Post on 17-Dec-2015
Introduction
• A copper pipe wrapped with heated tape is needed to direct blow-by gasses from the engine crank case to a centrifuge pump.
Our Tube
Objective: To find the length needed (L) to heat gas from 25°C to 130°C and from 190°F to 230°F.
Problem Setup: assumptions
Assumptions:•Heat tape creates a constant heat flux (qs”)
•Tube is perfectly insulated with a fiberglass coating. (no heat is lost)
Conclusion and Recommendations
Using this analysis and given assumptions, heating a fluid, flowing at these velocities, using a typical heat tape is a plausible solution for this application. For the majority of constant flow conditions, a recommended length of minimum 0.545 m is needed to eliminate condensation.
Appendix
Sources:
•Dr. Soloviev’s assistance in setting up the problem
•Fundamentals of Heat and Mass Transfer (7th edition)