= 3) Consider an automobile windshield (kw = 1.4 W/mK) with an overall height of 0.5 m and thickness of 5 mm. The outsid
Posted: Sat May 21, 2022 11:46 am
= 3) Consider an automobile windshield (kw = 1.4 W/mK) with an overall height of 0.5 m and thickness of 5 mm. The outside air (1 atm) ambient temperature is -5°C and the average airflow velocity over the outer windshield surface is 80 km/h. To defrost ice accumulated on the outer surface of an automobile windshield, air is blown over the inner surface of the windshield, while the ambient temperature inside the automobile is 25°C. Determine the value of the airflow velocity, for the air blowing over the inner surface of the windshield, necessary to cause the accumulated ice to begin melting.