Re: Thermosiphon Reboilers

Hi Ahmed,
You will find the method you are looking for in book of Process Heat Transfer by Donald Q Kern (21ed, 1983). On chapter 15 under the heading horizontal thermosiphon reboiler and also example. there is a procedure to compute of pressure drop and your question. I hope it will help you.

Regards,
Rofinus

• Original Message ----- From: "Ahmed Vawda" <avawda@aksugar.co.ae> To: <PipingDesign@yahoogroups.com> Sent: Sunday, June 24, 2001 11:17 AM Subject: [PipingDesign] Thermosiphon Reboilers

>
> Hi Forum Members
>
> I am considering converting a U Tube heat exchanger into a thermosiphon
> boiler, with steam inside the tubes and water on the shell side in a
> horizontal configuration.
>
> I would like to know how to calculate the pressure drop of the flow,
notably
> the two phased flow coming off the top of the shell enroute to the
> separating tank/column.
>
> I understand that if the height above the shell is too high, the
hydrostatic
> head will inhibit circulation and hence evaporation. Will there be a
problem
> if this height is really short?
>
> Thanks
> Ahmed Vawda
> Process Engineer
> Al Khaleej Sugar - Dubai
>
>
> [Non-text portions of this message have been removed]
>
>
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Received on Tue Jun 26 05:51:00 2001