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

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Seyed Masoud Haji Seyedi (Senior Expert in Energy Engineering)
Seyed Majid Hashemian ()
Seyed Mohammad Reza Abolhassani (M.Sc Student, Sharood University, Iran)
Fiete Dubberke (Paderborn University, Germany)
Amir Mohammad Haddad Momeni ()

Abstract:
In this paper a new methodology is proposed for appropriate integration and optimization of an ORC as a cogeneration process with the background process to generate shaft-work. Hot source and cold sink of ORC cycle has been used as a hot and cold stream respectively in Pinch Design Method (PDM) for both retrofit and grass-root project. The considered working fluids are R245fa, Solkatherm SES36, 1234ze and HDR-14. First, a pre-design model of the ORC and process flow diagram was built and simulations ran with different working fluids. In second step, components and system cost models were built and simulations carried out to evaluate the cost effectiveness of systems associated with different fluids. It has been illustrated that the choice of cycle configuration for appropriate integration with the background process depends on the heat rejection profile of the background process (i.e., the shape of the below pinch portion of the process grand composite curve). Results also indicate that for the same fluid, the point of high performance and that cost-effectiveness does not match. The operating point for maximum power doesn’t correspond to the total specific income. The benefits of integrating ORC with the background process have been demonstrated through illustrative examples. Keywords: Process integration, Pinch Technology, Organic Rankine Cycle, Economic Optimization.