@article{MTMT:2370303, title = {Process intensification and integration: An assessment}, url = {https://m2.mtmt.hu/api/publication/2370303}, author = {Klemeš, Jiri Jaromir and Varbanov, Petar}, doi = {10.1007/s10098-013-0641-3}, journal-iso = {CLEAN TECHNOL ENVIRON POLICY}, journal = {CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY}, volume = {15}, unique-id = {2370303}, issn = {1618-954X}, abstract = {A considerable number of studies have been performed for improving the efficiency of production processes, of energy supply and utilisation, while reducing emissions of greenhouse gases, volatile organic compounds and other pollutants. This has been a very important task which this journal has been targeting. As a response to these industrial and societal requirements considerable research effort has been targeted to process integration and process intensification. This article has made an attempt for a short assessment of those advanced engineering approaches. © 2013 Springer-Verlag Berlin Heidelberg.}, keywords = {volatile organic compounds; Production process; Greenhouse gases; Process integration; Industrial research; Research efforts; Assessment; Reducing emissions; Process intensification; Advanced engineerings; Process interrogation; Process intensifications}, year = {2013}, eissn = {1618-9558}, pages = {417-422} } @inproceedings{MTMT:2509864, title = {Total site heat integration with seasonal energy availability}, url = {https://m2.mtmt.hu/api/publication/2509864}, author = {Liew, PY and Alwi, SRW and Klemeš, Jiri Jaromir and Varbanov, Petar and Manan, ZA}, booktitle = {16th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction}, doi = {10.3303/CET1335003}, unique-id = {2509864}, abstract = {Total Site Heat Integration (TSHI) approach has been extended to the Locally Integrated Energy Sectors (LIES) that include small scale industrial plants, renewable energy sources with variable supplies, and residential as well as commercial buildings as energy consumers with fluctuating demands. TS targeting methodology with Time Slices, which is comparable to Heat Integration for batch processes, have been introduced for a short-term, day-to-day analysis. Energy storage facility is integrated in the TS to address the problem of energy supply variation. However, previous studies have mostly dealt with the daily or short term variations. This work introduces an extended methodology for TS integration for the long-term energy supply and demand planning. The work is important in solving cases with a considerable temporal fluctuation of heat sources/sinks, in order to obtain more energy saving opportunities within a longer period of time (i.e., in the scale of weeks or even months). The energy fluctuation in processing plants may be caused by seasonal climate variations, long-term customer demands or even economic down-turn. Some other possibilities include operability issues and raw material availability. The methodology can also be implemented for district heating and cooling systems in countries with four seasons, assuming energy excess during the summer can be stored for use in other seasons e.g. during the winter. This methodology is demonstrated by a case study which involves integration of batch processing plants and space heating system together with cooling system which only operates during certain periods of time. Several scenarios which affect the long-term energy supply and demand have been assumed. © 2013, AIDIC Servizi S.r.l.}, keywords = {Economics; Renewable energy resources; Renewable energy source; Temporal fluctuation; Cooling systems; Industrial plants; Batch data processing; ENERGY AVAILABILITY; Short-term variations; Thermoelectric equipment; Office buildings; Material availability; Energy fluctuation; District heating and cooling systems; Commercial building}, year = {2013}, pages = {19-24} } @inproceedings{MTMT:2381198, title = {Web technologies for interactive graphical E-learning tools in engineering education}, url = {https://m2.mtmt.hu/api/publication/2381198}, author = {Grigorov, A and Angelov, A and Detcheva, E and Varbanov, Petar}, booktitle = {20th International Congress of Chemical and Process Engineering, CHISA 2012 and 15th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2012}, doi = {10.3303/CET1229267}, unique-id = {2381198}, year = {2012}, pages = {1597-1602} } @article{MTMT:2199085, title = {A numerical technique for Total