- #1
R.C
- 9
- 0
Hello,
I have to design a heat exchanger for my uni course and am a little stuck with where to start. I know a little about LMTD and OHTC etc etc. my main starting problem is finding material properties for ethylene glycol, I have tried Engineering Toolbox but for the maximum temperatures I am a little stuck for a 50/50 mixture (the reason it is 50/50 is because of a previous assignment using this ratio). I could do with some pointers on this if any of you could help.
Here is the proposed problem:
"
A heat exchanger design is required to remove heat from the engine coolant of an MX5 sports car. The constraints for the problem are as follows:
I have to design a heat exchanger for my uni course and am a little stuck with where to start. I know a little about LMTD and OHTC etc etc. my main starting problem is finding material properties for ethylene glycol, I have tried Engineering Toolbox but for the maximum temperatures I am a little stuck for a 50/50 mixture (the reason it is 50/50 is because of a previous assignment using this ratio). I could do with some pointers on this if any of you could help.
Here is the proposed problem:
"
A heat exchanger design is required to remove heat from the engine coolant of an MX5 sports car. The constraints for the problem are as follows:
- The space envelope available is 850 mm by 400 mm by 45 mm
- The coolant enters at 110oC, leaves at 70oC and the exchanger is required to remove 99 kW of heat.
- The heat is dissipated into atmospheric air traveling at 100 km.h-1 through the heat exchanger.
- The material properties and flow rate of the coolant.
- The size, shape and material for the heat exchanger design.
- The thermal properties of the coolant, air and solid material.
- The overall thermal performance of the system."