TY - JOUR AU - Orosz, Ákos AU - Friedler, Ferenc TI - Multiple-solution heat exchanger network synthesis for enabling the best industrial implementation JF - ENERGY J2 - ENERGY VL - 208 PY - 2020 SN - 0360-5442 DO - 10.1016/j.energy.2020.118330 UR - https://m2.mtmt.hu/api/publication/31609075 ID - 31609075 N1 - Department of Computer Science and Systems Technology, University of Pannonia, Egyetem u. 10, Veszprém, 8200, Hungary Pázmány Péter Catholic University, Szentkirályi u. 28, Budapest, 1088, Hungary Széchenyi István University, Egyetem tér 1, Győr, 9026, Hungary Cited By :24 Export Date: 18 November 2022 CODEN: ENEYD Correspondence Address: Friedler, F.; Széchenyi István University, Egyetem tér 1, Hungary; email: f.friedler@ga.sze.hu LA - English DB - MTMT ER - TY - JOUR AU - Chew, KH AU - Klemeš, Jiri Jaromir AU - Wan, Alwi SR AU - Manan, ZA TI - Process modifications to maximise energy savings in total site heat integration JF - APPLIED THERMAL ENGINEERING J2 - APPL THERM ENG VL - 78 PY - 2015 SP - 731 EP - 739 PG - 9 SN - 1359-4311 DO - 10.1016/j.applthermaleng.2014.04.044 UR - https://m2.mtmt.hu/api/publication/2826246 ID - 2826246 AB - This paper extends the scope of the Pinch Analysis for process modifications of individual processes to total site heat integration (TSHI). The Plus-Minus principle has been adapted to enable the beneficial process modification options to be selected in order to maximise energy savings in TSHI. The Total Site Profile (TSP) is divided into three regions: (a) the region above the horizontal overlap between the Site Sink and Source Profiles, (b) the horizontal overlap region and (c) below the horizontal overlap region. The proposed methodology identifies the options to reduce utility targets in these regions using the TSP, Site Utility Composite Curves (SCC), Utility Grand Composite Curve (UGCC), modified Problem Table Algorithm (PTA), Total Site Problem Table Algorithm (TS-PTA) and some new heuristics. The identified changes on the TSP are then linked to the specific changes at the individual processes. The illustrative case study shows that the Plus-Minus principle application in the TSHI context can further improve heat recovery. The proposed spreadsheet-based methodology combines the advantages of graphical visualisation, as well as the numerical precision. © 2014 Elsevier Ltd. All rights reserved. LA - English DB - MTMT ER - TY - JOUR AU - Zhang, N AU - Smith, R AU - Bulatov, I AU - Klemeš, Jiri Jaromir TI - Sustaining high energy efficiency in existing processes with advanced process integration technology JF - APPLIED ENERGY J2 - APPL ENERG VL - 101 PY - 2013 SP - 26 EP - 32 PG - 7 SN - 0306-2619 DO - 10.1016/j.apenergy.2012.02.037 UR - https://m2.mtmt.hu/api/publication/2370310 ID - 2370310 N1 - Centre for Process Integration, School of Chemical Engineering and Analytical Science, The University of Manchester, Manchester M13 9PL, United Kingdom Process Integration Limited, One Central Park, Northampton Road, Monsall, Manchester M40 5BP, United Kingdom Centre for Process Integration and Intensification - CPI, Research Institute of Chemical and Process Engineering, Faculty of Information Technology, University of Pannonia, Egyetem u. 10, Veszprém 8200, Hungary Cited By :67 Export Date: 17 October 2023 CODEN: APEND Correspondence Address: Zhang, N.; Centre for Process Integration, , Manchester M13 9PL, United Kingdom; email: nan.zhang@manchester.ac.uk Funding details: Seventh Framework Programme, FP7, 262205 AB - To reduce emissions in the process industry, much emphasis has been put on making step changes in emission reduction, by developing new process technology and making renewable energy more affordable. However, the energy saving potential of existing systems cannot be simply ignored. In recent years, there have been significant advances in process integration technology with better modelling techniques and more advanced solution methods. These methods have been applied to the new design and retrofit studies in the process industry. Here attempts are made to apply these technologies to improve the environmental performance of existing facilities with operational changes. An industrial project was carried out to demonstrate the importance and effectiveness of exploiting the operational flexibility for energy conservation. By applying advanced optimisation technique to integrate the operation of distillation and heat recovery in a crude oil distillation unit, the energy consumption was reduced by 8% without capital expenditure. It shows that with correctly identified technology and the proper execution procedure, significant energy savings and emission reduction can be achieved very quickly without major capital expenditure. This allows the industry to improve its economic and environment performance at the same time. © 2012 Elsevier Ltd. LA - English DB - MTMT ER -