What is the necessary condition at the surface of the tubes

Assignment Help Computer Engineering

Reference no: EM131512494

Question: At a particular region in a steam condenser the fluid is a mixture of 80 percent steam (by mass) and 20 percent air. The total pressure is 6.75 kPa, and the temperature is that of saturated steam at that pressure. What is the necessary condition at the surface of the tubes for condensation to take place? In simple condensation the resistance to heat transfer is usually considered to be entirely that of the liquid film that forms on the surface. How does the present problem differ? Suppose the liquid filin has an average thickness of 0.1 mm; investigate the, effect of the air on the overall resistance to heat transfer between the tube metal surfaces and the free-stream mixture.

Reference no: EM131512494

Questions Cloud

Estimate the time required for consumption of droplet : In a diesel engine the fuel is injected as small droplets, and after an initial ignition delay, during which time part of the fuel vaporizes and then burns.

How are humans impacting the ocean : How are humans impacting the ocean?Explain how the citation supports your argument?

Calculate the evaporation rate from a snow bank : Calculate the evaporation (sublimation) rate from a snow bank if the ambient air temperature is - 23°C, solar energy is falling on the bank at a rate.

Identify three short-term and three long-term goals : Identify at least three short-term goals. Explain why you selected each goal and how they relate to your professional career development.

What is the necessary condition at the surface of the tubes : At a particular region in a steam condenser the fluid is a mixture of 80 percent steam (by mass) and 20 percent air. The total pressure is 6.75 kPa.

Evaluate your clinical skills and develop goals : Identify at least three strengths.Explain why you consider these strengths and what you can do to maintain them in your practice.

Discuss the single-pass cross-flow arrangement : In the design of an energy-efficient house, a difficulty arises when the house is sealed up so well that various types of air pollution become both unpleasant.

Explain the role of nurse practitioners in clinical settings : Explain the role of nurse practitioners in clinical settings.Develop goals and objectives for the Practicum Experience in this course.

Which pair of surfaces provide minimum-volume heat exchanger : It is desired to specify the dimensions of a heat exchanger whose function is to heat 3 kg/s of air at 1 atm from 18°C to 90°C using an available supply.

User Account

All Pages