Retrofit of Water Network with Regeneration Using Water Pinch Analysis |
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| Institution: | 1. School of Engineering & Science, Curtin University of Technology, Sarawak, Malaysia;2. Chemical Engineering Department, Universiti Teknologi Malaysia, Johor, Malaysia;3. School of Chemical and Environmental Engineering, University of Nottingham Malaysia, Selangor Darul Ehsan, Malaysia;1. Institute of Pure Sciences and Technology, Feevale University, 2755 RS 239 – Vila Nova, Novo Hamburgo, RS, Brazil;2. Engineering Department, Centro Universitário Ritter dos Reis – UniRitter, 555 Orfanotrófio – Alto Teresópolis, Porto Alegre, RS, Brazil;3. Agroindustrial Engineering Department, Federal University of Rio Grande, 125 Barão do Caí – Cidade Alta, Santo Antônio da Patrulha, RS, Brazil;1. School of Chemical Engineering and Technology, Xi''an Jiaotong University, Xi''an, 710049, China;2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China;1. Faculty of Technology, University of Tuzla, Univerzitetska 8, 75000 Tuzla, Bosnia and Herzegovina;2. Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ul. 17, 2000 Maribor, Slovenia;1. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China;2. Department of Chemical and Environmental Engineering/Centre of Excellence for Green Technologies, University of Nottingham Malaysia, Broga Road, 43500, Semenyih, Selangor, Malaysia;3. Chemical Engineering Department/Center for Engineering and Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 0922, Manila, Philippines |
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| Abstract: | This paper presents the development of a new systematic technique for the retrofit of water network with regeneration based on water pinch analysis. The procedure consists of two parts: retrofit targeting and design for a water network with regeneration unit(s). In the targeting stage, retrofit targets (utility savings and capital investment) were determined for a range of process parameters (total flowrate and/or outlet concentration of the regeneration unit) to obtain a savings versus investment curve. Next, the existing water network was re-designed to meet the chosen targets. A case study on paper making process was used to demonstrate the new methodology. |
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