綜合利用低品位余熱與LNG冷能的復(fù)合循環(huán)系統(tǒng)
發(fā)布時(shí)間:2018-10-16 18:17
【摘要】:提出了一種可以實(shí)現(xiàn)低品位熱能與液化天然氣(LNG)冷能綜合利用的復(fù)合式循環(huán)系統(tǒng),以實(shí)現(xiàn)不同溫度區(qū)間的循環(huán)匹配及熱能梯級(jí)利用,并運(yùn)用熱力學(xué)定律對(duì)循環(huán)系統(tǒng)各部分性能進(jìn)行熱力性能分析,研究了復(fù)合循環(huán)系統(tǒng)各部分關(guān)鍵參數(shù)對(duì)系統(tǒng)性能的影響。結(jié)果表明:在給定工作條件下,系統(tǒng)的凈發(fā)電效率和可用能效率分別達(dá)到了39.4%和47.33%;系統(tǒng)性能受循環(huán)工質(zhì)狀態(tài)參數(shù)和質(zhì)量流量變化的共同影響,兩者的綜合作用效果決定了系統(tǒng)的優(yōu)化方向。
[Abstract]:A compound cycle system which can realize the comprehensive utilization of low grade thermal energy and liquefied natural gas (LNG) (LNG) cold energy is proposed to realize cycle matching and thermal cascade utilization in different temperature ranges. The thermodynamic performance of each part of the circulatory system is analyzed by using the thermodynamic law, and the influence of the key parameters of each part of the composite cycle system on the performance of the system is studied. The results show that the net generation efficiency and available energy efficiency of the system are 39.4% and 47.33% respectively under given working conditions, and the system performance is affected by the variation of circulating fluid state parameters and mass flow rate. The comprehensive effect of both determines the optimization direction of the system.
【作者單位】: 西安交通大學(xué)熱流科學(xué)與工程教育部重點(diǎn)實(shí)驗(yàn)室;西安熱工研究院有限公司;
【基金】:國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(2013CB22b304) 國(guó)家自然科學(xué)基金青年基金(51106128) 教育部新世紀(jì)優(yōu)秀人才支持計(jì)劃(NCET-13-0462) 中央高;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金
【分類號(hào)】:TM611.3
[Abstract]:A compound cycle system which can realize the comprehensive utilization of low grade thermal energy and liquefied natural gas (LNG) (LNG) cold energy is proposed to realize cycle matching and thermal cascade utilization in different temperature ranges. The thermodynamic performance of each part of the circulatory system is analyzed by using the thermodynamic law, and the influence of the key parameters of each part of the composite cycle system on the performance of the system is studied. The results show that the net generation efficiency and available energy efficiency of the system are 39.4% and 47.33% respectively under given working conditions, and the system performance is affected by the variation of circulating fluid state parameters and mass flow rate. The comprehensive effect of both determines the optimization direction of the system.
【作者單位】: 西安交通大學(xué)熱流科學(xué)與工程教育部重點(diǎn)實(shí)驗(yàn)室;西安熱工研究院有限公司;
【基金】:國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(2013CB22b304) 國(guó)家自然科學(xué)基金青年基金(51106128) 教育部新世紀(jì)優(yōu)秀人才支持計(jì)劃(NCET-13-0462) 中央高;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金
【分類號(hào)】:TM611.3
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 王威,蔡睿賢,張娜;利用LNG冷火用的CO_2Rankine循環(huán)方案探析[J];中國(guó)電機(jī)工程學(xué)報(bào);2003年08期
【共引文獻(xiàn)】
相關(guān)期刊論文 前10條
1 韓巍,金紅光,林汝謀;LNG化學(xué)能與冷,
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