In this article, (and video above), we’re going to calculate the heat transfer through a concrete wall. This question forms part of the Mechanical section of the FE Exam and will give you a better understanding of what you can expect during the exam. This week’s problem was solved by Enrique Ivers, an Engineer in Training.
A concrete wall is 20 cm thick and has an overall thermal resistance of 0.2 m2 ·°C/W. The temperature difference between the two wall surfaces is 5°C. What is most nearly the heat transfer through the wall?