Question

Consider a 10-m-long smooth rectangular tube, with a 50 mm and b 25 that is maintained at a constant surface temperature. Liquid water enters the tube at 20°C with a mass flow rate of 0.01 kg/s. Determine the tube surface temperature necessary to heat the water to the desired outlet temperature of 80°C. (30p)

Answer 1

Answer:

Water flows at the rate of $0.1500 \mathrm{~kg} / \mathrm{min}$ through a tube and is heated by a heater dissipating $25.2 \mathrm{~W}$. The inflow and outflow water temperatures are $15.2^{\circ} \mathrm{C}$ and $17.4^{\circ} \mathrm{C}$, respectively. When the rate of flow is increased to $0.2318 \mathrm{~kg} / \mathrm{min}$ and the rate of heating to $37.8 \mathrm{~W}$, the inflow and outflow temperatures are unaltered. Find: (A) The specific heat capacity of water. (B) The rate of loss of heat from the tube.

Explanation:

hope it halpful give me star