【摘要】：隨著科學技術的不斷發(fā)展，人們對冷藏、冷凍技術的要求也不斷提高，半導體制冷設備由于具有體積小、安裝方便、綠色環(huán)保等優(yōu)點得到了廣泛應用。近些年來，各國學者對半導體制冷技術的研究也越來越深，但研究半導體制冷性能主要集中在半導體制冷的熱力學、制冷材料和制冷片的控制方案等。對如何測量半導體制冷片制冷量和制冷效率的研究較少。 本論文對半導體制冷技術的基本原理及半導體制冷器的工作原理進行理論分析，為了研究半導體制冷片的制冷效率，本文對現(xiàn)有的半導體制冷片評估系統(tǒng)進行了改進，針對現(xiàn)有的半導體制冷片評估系統(tǒng)：評估效率低、評估系統(tǒng)誤差大、測試過程繁雜的問題，，設計了一套基于MSP430F149單片機控制的絕熱補償半導體制冷片評估系統(tǒng)。系統(tǒng)采用Pt100鉑金屬電阻對制冷片冷端和熱端的溫度進行測量，檢測精度和檢測實時性都非常好。同時，為了降低系統(tǒng)穩(wěn)態(tài)誤差、減少干燥劑的更換頻率、提高檢測效率，加熱片的功率調(diào)整采用模糊-PID算法實現(xiàn)。 評測過程中，系統(tǒng)將干燥的空氣作為熱交換介質(zhì)，采用將加熱片產(chǎn)生的熱量補償制冷片冷端從熱交換器中吸收的熱量，從而達到熱交換器的進風口和出風口的溫度不變；加熱片和制冷片的冷端均被流動的空氣所包圍，大大降低了傳統(tǒng)測量中，加熱片向外界傳熱造成的制冷量計算不準確問題。該控制方法相對于傳統(tǒng)的測量方法，有測量方法簡單、檢測時間短、測量精度高的優(yōu)點。
[Abstract]:With the development of science and technology, the requirement of refrigeration and refrigeration technology has been raised. Semiconductor refrigeration equipment has been widely used because of its advantages of small size, convenient installation and green environmental protection. In recent years, the research of semiconductor refrigeration technology has been more and more in-depth, but the study of semiconductor refrigeration performance is mainly focused on the thermodynamics of semiconductor refrigeration, refrigeration materials and refrigeration film control schemes. There is little research on how to measure the cooling capacity and refrigeration efficiency of semiconductor refrigerators. In this paper, the basic principle of semiconductor refrigeration technology and the working principle of semiconductor cooler are analyzed theoretically. In order to study the refrigeration efficiency of semiconductor refrigeration sheet, the existing evaluation system of semiconductor refrigeration sheet is improved in this paper. Aiming at the problems of the existing evaluation system of semiconductor refrigeration sheet, such as low evaluation efficiency, large error of evaluation system and complicated testing process, a set of adiabatic compensation semiconductor refrigeration chip evaluation system based on MSP430F149 microcontroller is designed. The system uses Pt100 platinum resistor to measure the temperature at the cold and hot ends of the chiller, and the detection accuracy and real time are very good. At the same time, in order to reduce the steady-state error of the system, reduce the replacement frequency of the desiccant and improve the detection efficiency, the fuzzy-PID algorithm is used to adjust the power of the heating plate. In the evaluation process, the dry air is used as the heat exchange medium, and the heat produced by the heating sheet is used to compensate the heat absorbed from the heat exchanger at the cold end of the cooling plate, so that the temperature of the inlet and outlet of the heat exchanger is invariable. The cold end of the heating plate and the cooling plate are surrounded by the flowing air, which greatly reduces the inaccurate calculation of the refrigerating capacity caused by the heat transfer of the heating plate to the outside world in the traditional measurement. Compared with the traditional measurement method, this control method has the advantages of simple measurement method, short detection time and high measurement accuracy.
【學位授予單位】：湖南科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TB657

【參考文獻】

相關期刊論文 前10條

1 才勇智,孟慶新;淺談半導體致冷器在功放系統(tǒng)中的應用[J];本溪冶金高等�？茖W校學報;2002年02期

2 楊旭,馬靜,張新武,王兆安;電力電子裝置強制風冷散熱方式的研究[J];電力電子技術;2000年04期

3 譚冠蘭;王建新;;基于UART8250的PC機與MCU多機串行通信的研究[J];電腦知識與技術;2008年16期

4 劉昆;范少泉;;參數(shù)自調(diào)整模糊控制在異步電動機矢量控制系統(tǒng)中的應用[J];電氣傳動;2006年04期

5 張曉芳;鐘建新;楊穗;;水冷式半導體冰箱制冷性能的研究[J];工程設計學報;2012年02期

6 程明福;吳才章;;基于太陽能供電的半導體制冷系統(tǒng)設計[J];電子設計工程;2012年01期

7 王懷光;范紅波;李國璋;;太陽能半導體制冷裝置設計與性能分析[J];低溫工程;2013年01期

8 秦熠,胡旭曉,顧志樺,李家賡,雷進波;基于半導體致冷器的熱阻控制及其研究[J];機床與液壓;2005年03期

9 高薪蕙;鄧忠民;王靜濤;;TEC結構的三維非線性瞬態(tài)溫度場分析[J];計算力學學報;2012年01期

10 胡建鄭;淺議半導體制冷器[J];家用電器;2001年08期

相關博士學位論文 前1條

1 施長治;多晶硅納米薄膜在壓阻傳感器應用中的關鍵技術研究[D];哈爾濱工業(yè)大學;2011年

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