subject
Engineering, 14.04.2020 18:18 carrillo4444

A glass window of width W ! 1 m and height H ! 2 m is 5 mm thick and has a thermal conductivity of kg ! 1.4 W/m!K. If the inner and outer surface temperatures of the glass are 15)C and #20)C, respectively, on a cold winter day, what is the rate of heat loss through the glass? To reduce heat loss through windows, it is cus- tomary to use a double pane construction in which adjoining panes are separated by an air space. If the spacing is 10 mm and the glass surfaces in contact with the air have temperatures of 10)C and #15)C, what is the rate of heat loss from a 1 m % 2 m window? The thermal conductivity of air is ka ! 0.024 W/m!K.

ansver
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:20, CelesteN64
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
image
Engineering, 04.07.2019 18:20, ashleyjaslin
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
image
Engineering, 04.07.2019 18:20, miguel454545
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
image
Engineering, 04.07.2019 19:10, kelseiroll9759
Ahelical coil spring has a mean diameter of 50 mm, a wire diameter of 5.5 mm and is wound with a pitch of 10 mm. the spring steel has an ultimate strength of 1250 mpa. find the force needed to compress the spring solid and the wire stress in this condition. state whether the spring will return to its initial length.
Answers: 1
You know the right answer?
A glass window of width W ! 1 m and height H ! 2 m is 5 mm thick and has a thermal conductivity of k...

Questions in other subjects:

Konu
Mathematics, 16.09.2020 18:01
Konu
Mathematics, 16.09.2020 18:01
Konu
Mathematics, 16.09.2020 18:01
Konu
Mathematics, 16.09.2020 18:01
Konu
Biology, 16.09.2020 18:01
Konu
Mathematics, 16.09.2020 18:01
Konu
Mathematics, 16.09.2020 18:01
Konu
Mathematics, 16.09.2020 18:01
Konu
Mathematics, 16.09.2020 18:01
Konu
Mathematics, 16.09.2020 18:01