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  1. lostragio

    Overall heat transfer coefficient variation

    Hi StoneCold, there is no mistake, maybe just some misunderstanding: - ice tank are used in food industry to "store" some ice and avoid over-size HX. during low load period (night) the ammonia compressors work to cool the water to 0°C and accumulate ice on the external wall of the flooded HX...
  2. lostragio

    Overall heat transfer coefficient variation

    Hi everyone, I've a flooded tubular heat exchanger inside a tank for the production of cold water (0°C): inside the tubular HX flows ammonia at -6 °C. Knowing nomila heat power and effective LMTD, I could calculate U*S (where U is overall heat transfer coefficient and S is the surface): I don't...

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