本文選題：風(fēng)機(jī)位置 + 循環(huán)倍率�。� 參考：《低溫與超導(dǎo)》2017年09期

【摘要】：根據(jù)場(chǎng)協(xié)同原理,可通過(guò)改變制冷劑循環(huán)倍率、蒸發(fā)風(fēng)機(jī)距離蒸發(fā)器的位置,來(lái)改變場(chǎng)協(xié)同數(shù),提高換熱效率。通過(guò)實(shí)驗(yàn)得出,當(dāng)蒸發(fā)器進(jìn)液溫度為-30℃,實(shí)驗(yàn)中的制冷劑循環(huán)倍率從4.0增大到4.7,風(fēng)機(jī)位置從21cm到36cm,換熱器的場(chǎng)協(xié)同數(shù)存在極大值0.9。所測(cè)的降溫速度、計(jì)算的COP均在場(chǎng)協(xié)同數(shù)達(dá)到極大值時(shí)最佳,系統(tǒng)達(dá)到最優(yōu)。
[Abstract]:According to the principle of field coordination, the number of field synergy can be changed and the heat transfer efficiency can be improved by changing the refrigerant circulation ratio and the position of the evaporator from the evaporator. The experimental results show that the refrigerant circulation ratio increases from 4.0 to 4.7, and the fan position ranges from 21cm to 36 cm when the temperature of the evaporator is -30 鈩，

本文編號(hào)：1837169