1.1 Energy Balance including Metabolic Heat under Steady Con- ditions By now we are all familiar with how the classroom temperature increases between the time we start and the time we end the lecture. For now, we would like to calculate the possible change in temperature due to the metabolic heat we generate. Consider the walls, including windows, to be perfectly insulating, i.e., o heat flow. Also, for simplicity, consider the entire room to be at one temperature. Colder air comes in and reaches the temperature of the room through mixing, and this air leaves at the same rate through another door of the same size. Consider steady state when the room temperature has reached a constant value. 1) Perform an energy balance for the room in terms of metabolic heat we generate, incoming colder air temperature, air flow rate, air properties, and other dimensions from which you can calculate the room temperature, T. 2) Consider an incoming colder air temperature of 25C and metabolic heat generation of 60 W per person (a total of 70 persons in the room including the instructor). The door dimensions are 1 m x 2.5 m and the average air velocity through the doors

1), 2), 3) and 4), I'd appreciate it if you could release them all