【摘要】：能源為經(jīng)濟發(fā)展提供動力，但是由于各種因素，能源的發(fā)展滯后于經(jīng)濟的發(fā)展。近些年，中國國民生產(chǎn)總值在不斷的增長，而能源的增長卻是國民生產(chǎn)總值的1/3，這樣的形勢下就要求我們必須節(jié)能。社會總能耗中建筑能耗所占的比例較大，而暖通空調(diào)能耗是建筑能耗中的大戶，所以空調(diào)系統(tǒng)節(jié)能是降低建筑能耗的關(guān)鍵。暖通空調(diào)的目的是為人們提供舒適的生活和生產(chǎn)室內(nèi)環(huán)境，這需要消耗能源來實現(xiàn)，但是空調(diào)開啟時間較集中且峰谷壓力差巨大，這需要高效、合理的利用能源，切實有效的減少電網(wǎng)負(fù)荷壓力差，同時也成為人們越來越關(guān)注的趨勢。在這樣的情況下，節(jié)能環(huán)保的地源熱泵系統(tǒng)和水蓄能系統(tǒng)成為眾學(xué)者研究和應(yīng)用的對象，兩者的優(yōu)勢結(jié)合必然能夠達(dá)到很好節(jié)能且環(huán)保的效果。 本文選取武漢地區(qū)某一辦公樓建筑為對象，利用DeST軟件模擬建筑全年動態(tài)冷熱負(fù)荷。以此類型建筑負(fù)荷特點和武漢地區(qū)電價結(jié)構(gòu)為依據(jù)，通過選擇蓄冷槽的大小，得到地源熱泵與水蓄能槽的建筑負(fù)荷分配比。利用模擬軟件模擬不同分配比熱泵機組的性能特性，并對不同分配比的系統(tǒng)進(jìn)行經(jīng)濟性分析，確定適合復(fù)合系統(tǒng)最優(yōu)的負(fù)荷分配比例。 研究結(jié)果表明，地源熱泵與水蓄能復(fù)合，，能夠有效的緩解電網(wǎng)峰值供電壓力，節(jié)約系統(tǒng)的運行費用。復(fù)合式系統(tǒng)能減少熱泵主機的裝機容量和地埋管長度。在各個方案熱泵機組性能良好的基礎(chǔ)下，通過經(jīng)濟性分析，能夠得出最優(yōu)的負(fù)荷分配比。 本文著重找出地源熱泵結(jié)合水蓄能技術(shù)在辦公建筑中所承擔(dān)的負(fù)荷分配比，在何種比例下經(jīng)濟性最優(yōu)，可以為其進(jìn)一步的推廣應(yīng)用提供一定的參考。
[Abstract]:Energy provides power for economic development, but the development of energy lags behind economic development due to various factors. In recent years, China's gross national product has been growing, and the growth of energy is a third of its gross national product, which requires us to save energy. Building energy consumption accounts for a large proportion of total energy consumption in society, and HVAC energy consumption is a large household in building energy consumption, so energy saving of air conditioning system is the key to reduce building energy consumption. The purpose of HVAC is to provide people with comfortable living and production indoor environment, which needs to consume energy to achieve, but the opening time of HVAC is more concentrated and the pressure difference between peak and valley is huge, which requires efficient and rational use of energy. Effective reduction of power grid load pressure difference, but also become more and more concerned about the trend. In this case, the energy saving and environmental protection ground source heat pump system and the water energy storage system become the research and application object of many scholars, the combination of the advantages of the two is bound to achieve a very good energy saving and environmental protection effect. In this paper, a certain office building in Wuhan area is selected as the object, and the dynamic cooling and heat load of the building is simulated by DeST software. Based on the characteristics of this type of building load and the structure of electricity price in Wuhan area, the ratio of building load distribution between ground source heat pump and water storage tank is obtained by selecting the size of storage tank. The simulation software is used to simulate the performance characteristics of heat pump units with different distribution ratios, and the economic analysis of the systems with different distribution ratios is carried out to determine the optimal load distribution ratio for the composite system. The results show that the combination of ground-source heat pump and water storage can effectively relieve the peak power supply pressure and save the operating cost of the system. The composite system can reduce the installed capacity of heat pump mainframe and the length of buried pipe. On the basis of good performance of each scheme, the optimal load distribution ratio can be obtained by economic analysis. This paper focuses on finding out the load distribution ratio of ground-source heat pump combined with water storage technology in office buildings and the optimal economic ratio under which proportion, which can provide a certain reference for its further promotion and application.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU83

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