Question: A house has an electric heating system that consists of a 300 - W fan and an electric resistance heating element placed in a duct.

A house has an electric heating system that consists of a 300 - W fan and an electric resistance heating element placed in a duct. Air flows steadily through the duct at a rate of 0.6 kg/s and experiences a temperature rise of 7°C. The rate of heat loss from the air in the duct is estimated to be 300 W. Determine the power rating of the electric resistance heating element.

Step by Step Solution

★★★★★

3.38 Rating (167 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

A house is heated by an electric resistance heater placed in a duct The power rating of the elect... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

837-ME-T (5050).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

To save on heating costs, the owner of a greenhouse keeps 660 kg of water around in barrels. During a winter day, the water is heated by the sun to 10.0 C. During the night the water freezes into ice...

A passive solar house that is losing heat to the outdoors at 3C at an average rate of 50,000 kJ/h is maintained at 22C at all times during a winter night for 10 h. The house is to be heated by 50...

A passive solar house that is losing heat to the outdoors at 5C at an average rate of 50,000 kJ/h is maintained at 22C at all times during a winter night for 10 h. The house is to be heated by 50...

A house has an electric heating system that consists of a 3 0 0 - W fan and an electric resistance heating element placed in a duct. Air flows steadily through the duct at a rate of 0 . 6 6 0 kg / s...

A house has an electric heating system that consists of a 300-W fan and an electric resistance heating element placed in a duct. Air flows steadily through the duct at a rate of 0.6 kg/s and...

A house has an electric heating system that consists of a 300W fan and an electric resistance heating element placed in a duct. Air flows steadily through the duct at a rate of 0.6kg/s and...

An electric heating system of high pressure air consists of a simple duct with resistance heaters. Air is heated as it flows over resistance wires. Consider a 150-kW electric heating system. Air...

The heating system of a building consists of an electric heater placed in the air duct and a 300 Watt fan. It flows in the air duct at a speed of 0.50 kg/sec, where its temperature increases by 7C....

Based on a comparison of China, India and African countries, discuss the impact of globalization in the three cases: what policies have led some states to be successful in achieving growth and...

A merry-go-round is rotating at an angular speed of 0.2 radians/s. Its motor falls off and it rotates freely. A technician jumps on the edge along the direction of the radius. The angular velocity...

Which of the following statements is correct regarding both debt and common shares of a corporation? Common shares typically have a fixed maturity date, but debt does not. Common shareholders and...

Visit www.acnielsen.co.uk and www.tnsofres.com/superpanel. Review the information that is available on the services that ACNielsen and TN Sofres offer to the market. At the ACNielsen site you should...

A horizontal cylinder having a diameter of 5 cm and an emissivity of 0.5 is placed in a large room, the walls of which are maintained at 35oC. The cylinder loses heat by natural convection with an h...

A 10-by-10-cm plate is maintained at 80oC and inclined at 45o with the horizontal. Calculate the heat loss from both sides of the plate to room air at 20oC.

A 5-by-5-cm plate is maintained at 50oC and inclined at 60o with the horizontal. Calculate the heat loss from both sides of the plate to water at 20oC.

Knight Inventory Systems, Incorporated, has announced a rights offer. The company has announced that it will take two rights to buy a new share in the offering at a subscription price of $54. At the...

Pitt Enterprises manufactures jeans. All materials are introduced at the beginning of the manufacturing process in the Cutting department. Conversion costs are incurred uniformly throughout the...

Principles of Risk and Management Insurance (12 ed) Ch 21 Case Application James and Megan Webb recently purchased a home for $300,000. The home is insured under an HO-3 policy for $250,000 with no...