Mechanical Engineering :: Heat and Mass Transfer
- Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called
- The rate of heat flow through a body is Q = [kA (T₁ - T₂)]/x. The term x/kA is known as
-
Depending on the radiating properties, a body will be white when
(Where a = absorptivity, p = reflectivity, x = transmissivity) -
Depending on the radiating properties, body will be transparent when
(Where a = absorptivity, p = reflectivity, x = transmissivity) - The expression Q = ρ AT4 is called
- In heat transfer, conductance equals conductivity (kcal/hr/sq.m/°C/cm) divided by
- The time constant of a thermocouple is
- The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit
- Heat transfer takes place as per
- Thermal diffusivity is
Whatsapp
Facebook
