heat n. 1.熱;熱力;熱度;熱量。 2.體溫;發(fā)燒。 3.(氣候的)高溫,暑氣。 4.【冶金】熔煉的爐次;裝爐量;一爐(鋼、鐵等)。 5.(賽跑等的)一場[盤、輪];預(yù)賽,競賽;一次努力。 6.(戰(zhàn)斗、爭論、演講等)最激烈的階段;強烈的感情;憤怒。 7.(辣椒等的)辣味。 8.(母獸交尾期的)發(fā)情。 9.〔美俚〕威逼,壓力;警察;(警察對罪犯的)偵察,逼供,窮追。 10.〔美俚〕喝醉。 11.激情。 12.濃香。 an intense heat 酷熱。 black heat 暗熱〔未發(fā)光時的熱〕。 latent heat 潛熱。 radiant heat 輻射熱。 red heat 赤熱。 sensible heat 【物理學(xué)】顯熱。 specific heat 【物理學(xué)】比熱。 white heat 白熱〔發(fā)光時的熱〕;激情。 a heat of steel 一爐鋼。 a dead heat 不分勝負的賽跑。 the final heat 決賽。 preliminary heats = trial heats 預(yù)賽。 prickly heat 痱子,汗疣。 a dead heat (競賽中)并列名次。 at a heat 一口氣地,一氣呵成。 at heat (母獸等)在交尾期。 at a white heat 白熱地,極端激動地。have a heat on 〔美俚〕喝醉酒。 in [on] heat = at heat. in the heat of 在(辯論等)最激烈的時候。 put the heat on sb. 逼某人干活[付款];使某人為難。 The heat's on. 〔美俚〕警察正在窮追罪犯。 turn on the heat 〔美俚〕 1. 出死勁干,拼命工作。 2. 責備,譴責。 3. 激起熱情。 4. 開槍射擊。 5. 窮追罪犯。 vt. 1.給…加熱;使…溫暖。 2.使激動,刺激。 a room heated by stove 用火爐取暖的房間。 vi. 1.變熱;變暖。 2.(食物等)發(fā)熱變質(zhì)。 3.激動,發(fā)怒。 Water heats slowly. 水是慢慢變熱的。
Comparison on performances of cascade heat pump and two - stage compression heat pump for freeze - dryer 23自動復(fù)疊制冷循環(huán)的特性研究
Experiment of performance characteristics of a compression heat pump unit driven by a gas engine 風(fēng)冷燃氣機驅(qū)動壓縮式熱泵冷熱水機組運行特性試驗研究
The quasi two - stage compression heat pump system with economizer can effectively improve the deficiencies of conventional air - source heat pump when running in low ambient temperature 帶經(jīng)濟器準二級壓縮熱泵系統(tǒng)可以很好地解決空氣源熱泵低溫適應(yīng)性問題。
It shows that the quasi two - stage compression heat pump system coupled with ejector can make use of energy more effectively , which proves that the point of the task is correct . this study will quicken the development of heat pump industries , expand the 本課題的研究有助于加快熱泵行業(yè)的發(fā)展,擴大空氣源熱泵使用的地域范圍,提高寒冷地區(qū)冬季采暖的能源利用效率,滿足能源可持續(xù)發(fā)展的要求。
In the paper , interrelated background and working principle of the quasi two - stage compression heat pump system coupled with ejector are introduced in detail firstly . working process of ejector and scroll compressor with supplementary inlet are analysed mainly and the mathematic model of the system is set up 本文首先對與準二級壓縮?噴射復(fù)合熱泵系統(tǒng)的相關(guān)背景進行了綜合闡述,并對該系統(tǒng)進行詳細介紹,重點對系統(tǒng)中的噴射器和帶輔助補氣口的渦旋壓縮機的工作過程進行分析并建立數(shù)學(xué)模型。
On the base of the quasi two - stage compression heat pump system with economizer , considering that it can make use of the pressure energy of liquid with high pressure and minish energy losing of the system , ejector is adopted to replace the throttle in the assistant loop , and design the quasi two - stage compression heat pump system coupled with ejector 本課題正是在帶閃發(fā)器準二級壓縮熱泵系統(tǒng)的基礎(chǔ)上,考慮到噴射器元件可以有效利用高壓流體壓力能,減小系統(tǒng)能量損失的優(yōu)點,將其引入系統(tǒng)以替代輔路節(jié)流閥,設(shè)計出了準二級壓縮?噴射復(fù)合熱泵系統(tǒng)。
The conclusion is drawn that in the quasi two - stage compression heat pump system coupled with ejector , discharge temperature of the compressor is decreased effectively , electric power is reduced , and heating performance is increased compared with those of the flash - tank throttle system in the same conditions . it shows that the quasi two - stage compression heat pump system coupled with ejector improves performances of air - source heat pump in theory 由結(jié)果可以看出:在相同工況下,準二級壓縮?噴射復(fù)合熱泵系統(tǒng)可以有效降低壓縮機排氣溫度,所消耗的電功率較閃發(fā)器節(jié)流系統(tǒng)有所降低,制熱性能有所增加,從理論上說明該系統(tǒng)在解決空氣源熱泵低溫適應(yīng)性問題上有進一步突破。
At the same time , experiment data of the prototype are compared with those of the conventional system and the flash - tank throttle system to test the correctness of the theory . at last , exergy of the quasi two - stage compression heat pump system coupled with ejector is analysed , such as exergy loss , exergy efficiency and exergy loss distributing , and compared with those of the flash - tank throttle system 通過實驗數(shù)據(jù)來分析該系統(tǒng)的性能,驗證和修正理論分析的方法與結(jié)果,并與相同工況下單級系統(tǒng)及閃發(fā)器節(jié)流系統(tǒng)的實驗數(shù)據(jù)進行比較,從而得出準二級壓縮?噴射復(fù)合熱泵系統(tǒng)低溫適應(yīng)的優(yōu)越性,驗證了理論分析的正確性。