空調制冷相關外文翻譯

1、<p><b>　　附錄A</b></p><p>　　Abstract: Cooling panels are increasingly used in domestic residential buildings. To provide medium temperature cold water for the cool噸panel, and dehumidify the in

2、door air simultaneously, a new kind of temperature-humidity independent control air-conditioning unit was developed for single residential house by utilizing multi-variable technology. First, the supply sir temperature w

3、as studied to determine the proper supply air flow rate for the humidity control. Then, the energy consumption of di</p><p>　　In the ventilation standards, the indoor relative humidity was always ignored in

4、the past, because if the relative humidity is maintained between 30 % and 70 %，it affects little on people’s thermal oom-fort. In Yangtze River area, the outdoor air humidity is very high in the whole year, so the buildi

5、ngmoisture load needs to be taken into consideration when designing the air-conditioning system. Jiang Yi etc. started to study the temperature and humidity control air-rnnditioning system in 199</p><p>

6、　　However, the liquid desiccant dehumidificationsystems are often too large and expensive for a residential house. Thus, to develop a new kind of air-conditioner for the residential building to control the temperature an

7、d humidity independently is the very problem that we are facing with and to solve.</p><p>　　Radiation panel is a new kind of air conditioning device removing heat through radiation. The watersupply temperatu

8、re cannot exceed the indoor dewpoint temperature in~of condensation on its surface. However, the water supply temperature is always around 7 Celsius degree, which is much lower than the indoor dew point temperature. Cons

9、equentheat exchangers or mixture valves are needed toget medium temperature cold water ( around 18 Celsins degrees)，which is obviously a waste of energyaccording to </p><p>　　At the same time, dry air is nee

10、ded to compensate the indoor latent load; otherwise, condensation may happen on the surface of the radiation panel. In this paper, we developed a high efficiency residential air-conditioning unit, which can produce mediu

11、m temperature cold water and dry air simulta neously to deal with the sensible load and latent load separately.</p><p>　　In the cold dehumidification, the supply air is handled by surface air cooler to remov

12、e the water vapor in it. The temperature and humidity ratio of thesupply air are both lowered, so that it can handle the entire indoor moisture Toad, while undertake a part of the sensible heat load. From the point of vi

13、ew of en- ergy conservation, it is assumed that the air is supplied at dew-point temperature.</p><p>　　Under certain indoor moisture load, the supply air flow rate changes with its temperature. If the temper

14、ature of the supply air is relatively high, e. g.，16℃，its humidity ratio is relatively high, thus, it canless moisture of unit~air flow rate, so the supply air flowrate has to be enlarged to meet the dehumidification req

15、uiretnent. On the contrary,遷the supply air temperature is low, less air flow rate is needed tothetore. The supply air flow rate at different supply tempetalure is s)bvm in fig.</p><p>　　For the residential b

16、uildings, the outdoor air flow rate is determined by the rate of ventilationiel.Thus, in a residential house, of which the area isfixed, the outdoor air flow rate is constant, while thesupply air flow rate changes accor

17、ding to its temperalure. Consequently, the minimum supply air temper-store can be obtained, because the minimum supplair flow rate is the outdoor air flow rate.</p><p>　　From fig.2 and fig. 3, we can find th

18、at the minimam supply air temperature decreases with the in'crease of indoor moisture load. At the same supply aiitemperature, the supply sir flow rate increases with</p><p>　　In the application, dedica

19、ted outdoor air andoutdoor air plus return air are both frequently used.</p><p>　　In the dedicated outdoor air system, the supply airtemperature is relatively low, so its cold source ener-gy efficiency is re

20、latively low, which will decrease thesystem efficiency. But it handles less indoor sensibleheat load,，the high temperature cold source will undertake more load, which can enhance the system efficiency. In order to study

21、whether the dedicated outdoor air system or the outdoor a us return air system is~efficient, numerical models are established to estimate their performance</p><p>　　The study results show that if ieturn sir

