Transparent-film-type heating element to its inner surface

Assignment Help Mechanical Engineering

Reference no: EM13712322

The rear window of an automobile is defogged by attaching a thin, transparent, film-type heating element to its inner surface. By electrically heating this element, a uniform heat flux may be established at the inner surface. The interior air temperature and convection coefficient are 25 degrees C and 10 W/m²K and the exterior (ambient) air temperature and convection coefficient are -10 degrees C and 65 W/m²K. The window glass is 4mm thick, and the thermal conductivity of glass is 1.4 W/mK. Find the electrical power that must be provided per unit window area to maintain an inner surface temperature of 15 degrees C using the resistance

Reference no: EM13712322

Questions Cloud

Consider an electron in first bohr orbit of hydrogen atom : Consider an electron in the first Bohr orbit of a hydrogen atom. What is the radius (in meters) of this orbit? What is the total energy (in eV) of the electron in this orbit?

Rotational speed of the driven sheave as well as belt speed : A v-belt drive system consists of a 12.4" diameter driving sheave and a 21.1" diameter driven sheave connected by a 5V belt. if the center distance is to be no more than 38" specify the longest possible standard belt that can be used and what the res..

Silicone rubber has a poissons ratio : Silicone rubber has a Poisson’s ratio of 0.4 Consider a silicone rubber drain hose for a surgical procedure. The hose has an outer diameter of 4mm and a wall thickness of 0.5mm. How much does the lumen of the catheter constrict if the hose is stretch..

What causes osmotic pressure to increase : What causes osmotic pressure to increase? what is the difference between 1 mol and molality? between 1 mole of NaCl and 1 mole of sucrose? what is the difference between these properties in a solution?

Transparent-film-type heating element to its inner surface : The rear window of an automobile is defogged by attaching a thin, transparent, film-type heating element to its inner surface. By electrically heating this element, a uniform heat flux may be established at the inner surface. The interior air tempera..

Memorizing vsepr molecular shapes and drawing : Memorizing VSEPR molecular shapes and drawing them.also i want to know how to determine if a compound is polar or nonpolar can u also tell me how to draw lewis structures for propyne butane ethene, and 2-methylhexane please also help me draw ethano..

What is the rate of heat transfer from the balls to the oil : Steel balls at 150°C with a specific heat of 0.50 kJ/kg.°C are quenched in an oil bath to an average temperature of 70°C at a rate of 15 balls per minute. If the average mass of steel balls is 1.2 kg, what is the rate of heat transfer from the balls ..

Determine the mach number at the exit : Nitrogen flows through a converging-diverging nozzle designed to operate at a Mach number of 3.0. It it is subjected to an operating pressure ratio of 0.5: Determine the Mach number at the exit.

Explain what metrics should be used to assess : Identify some of the logistics activities that the business engages in and explain what metrics should be used to assess how effective the logistics function is that would be important to customers.

User Account

All Pages