文章編號: 中圖分類(lèi)號:TM611.3 文獻標識碼:A 學(xué)科分類(lèi)號:080702
冷熱電三聯(lián)供電廠(chǎng)等價(jià)電效率分析
武文杰1,李鹍2
(通用電氣(中國)研發(fā)開(kāi)發(fā)中心有限公司,上海 201203)
摘要:燃氣——蒸汽聯(lián)合循環(huán)冷熱電三聯(lián)供系統具有較高的能量利用率,已經(jīng)得到廣泛的應用,但目前缺乏客觀(guān)統一的效率定義。本文以熱力學(xué)第二定律為基礎,提出了冷熱電三聯(lián)供電廠(chǎng)等價(jià)電效率的概念,用于評估不同品位能量的系統效率。結合電廠(chǎng)實(shí)例,對比電廠(chǎng)效率的幾種不同定義,從而為冷熱電三聯(lián)供電廠(chǎng)設計和技術(shù)改進(jìn)提供參考。
關(guān)鍵詞:聯(lián)合循環(huán);冷熱電三聯(lián)供;等價(jià)電效率
Second Law Efficiency Analysis for CCHP
Power Plant
WU Wen-jie1, LI Kun2
(GE(China) Research and Development Center Co., Ltd,Shanghai 201203,China)
Abstract: CCHP(Combined Cooling Heating and Power) system has been widely used for higher efficiency although there’re no universal definition of plant efficiency. Based on the second law of thermodynamics, second law efficiency is proposed to evaluate the system efficiency from different energy. Comparing with other efficiency definition, it is helpful for design and technical optimization of CCHP power plant.
Key words: combined cycle; CCHP; second law efficiency
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