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ÔÚ·ÉÏhenu(fjtony163´ú·¢): ½ð±Ò+30, ´ú·¢ 2016-04-17 04:13:50
ÔÚ·ÉÏhenu(fjtony163´ú·¢): ½ð±Ò+30, ´ú·¢ 2016-04-17 04:14:01
ÔÚ·ÉÏhenu(fjtony163´ú·¢): ½ð±Ò+30, ´ú·¢ 2016-04-17 04:14:10
ÔÚ·ÉÏhenu(fjtony163´ú·¢): ½ð±Ò+10, ´ú·¢ 2016-04-17 04:14:17
fjtony163: ·­ÒëEPI+1, ´ú·¢ 2016-04-17 04:14:23
ÔÚ¿¼ÂÇ ×ÔÈ»¶ÔÁ÷µÄ Çé¿öÏ£¬ÀûÓà FLUENTÈí¼þ Ñо¿ÁË ½ø¿Ú¹¤¿ö¡¢Ä£Ðͽṹ¡¢Ïà±ä²ÄÁÏ(PCM)ÎïÐÔ ¼° Ïà±ä²ÄÁÏ×éºÏ ¶Ô ÁйÜʽ Ïà±ä´¢ÄÜ»»ÈÈÆ÷ ´¢ÈÈ»»ÈÈÐÔÄÜ µÄÓ°Ïì¡£½á¹û±íÃ÷£ºÔÚ ½ø¿Ú¹¦ÂÊ Ò»¶¨µÄ Ìõ¼þÏ£¬Ìá¸ß ½ø¿ÚÎÂ¶È »ò ½ø¿ÚËÙ¶È ¶Ô Ç¿»¯»»ÈÈЧ¹û Ó°Ïì²»´ó£»¹ÜÄÚ Ìí¼Ó³áƬ ¼° Ìá¸ßÏà±ä²ÄÁÏ µ¼ÈÈϵÊý ¶Ô Ç¿»¯»»ÈÈ ½ÏΪÏÔÖø£¬×î¼ÑµÄ³áƬ ½á¹¹ ½Ï ¹â¹Ü½á¹¹ µÄ ÍêÈ«ÈÛ»¯Ê±¼ä Ìá¸ßÁË30.7£¥£¬µ« Ò²Ò»¶¨³Ì¶ÈÉÏ Ï÷ÈõÁË ×ÔÈ»¶ÔÁ÷ Ç¿»¯»»ÈÈ×÷Óã»¶ÔÓÚ ¹ÜÁÐÊý½Ï¶à µÄÇé¿ö£¬Ê¹Óà Ïà±ä²ÄÁÏ×éºÏ ÊÇÒ»ÖÖÓÐЧµÄ Ç¿»¯»»ÈÈ·½Ê½
Under the condition where natural convection is considered, we researched the influences of inlet condition, model structure, PCM physical property and combination of PCMs on the heat accumulation and heat transferring performance of tubular phase-change heat storage and transferring device using FLUENT software. Results show that under certain inlet power, increasing inlet temperature or velocity makes an insignificant effect to heat transfer enhancement performance; while adding more fins in tube or increasing heat conductivity coefficient of PCM can make a significant difference. It shows that the structure with optimal number of fins accelerated complete melting time by 30.7£¥ than structure without fins did, while it also reduce the role of natural convection in heat transfer enhancement in certain degree; For structure with relatively large number of tubulatures, combination of PCMs is an effective method for heat transfer enhancement.
2Â¥2016-03-18 12:30:29
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