I am designing a Tube heat-exchanger, similar to this:
My process requires water (at room temperature, 18C ~ 22C) that is being pumped out of a small tank (300 Liters) to be heated in a heat-exchanger to upto 65C. I have to use steam from a small steam generator (which we have to purchase) to heat that water.
The primary purpose of the system is to pump out water from a small tank (300 Liters) with a pump and spray it in another tank with a nozzle for cleaning the tank. Once the water is sprayed in the final tank, it will be drained. For effective cleaning, we need the water heated to around 60C ~ 65C.
I am looking for advice or a way to calculate how to design a simple heat exchanger for the system. The data i have at hand is the flow rate of water out of the pump, which is around 35 Liters per minute. The pipe at the pump outlet will be Stainless Steel, 1/2" in diameter (OD).
Can any one point me in the right direction or help me calculate the following :
1) Size of outer shell of heat exchanger, 2) Size/Diameter of inner tubes of heat exchanger, 3) Number of inner tubes (or passes) of heat exchanger, 4) Steam flow-rate to achieve my desired results.