【摘要】：目前在我國建筑供熱制冷空調(diào)系統(tǒng)中直燃機(jī)是應(yīng)用形式之一,其應(yīng)用較為廣泛,尤其是在城市中。太陽能是可再生能源,其分布廣泛且應(yīng)用潛力巨大。雖然現(xiàn)在太陽能吸收式制冷技術(shù)越來越受到重視,但是因其存在連接形式及設(shè)備匹配等研究問題而實(shí)際應(yīng)用不多,特別是太陽能與直燃機(jī)的聯(lián)合應(yīng)用。本論文就針對(duì)太陽能與直燃機(jī)聯(lián)合制冷系統(tǒng)進(jìn)行了研究。在以熱力學(xué)分析為主而傳熱學(xué)及經(jīng)濟(jì)性分析為輔的基礎(chǔ)上,利用TRNSYS與e QUEST逐時(shí)能耗模擬軟件構(gòu)建了太陽能與直燃機(jī)聯(lián)合系統(tǒng)的模型,模擬并分析出影響該系統(tǒng)效率的主要因素,通過對(duì)主要因素的單因素敏感性分析及正交試驗(yàn)設(shè)計(jì)進(jìn)行優(yōu)化,最終得出了太陽能與直燃機(jī)聯(lián)合制冷系統(tǒng)在典型夏熱冬冷地區(qū)(長沙市)夏季運(yùn)行時(shí)的最佳組合工況,從而為建筑節(jié)能設(shè)計(jì)者、設(shè)備制造商及消費(fèi)者提供參考價(jià)值。首先,通過查閱大量的相關(guān)參考文獻(xiàn),對(duì)太陽能與直燃機(jī)聯(lián)合系統(tǒng)的形式進(jìn)行了研究并最終確定了系統(tǒng)的主要部件及其連接運(yùn)行方式。在此基礎(chǔ)上,對(duì)該系統(tǒng)進(jìn)行了能量分析,初步得出了影響太陽能與直燃機(jī)聯(lián)合系統(tǒng)效率的主要因素。其次,利用TRNSYS與eQUEST逐時(shí)能耗模擬軟件構(gòu)建了太陽能與直燃機(jī)聯(lián)合系統(tǒng)的模型并進(jìn)行了模擬分析。運(yùn)用單因素敏感性分析法計(jì)算出了三個(gè)影響系統(tǒng)效率因素的影響程度與敏感程度。最后,根據(jù)影響因素個(gè)數(shù)及取值設(shè)計(jì)了正交試驗(yàn)方案,進(jìn)行了25次模擬,以最少的試驗(yàn)次數(shù)獲得了合理的試驗(yàn)數(shù)據(jù),從而最終實(shí)現(xiàn)系統(tǒng)運(yùn)行優(yōu)化。本文研究的特色在于聯(lián)合使用建筑能耗模擬軟件TRNSYS與eQUEST構(gòu)建該系統(tǒng)模型,更加準(zhǔn)確的模擬并優(yōu)化得出在典型夏熱冬冷地區(qū)(長沙市,室外干球溫度為35.8℃、濕球溫度為27.7℃、相對(duì)濕度為75%)夏季供冷時(shí)的最佳運(yùn)行組合工況,即熱源溫度為85℃、冷卻水溫度為30℃、冷凍水溫度為13℃。在一定程度上,這個(gè)數(shù)據(jù)的得到對(duì)該地方及類似地區(qū)夏季供冷時(shí)利用太陽能與直燃機(jī)聯(lián)合制冷系統(tǒng)的運(yùn)行優(yōu)化起到了指導(dǎo)作用。
[Abstract]:At present, direct gas turbine is one of the application forms in building heating, refrigeration and air conditioning system in our country, and it is widely used, especially in cities. Solar energy is a renewable energy, which is widely distributed and has great application potential. Although solar absorption refrigeration technology has been paid more and more attention, there are few practical applications because of its connection form and equipment matching, especially the joint application of solar energy and direct gas turbine. In this paper, the combined refrigeration system of solar energy and direct gas turbine is studied. On the basis of thermodynamic analysis and economic analysis, the model of solar energy and direct gas turbine system is constructed by using TRNSYS and e QUEST hourly energy consumption simulation software. The main factors affecting the efficiency of the system are simulated and analyzed. The single factor sensitivity analysis and orthogonal experimental design of the main factors are optimized. Finally, the optimal combined working conditions of solar energy and direct gas turbine combined refrigeration system in summer operation in typical hot summer and cold winter area (Changsha City) are obtained, which can provide reference value for building energy saving designers, equipment manufacturers and consumers. First of all, by consulting a large number of relevant references, the form of the combined system of solar energy and direct gas turbine is studied, and the main components of the system and its connecting operation mode are finally determined. On this basis, the energy analysis of the system is carried out, and the main factors affecting the efficiency of the combined system of solar energy and direct gas turbine are obtained. Secondly, the model of solar energy and direct gas turbine is constructed by using TRNSYS and eQUEST hourly energy consumption simulation software, and the simulation analysis is carried out. The influence degree and sensitivity of three factors affecting the efficiency of the system are calculated by using the single factor sensitivity analysis method. Finally, according to the number and value of influencing factors, the orthogonal test scheme is designed, and 25 simulations are carried out, and the reasonable test data are obtained with the least number of tests, so as to realize the optimization of the operation of the system. The characteristic of this paper is that the system model is constructed by using the building energy consumption simulation software TRNSYS and eQUEST, and the optimal operating conditions are obtained in the typical summer and hot winter area (Changsha, outdoor dry ball temperature is 35.8 鈩，

本文編號(hào)：2505075