綜合利用低品位余熱與LNG冷能的復合循環(huán)系統(tǒng)
發(fā)布時間：2018-10-16 18:17
【摘要】：提出了一種可以實現(xiàn)低品位熱能與液化天然氣(LNG)冷能綜合利用的復合式循環(huán)系統(tǒng),以實現(xiàn)不同溫度區(qū)間的循環(huán)匹配及熱能梯級利用,并運用熱力學定律對循環(huán)系統(tǒng)各部分性能進行熱力性能分析,研究了復合循環(huán)系統(tǒng)各部分關鍵參數(shù)對系統(tǒng)性能的影響。結果表明: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】： 西安交通大學熱流科學與工程教育部重點實驗室;西安熱工研究院有限公司;
【基金】：國家重點基礎研究發(fā)展計劃(2013CB22b304) 國家自然科學基金青年基金(51106128) 教育部新世紀優(yōu)秀人才支持計劃(NCET-13-0462) 中央高�；究蒲袠I(yè)務費專項資金
【分類號】：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】： 西安交通大學熱流科學與工程教育部重點實驗室;西安熱工研究院有限公司;
【基金】：國家重點基礎研究發(fā)展計劃(2013CB22b304) 國家自然科學基金青年基金(51106128) 教育部新世紀優(yōu)秀人才支持計劃(NCET-13-0462) 中央高�；究蒲袠I(yè)務費專項資金
【分類號】：TM611.3
【參考文獻】
相關期刊論文 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];中國電機工程學報;2003年08期
【共引文獻】
相關期刊論文 前10條
1 韓巍,金紅光,林汝謀;LNG化學能與冷，
本文編號：2275226
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