15. A small wooden crib burns on the floor in the middle of a room. With a total energy release rate of 250 kW. Calculate the mass flow in the plume

at heights of 1.0 m and 1.9 m above the floor. Also calculate the plume temperatures at these heights. Assume the radiative fraction of energy loss is 22%. Assume ambient room temperature of 18 °C. Explain your answers. (5 Marks)