22、is used in the supply air to remove the moisture, the energy consumption is less than the case that only outdoor air is used to remove the moisture. As a result, air banfiling unit should be designed according to the out

23、door air plus return air flow rate.</p><p>　　Different low temperature cold source and high temperature cold source can be used to handle the indoor moisture load and sensible heat load. In the table below,

24、the equipments and their required temperature are listed.</p><p>　　In fig. 6, the study results show that when di-rest expansion dry coils are used to handle the indoor sensible heat load, the energy consump

25、tion will beless than using radiation panels. It is because that the refrigerant exchange heat with the air directly, without producing medium temperature cold water, so the evaporating temperature will be higher for the

26、 sensible heat handling unit. However, these kinds of sen Bible heat handling units are seldom used in application. On the contrary, radiati</p><p>　　Temperatnre-Hamidity Independent Con trol Unit Experiment

27、</p><p>　　Based on the above study, unity evaporating temperature can be used in two evaporators to control the indoor temperature and humidity independently.Its scheme is shown in fig.</p><p>　

28、　When running at part Ioad, if "on-off" control isused in the system, the indoor humidity cannot be properly controlled, so the water vapor may condense on the surface of the radiation panel. Consequently,varia

29、ble refrigerant technology should be exerted to control the indoor humidity continuously.</p><p>　　If capillary tube is used as the throttling governor, the throttling capability is fixed anct the refrigeran

30、t mass flow rate ratio in two evaporators is also fixed. As a result, when the moisture load increases,the total refrigerant mass flow rate has to be enhanced to meet the dehumidification requirement also enhance the coo

31、ling capacity. But which will the cooling load may not increase with the moisture load, so the indoor temperature will be lowered. Similarly, when the indoor moisture load </p><p>　　These cases will cause pe

32、ople uncomfortable and energy waste. Electric expansion valves can adjust the refrigerant mass flow rate in the two evaporators to control the dehumidification and cooling capacity. Consequently, electric expansion valve

33、s should be ex-erted to control the refrigerant mass flow rate to meet the dehumidification and cooling load at the same Based on the above analysis, the unity evaporating temperature tem-hum independent control AC s

34、ystem is designed and produced.</p><p>　　From the point of view of thermal dynamics, the thermal cycle of this kind of unit is as simple as an ordinary AC unit. But the two evaporators work together to meet

35、the requirement of dehumidification and cooling, so the working status of the two evaporators have to be studied to obtain the running point of the unit under different moisture load and cooling load. Experimental wor

36、k is carried out to investigate its performance under different circumstances.</p><p>　　In order to obtain the impact of outdoor air temperature, indoor air temperature, indoor air relative humidity, compres

37、sor frequency, and refrigerant rado in two evaporators on the performance of the unit, orthogonal experiments are designed.</p><p>　　The unit conducted orthogonal experiments and the results reveal that, the

38、 frequency of compressor and the distribution of refrigerant in air side and water side have great impact on dehumidification capacity, cooling capacity and the efficiency. From the unit performance study, we can obta

39、in the running point and EER of the unit under different circumstances, thus, the energy consumption of the unit in the cooling can 6e estimated. The result showed that the unity evaporating temperature e t</p>&l

40、t;p>　　Two evaporators were used to produce medium temperature water and dry air separately, and electric expansion valve was used to control the refrigerant distribution between the two evaporators. Then, experimental

41、 work was carried out to investigate the influence of compressor frequency, refrigerant distribution on the dehumidification capacity, energy efficiency and refrigeration capacity, which led to the conclusion that both c

42、ompressor frequency and refrigerant distribution can control the dehu</p><p><b>　　附錄B</b></p><p>　　冷卻板正越來越多地應用于國內住宅。提供中期溫度為冷水，除濕室內空氣的同時，一種新的引入溫濕度獨立控制空調系統(tǒng)提出了利用單住宅多元技術。首先，供應先生溫度的研究，來判定

