Retrofit Of Pressure Drop Constrained Heat Exchanger Networks

The study of retrofit of heat exchanger networks is usually restricted to constant heat transfer coefficients, and pressure drop constraints due to the additional exchanger area is neglected. In this work, a new approach considering the distribution of heat transfer area and pressure drop in retrofit is presented. The problem is described as a non-linear model, and the additional area required for the new network condition and available pressure drop are estimated based on economical optimization (or process requirements).201514691480Jegede, F.O., (1990) Power, Capital and Energy Cost Trade-offs in Heat Exchanger Networks, , PhD Thesis, UMIST, ManchesterPolley, G.T., Panjeh Shahi, M.H., Jegede, F.O., Pressure drop considerations in the retrofit of heat exchanger networks (1990) Trans. IChemE, 68, pp. 211-220Polley, G.T., Panjeh Shahi, M.H., Interfacing heat exchanger network synthesis and detailed heat exchanger design (1991) Trans IChemE, 69, pp. 445-457Shokoya, C.G., (1992) Retrofit of Heat Exchanger Network for Debottlenecking and Energy Saving, , PhD Thesis, UMIST, ManchesterTjoe, T.N., Linnhoff, B., Using pinch technology for process retrofit (1986) Chem. Eng., 93, pp. 47-6