A heat pump heating system supplies 5.8kW of thermal energy to the inside of a house. The external surfaces of the house have an average temperature of 2 degrees celcius on a cold day. The average thickness (x) and thermal conductivity (k) of the walls, ceilling and floors is 100mm and 0.04W/m.K respectively
1. If the house size is approximately 30 by 10m and the wall height is 2.6m what is the maximum temperature the inside of the house will heat up to once steady state is reached?
Equation:
J(heat) = Q/ At = k(T1-T2)/x
Where J(head) = heat flux, A = heat transfer area (m^2), Q = heat transfer (J), t = time, t1 = inside wall temperature, t2 = outside wall temperature
2. Suggest two ways the temperature in the house could be increased without buying a larger heater.