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Exergy analysis
Published in Kornelis Blok, Evert Nieuwlaar, Introduction to Energy Analysis, 2020
Kornelis Blok, Evert Nieuwlaar
Pinch analysis starts by the identification of all streams that need to be heated (‘cold streams’) and all streams that need to be cooled (‘hot streams’). The initial and target temperature, the mass flow rate m (in kg/s) and the heat capacity cp (in kJ·kg−1 · K−1) need to be determined for each of these streams. For convenience the product of m and cp is denoted as the heat capacity flow rate mcp (in kW/K).
Biorefinery Design Strategy: From Process Synthesis to Sustainable Design
Published in Carlos Ariel Cardona Alzate, Jonathan Moncada Botero, Valentina Aristizábal-Marulanda, Biorefineries, 2018
Carlos Ariel Cardona Alzate, Jonathan Moncada Botero, Valentina Aristizábal-Marulanda
Pinch analysis is a methodology to minimize the consumption of energy in processes by calculating and achieving energy targets that are thermodynamically feasible. This methodology was proposed in 1979 by Linnhoff and Flower [31]. This technique is one of the most mature and established methodologies for process integration and improvement. Different publications about this technique have been reported, and some of them are at the industrial level [32–34]. This methodology is considerably simple for application. Through the heat exchange of the hot and cold streams of the system, the requirements of additional utilities decrease considerably. It has been extended to other purposes of integration that are different from energy, such as mass integration [35], water pinch [36–38], and simultaneous integration of mass and HENs [39].
Applications
Published in Raj P. Chhabra, CRC Handbook of Thermal Engineering Second Edition, 2017
Joshua D. Ramsey, Ken Bell, Ramesh K. Shah, Bengt Sundén, Zan Wu, Clement Kleinstreuer, Zelin Xu, D. Ian Wilson, Graham T. Polley, John A. Pearce, Kenneth R. Diller, Jonathan W. Valvano, David W. Yarbrough, Moncef Krarti, John Zhai, Jan Kośny, Christian K. Bach, Ian H. Bell, Craig R. Bradshaw, Eckhard A. Groll, Abhinav Krishna, Orkan Kurtulus, Margaret M. Mathison, Bryce Shaffer, Bin Yang, Xinye Zhang, Davide Ziviani, Robert F. Boehm, Anthony F. Mills, Santanu Bandyopadhyay, Shankar Narasimhan, Donald L. Fenton, Raj M. Manglik, Sameer Khandekar, Mario F. Trujillo, Rolf D. Reitz, Milind A. Jog, Prabhat Kumar, K.P. Sandeep, Sanjiv Sinha, Krishna Valavala, Jun Ma, Pradeep Lall, Harold R. Jacobs, Mangesh Chaudhari, Amit Agrawal, Robert J. Moffat, Tadhg O’Donovan, Jungho Kim, S.A. Sherif, Alan T. McDonald, Arturo Pacheco-Vega, Gerardo Diaz, Mihir Sen, K.T. Yang, Martine Rueff, Evelyne Mauret, Pawel Wawrzyniak, Ireneusz Zbicinski, Mariia Sobulska, P.S. Ghoshdastidar, Naveen Tiwari, Rajappa Tadepalli, Raj Ganesh S. Pala, Desh Bandhu Singh, G. N. Tiwari
There are numerous other extensions of pinch analysis. Other than the examples listed above, pinch analysis has also been applied to aggregate production planning problems (Singhvi and Shenoy, 2002), isolated energy systems (Arun et al., 2007; Bandyopadhyay, 2011), human resource planning, and work scheduling (Foo et al., 2010). Over the years, pinch analysis has established itself as a structural tool for analyzing and conserving resources in numerous diversified applications, such as energy sector planning, financial analysis, supply chain management, isolated energy system design, batch process scheduling, carbon dioxide sequestration, etc. (Linnhoff, 1993; Smith, 2016).
Advances in state-of-art valorization technologies for captured CO2 toward sustainable carbon cycle
Published in Critical Reviews in Environmental Science and Technology, 2018
Shu-Yuan Pan, Pen-Chi Chiang, Weibin Pan, Hyunook Kim
On the other hands, process integration is defined as a holistic approach for designing the optimized process, which exploits the interactions between different unit processes to effectively utilize energy and resources, thereby minimizing operating costs. For CO2 valorization technologies, development of viable heat integration methods is an imperative task to improve the overall energy efficiency and emission profile of an emission source. Pinch analysis should be applied for designing the system to minimize energy consumption and to maximize heat recovery. This work should be systematically considered with heating and cooling systems as well as conventional air pollution control equipment, such as selective catalytic reduction (for nitrogen oxides), electrostatics precipitator (for particulate matters), and flue gas desulfurization (for sulfur oxides). For instance, the heat from exothermic reactions (such as carbonation) should be reused for other unit processes, e.g., material drying, process heating, and conversion of CO2 directly to methane (synthetic natural gas). A comprehensive performance evaluation also should be carried out to balance the 3E (engineering, economic, and environmental) performance for a variety of valorization technologies.