):739-744. |
| [5] | A. G. Agwu Nnanna;A. Haji-Sheikh;Kendall T. Harris .Experimental study of local thermal non-equilibrium phenomena during phase change in porous media[J].International Journal of Heat and Mass Transfer,2004(19/20):4365-4375. |
| [6] | Shankar Krishnan;Jayathi Y. Murthy;Suresh V. Garimella .A Two-Temperature Model for the Analysis of Passive Thermal Control Systems[J].Journal of heat transfer: Transactions of the ASME,2004(4):628-637. |
| [7] | A. A. Mohamad .Nonequilibrium Natural convection in a Differentially Heated Cavity Filled With a Saturated Porous Matrix[J].Journal of heat transfer: Transactions of the ASME,2000(2):380-383. |
| [8] | Shankar Krishnan;Jayathi Y. Murthy;Suresh V. Garimella .A Two-Temperature Model for Solid-Liquid Phase Change in Metal Foams[J].Journal of heat transfer: Transactions of the ASME,2005(9):995-1004. |
| [9] | 钟志刚 .相变蓄能结构能量存储与释放规律的数学模型研究[D].西安交通大学,2001. |
| [10] | 王剑锋,高广春,欧阳应秀,陈光明.组合相变材料柱状储热单元的储热特性实验研究[J].太阳能学报,2001(02):119-123. |
| [11] | 刘勇 .水平管道石蜡熔化的蓄能研究[D].西安交通大学,2004. |
| [12] | 卢涛,姜培学.多孔介质融化相变自然对流数值模拟[J].工程热物理学报,2005(z1):167-170. |
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