3 replies to this topic

[Eprocess]

Hello Experts,

 

I am assigned to define more than 20 shell and tube heat exchanger design problems for students, and it has to be liquid-liquid with no phase change. I should choose from real life processes, and I have less than ten so far. Can you help me by giving me some ideas what processes to choose. I would appreciate if you could mention the hot and cold side fluids and  inlet/outlet temperatures.

 

I have already chosen from some crude preheating applications, ethanol/water and methanol/ water. Can you help me find more?

 

 

Thank you

 

 

[Art Montemayor]

_{Tell us specifically the "less than 10" that you have identified - in the same manner that you want us to specify them to you.}

 

_{That information will help to avoid repetition and comply with what you need.}

[Eprocess]

_{Tell us specifically the "less than 10" that you have identified - in the same manner that you want us to specify them to you.}

 

_{That information will help to avoid repetition and comply with what you need.}

Sorry for that here they are (T is in Celsius, and hot side written first):

 

1- Ethanol (80->40) / Water (5->25)

2- Methanol (60->50) / Water (25->35)

3- Kerosene(200 ->100) / Crude (40 ->80 )

4- Water (80->60) / Acetic Acid (20->40)

5- Glycerol (118->70) / Water (15->50)

6- Straight run gasoline (150->105) / Crude (40 ->80 )

7- Diesel (214->90) / Crude (35->70 )

 

 

This is an open ended design project so I have chosen high temperature approaches to be on the safe side. Some of these might not make sense in terms of being of real life examples, but it was the best I could think of.

 

Thank you

[Pilesar]

Below are a few more liquid-liquid heat exchange services:

 

Diesel trim cooler: diesel shell side (fouling 0.001)/ Cooling water tube side (fouling 0.001) (Type AET, Uclean 135, Uservice 95)

Naphtha product cooler: Naphtha shell side (0.001 fouling)/ cooling water tube side (0.001 fouling) (Type AJT, Uclean 110, Uservice 95)

20% lean MEA sol'n shell side, 20% rich MEA sol'n tube side (Type BET, total fouling 0.0045, clean U 400, service U 145)

20% lean MEA soln shell side (fouling 0.002)/ Cooling water tube side (fouling 0.002) (Type AET, Uclean 345, Uservice135)

Cat reformer feed/bottoms exchanger: light naphtha shell side (fouling 0.001)/debutanized naphtha tube side (fouling 0.001) (Type BET, Uclean 125, Uservice 100)

Cat reformer bottoms trim cooler: debutanized naphtha shell side (0.001 fouling)/ cooling water tube side (0.001 fouling) (Type AET, Uclean 205, Uservice 141)

Vac Twr Pumparound shell side (fouling 0.003)/desalted crude tube side (fouling 0.003) (Type BET, Uclean 115, Uservice 70)

desalted crude shell side/ vac twr bottoms tube side (Type BET, total fouling 0.014, Uclean 60, Uservice 35)

oily condensate stripper foul water shell/ foul water tube (Type BET, total fouling 0.019, Uclean 390, Uservice 45)

Ejector condensate aftercooler: Cooling water shell side (foul 0.002)/ water tube (foul 0.001) (Double pipe, Uservice 145)