Site sensitivity analysis}, url = {https://m2.mtmt.hu/api/publication/2199085}, author = {Liew, PY and Wan, Alwi SR and Varbanov, Petar and Manan, ZA and Klemeš, Jiri Jaromir}, doi = {10.1016/j.applthermaleng.2012.02.026}, journal-iso = {APPL THERM ENG}, journal = {APPLIED THERMAL ENGINEERING}, volume = {40}, unique-id = {2199085}, issn = {1359-4311}, abstract = {Total Site Heat Integration (TSHI) is a methodology for the integration of heat recovery among multiple processes and/or plants interconnected by common utilities on a site. Until now, it has not been used to analyze a site's overall sensitivity to plant maintenance shutdown and production changes. This feature is vital for allowing engineers to assess the sensitivity of a whole site with respect to operational changes, to determine the optimum utility generation system size, to assess the need for backup piping, to estimate the amount of external utilities that must be bought and stored, and to assess the impact of sensitivity changes on a cogeneration system. This study presents four new contributions: (1) Total Site Sensitivity Table (TSST), a tool for exploring the effects of plant shutdown or production changes on heat distribution and utility generation systems over a Total Site; (2) a new numerical tool for TSHI, the Total Site Problem Table Algorithm (TS-PTA), which extends the well-established Problem Table Algorithm (PTA) to Total Site analysis; (3) a simple new method for calculating multiple utility levels in both the PTA and TS-PTA; and (4) the Total Site Utility Distribution (TSUD) table, which can be used to design a Total Site utility distribution network. These key contributions are clearly highlighted via the application of the numerical technique to two Case studies. © 2012 Elsevier Ltd. All rights reserved.}, keywords = {Algorithms; Numerical methods; MAINTENANCE; Total site; Waste heat; Process integration; Numerical approaches; Plant shutdowns; Utility targets; Site minimum utility targets; Numerical approach; Heat cascade; Total Site Problem Table Algorithm (TS-PTA)}, year = {2012}, eissn = {1873-5606}, pages = {397-408} } @article{MTMT:2199078, title = {Capital cost targeting of total site heat recovery}, url = {https://m2.mtmt.hu/api/publication/2199078}, author = {Nemet, Andreja and Varbanov, Petar and Kapustenko, P and Durgutoví, A and Klemeš, Jiri Jaromir}, doi = {10.3303/CET1226039}, journal-iso = {CHEM ENG TR}, journal = {CHEMICAL ENGINEERING TRANSACTIONS}, volume = {26}, unique-id = {2199078}, issn = {1974-9791}, abstract = {A single uniform T min specification had been mostly considered for the evaluation of the trade-off between the heat recovery and the capital cost for individual processes. However, exploiting heat recovery on Total Site level offers additional potential for energy saving (Klemeš et al., 1997). The current work deals with the evaluation of the capital cost for the generation and use of site utilities (e.g. steam, hot water, cooling water), which enables the evaluation of the trade-off between heat recovery and capital cost targets for Total Sites. The procedure involves the construction of Total Site Profiles and Site Utility Composite Curves and the further identification of the various utility generation and use regions at the profile-utility interfaces. This is followed by the identification of the relevant Enthalpy Intervals. The lower bound of the required heat transfer area can be then estimated which enables its further use in optimisation procedures. Copyright © 2012, AIDIC Servizi S.r.l.}, keywords = {LOWER BOUNDS; Costs; Waste heat; Hot water; Optimisations; Composite curves; Heat transfer area; Capital costs}, year = {2012}, eissn = {2283-9216}, pages = {231-236} } @article{MTMT:2199082, title = {Total Site targeting with process specific minimum temperature difference (ΔT min)}, url = {https://m2.mtmt.hu/api/publication/2199082}, author = {Varbanov, Petar and Fodor, Z and Klemeš, Jiri Jaromir}, doi = {10.1016/j.energy.2011.12.025}, journal-iso = {ENERGY}, journal = {ENERGY}, volume = {44}, unique-id = {2199082}, issn = {0360-5442}, abstract = {The paper deals with an extension of Total Site Integration to Locally Integrated Energy Sectors producing more realistic utility and heat recovery targets. Process Heat Integration (based on Pinch Analysis) aims to minimise the amount of energy mostly used in industrial processes. It is still an open