外文翻譯---氣候條件對(duì)地源熱泵系統(tǒng)性能的影響(存儲(chǔ)版)
【正文】 alent action way to satisfy the requirements of heating and cooling in many applications,because they can use renewable energy in the building’s surroundings. In this paper, a parative discussion is given to the effect of climatic on applying ground source heat pump system of the results can lead to the following conclusions: If only extracting heat from the earth,in two months, the soil temperature near the GSHP would be reduced to lower than 20℃ . If only injecting mheat for three months, the soil temperature would be over 37℃ , which is no longer suitable for airconditioning. To preserve the ground resource for sustainable utilization as heat source/sink, it should be balanced between the heat injected to the ground and that extracted from the ground. Some measures can be considered in the design for the case of heat unbalance. Key words: climatic condition, Ground Source Heat Pump, heat unbalance. 1. INTRODUCTION Domestic heating and cooling consumption are responsible for a average percentage of world energy consumption. About half of this primary energy in China is consumed in the form of coal,which can not be regenerated. Ground source heat pumps (GSHPs) offer the most efficient way to provide heating and cooling among many applications, as they rely on renewable heat sources of the building39。如果僅是吸取熱量，兩個(gè)月后，換熱器附近的土壤溫度將會(huì)下降到 20 攝氏度以下。圖 7.(a)顯示了制冷模式下運(yùn)行一年后的土壤溫度。在夏季，單 U 型管和雙 U 型管每米傳熱能力的變化幅度大致是一樣的，從開始約 40 瓦特 /米下降到 30 瓦特 /米以下，特別地，在運(yùn)行 40天后，其降幅 最大。在試驗(yàn)的開始階段，夏季的土壤溫度是 28 攝氏度。 (a)夏季 (b)冬季 圖 土壤濕度主要受空氣濕度的影響。熱電偶的輸出溫度被傳輸?shù)綌?shù)據(jù)記錄器中并記錄在計(jì)算機(jī)中。熱泵的工作流體是 R22。但是，人們發(fā)現(xiàn)在高出土壤飽和度 50％的水分含量影響下，相對(duì)來說，熱泵就沒有實(shí)際價(jià)值了 [5]。在地源熱泵應(yīng)用中，對(duì)土壤熱能的儲(chǔ)存或提取是通過地?zé)釗Q熱器 (GHE)實(shí)現(xiàn)的。 關(guān)鍵詞： 氣候條件；地源熱泵；熱不平衡 用于家庭取暖和降溫的能源消費(fèi)量在世界能源消費(fèi)量中所占的比例是一樣的。 外 文 翻 譯 題 目： 氣候條件對(duì)地源熱泵系統(tǒng)性能的影響 1 氣候條件對(duì)地源熱泵系統(tǒng)性能的影響 摘要： 在中國的建筑物中，初級(jí)能源的 30％用于加熱和冷卻。在一些熱不平衡的工程實(shí)例設(shè)計(jì)中，一些措施是可以考慮的。但是，一旦安裝完畢后，就整個(gè)系統(tǒng)的使用壽命而言每年的費(fèi)用是比較低的，從而導(dǎo)致了凈儲(chǔ)蓄 [1,2]?？v向回路系統(tǒng)被認(rèn)為運(yùn)營操作較好，特別是在制冷模式中 [4]。冷媒環(huán)路是由兩個(gè)閉環(huán)銅管組成的。圖 2 中的黑色圓點(diǎn)表示了熱電偶的位置。對(duì)于每個(gè)鉆孔，鉆孔壁所反映的溫度 (土壤溫度 )是由構(gòu)成地?zé)釗Q熱器的兩個(gè)部分加熱達(dá)到的：一部分溫度增加 /減少是由于運(yùn)行過程中鉆孔本身的線源 (U 型管 )所導(dǎo)致的，另一部分是由土壤的濕度所導(dǎo)致的。熱泵開啟 40 小時(shí)后作為記錄起始點(diǎn)。正如圖 6.(a)和 (b)分夏季和冬季所顯示的那樣，隨著運(yùn)行時(shí)間的延長，不同地?zé)釗Q熱器的每米傳熱能力逐漸下降。運(yùn)行一年后，土壤溫度要恢復(fù)到熱泵能夠再次運(yùn)行的水平。從結(jié)果可以看出，氣候條件對(duì)地源熱泵系統(tǒng)性能的影響非常顯著。s surroundings. Lund JW (2020) observed that ground source heat pump system was considered to be a machine system which can use energies efficiently, and GSHPs have several advantages over air source heat pumps. These are: (a) they consume less energy to operate, (b) they do not require supplemental heat at extremely low outside temperature, (c) they use less refrigerant, (d) they have a simpler design and less maintenance subsequently and (e) they do not require the unit to locate where it is exposed to weathering. However, the main disadvantage is the higher initial capital cost, being about 30–50% more expensive than air source units. This is due to the extra expense and effort to bury heat exchangers in the earth or provide a well for the energy sources. However, once installed, the annual cost is less over the life of the system, resulting in savings [1, 2]. In ground heat pump applications, deposition or extraction of thermal energy from the ground is acp
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