Determine the amount of heat lost through the walls

Reference no: EM131074706

Consider an electrically heated house whose walls are 9 ft high and have anR-value of insulation of 13 (i.e., a thickness to thermal conductivity ratio ofL/k = 13 hft2 °F/Btu). Two of the walls of the house are 40 ft long and theothers are 30 ft long. The house is maintained at 75 °F at all times, while thetemperature of the outdoors varies. Determine the amount of heat lost throughthe walls of the house on a certain day during which the average temperature ofthe outdoors is 45 °F. Values of heat transfer coefficients for combinedconvection and radiation are 1.46 BtuJhft2 °F for the inner surface of the walls,and 4.0 Btu/hft2 °F for the outer surface of walls.

Reference no: EM131074706

Questions Cloud

Write a review paper about article community collaboration : Write a review paper about the article "Community Collaboration: An Analysis of the Community's Readiness". You will create a plan for forming a community collaboration with the goal of solving or addressing the problem.

What is the pressure of the gas : What is the pressure of the gas?

Overview of the company and current operating position : Your report must address the following key areas: Overview of the company and current operating position, Review of company's international competitive strategy and Existing organisational design structure and control issues

Decrease in the price of umbrellas : If the elasticity of supply for umbrellas is 1.1, then a decrease in the price of umbrellas of 20% will (Click to select)increasedecrease the quantity supplied by %

Determine the amount of heat lost through the walls : Determine the amount of heat lost throughthe walls of the house on a certain day during which the average temperature ofthe outdoors is 45 °F. Values of heat transfer coefficients for combinedconvection and radiation are 1.46 BtuJhft2 °F for the i..

Margaret indifference map : How would Margaret's indifference map look like? What is the Marginal Rate of Substitution (MRSA,B) between good A and B? Assume Margaret has an income of $10 and the prices of two goods are $1 each. How much of good A will be purchased?

Compute the standard deviation for the company : Compute the standard deviation for the company and the index. Compute the correlation coefficient between Tokyo Ltd and the index. Compute the beta for Tokyo Ltd

Steering future performance back toward the baseline : Determine the fundamental impact of not using a project management tool which clearly displays the effect of delays in delivering work packages, as required per your project schedule. Justify your response.

How they determine company performance : Discuss each of these eight performance measures in terms of what they measure and how they determine company performance. Then, relate them specifically to the company that you are working with by providing an example for each in regard to that c..

User Account

All Pages