Heat exchanger selection and design
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There are the following cases; discussions on how to select and design this heat exchanger are welcome: A condenser is required to use water as a coolant for condensing hydrocarbon mixtures containing non-condensable gases. The process conditions are as follows: Inlet/outlet temperatures (°C): hot fluid 98/49, cold fluid 40/42; Inlet pressure (MPa): hot 0.075, cold 0.02; Allowable pressure drop (KPa): hot 20, cold 60; Fouling thermal resistance: 0.0001 for both. It is now necessary to determine the type of condenser: vertical? Horizontal? Pipe-side condensation? Shell-side condensation? Discussion is welcome
Leave everything else aside – there’s already a problem with these numbers: the pressure at the condensate inlet is 0.02 MPa, with a permissible pressure drop of 60 kPa; how is it possible for the pressure to become negative?