heat n. 1.热;热力;热度;热量。 2.体温;发烧。 3.(气候的)高温,暑气。 4.【冶金】熔炼的炉次;装炉量;一炉(钢、铁等)。 5.(赛跑等的)一场[盘、轮];预赛,竞赛;一次努力。 6.(战斗、争论、演讲等)最激烈的阶段;强烈的感情;愤怒。 7.(辣椒等的)辣味。 8.(母兽交尾期的)发情。 9.〔美俚〕威逼,压力;警察;(警察对罪犯的)侦察,逼供,穷追。 10.〔美俚〕喝醉。 11.激情。 12.浓香。 an intense heat 酷热。 black heat 暗热〔未发光时的热〕。 latent heat 潜热。 radiant heat 辐射热。 red heat 赤热。 sensible heat 【物理学】显热。 specific heat 【物理学】比热。 white heat 白热〔发光时的热〕;激情。 a heat of steel 一炉钢。 a dead heat 不分胜负的赛跑。 the final heat 决赛。 preliminary heats = trial heats 预赛。 prickly heat 痱子,汗疣。 a dead heat (竞赛中)并列名次。 at a heat 一口气地,一气呵成。 at heat (母兽等)在交尾期。 at a white heat 白热地,极端激动地。have a heat on 〔美俚〕喝醉酒。 in [on] heat = at heat. in the heat of 在(辩论等)最激烈的时候。 put the heat on sb. 逼某人干活[付款];使某人为难。 The heat's on. 〔美俚〕警察正在穷追罪犯。 turn on the heat 〔美俚〕 1. 出死劲干,拼命工作。 2. 责备,谴责。 3. 激起热情。 4. 开枪射击。 5. 穷追罪犯。 vt. 1.给…加热;使…温暖。 2.使激动,刺激。 a room heated by stove 用火炉取暖的房间。 vi. 1.变热;变暖。 2.(食物等)发热变质。 3.激动,发怒。 Water heats slowly. 水是慢慢变热的。
Comparison on performances of cascade heat pump and two - stage compression heat pump for freeze - dryer 23自动复叠制冷循环的特性研究
Experiment of performance characteristics of a compression heat pump unit driven by a gas engine 风冷燃气机驱动压缩式热泵冷热水机组运行特性试验研究
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 带经济器准二级压缩热泵系统可以很好地解决空气源热泵低温适应性问题。
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 本课题的研究有助于加快热泵行业的发展,扩大空气源热泵使用的地域范围,提高寒冷地区冬季采暖的能源利用效率,满足能源可持续发展的要求。
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 本文首先对与准二级压缩?喷射复合热泵系统的相关背景进行了综合阐述,并对该系统进行详细介绍,重点对系统中的喷射器和带辅助补气口的涡旋压缩机的工作过程进行分析并建立数学模型。
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 本课题正是在带闪发器准二级压缩热泵系统的基础上,考虑到喷射器元件可以有效利用高压流体压力能,减小系统能量损失的优点,将其引入系统以替代辅路节流阀,设计出了准二级压缩?喷射复合热泵系统。
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 由结果可以看出:在相同工况下,准二级压缩?喷射复合热泵系统可以有效降低压缩机排气温度,所消耗的电功率较闪发器节流系统有所降低,制热性能有所增加,从理论上说明该系统在解决空气源热泵低温适应性问题上有进一步突破。
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 通过实验数据来分析该系统的性能,验证和修正理论分析的方法与结果,并与相同工况下单级系统及闪发器节流系统的实验数据进行比较,从而得出准二级压缩?喷射复合热泵系统低温适应的优越性,验证了理论分析的正确性。