43、正確的供應空氣流量的濕度控制。然后，能耗控制系統(tǒng)引入溫濕度獨立的不同進行了研究。分析結果表明:統(tǒng)一蒸發(fā)溫度可以用來處理水分負荷和熱負荷兩蒸發(fā)器明智。所以單位方案提出了建議。兩個蒸發(fā)器是用來生產中溫度水和干燥的空氣分開，并電子的膨脹閥是用來控制兩蒸發(fā)器制冷劑間分布。然后，實驗工作進行了壓縮機頻率的影響、冷凍除濕能力上的分布、能源效率和制冷能力。最后，本文認為，壓縮機頻率和制冷劑分布都能控制的，但前者除濕能力的影響比后者曾更多，而后者影響制

44、冷能力超過前者。我們可以找到一個合適的運行點在某些明智和潛在的冷負荷調節(jié)壓縮機頻率和電調節(jié)閥兩者。的能源消費這種單位進行了估算，并與目前相比空調，~表明它可以節(jié)省約41%空調能耗。</p><p>　　在通風標準，總是忽略室內相對濕度在過去，因為如果相對濕度保持在30%和70%之間。在長江地區(qū)，室外空氣濕度很高，所以全年負荷需要考慮的空調系統(tǒng)設計。江伊等開始研究溫度和濕度的控制系統(tǒng)1990 x。他們指出低溫冷源提

45、供必須第六版拆卸兩個明智的潛在的負載，這是一個能量的浪費，因為明智的負荷可以通過拆卸更高——真正的冷源彩畫。他們發(fā)明了一種液體干燥劑除濕系統(tǒng)來控制濕度和冷水中溫冰箱控制溫度。</p><p>　　然而，液體除濕往往太大、太貴了，住宅。因此，開發(fā)一種新型的住宅建筑的空調控制的溫度和濕度是很獨立的問題。我們面臨和解決。</p><p>　　輻射板是一種新型的空調裝置移除熱量輻射。在給水溫度不能

46、超過室內對冷凝溫度在它的表面。然而，供水溫度總是在晚間7攝氏度，這遠遠低于露點溫度的室內。換熱器或混合閥門需要冷水中溫(大約18度)，這顯然是一個浪費根據(jù)熱力學第二定律。因此，生產中溫度冷水直接是解決問題的莫過于，他近在身旁。</p><p>　　與此同時，干燥的空氣是必要的補償室內潛熱負荷可能發(fā)生;否則，冷凝表面上的輻射板。</p><p>　　在本文中，我們開發(fā)了一種高效住宅空調裝置，

47、適用于生產中溫度和干燥的空氣冷水處理明智的負荷和潛熱負荷另行規(guī)定。</p><p>　　在寒冷的除濕送風處理，去除表面空氣冷卻器的水汽。的溫度和濕度的空氣都是比例降低，使它可以控制整個室內濕氣蟾蜍，而進行的一部分，明智的熱負荷。從的角度來看，en -寬保護，假定我們供應在空氣的溫度。</p><p>　　在一定條件下濕負荷，供給室內空氣流動速度的變化與溫度。如果溫度的送風相對高，如敞開式，

48、16℃，濕度比相對較高，因此，它水分的單位~空氣流量，所以這些補充進來的空氣流量必須擴大到除濕滿足。相反，送風溫度低，少，產生的空氣流量需要。這些補充進來的空氣流量在不同的供應是在圖1。</p><p>　　對住宅建筑室外空氣流量是由的速度。因此，在住宅，地區(qū)室外空氣流量不變，而空氣流量根據(jù)其變化。因此，最低送風可以獲得最低因為室外空氣流量的流量。</p><p>　　從圖2和圖3，我們可

49、以發(fā)現(xiàn)送風溫度下降與室內濕負荷。在相同的供應供給流量增加在應用、專用室外空氣空氣加強型回風都是經常使用的。</p><p>　　在專用室外空氣系統(tǒng)，提供較低，所以它的冷源效率相對較低的能源系統(tǒng)，可以大大降低效率。但它處理室內負荷、少，高溫冷源來進行更多的負荷，可以提高系統(tǒng)的效率。為了研究是否專用室外空氣系統(tǒng)或戶外美國回風系統(tǒng)高效、數(shù)值模型設立的估計他們的演出。</p><p>　　研究結果