question how to solve the Total Site targeting problem when different values for the minimum allowed temperature differences (ΔT min) are specified for each process on the site. A single uniform ΔT min for all processes integrated in a Total Site, as practiced to date, cannot be generally optimal. Such an assumption may be too simplifying and lead to inadequate results due to imprecise estimation of the overall Total Site heat recovery targets. The modified Total Site targeting procedure, proposed in this paper, allows obtaining more realistic heat recovery targets for Total Sites. It is illustrated with a case study for Locally Integrated Energy Sectors, also providing a comparison with the traditional targeting procedure and the advantages offered by the modified one. © 2011 Elsevier Ltd.}, keywords = {Optimization; integration; energy resource; Heat Transfer; CHP; Chandipura virus; Heat integration; Waste heat; Pinch analysis; temperature anomaly; hen; site investigation; TSP; Total Site targeting; Process specific ΔT; LP (Steam); Locally integrated energy sectors; HW; HI; GCC; Extended pinch analysis; CW; Energy sector}, year = {2012}, eissn = {1873-6785}, pages = {20-28} } @article{MTMT:2381217, title = {Software tools overview: Process integration, modelling and optimisation for energy saving and pollution reduction}, url = {https://m2.mtmt.hu/api/publication/2381217}, author = {Lam, HL and Klemeš, Jiri Jaromir and Kravanja, Z and Varbanov, Petar}, doi = {10.1002/apj.469}, journal-iso = {ASIA-PAC J CHEM ENG}, journal = {ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING}, volume = {6}, unique-id = {2381217}, issn = {1932-2135}, year = {2011}, eissn = {1932-2143}, pages = {696-712} } @article{MTMT:1694209, title = {Integration and management of renewables into total sites with variable supply and demand}, url = {https://m2.mtmt.hu/api/publication/1694209}, author = {Varbanov, Petar and Klemeš, Jiri Jaromir}, doi = {10.1016/j.compchemeng.2011.02.009}, journal-iso = {COMPUT CHEM ENG}, journal = {COMPUTERS & CHEMICAL ENGINEERING}, volume = {35}, unique-id = {1694209}, issn = {0098-1354}, year = {2011}, eissn = {1873-4375}, pages = {1815-1826} } @article{MTMT:2381214, title = {Utility systems operation: Optimisation-based decision making}, url = {https://m2.mtmt.hu/api/publication/2381214}, author = {Velasco-Garcia, P and Varbanov, Petar and Arellano-Garcia, H and Wozny, G}, doi = {10.1016/j.applthermaleng.2011.05.046}, journal-iso = {APPL THERM ENG}, journal = {APPLIED THERMAL ENGINEERING}, volume = {31}, unique-id = {2381214}, issn = {1359-4311}, year = {2011}, eissn = {1873-5606}, pages = {3196-3205} } @inproceedings{MTMT:1832996, title = {Implementation and pitfalls of process integration}, url = {https://m2.mtmt.hu/api/publication/1832996}, author = {Klemeš, Jiri Jaromir and Varbanov, Petar}, booktitle = {PRES 2010: 13th Conference on process integration, modelling and optimisation for energy saving and pollution reduction}, doi = {10.3303/CET1021229}, unique-id = {1832996}, abstract = {Process Integration (PI) is a powerful tool for designing and optimising processes for energy efficiency and sustainability. Sometimes its simplicity is misunderstood. Even PI has some potential pitfalls related to the problem formulation and data extraction. Regardless of the precision used, the results largely depend on solving the correct problem - i.e. if the formulation reflects the reality adequately and if the appropriate data have been extracted. An incorrect data extraction has been the reason for conclusions that PI did not work. When revisiting most of those problems, it becomes obvious that it was not a fault of the PI methodology, but an inexperienced user. Copyright © 2010 AIDIC Servizi S.r.l.}, keywords = {Optimization; pollution; integration; data mining; Energy conservation; Energy efficiency; Problem formulation; Data extraction; Process integration}, year = {2010}, pages = {1369-1374} } @article{MTMT:34202539, title = {Process integration, modelling and optimisation for energy saving and pollution reduction}, url = {https://m2.mtmt.hu/api/publication/34202539}, isbn = {9788895608044}, author = {Friedler, Ferenc}, doi = {10.3303/CET0918001}, journal-iso = {CHEM ENG TR}, journal = {CHEMICAL ENGINEERING TRANSACTIONS}, volume = {18}, unique-id = {34202539}, issn = {1974-9791}, abstract = {Energy saving, global warming and greenhouse gas emissions have become