CAJ | 학술논문

基于元体平衡法，建立了冷柜多层保温材料的温度场计算模型．利用该模型计算出VIP真空板分别设置在高温侧和低温侧两种情况下其内部温度场的变化规律．研究结果表明，VIP真空板放置在高温侧时，整个真空板处在33．9～－65．4℃的温度场范围内，在此范围内保温材料内部温度的变化不明显．当VIP真空板放置在低温侧时，整个真空板处在－10．2～－85．7℃的温度场范围内，真空板内部温度变化较明显，保温效果不佳．建议多层保温材料混合使用时，导热系数较小的保温材料应放置在高温侧为宜．
기우원체평형법，건립료랭거다층보온재료적온도장계산모형．이용해모형계산출VIP진공판분별설치재고온측화저온측량충정황하기내부온도장적변화규률．연구결과표명，VIP진공판방치재고온측시，정개진공판처재33．9～－65．4℃적온도장범위내，재차범위내보온재료내부온도적변화불명현．당VIP진공판방치재저온측시，정개진공판처재－10．2～－85．7℃적온도장범위내，진공판내부온도변화교명현，보온효과불가．건의다층보온재료혼합사용시，도열계수교소적보온재료응방치재고온측위의．
Based on the element balance method , the calculation model of the temperature field about the refrigerator multilayer thermal insulation material was established .By using the model , the change rule of the internal temperature field was calculated when the VIP vacuum plate is placed respectively in the high temperature side and low temperature side in both cases .The results showed that when VIP vacuum plate was placed in the high tempera-ture side, the whole vacuum plate was in the temperature range of 33.9~-65 ℃.Within the scope , it was not obvious that the temperature change of insulation materials .When the VIP vacuum plate was placed in the low temperature side , the whole vacuum plate was in the temperature range of -10 .2~ -85 .7 ℃.The change of internal material ’ s temperature was obvious in the vacuum plate .The heat preservation was not good .It was suggested that when the multilayer insulation materials was mixed , the insulation materials with small ther-mal conductivity should be placed in the high temperature side .