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

【摘要】：兩相熱壓縮機利用熱源驅(qū)動,通過活塞的往復(fù)運動引起兩相工質(zhì)在熱腔和冷腔中來回穿梭,伴隨氣液相變過程形成周期性的壓力波動。它采用低沸點工質(zhì),具有驅(qū)動溫差小、壓比大等突出優(yōu)點,可以利用低品位熱源,如廢熱、太陽能等。但是,關(guān)于兩相熱壓縮機的研究很少,對兩相熱壓縮機的具體運行機理尚不清楚。因此,本文以對兩相熱壓縮機的機理研究為目標,著重分析兩相熱壓縮機實驗臺的性能,并對其進行深入分析,主要內(nèi)容包括以下幾個方面： 1、基于低品位熱源兩相熱壓縮機的研制在分析研究兩相熱壓縮機原理的基礎(chǔ)上,自行設(shè)計了國內(nèi)首臺基于低品位熱源的兩相熱壓縮機,對其設(shè)計方法和設(shè)計過程進行了詳細介紹。 2、兩相熱壓縮機的初步實驗自行搭建了兩相熱壓縮機實驗臺并進行了初步實驗研究。分別在0.1Hz、0.2Hz和0.3Hz頻率運行下,均取得了5以上的壓比,加熱功率最高為120W,有利于對太陽能、廢熱等的低品位熱源的有效利用。 3、兩相熱壓縮機性能優(yōu)化為了進一步分析研究兩相熱壓縮機實驗臺的性能,對該實驗臺分別進行了頻率特性研究和冷卻方式研究,研究發(fā)現(xiàn),兩相熱壓縮機的運行頻率和冷卻方式均對其性能產(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)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH45

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本文編號：1492447