本文選題：斯特林發(fā)動(dòng)機(jī)　切入點(diǎn)：雙作用　出處：《華南理工大學(xué)》2014年碩士論文

【摘要】：化石燃料日益短缺，石油價(jià)格逐漸上漲，使用傳統(tǒng)燃料的熱機(jī)面臨著空前的能源危機(jī)。研究可以使用多種熱源的斯特林發(fā)動(dòng)機(jī)，在解決能源緊張和環(huán)境污染等問(wèn)題時(shí)具有特別重要的意義。近年來(lái)，以斯特林發(fā)動(dòng)機(jī)為核心裝置的熱電聯(lián)產(chǎn)系統(tǒng)在歐美發(fā)展迅速，但在國(guó)內(nèi)，對(duì)斯特林發(fā)動(dòng)機(jī)的研究還處于起步階段，對(duì)基于斯特林發(fā)動(dòng)機(jī)熱電聯(lián)產(chǎn)系統(tǒng)的研發(fā)更加匱乏。因此，非常有必要對(duì)斯特林發(fā)動(dòng)機(jī)的運(yùn)行進(jìn)行仿真模擬，設(shè)計(jì)研發(fā)以天然氣等為燃料的斯特林發(fā)動(dòng)機(jī)熱電聯(lián)產(chǎn)系統(tǒng)。 本課題研究了斯特林發(fā)動(dòng)機(jī)的四種循環(huán)分析方法，通過(guò)對(duì)比得出結(jié)論：實(shí)用等溫分析法能簡(jiǎn)單而又準(zhǔn)確地分析斯特林發(fā)動(dòng)機(jī)的各種工況，是目前初步估算斯特林發(fā)動(dòng)機(jī)功率和效率最合適的方法。 在實(shí)用等溫分析法的基礎(chǔ)上，考慮工質(zhì)在循環(huán)中的流阻損失以及各種熱損失，建立了一個(gè)能夠分析和計(jì)算四缸雙作用斯特林發(fā)動(dòng)機(jī)工作循環(huán)的模型，利用該模型，獲得了四個(gè)氣缸以及不同循環(huán)部分的各種運(yùn)行參數(shù)。 編寫(xiě)了一個(gè)能夠模擬四缸雙作用斯特林發(fā)動(dòng)機(jī)工作循環(huán)的程序，同時(shí)，應(yīng)用該程序?qū)ι虾｝R耀動(dòng)力技術(shù)有限公司研發(fā)的四缸雙作用斯特林發(fā)動(dòng)機(jī)進(jìn)行了仿真模擬，并考察了熱區(qū)冷區(qū)溫度比、循環(huán)壓力和死容積等參數(shù)對(duì)工作循環(huán)的影響。研究表明：在輸入熱量為161.939kW時(shí)，發(fā)動(dòng)機(jī)有效功率為51.379kW、輸出電功率為47.781kW、加熱器的熱容量為140.887kW、冷卻器的熱容量為83.257kW、發(fā)動(dòng)機(jī)有效效率為0.317、發(fā)電效率為0.295。 對(duì)上海齊耀動(dòng)力技術(shù)有限公司研發(fā)的四缸雙作用斯特林發(fā)動(dòng)機(jī)組進(jìn)行了實(shí)驗(yàn)測(cè)試，，并應(yīng)用仿真程序模擬出了對(duì)應(yīng)的值，結(jié)果顯示仿真模擬值和實(shí)驗(yàn)測(cè)試值比較接近。在此基礎(chǔ)上，充分發(fā)揮能量“梯級(jí)利用”的理念，設(shè)計(jì)了一個(gè)基于斯特林發(fā)動(dòng)機(jī)的熱電聯(lián)產(chǎn)系統(tǒng)。
[Abstract]:Fossil fuels are running short, oil prices are rising, and heat engines using traditional fuels are facing an unprecedented energy crisis. In recent years, the cogeneration system with Stirling engine as the core device has developed rapidly in Europe and America, but in domestic, The research of Stirling engine is still in its infancy, and the research and development of cogeneration system based on Stirling engine is more scarce. Therefore, it is very necessary to simulate the operation of Stirling engine. Design and development of Stirling engine cogeneration system based on natural gas and other fuels. In this paper, four cycle analysis methods of Stirling engine are studied, and the conclusion is drawn: the practical isothermal analysis method can analyze the various working conditions of Stirling engine simply and accurately. It is the most suitable method to estimate the power and efficiency of Stirling engine. Based on the practical isothermal analysis method and considering the flow resistance loss and various heat losses of the working fluid in the cycle, a model which can analyze and calculate the working cycle of a four-cylinder two-acting Stirling engine is established, and the model is used to analyze and calculate the working cycle of the four-cylinder two-acting Stirling engine. The operation parameters of four cylinders and different circulation parts are obtained. A program is developed to simulate the working cycle of a four-cylinder two-acting Stirling engine. At the same time, the four-cylinder double-acting Stirling engine developed by Shanghai Qiyao Power Technology Co., Ltd is simulated by the program. The effects of temperature ratio in the cold zone, cycle pressure and dead volume on the working cycle are investigated. The results show that when the input heat is 161.939kW, The effective power of engine is 51.379kW, the output power is 47.781kW, the heat capacity of heater is 140.887kW, the heat capacity of cooler is 83.257kW, the effective efficiency of engine is 0.317and the generating efficiency is 0.295. The four-cylinder two-acting Stirling engine set developed by Shanghai Qiyao Power Technology Co., Ltd was tested experimentally and the corresponding value was simulated by simulation program. The results show that the simulated value is close to the experimental value. On this basis, a cogeneration system based on Stirling engine is designed to give full play to the idea of "cascade utilization" of energy.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TM611;TK40

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