本文關(guān)鍵詞： 低品位熱源 氣液兩相 熱壓縮機(jī)　出處：《浙江大學(xué)》2012年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：兩相熱壓縮機(jī)利用熱源驅(qū)動(dòng),通過(guò)活塞的往復(fù)運(yùn)動(dòng)引起兩相工質(zhì)在熱腔和冷腔中來(lái)回穿梭,伴隨氣液相變過(guò)程形成周期性的壓力波動(dòng)。它采用低沸點(diǎn)工質(zhì),具有驅(qū)動(dòng)溫差小、壓比大等突出優(yōu)點(diǎn),可以利用低品位熱源,如廢熱、太陽(yáng)能等。但是,關(guān)于兩相熱壓縮機(jī)的研究很少,對(duì)兩相熱壓縮機(jī)的具體運(yùn)行機(jī)理尚不清楚。因此,本文以對(duì)兩相熱壓縮機(jī)的機(jī)理研究為目標(biāo),著重分析兩相熱壓縮機(jī)實(shí)驗(yàn)臺(tái)的性能,并對(duì)其進(jìn)行深入分析,主要內(nèi)容包括以下幾個(gè)方面： 1、基于低品位熱源兩相熱壓縮機(jī)的研制在分析研究?jī)上酂釅嚎s機(jī)原理的基礎(chǔ)上,自行設(shè)計(jì)了國(guó)內(nèi)首臺(tái)基于低品位熱源的兩相熱壓縮機(jī),對(duì)其設(shè)計(jì)方法和設(shè)計(jì)過(guò)程進(jìn)行了詳細(xì)介紹。 2、兩相熱壓縮機(jī)的初步實(shí)驗(yàn)自行搭建了兩相熱壓縮機(jī)實(shí)驗(yàn)臺(tái)并進(jìn)行了初步實(shí)驗(yàn)研究。分別在0.1Hz、0.2Hz和0.3Hz頻率運(yùn)行下,均取得了5以上的壓比,加熱功率最高為120W,有利于對(duì)太陽(yáng)能、廢熱等的低品位熱源的有效利用。 3、兩相熱壓縮機(jī)性能優(yōu)化為了進(jìn)一步分析研究?jī)上酂釅嚎s機(jī)實(shí)驗(yàn)臺(tái)的性能,對(duì)該實(shí)驗(yàn)臺(tái)分別進(jìn)行了頻率特性研究和冷卻方式研究,研究發(fā)現(xiàn),兩相熱壓縮機(jī)的運(yùn)行頻率和冷卻方式均對(duì)其性能產(chǎn)生顯著影響。
[Abstract]:The two-phase hot compressor is driven by heat source and the reciprocating motion of the piston causes the two-phase working fluid to shuttle back and forth between the hot and cold cavities with periodic pressure fluctuation in the gas-liquid phase transition process. With small driving temperature difference, high pressure ratio and other outstanding advantages, we can use low-grade heat sources, such as waste heat, solar energy, etc. However, there is little research on two-phase heat compressor. The specific operation mechanism of two-phase hot compressor is not clear. Therefore, this paper focuses on the analysis of the performance of the two-phase hot compressor test bench, and deeply analyzes the performance of the two-phase hot compressor. The main elements include the following: 1. The development of two-phase heat compressor based on low-grade heat source. On the basis of analyzing and studying the principle of two-phase heat compressor, the first two-phase heat compressor based on low-grade heat source in China was designed by itself. The design method and design process are introduced in detail. 2, the preliminary experiment of the two-phase thermal compressor was carried out and the preliminary experimental research was carried out at the frequency of 0.2Hz and 0.3Hz, respectively. The maximum heating power is 120W, which is beneficial to the effective utilization of low-grade heat sources such as solar energy and waste heat. In order to further analyze and study the performance of two-phase thermal compressor, the frequency characteristic and cooling mode of the experimental platform were studied respectively. The operating frequency and cooling mode of the two-phase thermal compressor have a significant effect on its performance.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH45

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