Engineering, 21.09.2020 04:01 lisamccray45
Water for a Pelton wheel turbine flows from the headwaterand through the penstock as shownbelow. The effective friction factor (a function of Reynolds number and relative surface roughness) for the penstock, control valves, and the like is 0.030and the diameter of the jet is 0.22m.
Required:
a. Determine the maximum power output.
b. Calculate the potential energy to kinetic energy conversion efficiency. What can be done to improve this conversion efficiency?
Answers: 3
Another question on Engineering
Engineering, 04.07.2019 18:10
The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
Engineering, 04.07.2019 18:10
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
Answers: 1
Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
You know the right answer?
Water for a Pelton wheel turbine flows from the headwaterand through the penstock as shownbelow. The...
Questions
Geography, 10.12.2019 04:31
History, 10.12.2019 04:31
Geography, 10.12.2019 04:31
Mathematics, 10.12.2019 04:31
Arts, 10.12.2019 04:31
