Heat exchanger

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This post was last edited by yuchenchf on 2017-5-18 09:10. The given parameters are: the inlet and outlet temperatures of the steam in the shell side are 205 and 95 degrees Celsius respectively. The operating pressure is 0.75 Mpa. The inlet and outlet temperatures of the tube-side cooling water are 38 and 97 degrees Celsius respectively. The working pressure is 1.6 Mpa. The cooling water flow rate is 120 t/h. Design a U-tube heat exchanger. Should latent heat be considered? I seek advice from experts. Does this belong to the condenser or the heater? In this device, the steam flows through the shell side; it is classified as a pressure vessel. The inlet temperature of the steam is 205 degrees, while the outlet temperature is 95 degrees, which is below the normal boiling point of steam. Phase change occurs during this process, so the latent heat of vaporization must be taken into account. Moreover, the heat from the steam is primarily released during phase change, with the sensible heat being relatively smaller. Therefore, the latent heat of vaporization is essential to consider. As for whether it functions as a condenser or a heater, condensation and heating are part of the same process – when the steam condenses, the water is naturally heated, so there’s no need to get stuck on the name used to describe it. In such applications, U-tube heat exchangers do not offer very high efficiency; spiral-wound tube heat exchangers could be considered instead