本文關鍵詞： 熱聲熱機 有限時間熱力學 新目標函數(shù) 熱力學循環(huán) 優(yōu)化　出處：《武漢工程大學》2014年碩士論文　論文類型：學位論文

【摘要】：熱聲熱機是基于熱聲效應原理的一種全新的能源轉換機械，由于其結構組成簡單、使用壽命長、可靠性能高、能夠利用低品質的能源實現(xiàn)廢熱的再利用以及工質采用的是對環(huán)境無污染，無損害的綠色環(huán)保氣體，因此倍受學術界和工業(yè)界的關注。目前熱聲熱機已成為國內、外一個研究熱點。 本文是在前人的研究基礎之上，，將效率代替效率作為研究對象，運用有限時間熱力學的方法，引入新的目標函數(shù)，對熱聲熱機的輸出聲功率（或制冷率）和效率之間的關系進行優(yōu)化研究，并且分析了各種外在、內在的影響因子對此優(yōu)化關系的影響，以便對熱聲熱機的理論和實際研究設計提供參考依據(jù)。本文主要的研究工作包括如下幾部分： 1、分析與研究熱聲發(fā)動機的熱力學性能。研究內容主要分為兩部分，一是通過熱聲理論建立的熱聲熱機微熱力學循環(huán)，引入新的Z目標函數(shù)，運用有限時間熱力學的方法，對內可逆即理想情況下和不可逆情況下熱聲發(fā)動機熱聲微熱力循環(huán)的輸出聲功率和效率進行了優(yōu)化分析研究；二是討論了復指數(shù)傳熱規(guī)律下不可逆熱聲發(fā)動機的熱力學循環(huán)，同樣引入新的Z目標函數(shù)，運用有限時間熱力學的方法對復指數(shù)傳熱規(guī)律下熱聲發(fā)動機的輸出聲功率和效率進行了優(yōu)化分析研究。通過分析研究得出了熱聲發(fā)動機的輸出聲功率和效率均為同一中間變量的單值函數(shù)，并且存在一最優(yōu)的中間變量，使得熱聲發(fā)動機的輸出聲功率和效率最優(yōu)。 2、分析與研究了熱聲制冷機的熱力學性能。研究內容同熱聲發(fā)動機，對復指數(shù)傳熱規(guī)律下的不可逆熱聲制冷機的循環(huán)模型中的制冷率和效率進行了優(yōu)化分析研究。通過分析研究同樣得出了復指數(shù)傳熱規(guī)律下的不可逆熱聲制冷機的制冷率和效率也均為同一中間變量的單值函數(shù)，并且存在一最優(yōu)的中間變量，使得熱聲制冷機的制冷率和效率最優(yōu)。 3、介紹了吳治教授及其團隊設計和開發(fā)了一套人工智慧電腦輔助原動力廠設計軟件（CyclePad）。利用該設計軟件，通過圖文并茂的形式，簡單介紹了軟件的各項功能與應用，并成功的模擬出了熱聲發(fā)動機微熱力循環(huán)的理想循環(huán)Brayton-cycle。
[Abstract]:Thermoacoustic engine is a new energy conversion machine based on the principle of thermoacoustic effect, because of its simple structure, long service life and high reliability. Low quality energy can be used to achieve the reuse of waste heat and the use of working fluid is no pollution of the environment, no harm to the green gas. Therefore, it has attracted the attention of academia and industry. At present, thermoacoustic heat engine has become a research hotspot in China and abroad. In this paper, based on the previous studies, efficiency is taken as the object of study, and a new objective function is introduced by using the method of finite time thermodynamics. The relationship between the output acoustic power (or refrigeration rate) and the efficiency of thermoacoustic engine is optimized and the influence of various external and internal factors on the optimization relationship is analyzed. In order to provide a reference for the theoretical and practical research and design of thermoacoustic heat engine. The main research work of this paper includes the following parts: 1. The thermodynamics performance of thermoacoustic engine is analyzed and studied. The research is divided into two parts: one is the microthermodynamics cycle of thermoacoustic engine established by thermoacoustic theory, and the introduction of a new Z objective function. By using the finite time thermodynamics method, the output sound power and efficiency of thermoacoustic microthermal cycle of thermoacoustic engine under ideal and irreversible conditions are studied and optimized. Secondly, the thermodynamic cycle of irreversible thermoacoustic engine under the complex exponential heat transfer law is discussed, and a new Z objective function is also introduced. By using finite time thermodynamics, the output sound power and efficiency of thermoacoustic engine under the law of complex exponential heat transfer are optimized and studied. The results show that the output sound power and efficiency of thermoacoustic engine are as follows: 1. A single-valued function of the same intermediate variable. And there is an optimal intermediate variable, which makes the output sound power and efficiency of thermoacoustic engine optimal. 2Thermodynamic performance of thermoacoustic refrigerator is analyzed and studied. The refrigeration rate and efficiency in the cycle model of an irreversible thermoacoustic refrigerator under the complex exponential heat transfer law are studied and optimized. The irreversible thermoacoustic refrigerator under the complex exponential heat transfer law is also obtained through the analysis and study. The refrigeration rate and efficiency are also single-valued functions of the same intermediate variable. There is an optimal intermediate variable to optimize the refrigeration rate and efficiency of the thermoacoustic refrigerator. 3. Professor Wu Zhi and his team have designed and developed a set of artificial intelligence computer aided power plant design software, CyclePadn.Using this design software, through the form of picture and text. The functions and applications of the software are briefly introduced, and the ideal cycle Brayton-cycleof thermoacoustic engine microthermal cycle is successfully simulated.
【學位授予單位】：武漢工程大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TB65

【參考文獻】

相關期刊論文 前10條

1 馮仰浦,張肇剡,陳光明,鄭煒;熱聲制冷的實驗研究[J];低溫工程;1999年04期

2 闞緒獻;吳鋒;張曉青;;駐波熱聲熱機的最優(yōu)頻率特性[J];低溫工程;2008年04期

3 黃云,羅二倉,吳張華,戴巍,李曉明;高效室溫行波熱聲制冷機的研究(第二部分:電聲壓縮機驅動的行波熱聲制冷機的實驗研究)[J];低溫與超導;2004年03期

4 陳林根，孫豐瑞;關于不可逆卡諾循環(huán)[J];大學物理;1995年06期

5 嚴子浚;關于CA效率與有限時間熱力學的發(fā)展[J];大自然探索;1995年02期

6 高凡;劉迎文;何雅玲;黃競;;熱聲制冷機聲場中非線性效應[J];工程熱物理學報;2008年12期

7 闞緒獻;吳鋒;張曉青;丁國忠;;復雜傳熱規(guī)律下熱聲制冷機最優(yōu)性能[J];華中科技大學學報(自然科學版);2008年12期

8 羅二倉,黃云,戴巍,張泳,吳張華;高性能室溫行波熱聲制冷機[J];科學通報;2005年02期

9 陳林根,孫豐瑞,陳文振;能量系統(tǒng)有限時間熱力學的現(xiàn)狀和展望[J];力學進展;1992年04期

10 汪拓;吳鋒;費錦華;林杰;;實際熱聲微熱力學循環(huán)的特性研究[J];機械工程學報;2013年24期

相關博士學位論文 前2條

1 張春萍;熱聲核特性參數(shù)實驗研究及高頻微型熱聲實驗裝置的研制[D];華中科技大學;2011年

2 周剛;小型行波熱聲熱機系統(tǒng)的研究[D];華中科技大學;2007年

本文編號：1456135