Where this is not done, the presence of condensate in the heat exchanger will have an adverse effect on operating performance and will reduce service life. This method of control can have certain benefits if the system is designed correctly. One is that the condensate sub-cools in the heat exchanger before it
enters the shell through a top vapor opening and surrounds the tubes inside of the shell. As the latent heat of steam is transferred to the medium inside of the tubes condensation occurs. The condensate then collects in the bottom of the heat exchanger shell and drains towards a bottom condensate
Shell and Tube Heat ExchangerObjectives Operate shell and tube heat exchanger varying steam flow Determine the outside overall heat transfer coefficient (U o) Determine shellside heat transfer (Q SS) Determine tubeside heat transfer (Q TS) Condense the objective into the primary objective(s). Do not list all tasks performed.
heat exchanger shell through the top vapor opening and surrounds the outside of the tubes. As energy is transferred through the tubes it heats the water inside the tubes. The heat transfer condenses steam inside the shell forming condensate that drops to the bottom of the heat exchanger shell. The condensate flows through the bottom condensate outlet and
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Steam Control and Condensate Drainage for Heat Jul 17, 2014 · For this to occur, condensate must back up in the heat exchanger shell until enough tube surfaces are covered by condensate to build a positive steam pressure. When the positive steam pressure develops to move the condensate through the steam trap and up the vertical return line, over heating can occur on the tube side of the heat exchanger due to the positive steam pressure remaining in the shell.
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