Calculate the overall heat transfer coefficient of the steel pipe based on the inner surface. The inner diameter of the pipe is 12.7 cm, and the thickness of the pipe is 2.4 cm. The convective heat transfer coefficient in the pipe is 350 W / (m² °C), the convective heat transfer coefficient outside the pipe is 25 W / (m² °C), the thermal conductivity of the steel pipe is 15 W / (m °C) . If a pipe is used to deliver steam at 110 °C and the ambient temperature is 30 °C, determine the rate of heat transfer from the pipe per meter. q = Answer Watts/m

A 10 cm diameter pipe is covered by 2 layer of logging. the inside layer is 4 cm thick and has a coefficient of thermal conductivity of 0.08 w/m-k. the outside layer is 3 cm thick and has coefficient of thermal conductivity of 0.15 w/m-k. the steam main conveys steam a pressure of 1.7 mpa with 25 C superheat. the outside temperature of the lagging is 27 C. if the steam main is 30 m long, determine the interface temperature of the lagging and overall coefficient of heat transfer based on outside area.

Thermal Conductivity of Aluminum is 200 steel is 20 G10 Fiberglass 0.3

Answer this ASAP The diameter of the tube is 25 mm. The specific heat of water is 4.18 kJ/kg. °C. The overall heat transfer coefficient is 0.7 kW/m².°C. 1.Cmin 2.Maximum heat transfer rate 3.Heat transfer surface area

Blowtorch is used to connect the two pipes together. Length of the pipe section shown is 150 cm with an inner diameter of 85 cm. The thickness of the pipe wall is 4 mm. The conductivity of the pipe section is 167 Wim^2K. Environment has a temperature of 30 C and convective heat transfer coefficient of 28 WI(mC), find the required heat transfer to join the pipe sections at 220 C? HINT: Assume that the welding section is the base plate and the pipe is 1D extended surface (fin) symmetric about the torch melting line. Heat transfer happens by conduction along the pipe thíckness in horizontal direction and by convection to the environment. Length thickness Torch melting line 200 W 275 W none 314 W 453 W

An oil flow through a 40 mm bore steel pipe with the thickness of 4 mm. The pipe is covered by 10 mm thickness of insulator with the thermal conductivity of 0.038 W/m.K as shown in Diagram 4b. The temperature of the oil in the pipe is 75°C and the ambient temperature is 17°C. The internal thermal conductivity of steel is 50 W/m.K and the inside and outside heat transfer coefficient are 300 W/m².C and 17 W/m?.C respectively. Neglecting radiation, calculate the following: i. Rate of heat flow per meter length of the pipe ii. The temperature of the outside surface (Ts). Ts Ambient Oil 75°C temperature 17°C 40 Note : All dimensions are in mm/Nota: Semua dimensi adalah dalam mm Diagram 4b/Rajah 4b

Q5/ A hot steam pipe having an inside surface temperature of 250 C has an inside diameter of 8 cm and a wall thickness of 5.5 mm. It is covered with a 9-cm layer of insulation having k=0.5 W/m. C, followed by a 4-cm layer of insulation having k =0.25W/m. C. The outside temperature of the insulation is 20-C. Calculate the heat lost per meter of length. Assume k =47 W/m. C for the pipe.

Blowtorch is used to connect the two pipes together. Length of the pipe section shown is 150 cm with an inner diameter of 85 cm. The thickness of the pipe wall is 4 mm. The conductivity of the pipe section is 167 W/m^2K. Environment has a temperature of 30 C and convective heat transfer coefficient of 28 WI(mC), find the required heat transfer to join the pipe sections at 220 C? HINT: Assume that the welding section is the base plate and the pipe is 1D extended surface (fin) symmetric about the torch melting line. Heat transfer happens by conduction along the pipe thickness in horizontal direction and by convection to the environment. Length thickness Torch melting line

A 10-in.-OD mild-steel pipe of 1/2 in. wall thickness is covered by two layers of insulating materials. This pipe is used to convey heated air in a test arrangement and is not a permanent installation. See figure below. Determine the following: a. Determine the heat transfer rate per lineal foot of pipe. b. Determine T3. 1000°F MITIMIDA 7=32°F 1-in.-high temperature insulation, k = 0.051 Btu/h ft °F 1 in. 85% magnesia

A room is well insulated apart from a single-glazed window measuring 1 m2 and 4 mm thick. The internal air temperature is 22oC and outside it is -12oC. If the external convective heat transfer coefficient, hout, is double that of the inside coefficient, and the conductivity in the glass is negligible. Determine hout if Q = 100 W.