本文選題：干式風機盤管 + 獨立新風系統(tǒng)�。� 參考：《南京師范大學》2015年碩士論文

【摘要】：傳統(tǒng)的風機盤管加新風空調(diào)系統(tǒng)存在熱濕耦合處理、難以適應(yīng)熱濕比的變化以及風機盤管濕工況運行等方面的問題,不僅能耗大而且會導(dǎo)致霉菌繁殖和傳播,影響室內(nèi)的空氣品質(zhì)。干式風機盤管結(jié)合獨立新風系統(tǒng)作為一種新的空調(diào)系統(tǒng)形式,其特點是將溫度濕度分開處理,有效避免了傳統(tǒng)空調(diào)系統(tǒng)存在的問題。目前,我國正在大力推廣綠色建筑理念,干式風機盤管結(jié)合獨立新風系統(tǒng)具有廣闊的應(yīng)用前景,但該空調(diào)系統(tǒng)在國內(nèi)的應(yīng)用不多。因此本文對干式風機盤管結(jié)合獨立新風系統(tǒng)應(yīng)用于辦公建筑的熱舒適性、節(jié)能性和經(jīng)濟性進行了研究。本文第一部分分析了干式風機盤管結(jié)合獨立新風系統(tǒng)的水系統(tǒng)形式和送風形式,并對新風系統(tǒng)和干式風機盤管系統(tǒng)的空氣處理過程做了簡要計算與分析。本文第二部分研究了干式風機盤管結(jié)合獨立新風系統(tǒng)應(yīng)用于辦公建筑的熱舒適性。采用Airpak軟件建立卡頂式和臥式暗裝干式風機盤管的辦公室模型,首先對新風系統(tǒng)采用不同送排風形式以及干式風機盤管采用不同送風速度、射流角度的氣流組織進行數(shù)值模擬,并從溫度場和速度場角度對不同工況的模擬結(jié)果進行對比分析,結(jié)果表明：一、對于這兩種形式的干式風機盤管,采用上送下回的送排風形式時熱舒適性最好；二、卡頂式的送風速度為2m/s、射流角度為30°時,熱舒適性最好,而臥式暗裝的最佳送風速度則是1.5m/s。接著將以上兩種系統(tǒng)和傳統(tǒng)風機盤管加新風系統(tǒng)的氣流組織進行對比分析,結(jié)果表明：卡頂式干式風機盤管結(jié)合獨立新風系統(tǒng)的熱舒適性最佳。本文第三部分在熱舒適性研究的基礎(chǔ)上,進一步研究干式風機盤管結(jié)合獨立新風系統(tǒng)的節(jié)能性和經(jīng)濟性。首先采用DeST軟件計算建筑各項全年逐時負荷,并對干式風機盤管結(jié)合獨立新風系統(tǒng)和傳統(tǒng)風機盤管加新風系統(tǒng)的主要設(shè)備進行選型。接著建立空調(diào)系統(tǒng)能耗計算模型,對兩種空調(diào)系統(tǒng)的全年運行能耗進行計算分析,結(jié)果表明：干式風機盤管結(jié)合獨立新風系統(tǒng)的全年能耗比傳統(tǒng)風機盤管加新風系統(tǒng)的節(jié)省9.9%。其次,在能耗分析的基礎(chǔ)上,建立初投資計算模型,對兩者的初投資和全年運行費用進行了計算,并采用靜態(tài)經(jīng)濟評價方法和動態(tài)經(jīng)濟評價方法對干式風機盤管結(jié)合獨立新風系統(tǒng)進行評價分析,結(jié)果表明：干式風機盤管結(jié)合獨立新風系統(tǒng)的初投資較高,投資回收年限較長,但隨著應(yīng)用普及,其優(yōu)勢會表現(xiàn)出來。通過對干式風機盤管結(jié)合獨立新風系統(tǒng)應(yīng)用于辦公建筑熱舒適性、節(jié)能性和經(jīng)濟性的研究,為其在國內(nèi)的推廣應(yīng)用提供一些參考與建議。
[Abstract]:The traditional Fan-Coil Unit and fresh Air conditioning system has the heat and humidity coupling treatment, which is difficult to adapt to the change of the ratio of heat to humidity and to the operation of the Fan-Coil Unit under wet conditions. It not only consumes energy but also leads to the propagation and propagation of mold.Affect indoor air quality.As a new type of air conditioning system, dry fan coil unit combined with independent fresh air system is characterized by the separation of temperature and humidity, which effectively avoids the problems existing in the traditional air conditioning system.At present, China is vigorously promoting the concept of green building, dry fan coil unit combined with independent fresh air system has a broad application prospects, but the air conditioning system in China is not many applications.In this paper, the thermal comfort, energy saving and economy of dry fan coil unit combined with independent fresh air system in office buildings are studied.In the first part of this paper, the water system and the air supply form of the dry fan coil unit combined with independent fresh air system are analyzed, and the air treatment process of the fresh air system and the dry fan coil system are calculated and analyzed briefly.In the second part of this paper, the thermal comfort of dry fan coil unit combined with independent fresh air system in office buildings is studied.The Airpak software is used to establish the office model of the dry fan coils installed in the top and horizontal style. Firstly, the airflow organization of the fresh air system with different air supply and exhaust air and the dry fan coil unit with different air supply speed and jet angle is numerically simulated.The simulation results of different working conditions are compared and analyzed from the point of view of temperature field and velocity field. The results show that: first, for these two types of dry fan coil units, the thermal comfort is the best when the upper and lower return air supply is adopted; second,The thermal comfort is the best when the velocity of air supply is 2 m / s and the angle of jet is 30 擄, while the best velocity of air supply is 1.5 m / s when the air supply speed of horizontal concealed installation is 1.5 m / s.Then the air distribution of the two systems is compared with that of the traditional Fan-Coil Unit plus fresh Air system. The results show that the thermal comfort of the Fan-Coil Unit combined with the independent fresh Air system is the best.In the third part of this paper, based on the research of thermal comfort, the energy saving and economy of dry fan coil combined with independent fresh air system are further studied.Firstly, the hourly load of buildings is calculated by DeST software, and the main equipment of dry fan coil unit combined with independent fresh air system and traditional fan coil unit plus fresh air system is selected.Then the energy consumption calculation model of air conditioning system is established, and the annual energy consumption of two air conditioning systems is calculated and analyzed. The results show that the annual energy consumption of dry fan coil unit combined with independent fresh air system is 9. 9% less than that of traditional fan coil plus fresh air system.Secondly, on the basis of energy consumption analysis, the calculation model of initial investment is established, and the initial investment and annual operating cost are calculated.The static economic evaluation method and dynamic economic evaluation method are used to evaluate and analyze the dry fan coil unit combined with independent fresh air system. The results show that the initial investment of dry fan coil unit combined with independent fresh air system is higher and the investment recovery period is longer.But with the popularity of the application, its advantages will be displayed.Through the research on thermal comfort, energy saving and economy of office buildings with dry fan coil unit combined with independent fresh air system, some references and suggestions are provided for its popularization and application in China.
【學位授予單位】：南京師范大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU831

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本文編號：1743315