Engineering, 08.11.2019 06:31, fvmousdiana
A0.4-w cylindrical electronic component with diameter 0.3 cm and length 1.8 cm and mounted on a circuit board is cooled by air flowing across it at a velocity of 234.00 m/min. if the air temperature is 35°c, determine the surface temperature of the component in °c. for air properties evaluations assume a film temperature of 50°c. the properties of air at 1 atm and at this temperature are k = 0.02735 w/m·°c, ν = 1.798 × 10−5 m2/s, and pr = 0.7228.
Answers: 2
Engineering, 03.07.2019 14:10, makaylashrout77
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 18:20, ashleyjaslin
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
Engineering, 04.07.2019 18:20, esmemaluma00
Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
Answers: 2
A0.4-w cylindrical electronic component with diameter 0.3 cm and length 1.8 cm and mounted on a circ...
Mathematics, 11.03.2020 05:41
Mathematics, 11.03.2020 05:41