發(fā)布時(shí)間：2018-07-08 18:01

  本文選題：燒結(jié)型表面多孔管 + 翅片管�。� 參考：《華東理工大學(xué)》2015年碩士論文

【摘要】：采用高效傳熱管可顯著提高制冷系統(tǒng)中能源的利用效率。本文制備了燒結(jié)型表面多孔管和翅片管兩種形式的高效管,對其結(jié)構(gòu)參數(shù)進(jìn)行了表征。燒結(jié)型表面多孔管的力學(xué)性能和工藝性能均符合相應(yīng)的標(biāo)準(zhǔn),滿足空調(diào)系統(tǒng)中的應(yīng)用要求。以R134a為介質(zhì),通過單管實(shí)驗(yàn)臺研究了多個(gè)制冷工況下,燒結(jié)型表面多孔管、翅片管和光管的蒸發(fā)傳熱特性。試驗(yàn)結(jié)果表明,在各個(gè)工況下,燒結(jié)型表面多孔管的管外傳熱系數(shù)和總傳熱系數(shù)均優(yōu)于光管及翅片管,管外傳熱系數(shù)相比光管提高了8倍,相比翅片管提高了1倍。建立了兩種高效管的熱流密度q和管外傳熱系數(shù)ho之間的傳熱關(guān)聯(lián)式,具有較好的工程應(yīng)用價(jià)值。燒結(jié)型表面多孔管相比于制冷系統(tǒng)中廣泛使用的翅片管,具有更優(yōu)的傳熱性能,可以進(jìn)一步實(shí)現(xiàn)高效化和緊湊化,在制冷領(lǐng)域中具有廣闊的應(yīng)用前景。
[Abstract]:The efficiency of energy utilization in refrigeration system can be improved by using high efficiency heat transfer tube. In this paper, sintered surface porous tubes and finned tubes were prepared and their structural parameters were characterized. The mechanical and technological properties of the sintered surface porous tube meet the requirements of air conditioning system. The evaporative heat transfer characteristics of sintered surface porous tube, finned tube and light tube under several refrigeration conditions were studied by using R134a as the medium. The experimental results show that the external heat transfer coefficient and total heat transfer coefficient of the sintered surface porous tube are better than those of the light tube and the finned tube under various working conditions. The heat transfer coefficient outside the tube is 8 times higher than that of the light tube, and the heat transfer coefficient is 1 times higher than that of the finned tube. The heat transfer correlation between heat flux Q and heat transfer coefficient ho of two high efficiency tubes is established, which has good engineering application value. Compared with the finned tube widely used in refrigeration system, the sintered surface porous tube has better heat transfer performance and can further achieve high efficiency and compactness. It has a broad application prospect in the field of refrigeration.
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TB611;TB657

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 曹慧佘;;水處理設(shè)備多孔管式分配裝置的設(shè)計(jì)計(jì)算(一)[J];電站輔機(jī);1984年02期

2 曹慧余;;水處理設(shè)備多孔管式分配裝置的設(shè)計(jì)計(jì)算(二)[J];電站輔機(jī);1984年03期

3 郝彤,顧;表面多孔管的研制[J];深冷技術(shù);1985年05期

4 張其濱,火時(shí)中;紫銅表面多孔管的研制[J];大連工學(xué)院學(xué)報(bào);1987年03期

5 劉文華;劉煥芳;黃興國;徐峰;;多孔管的壓力分布特性試驗(yàn)[J];水利水電科技進(jìn)展;2009年05期

6 夏文慧;馬偉斌;陳偉康;林麗英;王世平;;多孔管在溴化鋰吸收制冷噴淋式發(fā)生過程的試驗(yàn)研究[J];制冷;1992年01期

7 馬偉斌;夏文慧;陳偉康;林麗英;王世平;;表面多孔管用于溴化鋰制冷沉浸式發(fā)生器的性能研究[J];制冷;1992年03期

8 陳水O，

本文編號：2108258