major technological, societal, and political issues. Being closely related to energy supply, they are of strategic importance. Various conferences are being organised for providing international avenues for closer cooperation among researchers. The series of conferences "Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction" (PRES) play a pioneering role in contributing to the solution of the related problems through presenting new methodologies and initiating cooperation among participants that often result in international projects. The PRES conferences have been dedicated both to the theoretical and to the practical components of the problems of energy saving and pollution reduction. The PRES series, established twelve years ago, was originally dedicated to energy integration and improving thermal efficiency. Following the new challenges and priorities the scope of the conferences has been extended to include all energy and pollution prevention related issues. This contribution focuses on the period covered by PRES, reviewing at least some major presentations contributing to the development of process integration and optimisation tools for energy saving and pollution reduction. The development of the mathematical models has been covered as well, since it is closely related to the area. Copyright © 2009, AIDIC Sarvizi S.r.l.}, year = {2009}, eissn = {2283-9216}, pages = {1-26} } @article{MTMT:2381287, title = {What's the price of steam?}, url = {https://m2.mtmt.hu/api/publication/2381287}, author = {Smith, R and Varbanov, Petar}, journal-iso = {CHEM ENG PROG}, journal = {CHEMICAL ENGINEERING PROGRESS}, volume = {101}, unique-id = {2381287}, issn = {0360-7275}, year = {2005}, eissn = {1945-0710}, pages = {29-33} } @article{MTMT:1674706, title = {Synthesis of industrial utility systems: Cost-effective de-carbonisation}, url = {https://m2.mtmt.hu/api/publication/1674706}, author = {Varbanov, Petar and Perry, S and Klemeš, Jiri Jaromir and Smith, R}, doi = {10.1016/j.applthermaleng.2004.06.023}, journal-iso = {APPL THERM ENG}, journal = {APPLIED THERMAL ENGINEERING}, volume = {25}, unique-id = {1674706}, issn = {1359-4311}, abstract = {The production processes on industrial sites require large amounts of heating, cooling and power for their operation. Therefore, the optimal synthesis of utility systems is of central interest to engineers in the process industries. Recently, the problem of the global climate change has brought forward the question of reducing significantly the emissions of greenhouse gases into the atmosphere. In this paper, a new approach is presented for cost-effective de-carbonisation of new utility systems in the process industries. This is based on improved models of utility equipment components and an improved model and procedure for optimal synthesis of utility systems. © 2004 Elsevier Ltd. All rights reserved.}, keywords = {Mathematical models; parameter estimation; Synthesis (chemical); cooling; heating; Cost effectiveness; Steam boilers; Optimal synthesis; Industrial utility systems; De-carbonization; Greenhouse effect}, year = {2005}, eissn = {1873-5606}, pages = {985-1001} } @article{MTMT:2381293, title = {Top-level analysis of site utility systems}, url = {https://m2.mtmt.hu/api/publication/2381293}, author = {Varbanov, Petar and Perry, S and Makwana, Y and Zhu, XX and Smith, R}, doi = {10.1205/026387604774196064}, journal-iso = {CHEM ENG RES DES}, journal = {CHEMICAL ENGINEERING RESEARCH AND DESIGN}, volume = {82}, unique-id = {2381293}, issn = {0263-8762}, year = {2004}, eissn = {1744-3563}, pages = {784-795} } @article{MTMT:2381295, title = {Modelling and optimization of utility systems}, url = {https://m2.mtmt.hu/api/publication/2381295}, author = {Varbanov, Petar and Doyle, S and Smith, R}, doi = {10.1205/026387604323142603}, journal-iso = {CHEM ENG RES DES}, journal = {CHEMICAL ENGINEERING RESEARCH AND DESIGN}, volume = {82}, unique-id = {2381295}, issn = {0263-8762}, year = {2004}, eissn = {1744-3563}, pages = {561-578} } @article{MTMT:2381312, title = {HEN's operability analysis for better process integrated retrofit}, url = {https://m2.mtmt.hu/api/publication/2381312}, author = {Zhelev, TK and Varbanov, Petar and Seikova, I}, journal-iso = {HUNG J IND CHEM}, journal = {HUNGARIAN JOURNAL OF INDUSTRY AND CHEMISTRY}, volume = {26}, unique-id = {2381312}, issn = {0133-0276}, year = {1998}, eissn = {2450-5102}, pages = {81-88} }