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http://hdl.handle.net/2080/600
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| Title: | A Rapid Screening Tool to Predict Optimal Feed Flow Sequence of A Multiple |
| Authors: | Khanam, S
Mohanty, B |
| Issue Date: | 2008 |
| Publisher: | JNTU Hyderabad |
| Citation: | 19th National & 8th ISHMT-ASME Heat and Mass Transfer Conference, January 3 - 5, 2008, JNTU Hyderabad, India |
| Abstract: | A simple mathematical model based on principles of
Process Integration (PI) has been developed to screen the
optimal feed flow sequence (OFFS) of a multiple effect
evaporators (MEE) system which will offer best steam
economy.
The model assumes fresh feed to be composed of streams
of product and different condensate streams. It also takes
in to account temperature paths followed by each stream
and internal heat exchange between hot and cold parts of
a stream along with variable physical properties of
steam/vapor and condensates. A septuple effect flat
falling film evaporator (SEFFFE) system with steam
splitting and feed, product and condensate flashing, used
to concentrate weak black liquor, is considered for
simulation. The set of linear algebraic equations of the
model is solved simultaneously using Gaussian
elimination method with partial pivoting. Backward feed
flow sequence is found to be the optimum for the system.
The results of the present model are also compar... |
| Description: | Copyright for the paper belongs to the proceedings publisher |
| URI: | http://hdl.handle.net/2080/600 |
| Appears in Collections: | Conference Papers
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| sabina-2008conf1.pdf | | 288Kb | Adobe PDF | View/Open |
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