S A 10-m-long section of an 8 cm (r=4 cm) of external diameter horizontal steam water...
A large steam pipe is covered with 1.5-cm-thick insulating material of thermal conductivity 0.29 J/(s m °C). How much energy is lost every second when the steam is at 215 °C and the outside of the pipe has a temperature of 20°C? The pipe has a circumference of 7.75 m and a length of 60 m. Neglect losses through the ends of the pipe
A large steam pipe is covered with 1.7-cm-thick insulating material of thermal conductivity 0.23 J/(s m °C). How much energy is lost every second when the steam is at 215 °C and the outside of the pipe has a temperature of 20°C? The pipe has a circumference of 8 m and a length of 60 m. Neglect losses through the ends of the pipe.
Chilled water enters a thin-shelled 5-cm-diameter, 150-m-long pipe at 7°C at a rate of 0.98 kg/s and leaves at 8°C. The pipe is exposed to ambient air at 30°C with a heat transfer coefficient of 9 W/m2.K. If the pipe is to be insulated with glass wool insulation (k0.05 W/m-K) in order to decrease the temperature rise of water to 0.25°C, determine the required thickness of the insulation.
A large steam pipe is covered with a 2.20 cm thick insulating material with a thermal conductivity of 0.27 W/(m°C). How much energy is lost every second when the temperature of the steam inside the pipe is at 240 °C and the temperature outside of the pipe is 27.0 °C? The pipe has a diameter of 2.40 m and a length 'of 300 m. Neglect losses through the ends of the pipe. Tries 0/12 Submit Answer
A steam pipe is covered with 1.50-cm thick insulating material of thermal conductivity of 0.200 cal/cm · °C · s. How much energy is lost every second when the steam is at 210°C and the surrounding air is at 20.0°C? The pipe has a circumference of 800 cm and a length of 60.0 m. Neglect losses through the ends of the pipe.
A steel pipe carrying saturated steam at 4000 kpa, is 304.8 mm OD. The pipe is 150 m long. Temp outside the pipe is 18 degrees C. It is insulated with formed insulation with thermal conductivity of 0.023 W/m/K. If the design is to allow for condensation of 80 kg of steam per hour, how thick must the insulation be?
5. A steam pipe is covered with 1.50-cm-thick insulating material that has a thermal conductivity of 0.200 cal/cm°C-s. How much energy is lost every second when the steam is at 200.0 °C and the surrounding air is at 20.0 °C? The pipe has a circumference of 8.00 x 102 cm and a length of 50.0 m. Neglect losses through the ends of the pipe. answe
Problem 3 (30): Steam at Too,1 340 °C flows in a cast iron pipe [k- 80 W/m.°C] whose inner and outer diameter are Di 6 cm and D2 -8 cm, respectively. The pipe is covered with a 4-cm thick glass wool insulation [k-0.05 W/ m°C]. Heat is lost to the surroundings at Too,2 - 21°C by natural convection and radiation, with a combined heat transfer coefficient of h- 18 W/m2 °C. Taking the heat transfer coefficient inside the pipe to...
A steam pipe is covered with 1.50 cm thick insulating material with a thermal conductivity of 0.200 cal/cm·°C·s. How much energy is lost every second when the steam isat 190°C and the surrounding air is at 20.0°C? The pipe has a circumference of 800 cm and a length of 60.0 m. Neglect losses through the ends of the pipe.
A large steam pipe is covered with 1.3-cm-thick insulating material of thermal conductivity 0.27 J/(s m