Hi,
I have a small suggestion to you. Why don't you try your storage tank in spherical shape instead of going to conventional cylider.
In the case of spherical shape you are compelled to construct the storage tank with D/H ratio = 1. This nullifies the problems posed by civil works as per the...
I hope the following solution can satisfy your query:
Let the streams be S1 and S2.
S1 to be cooled to 60C; S2 to be cooled to 30C;
1) Pass both S1 and S2 into a heat exchanger. Let the S1 and S2 cooled to 60C. Collect S1 and S2. Recycle S2 to the same heat exchanger. By this way you can...