Steam at 120°c flows in an insulated 1% carbon steel pipe. the pipe inner radius is 10 cm and the outer radius is 11 cm. this is covered with a 3 cm thick layer of asbestos having a density of 577 kg/m". the outer asbestos surface is at 45°c. using carbon steel thermal conductivity, k=43 w/m-k and asbestos thermal conductivity k= 0.192 w/m-k, determine the heat transfer from the steam per meter of pipe length.

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Courses that are developed by subject matter experts, internal or extemal to the college or university. these programs are marketed by the school (clo2) marks a)-vocational schools b)-vendor training c)-colleges & universities d)-continuing education programs

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]