In the name of God

Greetings everyone!
I'm a student of mech. eng. and I'm working on a Diesel Power Plant to make it a CHP (Combined Heat and Power) Plant. I don't know how to design it's piping system for cooling with water.

* Do the Valves and bypasses differ from other kinds of power plants?
* Do you know any references that help on "Design of valves and bypasses" of Diesel Power Plants?

thanks