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Paper Information

Journal:   JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN)   September 2002 , Volume 36 , Number 2 (76); Page(s) 241 To 255.
 
Paper: 

RETROFIT OF HEAT EXCHANGER NETWORKS CONSIDERING PRESSURE DROP AND EXISTING STRCTURE : A NEW TARGETING PROCEDURE

 
 
Author(s):  PANJEH SHAHI M.H., NOUZARI M.M.
 
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Abstract: 

A new retrofit targeting procedure, based on pinch technology has been developed. The procedure considers existing structure and hydrodynamic system of a given network as two main constraint during targeting. The procedure uses a linear programming model to consider existing structure. The model finds a network structure that has maximum compatibility with existing structure. Furthermore, the procedure using the pressure drop equations, can consider decreasing the film coefficients of streams due to increasing network area. Good compatibility between old and new networks and non replacement of hydrodynamic equipment cause to the best use of capital in retrofit projects. The procedure has been checked by doing two case studies, in which the results compared to the established methods, and realized significant improvement

 
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