A Three-Step Method to Improve the Flexibility of Multiperiod Heat Exchanger Networks

Kang, Lixia; Liu, Yongzhong

doi:10.1007/s41660-018-0034-5

Cited by 6 publications

(4 citation statements)

References 22 publications

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“…In order to simplify the calculation, the effect of phase change on the heat transfer coefficient is not considered in this paper, and the overall heat transfer coefficient is set to 0.2. The remained coefficients are from the case of Kang et al's [19] paper.…”

Section: Basic Datamentioning

confidence: 99%

“…Verheyen and Zhang [17] published a simultaneous MINLP model for the design of multiperiod HEN, proving that the model of Yee and Grossmann [2] can be used for multiperiod HEN designs by eliminating the average area assumption of Aaltola [18] and obtaining more satisfactory results. The paper by Kang et al [19] in 2018 discussed a three-step method for the design of a flexible multiperiod HEN when uncertain parameter fluctuations occur at subperiods. First, a nominal multiperiod HEN is generated, then critical point identification and flexibility tests are applied to the HEN.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Flexible Heat Exchanger Network Synthesis Method Adapted to Multi-Operation Conditions

Ji,

Zhou,

Dang

et al. 2023

Processes

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This paper presents a flexible HEN (heat exchanger network) synthesis methodology for designing a multiperiod HEN with streams involving phase changes. The methodology is based on an MINLP (mixed integer nonlinear programming) model, identification of critical points, and flexibility index analysis considering phase changes. A nominal multiperiod HEN topology is constructed in the first step. Then each process operating condition’s critical points and flexibility index are calculated to verify the feasibility of the designed HEN under multiple operating conditions. To verify the validity of the method, the proposed methodology will be applied to a case study on an ammonia synthesis process heat transfer network design based on renewable energy. The results show that the method can obtain a flexible heat transfer network that is cost-effective and adaptable to multi-condition production for green ammonia synthesis.

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Section: Basic Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Flexible Heat Exchanger Network Synthesis Method Adapted to Multi-Operation Conditions

Ji,

Zhou,

Dang

et al. 2023

Processes

View full text Add to dashboard Cite

show abstract

“…The concept and solution innovation in the field of flexibility provide an avenue to extensive applications. The application value of flexibility originated from HEN [88] . Starting from 1980s, investigations on resilient/flexible HEN synthesis have never stopped [89] , [90] .…”

Section: Overview On the Evolution Of Flexibility Analysismentioning

confidence: 99%

Perspectives on the flexibility analysis for continuous pharmaceutical manufacturing processes

Yang

Qian

Yuan

et al. 2022

Chinese Journal of Chemical Engineering

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“…However, many of the design parameters of CCWSs change periodically, such as atmospheric temperature, air humidity, and electricity price, most of which have been neglected in previous CCWS studies. The study of multiperiod methods has a wide range of applications in process systems engineering, such as in chilled water networks, in groundwater management, in reactor networks, in utility systems planning, in pipes planning, and in heat exchanger networks (HENs). , Kang et al first designed a nominal multiperiod HEN, used the flexibility index to recognize the bottlenecks of the HEN, and then established a debottlenecking model to finalize the design of a flexible multiperiod HEN. The water cooler network in the CCWSs is similar to the heat exchange network.…”

Section: Introductionmentioning

confidence: 99%

Bi-Multiperiod Optimization of Industrial Cooling Systems

Liao

Wang

Feng

et al. 2021

Ind. Eng. Chem. Res.

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In many chemical plants, a variety of cooling systems, including circulating cooling water systems and air coolers, are widely used to remove industrial waste heat. Current approaches for the design and optimization of these systems have focused on the use of constant parameters, including fixed temperature and energy price. Moreover, the ever-changing weather conditions play a major role in the design of cooler water systems and air coolers, leading to an unbalanced problem formulation that attempts to solve a complex problem with minimum rigor. Therefore, the concept of bi-multiperiod optimization is proposed to describe the daily/monthly change of weather conditions, as well as the fluctuation of electricity price during peak and off-peak periods within a day. The aim of this work is to obtain an economically optimal cooling system design under bi-multiperiod conditions by reasonably configuring both water coolers and air coolers. A mixed integer nonlinear programming (MINLP) model was established to obtain the optimal configuration. A case study derived from the literature shows that the optimized cooling network configuration using the proposed method is more economic than the deterministic design, the cooling water consumption is reduced by 5%, and the total cost is reduced by more than 9%.

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A Three-Step Method to Improve the Flexibility of Multiperiod Heat Exchanger Networks

Cited by 6 publications

References 22 publications

A Flexible Heat Exchanger Network Synthesis Method Adapted to Multi-Operation Conditions

A Flexible Heat Exchanger Network Synthesis Method Adapted to Multi-Operation Conditions

Perspectives on the flexibility analysis for continuous pharmaceutical manufacturing processes

Bi-Multiperiod Optimization of Industrial Cooling Systems

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