50、表明，如果被用于送風除去水分，能耗低于事實是只有室外空氣研究結果表明，如果被用于送風除去水分，能耗低于事實是只有室外空氣是用來除去水分。作為一個結果，空氣單元的設計要根據(jù)室外空氣加強型回風流量。</p><p>　　不同的低溫冷源和高溫冷源可以用來處理室內濕負荷和感熱負荷。在下表中，設備和他們需要的溫度都列在上面。</p><p>　　在圖6，研究結果表明，當干盤管擴張是用來處理室內明智的

51、熱負荷，能源消費比使用輻射板。這是因為制冷劑熱空氣直接交流，沒有生產中溫度冷水，所以蒸發(fā)溫度會更高的顯熱處理單元。然而，這些類型的森圣經熱處理單位很少用到的應用前景。相反，輻射板可廣泛用于獨立，單位的設計是為了提供干送風和中等彩畫吸引冰冷的水里。泡時的部分，如“開關”的控制系統(tǒng)，廣泛運用于室內濕度，所以不能適當控制水汽可以濃縮在水面上的輻射板。因此，對冷凍技術應變量控制室內濕度不斷。</p><p>　　如果是用

52、毛細管節(jié)流總監(jiān)、節(jié)流能力是固定的制冷劑質量流率在兩蒸發(fā)器比也不變。結果，當水分負荷的增加，總制冷劑質量流率必須加強以滿足的要求也提高除濕冷卻能力。但這將冷負荷不得增加濕負荷，所以室內溫度會降低。同樣的，當室內濕負荷減少，如果年底冷卻能力需要一直保持室內溫度代替，使制冷劑質量流率，從而也將代替，室內濕上升。</p><p>　　這些個案將使人感到不舒服，能源浪費。電子的膨脹閥可以調整制冷劑質量流率控制在兩蒸發(fā)器除濕

53、和冷卻能力。因此，電子的膨脹閥應控制制冷劑質量流率，以滿足除濕空調冷負荷在同一基于以上分析，統(tǒng)一蒸發(fā)溫度控制空調系統(tǒng)獨立的設計和制作。</p><p>　　從的角度來看，熱動力學、熱循環(huán)的這種簡單的單位作為普通空調機組。但這兩個蒸發(fā)器一起工作，以滿足你的需求和冷卻除濕，所以工作狀態(tài)下的兩個蒸發(fā)器進行研究，以獲得必須運行點的單位在不同濕負荷和冷卻負荷。實驗工作進行了研究其性能在不同的場合。</p>&

54、lt;p>　　為了獲得室外空氣溫度的影響，室內溫度、室內空氣相對濕度、壓縮機頻率、制冷劑兩蒸發(fā)器業(yè)績的單位，通過正交實驗設計。</p><p>　　通過正交實驗單位進行，結果表明，壓縮機的頻率的分布在空氣側制冷劑和水側除濕能力有重要影響作用、冷卻能力和效率。從單位性能研究，得出運行點和機組的能效比，因此，在不同情況下的能耗單元中冷卻可以第六版估計。結果表明，統(tǒng)一蒸發(fā)溫度獨立控制單元，能節(jié)省約41%的能耗比普

55、通的房間從而控制室內溫度而已。</p><p>　　兩個蒸發(fā)器是用來生產中溫度和干燥的空氣，水和電分別是用來控制膨脹閥制冷劑兩蒸發(fā)器間分布。然后，實驗工作的影響進行了研究，制冷壓縮機頻率分布對除濕能力、能源效率和制冷能力，這導致了這樣的結論，這兩個壓縮機頻率和冷凍除濕能力分布可以控制，但前者的影響比后者曾更多，而后者的影響超過前者制冷。我們可以找到一個合適的運行點一定明智的和潛在的冷負荷調整兩頻率和電子的膨脹閥。