@article{MTMT:31609075, title = {Multiple-solution heat exchanger network synthesis for enabling the best industrial implementation}, url = {https://m2.mtmt.hu/api/publication/31609075}, author = {Orosz, Ákos and Friedler, Ferenc}, doi = {10.1016/j.energy.2020.118330}, journal-iso = {ENERGY}, journal = {ENERGY}, volume = {208}, unique-id = {31609075}, issn = {0360-5442}, year = {2020}, eissn = {1873-6785} } @article{MTMT:2826246, title = {Process modifications to maximise energy savings in total site heat integration}, url = {https://m2.mtmt.hu/api/publication/2826246}, author = {Chew, KH and Klemeš, Jiri Jaromir and Wan, Alwi SR and Manan, ZA}, doi = {10.1016/j.applthermaleng.2014.04.044}, journal-iso = {APPL THERM ENG}, journal = {APPLIED THERMAL ENGINEERING}, volume = {78}, unique-id = {2826246}, issn = {1359-4311}, abstract = {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.}, keywords = {Total site heat integration; Pinch analysis; Process modifications; Extended Plus-Minus Principles}, year = {2015}, eissn = {1873-5606}, pages = {731-739} } @article{MTMT:2370310, title = {Sustaining high energy efficiency in existing processes with advanced process integration technology}, url = {https://m2.mtmt.hu/api/publication/2370310}, author = {Zhang, N and Smith, R and Bulatov, I and Klemeš, Jiri Jaromir}, doi = {10.1016/j.apenergy.2012.02.037}, journal-iso = {APPL ENERG}, journal = {APPLIED ENERGY}, volume = {101}, unique-id = {2370310}, issn = {0306-2619}, abstract = {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.}, keywords = {Optimization; distillation; TECHNOLOGY; performance assessment; renewable resource; Renewable energies; environmental management; DISTILLATION EQUIPMENT; Emission reduction; Environmental performance; Emission control; Energy efficiency; Waste heat; Industry; Energy utilization; Optimisations; Process integration; Process industries; Solution methods; New design; Modelling techniques; High energy efficiency; Crude oil; Existing systems; In-process; Step changes; Process Technologies; Operational changes; Industrial projects; Heat-integrated distillation; Energy saving potential; Capital expenditures; Advanced process; Operation optimisation; Heat integrated distillation; Operational flexibility}, year = {2013}, eissn = {1872-9118}, pages = {26-32} }