phase change cooling 中文意思是什麼
phase change cooling
解釋
相變致冷-
This article choosed out organic phase change materials, and, the solid - liquid - equilibrium of eleven binary system including fatty alcohol / fatty acid, n - octadecane / fatty acid, n - octadecane / fatty alcohol system were determined by cooling curve, and, t - x phase diagrams of these systems were drawn. the result shows that all these systems are simple eutectic, at the same time, the entropy of phase change of every system in the eutectic point is determined by using differential scanning calorimetry ( dsc ). and n - octadecane / fatty acid systems were calculated theoretically
本文初選出部分有機相變貯能材料，採用步冷曲線法測定了12醇-羧酸系列、 18烷-羧酸系列、 18烷- 12醇體系共11組體系的二元固液相平衡關系，繪制了這11組體系的t - x相圖，測定結果表明，這幾組體系均為簡單低共熔體系；同時利用差熱掃描量熱法（ dsc ）對上面各組體系低共熔點處的相變焓進行了測定；並對18烷-羧酸系列進行了熱力學理論預測。 -
3. for encapsulated pcms with less than 10 m in their average diameter, their temperature and heat of phase transition seldom change as their average diameter decreasing ; however, their crystallization peaks vary dramatically and the super - cooling becomes worse
3 、對于平均粒徑小於10 m的相變材料膠囊，膠囊的相變溫度以及相變熱基本不隨粒徑變化，而結晶峰變化較大，其過冷現象隨著粒徑的減小而加劇。 -
Latent heat thermal energy storage ( lhtes ), can storage energy by change the phases of phase change materials ( pcms ), which can be used to solve the nonconformity problem on supply and demand time of solar energy and industry waste heat. at the same time, it can be uesed in shifting the peak heating and cooling loads off - peak hours
相變儲熱系統通過相變材料相變時需要吸收（或放出）大量熱量的性質實現能量存儲，這對于解決太陽能與工業廢熱在供求時間上的不一致問題，以及實現電力的「移峰填谷」 ，具有重要的實用價值。 -
There are still knowledge gaps between fabrication and properties of nano - and microencapsulated phase change materials. the present research has investigated improving their thermal stability and preventing them from super - cooling in order to fabricate micropcms and nanopcms with higher performances. micropcms and nanopcms were synthesized by encapsulating n - octadecane and the other components within the melamine - formaldehyde ( abbr
本項研究以三聚氰胺樹脂為囊壁，正十八烷為囊芯，通過原位聚合法制備相變材料微膠囊以及納膠囊，並通過sem 、 dsc 、 tg - dta 、 xrd 、 ftir 、 gc等分析測試手段對這些膠囊性能進行了系統研究和分析。
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