Heat transfer

EXERCISE 2•A logic chip in a computer dissipates 3 W of power. The amount heat dissipated in 8 h and the heat flux on the surface of the chip are to be determined. Given top surface area 0.08 in2. 26 EXERCISE 3•A 1200 W iron is left on the ironing board with its base exposed to the air. The amount of heat the iron dissipates in 2 h, the heat flux on the surface of the iron base, and the cost of the electricity are to be determined.Given, base surface area: 0.015 m2Electricity charge: RM0.07/kWh28 EXERCISE 5•The inner and outer surfaces of a window glass are maintained at specified temperatures. The amount of heat transfer through the glass in 5 h is to be determined. The thermal conductivity of the glass is given to be k = 0.78 W/m°C. Area = 2m x 2m 31