heat integration in multipurpose batch plants using a

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Jul 15, 2014  Many current heat integration methods for multipurpose batch plants use a sequential methodology where the schedule is solved first followed by heat integration. This can lead to suboptimal results. In this paper, the heat integration model is built upon a robust scheduling framework.

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Sep 01, 2006  A continuous-time mathematical formulation for direct heat integration of multipurpose batch plants has been presented. The formulation results in smaller problems compared to the discrete-time formulation, which renders it applicable to large-scale problems. Application of the formulation to an industrial case study showed an 18.5% improvement ...

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Presented in this paper is a continuous-time mathematical formulation for optimization of heat integrated batch chemical plants. This formulation is applicable to both multipurpose and multiproduct facilities in which opportunities for direct heat integration exist.

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Jan 20, 2017  Fig. 4 shows the state task network of a multipurpose batch plant, while Fig. 5 shows the state sequence network (Seid and Majozi, 2012).This example is commonly referred to as “BATCH1” in literature and has been modified to include heating and cooling requirements for certain tasks to allow for the possibility of Heat Integration.

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Augmented Heat Integration in Multipurpose Batch Plants ...

10%  Feb 03, 2018  Abstract. Energy minimisation in batch plants has garnered popularity over the past few decades, leading to direct and indirect heat integration techniques being formulated for multipurpose batch plants through the utilisation of

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Sep 01, 2006  Many current heat integration methods for multipurpose batch plants use a sequential methodology where the schedule is solved first followed by heat integration. This can lead to

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A model for the simultaneous optimisation of the schedule and energy usage in heat integrated multipurpose batch plants operated over long time horizons has been presented. The method uses a cyclic scheduling solution procedure. The proposed model includes indirect Heat Integration via heat storage, rather than just direct Heat Integration.

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Heat integration in multipurpose batch plants using a ...

Many current heat integration methods for multipurpose batch plants use a sequential methodology where the schedule is solved first followed by heat integration. This can lead to suboptimal results. In this paper, the heat integration model is built upon a robust scheduling framework.

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Heat integration in multipurpose batch plants using a ...

Many current heat integration methods for multipurpose batch plants use a sequential methodology where the schedule is solved first followed by heat integration. This can lead to suboptimal results.

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Heat Integration in Multipurpose Batch Plants: II ...

Nov 03, 2009  Heat integration of multipurpose batch plants using a continuous-time framework. Appl. Thermal Eng., 26: 1369–1377. CrossRef Google Scholar. Majozi, T., 2009. Minimization of energy use in multipurpose batch plants using heat storage: an aspect of cleaner production. J. Cleaner Prod., 17: 945–950.

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Heat integration of multipurpose batch plants through ...

Nov 02, 2017  Energy minimisation in batch plants has garnered popularity over the past few decades, leading to direct and indirect heat integration techniques being formulated for multipurpose batch plants through the utilisation of mathematical formulations and insight-based methods Some mathematical formulations utilise predetermined scheduling frameworks which may result in

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Optimal Scheduling of Heat-Integrated Multipurpose Plants ...

Dec 01, 1994  Minimization of energy use in multipurpose batch plants using heat storage: an aspect of cleaner production. Journal of Cleaner Production 2009, 17 (10) , 945-950.

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HEAT INTEGRATION OF MULTIPURPOSE BATCH PLANTS

HEAT INTEGRATION OF MULTIPURPOSE BATCH PLANTS THROUGH MULTIPLE HEAT STORAGE VESSELS Nthabiseng Sebelebele Master of Science in Engineering by research: “A dissertation submitted to the Faculty of Engineering and Built Environment, University of the Witwatersrand, Johannesburg, in fulfilment of the

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A MILP Model for Energy Optimization in Multipurpose Batch ...

A MILP Model for Energy Optimization in Multipurpose Batch Plants Using Heat Storage Thokozani Majozi‡ and Carl Sandrock Department of Chemical Engineering, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa Abstract The concept of heat integration in batch chemical plants has been in literature for more than a decade. Heat

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Minimization of energy use in multipurpose batch plants ...

Jul 01, 2009  A mathematical approach for optimization of energy use in heat integrated multipurpose batch plants has been developed and tested in a case study. The results confirm that heat integration with heat storage considerations can result in energy savings of more than 75%, compared to stand alone operations that rely solely on external utilities.

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Minimization of energy use in multipurpose batch plants ...

A mathematical technique for optimization of energy use through the exploitation of heat storage in heat integrated multipurpose batch plants is presented in this document.

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Long-term heat integration in multipurpose batch plants ...

Request PDF Long-term heat integration in multipurpose batch plants using heat storage Most scheduling methods are limited to the short-term scheduling case and solution of problems over long ...

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Optimum heat storage design for heat integrated ...

Aug 01, 2011  Heat integration to minimise energy usage in multipurpose batch plants has been in published literature for more than two decades. In most present methods, time is fixed a priori through a known schedule, which leads to suboptimal results.

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Optimal design of multipurpose batch facilities with ...

