参考答案:冷却倍率: m = 30800÷550 = 56冷却水温升 : Δt = 520÷m = 520÷56 = 9.3℃循环水出水温度: t2 = 19+9.3 = 28.3℃端差: δt = t∞-tw2 = 36-28.3 = 7.7℃真空度 = 凝汽器真空/大气压×100% = 96/101×100% = 95.05%凝汽器绝对压力P = 101-96 = 5Kpa【答】:循环水冷却水温升为9.3℃循环水出水温度为28.3℃,端差为7.7℃,真空度为95.05%,凝汽器绝对压力为5Kpa。
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