Q3 You are given the task of designing a high-rise office building in the city center of Kangar, Perlis. In assuring the thermal comfort inside the building, evaluate FIVE (5) mechanisms to regulate the thermal associated with the nature of the building. You may aid with appropriate diagram and related calculations.

V:01 Expert Q&A Done Question 1: In your own words, write down the differences between thermodynamic and heat transfer. (3 Marks) Question 2: Estimate the heat loss per square metre of surface through a brick wall 0.5 m thick when the inner surface is at 400 K and the outside surface is at 300 K. The thermal conductivity of the brick may be taken as 0.7 W/mK. (2 Marks) Question 3: A furnace is constructed with 0.20 m of firebrick, 0.10 m of insulating brick, and 0.20 m of building brick. The inside temperature is 1200 K and the outside temperature is 330 K. If the thermal conductivities are as shown in the figure below, estimate the heat loss per unit area. (5 Marks) 1200 K 330 K Insulating brick X-0.10m k= 0.21 Ordinary brick X=0.20 m Fire brick X= 0.20 m k= 1.4 k= 0.7 (W/mK)

We need to build a heatable warehouse with a capacity of 2000 cubic meters. Because the building is located in a milieu-valuable area, only a pitched roof building with a 45- degree roof slope is allowed to be built there (see the attached picture), other building shapes aren't permitted. However, the width (a), length (b) and ridge height (c) can be varied. a 45° b Since the warehouse owner is one of the local leaders of Global Green Turn, it is his firm wish that the warehouse energy (heat) loss should be as small as possible. According to the builder, the building's walls and roof have both exactly the same heat resistance, but there's no heat loss through the floor into the ground at all. Consequently - we have to design a warehouse with a volume of 2000 cubic meters with the smallest possible total area of all walls and roofs. Task: What should be the actual width (a), length (b) and roof ridge height (c) of such a building?

List one type of heat energy transfer in your residence. Be sure to justify your answer with a brief explanation.