Synthesis of Heat Exchanger Networks with Considering Pressure Drop and Finding Optimized Streams Path Inside Tube and Shell

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Sadri v.; SOLTANI H.

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Paper Information

Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:5 Page(s): 1127-1134

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Information Journal Paper

Title

Synthesis of Heat Exchanger Networks with Considering Pressure Drop and Finding Optimized Streams Path Inside Tube and Shell

Author(s)

Sadri v. | SOLTANI H. | Issue Writer Certificate

Keywords

Shell-Tube Heat Exchanger Network SynthesisQ1

Pressure DropQ2

Genetic Algorithm Quasi-Linear Programming (QLP)Q2

Optimized Streams Path within ExchangersQ1

Abstract

In this research, taking into account the Pressure Drop of the streams, a simple and useful method is presented for finding the proper path of hot and cold streams inside shell-tube heat exchangers in the synthesis of heat exchangers networks (HENs). Generally, the HENs synthesis by mathematical programming leads to the problems which are answered by Mixed Integer Non Linear Programming (MINLP) methods. Optimization of such formulations results convergence difficulties due to the existence of both continuous and integer variables. In this study, instead of solving simultaneously integer and continuous variables, the genetic algorithm was used to find optimal HEN structure (integer variables). To find optimal values for continuous variables of the network, by categorizing this type of variables into two groups and using Quasi Linear Programming (QLP) instead of the nonlinear programming model (NLP), the complexity of the NLP model solution is also greatly reduced. The optimal values of continuous and integer variables are obtained with respect to a common objective function that reaches the minimum annual cost of the HEN. The comparison of the proposed method with the references shows that this method has the ability to reduce the cost of pumping flows to about 0. 76%.

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APA: Copy

Sadri, v., & SOLTANI, H.. (2019). Synthesis of Heat Exchanger Networks with Considering Pressure Drop and Finding Optimized Streams Path Inside Tube and Shell. MODARES MECHANICAL ENGINEERING, 19(5 ), 1127-1134. SID. https://sid.ir/paper/178034/en

Vancouver: Copy

Sadri v., SOLTANI H.. Synthesis of Heat Exchanger Networks with Considering Pressure Drop and Finding Optimized Streams Path Inside Tube and Shell. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(5 ):1127-1134. Available from: https://sid.ir/paper/178034/en

IEEE: Copy

v. Sadri, and H. SOLTANI, “Synthesis of Heat Exchanger Networks with Considering Pressure Drop and Finding Optimized Streams Path Inside Tube and Shell,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 5 , pp. 1127–1134, 2019, [Online]. Available: https://sid.ir/paper/178034/en

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