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Session: Poster session & Sponsor Exhibition
Session starts: Monday 07 October, 14:00

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Amir Mohammad Haddad Momeni ()
Mohammad Reza Jaffari Nasr ()
Seyed Masoud Haji Seyedi ()
Venus Shaker ()

Abstract:
A.M. Haddad Momeni*, M.R. Jaffari Nasr† S.M. Haji Seyedi‡ and V. Shaker‡ *Moshanij Consulting Engineers Co, No. 20, 107 St, Golsar, Rasht, I. R. Iran e-mail: haddad_momeni@moshanij.com Web page: http://www.moshanij.com ABSTRACT In this paper, pinch technology is applied in a transition gas station to decrease energy cost in Organic Rankine Cycle (ORC). A gas station which used gas engine as a driving part of compressor is considered. There are potentials for heat recovery available from waste heats at inner and after cooler of compressor, also at the flue gas, water and oil cooler of gas engine. In addition, there are available cold utilities as air cooler, cooling tower and hybrid cooling tower. So, optimization of process to select the best cold utilities is performed. The considered working fluids are R245fa, Solkatherm SES36, 1234ze and HDR-14. In this study, as a first step, a pre-design model of ORC and the process flow diagram of gas station streams were built and simulated with different working fluids runs. In the second step, components and system cost models were built and the simulations again carried out to evaluate the cost effectiveness of systems associated with different fluids. The results indicated that for the same fluid, the point with high performance and the cost-effectiveness is not match. The operating point for maximum power is not corresponded to the total specified revenue. The benefits of integrating ORC and the applicability of the proposed methodology have been demonstrated through illustrative examples in one of Iranian gas station as a case study. Keywords: Gas Station, Pinch Technology, Organic Rankine Cycle, Economic Optimization. REFERENCES [1] Nishith B. Desai, Santanu Bandyopadhyay, “Process integration of organic Rankine cycle”, Elsevier. Energy Press, Vol. 34, pp. 1674–1686, (2009). [2] R. Smith, Chemical Process Design and Integration, 2nd Edition, John Wiley & Sons, 2005