In section 2.1. a comprehensive review of design formulations for multi-purpose batch plants is pre-sented. In section 2.2. a literature review regarding heat integration on multipurpose batch plants is presented. Section 2.3. presents a literature review regarding the design of integrated solar thermal energy systems in industrial facilities.

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Heat exchanger network design for multipurpose batch plants

Abstract A mathematical programming approach to the design of heat exchanger networks for multipurpose batch plants is presented, aiming to determine the minimum total cost network while satisfying given product demands. Only the direct mode of heat integration is considered. The plant is assumed to operate in a zero-wait overlapping mode, where each product must pass through a subset

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Augmented Heat Integration in Multipurpose Batch Plants ...

Energy minimisation in batch plants has garnered popularity over the past few decades, leading to direct and indirect heat integration techniques being formulated for multipurpose batch plants through the utilisation of mathematical formulations and insight-based methods.

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Heat integration in multipurpose batch plants using a ...

Many current heat integration methods for multipurpose batch plants use a sequential methodology where the schedule is solved first followed by heat integration. This can lead to suboptimal results. In this paper, the heat integration model is built upon a robust scheduling framework.

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Heat Integration in Multipurpose Batch Plants: I. Direct ...

Nov 03, 2009  As batch processes become more popular, it has become necessary to develop energy optimisation techniques that are particular to batch plants. This chapter presents a mathematical formulation that is founded on uneven discretization of the time horizon for direct heat integration of multiproduct and multipurpose batch plants.

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A MILP Model for Energy Optimization in Multipurpose Batch ...

A MILP Model for Energy Optimization in Multipurpose Batch Plants Using Heat Storage Thokozani Majozi‡ and Carl Sandrock Department of Chemical Engineering, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa Abstract The concept of heat integration in batch chemical plants has been in literature for more than a decade. Heat

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(PDF) Optimal design of heat-integrated multipurpose batch ...

ConclusionsA detailed mathematical framework for the design of multipurpose batch facilities with direct heat-integration and economic savings in utilities has been developed and tested.Optimal plant configuration and operation are obtained as well as optimal plant heat-transfer policies and heat-transfer auxiliary equipment associated areas.

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Augmented Heat Integration in Multipurpose Batch Plants ...

Energy minimisation in batch plants has garnered popularity over the past few decades, leading to direct and indirect heat integration techniques being formulated for multipurpose batch plants through the utilisation of mathematical formulations and insight-based methods.

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Heat exchanger network design for multipurpose batch plants

Abstract A mathematical programming approach to the design of heat exchanger networks for multipurpose batch plants is presented, aiming to determine the minimum total cost network while satisfying given product demands. Only the direct mode of heat integration is considered. The plant is assumed to operate in a zero-wait overlapping mode, where each product must pass through a subset

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Minimization of energy use in multipurpose batch plants ...

A mathematical technique for optimization of energy use through the exploitation of heat storage in heat integrated multipurpose batch plants is presented in this document. Storage of heat is effected through the use of a heat transfer fluid.

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Optimal Design of Heat-Integrated Multipurpose Batch ...

The increasing importance of utilities rationalization is an aspect that must be addressed from the early steps of the industrial design procedure. This paper addresses this problem and presents a mathematical formulation for the detailed design of multi-purpose batch process facilities where heat-integration and economic savings in utilities are considered. This generalization appears as an ...

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PROCESS INTEGRATION AS AN OPTIMISATION TOOL IN ...

heat integrated multipurpose batch plants operated over long time horizons is presented. The method uses a cyclic scheduling solution procedure. Indirect heat integration via heat storage was included, rather than just direct heat integration. This has not been considered in long-term heat integration models in current literature.

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Understanding Batch Chemical Processes: Modelling and Case ...

Dec 10, 2019  Heat Integration in Multipurpose Batch Plants. Design and Synthesis of Heat-Integrated Batch Plants Using an Effective Technique. Simultaneous Scheduling and Water Optimization: Reduction of Effluent in Batch Facilities. Optimization of Energy and Water Use in Multipurpose Batch Plants Using an Improved Mathematical Formulation.

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Optimum heat storage design for heat integrated ...

Heat integration to minimise energy usage in multipurpose batch plants has been in published literature for more than two decades. In most present methods, time is fixed a priori through a known schedule, which leads to suboptimal results. The method presented in this paper treats time as a variable, thereby leading to improved results.

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Optimal Periodic Scheduling of Batch Plants Using RTN ...

A resource-task network approach for optimal short-term/periodic scheduling and heat integration in multipurpose batch plants. Applied Thermal Engineering 2009 , 29 (5-6) , 1195-1208.

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A computerized and integrated approach for heat exchanger ...

Request PDF A computerized and integrated approach for heat exchanger network design in multipurpose batch plants Significant savings in the utility cost of batch plants can be obtained by ...

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A Novel Continuous-Time MILP Formulation for Multipurpose ...

Nov 14, 2001  In this paper, a new concept, the so-called state sequence network representation, is presented. This representation is based on states only, eliminating the use of tasks and units. Using this new representation as a basis, a novel continuous-time MILP formulation for short-term scheduling of multipurpose batch plants is developed. The presented formulation can readily be extended to ...

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