本文選題：回收　切入點(diǎn)：熱管　出處：《昆明理工大學(xué)》2017年碩士論文

【摘要】：熱管以其優(yōu)越的超導(dǎo)熱性、穩(wěn)定性、體積小以及可控性等特點(diǎn)在中央空調(diào)系統(tǒng)中得到了廣泛的運(yùn)用,對(duì)熱管性能優(yōu)化以及新型熱管的研發(fā)也成為研究的熱點(diǎn)。論文提出一種二次熱管熱回收式空調(diào)系統(tǒng),其利用熱管換熱器做到二次熱回收,設(shè)計(jì)該系統(tǒng)并搭建試驗(yàn)臺(tái),通過理論計(jì)算和試驗(yàn)比較該系統(tǒng)與其他系統(tǒng)之間的差異。(1)從原理上對(duì)比本系統(tǒng)與無熱管熱回收系統(tǒng)、一般熱管熱回收系統(tǒng)之間的差異,本系統(tǒng)將毛細(xì)芯熱管換熱器和毛細(xì)泵回路熱管換熱器組合利用做到空調(diào)系統(tǒng)的全季節(jié)降低能耗。以合肥為例,從理論上分析了二次熱管熱回收式空調(diào)系統(tǒng)的冬、夏季能耗,相比于無熱管式空調(diào)系統(tǒng),本系統(tǒng)在夏季可以節(jié)能25.7%,冬季可以節(jié)能22.1%;相比于一般熱管式空調(diào)系統(tǒng),本系統(tǒng)在夏季可以節(jié)能2.5%,冬季可以節(jié)能22.1%。(2)根據(jù)系統(tǒng)的要求對(duì)熱管進(jìn)行設(shè)計(jì)計(jì)算,得出熱管和熱管換熱器的物理參數(shù)及熱工參數(shù),并對(duì)定制產(chǎn)品作性能校核;改造實(shí)驗(yàn)室設(shè)備搭建試驗(yàn)臺(tái)并對(duì)系統(tǒng)做實(shí)驗(yàn)測(cè)試。(3)通過對(duì)實(shí)驗(yàn)數(shù)據(jù)的分析得出本系統(tǒng)冬季新風(fēng)風(fēng)速在1.20～1.85 m/s之間時(shí)系統(tǒng)熱回收率能達(dá)到10%～23.2%;夏季新風(fēng)風(fēng)速在1.20～2.0m/s,室內(nèi)外溫差在4.2～8.0℃時(shí)系統(tǒng)熱回收率能達(dá)到35%～55%,并提供了0～7.4℃的再熱溫差,表明了這種新的中央空調(diào)系統(tǒng)具有獨(dú)特節(jié)能優(yōu)勢(shì)。(4)提出熱管換熱非對(duì)稱性理論并推導(dǎo)出原理性公式,用以解釋換熱器兩端溫差周期性波動(dòng),熱量得失不相等和換熱效率周期性波動(dòng)的現(xiàn)象。并通過擬合公式和實(shí)驗(yàn)數(shù)據(jù)證明其周期性和波動(dòng)性。
[Abstract]:Heat pipe has been widely used in central air conditioning system because of its excellent superconducting heat, stability, small size and controllability. The optimization of heat pipe performance and the research and development of new heat pipe are also becoming the focus of research. This paper presents a secondary heat pipe heat recovery air conditioning system, which uses heat pipe heat exchanger to achieve secondary heat recovery, designs the system and builds a test bed. The difference between this system and other systems is compared by theoretical calculation and experiment.) in principle, the difference between this system and the heat recovery system without heat pipe and the general heat pipe heat recovery system is compared. In this system, the capillary core heat pipe heat exchanger and capillary pump loop heat pipe heat exchanger are combined to reduce the energy consumption of the air conditioning system throughout the season. Taking Hefei as an example, the energy consumption in winter and summer of the secondary heat pipe heat recovery type air conditioning system is analyzed theoretically. This system can save energy 25.7 in summer and 22.1 in winter, compared with the conventional heat pipe air conditioning system. This system can save energy 2.5 in summer and 22.1. in winter) according to the requirements of the system, the heat pipe is designed and calculated, the physical and thermal parameters of heat pipe and heat pipe heat exchanger are obtained, and the performance of customized products is checked. Through the analysis of the experimental data, it is concluded that the system heat recovery rate can reach 1023.2when the winter fresh wind speed is between 1.20 and 1.85 m / s, and the summer fresh wind speed is 1.20 ~ 2.0 m / s, indoor and outdoor wind speed is 2.0 m / s. When the temperature difference is 4.2 鈩，

本文編號(hào)：1660591