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1a(30%). A refrigerant at an inlet temperature of -40 °C flows...
Problem 1. (30 points) A double-pipe heat exchanger is used to condense steam at 7370 N/m2....
Problem 1. (30 points) A double-pipe heat exchanger is used to condense steam at 7370 N/m2. Water at an average bulk temperature of 10°C flows at 2.50 m/s through the inner pipe. which is made of copper and has a 2.54-cm ID and a 3.05-cm OD. Steam at its saturation temperature flows in the annulus formed between the outer surface of the inner pipe and an outer pipe of 5.08-cm-ID. The average heat transfer coefficient of the condensing steam is...
art II- Show your work 17 Marks team at 320°C flows in a stainless steel pipe...
art II- Show your work 17 Marks team at 320°C flows in a stainless steel pipe (kr 15 W/m "C) whose inner and outer diameters are 5 em and 5.5 cm, respectively. The pipe is covered with 3-cm-thick glass wool insulation (k 0.038 W m·°C). Heat is lost to the surroundings at 5°C by natural convection and radiation, with a combined natural convection and radiation heat transfer coefficient of hi-15 w/m.。C. The convective heat transfer coefficient inside the pipe to...
Question 3 34 pts ro 1 ri = 0.05m A pipe with surface temperature T1 -...
Question 3 34 pts ro 1 ri = 0.05m A pipe with surface temperature T1 - 458 K is wrapped with 0.04 m of glass fiber pipe insulation. The outer surface temperature of the insulation, T2 is equal to 347 K and its emissivity is equal to 0.68. The insulation is also subject to natural convection with a bulk fluid temperature of 298 K and h = 4 W/m2-K. For a pipe length of 100 m, and assuming that the...
For the collector geometry shown below and an inlet temperature of SO F, calculate the following ...
For the collector geometry shown below and an inlet temperature of SO F, calculate the following parameters for this liquid flat plate design: 1) Useful energy collection, 2) Outlet temperature, 3) Collector efficiency, and 4) Pressure drop A 50% ethylene glycol solution flows upward through the collector at 0.25 GPM entering at the given temperature. The collector is mounted in a vertical position. Calculate the performance in Amherst, Mass. for the hour between 11 and noon on November 19- when...
I. Steam at 220°C İs transported through an AISI 101 0 carbon steel pipe. The inside...
I. Steam at 220°C İs transported through an AISI 101 0 carbon steel pipe. The inside and outside diameters of the pip glass pipe insulation. e are 12 and 13 cm respectively. The pipe is wrapped with 5 cm thick cellular The ambient air temperature is 8°C. The inside and outside convection heat nts are 95 and 15 W/m2-K respectively. The thermal conductivity of the pipe is 60 W/m-K and for the insulation it is 0.072 W/m-K a. Construct the...
Steam at 150 °C flows in a stainless steel pipe which has a thermal conductivity of...
Steam at 150 °C flows in a stainless steel pipe which has a thermal conductivity of 16 W m-1 K -1 whose inner and outer diameters are 5 and 6 cm respectively. The pipe is covered with 3 cm think insulation having a thermal conductivity of 0.035 W m-1 K -1 . The combined convection and radiation heat transfer coefficient at the outside surface of the insulation is 20 W m-2 K -1 and the surroundings are at 10 °C....
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...
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...
help the following problem and show work, thank you. 1 (50%). Water enters a cylindrical pipe...
help the following problem and show work, thank you.
1 (50%). Water enters a cylindrical pipe (inner diameter = 1 inch) with a metallic wall (thickness = 1/16 inch, km = 152 W/mK) at a volumetric flow rate of 1 liter per minute, and the inlet temperature, Tm,i= 150 °F. There is an external cross flow, as shown in the sketch with air speed of 1 m/s and ambient temperature of 32 °F. (a) What are the pipe dimensions and...
