外文翻譯---氣候條件對(duì)地源熱泵系統(tǒng)性能的影響-資料下載頁(yè)
2025-05-12 09:20本頁(yè)面
【導(dǎo)讀】摘要：在中國(guó)的建筑物中，初級(jí)能源的30％用于加熱和冷卻。在這方面應(yīng)用最廣泛的設(shè)備是鍋爐和。在許多應(yīng)用中，熱泵是唯一能滿足加熱和冷卻要求的運(yùn)行方式，因?yàn)樗麄兛梢岳媒ㄖ镏?。圍的可再生能源。在本文中，?duì)氣候?qū)?yīng)用地源熱泵系統(tǒng)技術(shù)的影響進(jìn)行了對(duì)比討論。如果向土壤排入相同的熱量三個(gè)月，土壤溫度將會(huì)超過(guò)37攝氏度，那將不再適合。為了使作為熱源/冷源的土地資源實(shí)現(xiàn)可持續(xù)利用，就應(yīng)該使向土地排入的熱量與從土。地吸取的熱量保持平衡。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。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。國(guó)大約一半的初級(jí)能源是以煤的形式供給的，而煤是不可再生能源。露而風(fēng)化的部位。過(guò)程是暫時(shí)性的。和氣候條件的變化而變化。環(huán)路的，分別稱之為單U型管，雙U型管或套管地?zé)釗Q熱器。空氣濕度隨季節(jié)變化而有很大波動(dòng)并且在夏季最高。天后，其降幅最大。
【正文】 0W/m after running for 40 days. These are because of the deteriorating of the heat transfer characteristics of ground described above. The case is similar in winter as presented in (b). After a period of stopping operation of heat pump, the heat transfer capacity of single Utube and Double Utube decrease from about 60W/m at the beginning to lower than 45W/m when extracting heat from ground. The heat transfer capacity of cannula decreases from 45W/m to lower than 25W/m. The heat pump system can not be operated continuously just described above. After running for a year, the ground temperature recovered to a level in 氣候條件對(duì)地源熱泵系統(tǒng)性能的影響 12 which the heat pump can operate again. .(a) shows the ground temperature at cooling mode after running for a year . The ground temperature increases from 25℃ of the beginning . (b) presents the heat transfer capacity distributions of GHEs at cooling mode after running for a year. It can be noticed that the heat transfer capacity of three GHEs are higher pared to that presented in (a) during same operation times. Analyzing the results, it can be inferred that the heat transfer characteristics of GHEs and ground have been enhanced after a certain time of hybrid operation. The heat emitted to the ground and heat extracted from the ground should be balanced. 4. Conclusions This paper conducted serial experiments of the effect of climatic on applying Ground source heat pump system technology. From the results, it can be conducted that climate conditions significantly affect the performance of Ground source heat pump system. If only extracting heat, after two months, the Ground temperature near the GHEs would be reduced to lower than 20℃ . If only injecting heat for three months, the ground temperature would be over 37℃ , which was not suitable for airconditioning any longer. To preserve the ground resource for the sustainable utilization as heat source/sink, the heat injected to the ground and heat extracted from the ground should be balanced. As a final conclusion, the GHEs established for ground source heat pumps should adapt itself to south China climates with even more advantages. Some measures can be considered in the design for the case of heat unbalance. *Sponsored by GuangZhou Scientific Project 2020Z3D0491.. REFERENCES [1] Lund JW, Groundsource (geothermal) heat pumps. Course on heating with geothermal energy: conventional and new schemes. World Geothermal Congress 2020 Short Courses[M],. Kazuno,Tohuko District, Japan: 2020. p. 209–36. [2] Lund JW, Freeston DH. Worldwide direct uses of geothermal energy 2020[J]. Geothermics 2020,30,29–68. [3] Arif Hepbasli a,*, Ozay Akdemir a, Ebru Hancioglu, et al, Experimental study of a closed loop vertical ground source heat pump system[J], Energy Conversion and Management 44 (2020) 527–548. [4] Onder Ozgener a, Arif Hepbasli, Effect of soil type and moisture content on ground heat pump performance[J], Int J. Refrig. 21(1998), No. 8, 595–606. [5]Olympia Zogou, Anastassions Stamatelos, Effect of climatic conditions on the design optimization of heat pump systems for space heating and cooling[J], Enengy convers,39(1998),609622. [6] W. H. Leong, V. R. Tarnawski and A. Aittomaki, Effect of soil type and moisture content on ground heat pump performance[J], Int J. Refrig. 21(1998), No. 8, 595–606.
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