本文關(guān)鍵詞：載冷劑無相變換熱LNG重卡冷能利用空調(diào)特性研究　出處：《中原工學(xué)院》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 液化天然氣(LNG) 冷能利用 無相變換熱 重卡空調(diào) 系統(tǒng)模擬 靜態(tài)實(shí)驗(yàn)

【摘要】：近年來,大氣污染日益嚴(yán)重,霧霾肆虐、能源短缺等問題嚴(yán)重困擾著人們的日常生活。LNG(Liquefied Natural Gas)集儲(chǔ)運(yùn)空間小、熱量大、性能好、費(fèi)用低等多種優(yōu)點(diǎn)于一身,逐漸發(fā)揮其獨(dú)特優(yōu)勢(shì)。LNG作為車用燃料有經(jīng)濟(jì)、安全、環(huán)保三大優(yōu)勢(shì),其最終被利用時(shí)往往是氣態(tài),汽化過程釋放大量冷量,約為830-860k J/kg。本文在文獻(xiàn)綜述的基礎(chǔ)上,闡述了LNG產(chǎn)業(yè)發(fā)展現(xiàn)狀,介紹了LNG冷能的多種回收利用方式及各自對(duì)應(yīng)的溫區(qū),對(duì)比了其優(yōu)缺點(diǎn),并對(duì)我國(guó)LNG產(chǎn)業(yè)發(fā)展前景及現(xiàn)今國(guó)內(nèi)LNG冷能利用發(fā)展項(xiàng)目進(jìn)行了較為詳盡的分析。針對(duì)LNG重卡一方面需要將LNG汽化后進(jìn)入發(fā)動(dòng)機(jī)燃燒,另一方面駕駛空間又存在制冷需求,本文擬將LNG冷能與汽車空調(diào)相結(jié)合,使LNG汽化產(chǎn)生的冷量供應(yīng)駕駛室使用。通過對(duì)比經(jīng)驗(yàn)估算法得到的駕駛室冷負(fù)荷及編程軟件EES理論計(jì)算出的LNG可釋放總冷量,確定了系統(tǒng)的可行性。該系統(tǒng)不僅可避免傳統(tǒng)空調(diào)造成的能源消耗,而且可有效回收LNG釋放的冷量,符合我國(guó)節(jié)能減排戰(zhàn)略。本文在進(jìn)行理論分析的基礎(chǔ)上,選取適用于低溫冷量提取的HNZ1型載冷劑,設(shè)計(jì)出載冷劑無相變換熱LNG重卡冷能利用空調(diào)系統(tǒng)。運(yùn)用軟件Aspen plus模擬系統(tǒng)流程,結(jié)果顯示,在設(shè)定工況參數(shù)下,空調(diào)制冷量為3.704 k W,滿足系統(tǒng)制冷要求,同時(shí),蓄冷器每小時(shí)可蓄存冷量0.41 k W,可滿足多工況下空調(diào)系統(tǒng)的正常運(yùn)行�；诖�,搭建了LNG冷能回收空調(diào)系統(tǒng)實(shí)驗(yàn)臺(tái),并進(jìn)行了靜態(tài)實(shí)驗(yàn),實(shí)驗(yàn)結(jié)果表明,該系統(tǒng)運(yùn)行良好,制冷迅速,且能夠滿足駕駛室冷量需求,為相關(guān)項(xiàng)目的實(shí)施提供了參考依據(jù)。
[Abstract]:In recent years, the increasingly serious air pollution, haze raging, the problem of energy shortage and serious problems with people's daily life.LNG (Liquefied Natural Gas) in storage space is small, heat, good performance, low cost and many other advantages in one, gradually play its unique advantages of.LNG as a vehicle fuel economy, safety, environmental protection three the big advantage, which was eventually used is often a lot of cold gas, the release rate of vaporization process is about 830-860k J/kg., based on the literature review, describes the current development of LNG industry, introduces the temperature variety of LNG cold energy recovery and utilization respectively, compared the advantages and disadvantages, and the development of the prospect of LNG industry in China and the cold energy of LNG for a more detailed analysis using the development project. On the one hand needs to be LNG LNG heavy truck after vaporization to engine combustion, on the other hand, driving space and refrigeration Needs, this paper will combine with the cold energy of LNG automotive air conditioning, cold room supply driving LNG vaporization generated using empirical estimation. Through the comparison of the cab and cooling load of EES programming software theory method to get the calculated LNG can release the total cooling capacity, determine the feasibility of the system. The system can not only avoid the traditional air conditioning energy consumption caused by cold, and can effectively recycle LNG release, in line with the strategic energy saving and emission reduction in China. In this paper, on the basis of theoretical analysis, select suitable HNZ1 in cold extraction of refrigerant, design a refrigerant without phase change heat LNG heavy cold energy utilization of the air conditioning system. The simulation system the process, using the software of Aspen plus showed that in the setting of operating parameters, air-conditioning cooling capacity of 3.704 K W, to meet the cooling requirements, at the same time, cold storage per hour storage cooling capacity of 0.41 K W, which can meet the conditions of the air conditioning system Based on this, a LNG cold energy recovery air conditioning system experimental platform is built, and a static experiment is carried out. The experimental results show that the system runs well, the refrigeration is fast, and it can meet the demand of the cab cooling capacity, which provides a reference for the implementation of related projects.

【學(xué)位授予單位】：中原工學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU831

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