330MW冷热电联产机组热经济性分析Thermal economic analysis of a 330MW extraction-condensing steam unit
朱誉,李千军,冯永新,彭晓为,廖艳芬,马晓茜
摘要(Abstract):
某热电厂供热负荷为工业抽汽和民用采暖。在非采暖季节,热电厂的热负荷减小,使得机组煤耗增加,同时造成民用供热网管闲置。对此,将原供热机组改为冷热电联产机组。改后计算结果表明:当电动式制冷机制冷系数<3.5时,冷热电联产节能效益显著;当电动式制冷机制冷系数>4时,冷热电联产在低热电比下经济性变差。建议采用提高溴冷机热力系数或减小工业抽汽负荷、增加制冷负荷的方法,提高冷热电联产机组的经济效益。
关键词(KeyWords): 330MW机组;冷热电联产;热经济性;制冷机;制冷系数
基金项目(Foundation): 能源高效清洁利用广东普通高校重点实验室基金资助项目(KLB10004);; 广东省大气环境与污染控制重点实验室基金资助项目(2011A060901011)
作者(Author): 朱誉,李千军,冯永新,彭晓为,廖艳芬,马晓茜
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