Thermal Conductivity: Ratio of Conductivities of Two Materials

Please see the attached file for the entire problem. Problem. The ratio of thermal Conductivity of material 1 to the thermal Conductivity of material 2 is (a)Less than 1 (b) greater than 1 (c) equal to 1 (d) infinity And why? Give reason There is a plot given in problem file in which both material shown.

Heat Transport: Convection and Equivalent Thermal Circuit for a Wall of Brick and Plaster

Please see the attached file for the entire problem. -Diagram- Find Interior Temperature Equivalent thermal circuit Thickness of plaster if heat loss is reduced by 30%

Heat Transport: Unit length heat loss of pipe assuming no radiation heat loss

Please see the attached file for the entire problem. Find unit length heat loss of pipe.

Heat Transport -- convection -- equivalent thermal circuit

In this problem we required interior temperatures of a circuit combining brick and plaster, also calculate the thickness of plaster for reducing the heat loss.

18 Dimensionless Numbers used in momentum transfer with their physical significance

Write dimensionless numbers used in momentum transfer with their formula and physical significance.