A methodology for designing thermodynamic energy conversion systems in industrial mass/heat integration problems based on MILP models

Wissocq, Thibaut; Ghazouani, Sami; Bourdiec, Solène Le

doi:10.1016/j.energy.2019.06.124

Cited by 9 publications

(7 citation statements)

References 18 publications

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“…Secondly, some studies analyzed the techno-economic performance of a specific system configuration, such as CHP [42], micro-CHP [43], and CCHP [44] systems. Thirdly, other studies explored the optimal design of HENs for inter-plant waste heat recovery [45]; the simultaneous design of mass allocation and heat exchange networks [46]; and total site heat integration in the context of industrial, urban and renewable energy systems [47] as well as district cooling systems [48]. Lastly, the works by Calva et al [49] and Picón and Medina [17] proposed a fast and reliable procedure to optimize the design of thermally integrated CCHP systems based on gas turbinevapor compression chiller and steam turbine-absorption chiller using simple thermodynamic models.…”

Section: The Issue Of Thermal Integration In Energy Systems For Buildingsmentioning

confidence: 99%

Tackling thermal integration in the synthesis of polygeneration systems for buildings

Pina

Lozano²,

Ramos³

et al. 2020

Applied Energy

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A novel methodology is proposed for the synthesis of polygeneration systems in tertiary sector buildings with detailed thermal integration. The methodology involves a systematic approach that combines Pinch Analysis, mathematical programming, and the definition of a superstructure with thermal flexibility whereby mass flows can exchange heat in various temperature intervals. With the detailed characterization of the thermal energy flows associated with the thermal energy technologies and services to be supplied to the building, the optimization procedure provides a more realistic system configuration, ensures that thermodynamic principles are satisfied, and allows for synergies and potential benefits to emerge. The methodology is first introduced through a simple example of a gas engine-based energy system, highlighting the necessity of a detailed characterization of the hot and cold flows regarding their quantity and quality levels. Then, the approach is applied to the case study of a Brazilian university hospital that requires electricity, steam, hot water, and chilled water. The optimization is formulated as a multi-period mixed integer linear programming model that minimizes the total annual cost of installing and operating the system using local-based data. The results show the technical and economic interest of deploying cogeneration gas engines to cover electricity and thermal energy services. Besides, a strong synergy is observed between the cogeneration gas engine and the single-effect absorption chiller. Thus, it is demonstrated how a preliminary analysis of thermal integration opportunities must be an integral part of the optimal synthesis of energy supply systems.

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Section: The Issue Of Thermal Integration In Energy Systems For Buildingsmentioning

confidence: 99%

Tackling thermal integration in the synthesis of polygeneration systems for buildings

Pina

Lozano²,

Ramos³

et al. 2020

Applied Energy

View full text Add to dashboard Cite

show abstract

“…The objective function considered TACs minimization, counting regeneration, piping, and freshwater costs . A combination of mass allocation networks and MEN was included in a novel methodology for designing energy conversion systems based on mass and heat integration through mixed-integer linear programming (MILP) . This methodology is very comprehensive in analyzing and improving industrial processes but limited for application in industrial eco-parks or more complex systems.…”

Section: Sustainable Chemical Process Design Approachmentioning

confidence: 99%

“…216 A combination of mass allocation networks and MEN was included in a novel methodology for designing energy conversion systems based on mass and heat integration through mixed-integer linear programming (MILP). 217 This methodology is very comprehensive in analyzing and improving industrial processes but limited for application in industrial eco-parks or more complex systems. Thus, the inner-plant heat-integrated water allocation network (IHIWAN) was presented for applying process integration to design industrial parks, extending the previously described approach.…”

Section: T T T Minmentioning

confidence: 99%

Process Synthesis, Analysis, and Optimization Methodologies toward Chemical Process Sustainability

Meramo

González-Delgado²

2021

Ind. Eng. Chem. Res.

