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熱交換器の熱力計算工程について

2019-12-24View Original

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冷却側のプロセスガスの入口温度は160℃、出口温度は350℃℃;熱側の過熱蒸気は520℃、圧力は8.5MPa。 熱交換工程の都合上、2台の直列に接続された表面冷却器を設置する。一段熱交換器:過熱蒸気を520℃から冷却凝縮し、295℃の飽和水(8MPa)にする;二段熱交換器:蒸気と水の混合物を200℃の飽和水(1.55MPa)まで冷却する。 この案の実現可能性と長所・短所は? もちろん、過熱蒸気を295℃まで凝縮させる加熱法も使用できますが、エネルギーの利用効率はあまり良くありません。

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