Selection of minimum temperature difference (ΔTmin) for heat exchanger network synthesis based on trade-off plot

2016 ◽  
Vol 162 ◽  
pp. 1259-1271 ◽  
Author(s):  
Suraya Hanim Abu Bakar ◽  
Mohd. Kamaruddin Abd. Hamid ◽  
Sharifah Rafidah Wan Alwi ◽  
Zainuddin Abdul Manan
2014 ◽  
Vol 61 ◽  
pp. 2621-2624 ◽  
Author(s):  
Suraya Hanim Abu Bakar ◽  
Mohd. Kamaruddin Abd. Hamid ◽  
Sharifah Rafidah Wan Alwi ◽  
Zainuddin Abdul Manan

2004 ◽  
Vol 3 (2) ◽  
pp. 87
Author(s):  
F. S. Liporace ◽  
F. L. P. Pessoa ◽  
E. M. Queiroz

The Pinch Design Method was developed considering one-phase streams, with constant specific heats (Cp) throughout streams’ temperature ranges. Its first stage, the determination of utilities targets and pinch point (PP), is ruled by the number of streams, their temperatures and MCp. But, for changing phase streams, the usual description of the Cp behavior by a constant value can lead to errors in this stage and, hence, in the synthesis one. This work proposes a procedure to deal with these streams and discusses its results through an example involving multicomponent streams. First, bubble (BP) and dew (DP) points of the streams are estimated. Then, changing phase streams are split into sub-streams, using BP and DP as bounds. For each one, an effective Cp is estimated as the division of the enthalpy change by the respective temperature difference. Results obtained show significant changes on the PP, utilities targets and network proposed structure.


2017 ◽  
Vol 173 ◽  
pp. 537-559 ◽  
Author(s):  
Xiaodong Hong ◽  
Zuwei Liao ◽  
Binbo Jiang ◽  
Jingdai Wang ◽  
Yongrong Yang

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