Hi everyone,

I am trying to use the Matrix method in order to rearrange a heat exchanger network in a plant. to do this, I need to have an estimation of retrofit cost and it calls for Heat exchanger cost, piping cost and pressure drop cost. Is there any clear formula to calculate the heat exchanger cost (either new one or expanding an existing one). what about piping cost? and also the pressure drop cost (either in heat exchanger or in piping).

I have some equations which come from 90s and I am not sure if they are still valid or not. Moreover, that show significant difference in compare to Coulson and Richardson's series (regarding fixed cost).

Is there any reference that I can rely on?

I really appreciate if you could help me.

Thanks.