An electrically heated square plate measuring 20 cm on a side is immersed vertically in water at atmospheric pressure. As the electrical energy supplied to the plate is increased, its surface...

An electrically heated square plate measuring 20 cm on a side is immersed vertically in water at atmospheric pressure. As the electrical energy supplied to the plate is increased, its surface temperature rises above that of the adjacent saturated water. At low power levels the heat-transfer mechanism is natural convection, then becoming a nucleate-boiling phenomenon at higher
Ts. At what value of
T are the heat fluxes due to boiling and natural convection the same? Plot q/A|
_convection, q/A|_boiling,
and q/A|_total
versus
T values from 250 to 300 K.