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These days, developing sustainable chemical facilities to generate biofuels, energy, bioproducts, and value-added chemicals has attracted attention. The above involves changing the traditional conception of transformation processes into more sustainable production based on the green chemistry principles, renewable energies, and the triple dimensions of sustainable development. Consequently, the addition of sustainability issues in process synthesis, analysis, and optimization of bioprocesses has become increasingly noteworthy. This study reports a literature review concerning the sustainable chemical process design framework based on process synthesis, analysis, and optimization methodologies. Studies on biorefinery/process synthesis approaches are analyzed and compared, offering a detailed overview of selected literature. These included hierarchical, mathematical, and mixed approaches. This review also outlined indexes and indicators for measuring sustainability in process design considering exergetic/energetic, environmental, economic, and safety aspects. It is worth mentioning the role that exergetic metrics are expected to play in measuring global process sustainability. Finally, the current research gap of process integration is analyzed, considering pinch analysis techniques, simultaneous heat and mass integration, and hybrid intensification−integration approaches.

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“… 3 These correlated facts put pressure on the energy generation sector to create novel ways to mitigate both the effects on the environment and accomplished with the energy requirements demanded by the contemporary society. 4 Therefore, production and energy generation from biofuels have appeared, some decades ago, as a realizable alternative to trading-off between pollution prevention actions and summons of economic aspects related to the traditional transformation processes and energy sector. 5 Biofuels have the ability to decrease the dependence of fossil fuels, reaching a reduction in GHC emission and carbon footprint; thus, many researchers are optimistic about the potential derived from these substances with a positive prediction regarding biofuels.…”

Section: Introductionmentioning

confidence: 99%

Process Analysis of Hydrogen Production via Biomass Gasification under Computer-Aided Safety and Environmental Assessments

2020

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The growing awareness to advance new ways to transform renewable materials for producing clean fuels, under technical and sustainable viability, is evident. In this regard, hydrogen arises as one of the cleanest and energetic biofuels in the market. This work addresses the modeling and evaluation of a biomass gasification topology employing process simulation along with an environmental and inherent safety analysis. The presented pathway considered two renewable raw materials (cassava and rice waste) based on their vast availability in north Colombia regions. We employed Aspen Plus process simulation software to model the process, setting biomasses (and ash content) as nonconventional solids in the software and inclusion of FORTRAN subroutines for handling solid properties. Otherwise, the environmental evaluation was performed applying the waste reduction algorithm (WAR). At the same time, safety assessment involves a comprehensive approach based on the inherent safety index (ISI) and the process route index (PRI) methods. Data generated from the implementation of rigorous process simulation of biomass gasification allowed us to determine the needed aspect for performing process analysis methodologies. Results revealed that this topology generates a total flow of 3944.51 kg/h with more than 97% vol of H 2 , from the sustainable use of 19,243 kg/h of cassava waste and 15,000 kg/h of rice straw. From the environmental viewpoint, the process showed moderately to a high overall rate of potential environmental impacts (PEIs), with a higher contribution from process sources than energy sources. It indicates that most of the generated impacts would come from self-operation than from the energy supply generation. In the case of process safety, the topology obtained an ISI score of 35, which represents that modeled gasification would operate below 50% of the expected neutral standard for a physical–chemical process. Complementing the safety evaluation, the obtained PRI suggests that compared to other processes, the analyzed topology shows relatively adequate performance considering the nature of this type of process.

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A methodology for designing thermodynamic energy conversion systems in industrial mass/heat integration problems based on MILP models

Cited by 9 publications

References 18 publications

Tackling thermal integration in the synthesis of polygeneration systems for buildings

Tackling thermal integration in the synthesis of polygeneration systems for buildings

Process Synthesis, Analysis, and Optimization Methodologies toward Chemical Process Sustainability

Process Analysis of Hydrogen Production via Biomass Gasification under Computer-Aided Safety and Environmental Assessments

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