8.56 Pressurized water at Tm,i = 200°C is pumped at m 2 kg/s from a power...
8.56 Pressurized water at Tm,i = 200°C is pumped at m 2 kg/s from a power plant to a nearby industrial user through a thin-walled, round pipe of inside diameter D = 1 m. The pipe is covered with a layer of insulation of thickness t = 0.15 m and thermal conductivity k = 0.05 W/m K The pipe, which is of length L = 500 m, is exposed to a cross flow of air at To = -10°C and...
IF YOU CANNOT SOLVE THEM ALL THEN PLEASE DONT SOLVE ANY. A hollow aluminum sphere, with...
IF YOU CANNOT SOLVE THEM ALL THEN PLEASE DONT SOLVE ANY.
A hollow aluminum sphere, with an electrical heater in the center, is used in tests to determine the thermal conductivity of insulating materials. The inner and outer radii of the sphere are 0.15 and 0.18 m, respectively, and testing is done under steady-state conditions with the inner surface of the aluminum maintained at 250°C. In a particular test, a spherical shell of insulation is cast on the outer surface...
Problem 1. (30 points) A double-pipe heat exchanger is used to condense steam at 7370 N/m2. Water at an average bulk temperature of 10°C flows at 2.50 m/s through the inner pipe. which is made of copper and has a 2.54-cm ID and a 3.05-cm OD. Steam at its saturation temperature flows in the annulus formed between the outer surface of the inner pipe and an outer pipe of 5.08-cm-ID. The average heat transfer coefficient of the condensing steam is...
art II- Show your work 17 Marks team at 320°C flows in a stainless steel pipe (kr 15 W/m "C) whose inner and outer diameters are 5 em and 5.5 cm, respectively. The pipe is covered with 3-cm-thick glass wool insulation (k 0.038 W m·°C). Heat is lost to the surroundings at 5°C by natural convection and radiation, with a combined natural convection and radiation heat transfer coefficient of hi-15 w/m.。C. The convective heat transfer coefficient inside the pipe to...
Question 3 34 pts ro 1 ri = 0.05m A pipe with surface temperature T1 - 458 K is wrapped with 0.04 m of glass fiber pipe insulation. The outer surface temperature of the insulation, T2 is equal to 347 K and its emissivity is equal to 0.68. The insulation is also subject to natural convection with a bulk fluid temperature of 298 K and h = 4 W/m2-K. For a pipe length of 100 m, and assuming that the...
For the collector geometry shown below and an inlet temperature of SO F, calculate the following parameters for this liquid flat plate design: 1) Useful energy collection, 2) Outlet temperature, 3) Collector efficiency, and 4) Pressure drop A 50% ethylene glycol solution flows upward through the collector at 0.25 GPM entering at the given temperature. The collector is mounted in a vertical position. Calculate the performance in Amherst, Mass. for the hour between 11 and noon on November 19- when...
I. Steam at 220°C İs transported through an AISI 101 0 carbon steel pipe. The inside and outside diameters of the pip glass pipe insulation. e are 12 and 13 cm respectively. The pipe is wrapped with 5 cm thick cellular The ambient air temperature is 8°C. The inside and outside convection heat nts are 95 and 15 W/m2-K respectively. The thermal conductivity of the pipe is 60 W/m-K and for the insulation it is 0.072 W/m-K a. Construct the...
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...
help the following problem and show work, thank you.
1 (50%). Water enters a cylindrical pipe (inner diameter = 1 inch) with a metallic wall (thickness = 1/16 inch, km = 152 W/mK) at a volumetric flow rate of 1 liter per minute, and the inlet temperature, Tm,i= 150 °F. There is an external cross flow, as shown in the sketch with air speed of 1 m/s and ambient temperature of 32 °F. (a) What are the pipe dimensions and...
IF YOU CANNOT SOLVE THEM ALL THEN PLEASE DONT SOLVE ANY.
A hollow aluminum sphere, with an electrical heater in the center, is used in tests to determine the thermal conductivity of insulating materials. The inner and outer radii of the sphere are 0.15 and 0.18 m, respectively, and testing is done under steady-state conditions with the inner surface of the aluminum maintained at 250°C. In a particular test, a spherical shell of insulation is cast on the outer surface...
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