Determine the average condensation heat transfer

Assignment Help Mechanical Engineering

Reference no: EM131147843

Ammonia vapor at 300 K and 1.062 MPa pressure condenses onto the outside of a horizontal tube. The tube has an O.D. of 1.91 cm.

a. Suppose that the outside of the tube has a uniform temperature of 290 K. Determine the average condensation heat transfer coefficient of the tube.

b. The tube is cooled by cold water flowing through it and the thin wall of the copper tube offers negligible thermal resistance. If the bulk temperature of the water is 275 K at a location where the outside surface of the tube is at 290 K, what is the heat transfer coefficient inside the tube?

c. Using the heat transfer coefficients you just found, estimate the largest wall thickness for which the thermal resistance of the tube could be neglected. Discuss the variation the tube wall temperature around the circumference and along the length of the tube.

Reference no: EM131147843

Questions Cloud

Determine the temperature of the thermistor : Determine the temperature of the thermistor - If enough refrigerant has leaked that the thermistor sits in vapor, find the thermistor's temperature. Neglect thermal radiation.

What is the proper length of the pipe : Two reservoirs, which differ in surface elevation by 40 m, are connected by a new commercial steel pipe of diameter 8 cm. If the desired flow rate is 200 N/s of water at 20°C, what is the proper length of the pipe?

Explain the reasons why a manufacturer would pursue : Explain the reasons why a manufacturer would pursue or not pursue maximum or near maximum coverage for convenience goods. Explain the reasons why a manufacturer would pursue or not pursue maximum or near maximum coverage for shopping goods or ..

Write a project report on export marketing manager : Louis Vuitton also known as LV is a French Fashion House founded in the year 1854 by Louis Vuitton. The company operation in over 50 countries with more than 460 stores fulfilling the needs and desires of the customers worldwide.The chosen job based ..

Determine the average condensation heat transfer : Suppose that the outside of the tube has a uniform temperature of 290 K. Determine the average condensation heat transfer coefficient of the tube.

Analyze budgeting responsibilities of group practice manager : Analyze the fundamental financial and budgeting responsibilities of a group practice manager. Suggest the most important competency that a practice manager must demonstrate in order to effectively manage the practice's financial accounts.

Calculate the net present value and profitability index : BAK Corp. is considering purchasing one of two new diagnostic machines. -Calculate the net present value and profitability index of each machine. - Assume a 9% discount rate.

What is the heat transfer to the plate : Explain why the gas's pressure will affect the heat transfer to the coolant - What is the heat transfer to the plate if the plate

What are the basic rules for questionnaire coding : List and explain each of the three basic question-response formats. Indicate and describe the two variations for each one, and provide an example of each.

User Account

All Pages