Engineering, 10.12.2020 17:50 floreschachi7506
In a manufacturing unit, heat going up a boiler flue is captured and used to pre-heat returning condensate. What type of manufacturing system is this? The system described is an example of a system.
Answers: 3
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 04.07.2019 18:10
Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.
Answers: 3
Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
Engineering, 04.07.2019 18:20
A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?
Answers: 3
In a manufacturing unit, heat going up a boiler flue is captured and used to pre-heat returning cond...
World Languages, 21.09.2019 22:10
Mathematics, 21.09.2019 22:10
Health, 21.09.2019 22:10
History, 21.09.2019 22:10
Mathematics, 21.09.2019 22:10
History, 21.09.2019 22:10
Mathematics, 21.09.2019 22:10
Computers and Technology, 21.09.2019 22:10
History, 21.09.2019 22:10
Computers and Technology, 21.09.2019 22:10
Health, 21.09.2019 22:10
History, 21.09.2019 22:10
History, 21.09.2019 22:10
History, 21.09.2019 22:10
Social Studies, 21.09.2019 22:10
Biology, 21.09.2019 22:10