Pinch Analysis - Prepare Hot & Cold Composite Curve Manually

[@lissetedavila3227]

Thank you so much!

[@MohamadReziAbdulHamid]

@17:51 = 4*(150 - 135) = 60 kW (not 20 kW)

[@sitikhadijah9750]

Can we just assume the delta Tmin? Or there is calculation for the 25 celcius heat load placement before obtain delta Tmin

[@MohamadReziAbdulHamid]

You can use any delta Tmin as long as it is greater than zero..in fact, different processing will have different recommended delta Tmin. For example, low temperature/cryogenics will use small deltaT min. In my case i just simply use 10oC

[@sitikhadijah9750]

@@MohamadReziAbdulHamid Alright thanks for the informative content and the clarification 🙏🏻🙏🏻

[@MohamadReziAbdulHamid]

@@sitikhadijah9750 Just want to add...if u decide to choose different deltaTmin..for example 5oC. You just need to shift your hot composite curve such that the 'neck/pinch' is 5oC. Changing delta Tmin will change heat recovery n utility usage...of course if go detail - heat-x area, no of unit etc.

[@ammadjamil1749]

My POV, the recommended value for delta t min is shown in graphs (Cost or Area vs Delta T min) in textbook (PINCH ANALYSIS FOR ENERGY AND CARBON FOOTPRINT REDUCTION) is around 10 to 20. This typically will give maximum efficiency with little to no drawbacks. Hope that helps.

[@websterbwalyatechnology9789]

awesome