Engineering, 27.12.2020 15:50 emmagossett2002
Oil at a mass flow rate of 15,000 lbm/hr is heated in a heat exchanger from 800F to 2050F. The heat capacity of the oil can be assumed constant at 0.49 BTU/lbm-0F. The oil flows through the inside of the tubes (1.0-in. inside diameter and combined length of 400 ft). The required heat is supplied by saturated steam condensing on the outside of the tubes, keeping the temperature of the inside surface of the tubes at a constant value of 2150F.
Calculate:
a. The total rate of heat transfer, in BTU/hr.
b. The total surface area for heat transfer, in ft^2.
c. The logarithmic mean temperature difference, in 0°F.
d. The heat-transfer coefficient based on the logarithmic mean temperature difference, in BTU/hr-ft^2-0F.
Answers: 3
Engineering, 04.07.2019 18:10
Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery
Answers: 2
Engineering, 04.07.2019 18:20
Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
Answers: 2
Engineering, 04.07.2019 18:20
Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above
Answers: 1
Engineering, 04.07.2019 18:20
Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis
Answers: 1
Oil at a mass flow rate of 15,000 lbm/hr is heated in a heat exchanger from 800F to 2050F. The heat...
Mathematics, 27.10.2020 18:10
Advanced Placement (AP), 27.10.2020 18:10
Mathematics, 27.10.2020 18:10
Mathematics, 27.10.2020 18:10
Spanish, 27.10.2020 18:10