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An inward flow radial turbine (see Fig. P5.95) involves a nozzle angle, α1, of 60° and an inlet rotor tip speed, U1, of 6 m/s. The ratio of rotor inlet to outlet diameters is 1.8. The absolute velocity leaving the rotor at section (2) is radial with a magnitude of 12 m/s. Determine the energy transfer per unit mass of fluid flowing through this turbine if the fluid is (a) air, (b) water.
Is blue sky polarized, is the sun polarized? Blue light reflected from a glass table polarized? Why do some sunglasses block glare of off water and others do not? What other applications are there for polarizers?
an ideal gas is heated from 50 c to 80 c a at constant volume and b at constant pressure. for which case do you think
consider a combined gas-steam power plant. water for the steam cycle is heated in a well-insulated heat exchanger by
a uniform beamoflength l flexural rigidity ei and cross-sectional plastic moment mp is built-in at both ends and
Assume that the center of masses of the upper arm and the forearm acts in the geometric center of the respective body segment, and the center of mass of the hand acts at the same location that the cable is in the hand (given below). If the person is ..
how condenser can increase the power developed? and what is back pressure how it will effect the plant efficiency and
The properties of the glass are α = 1.5 × 10-6/?C, E = 70 GPa, υ = 0.30. [Hint: Assume a linear temperature gradient and for simplicity take the midpoint strain as zero.]
a gas-turbine power plant operates on the simple brayton cycle between the pressure limits 100 and 2000kpa. the working
Present an overview of (i) impact testing methods, and (ii) non-destructive testing (NDT) methods presented in your textbook. Elaborate on one type of impact testing as well as one type of non-destructive testing method. What are the advantages of us..
An air-standard dual cycle has a compression ratio of 18.2 and a cut off ratio of 1.31. The pressure ratio during constant volume heat addition process is 1.5. At the beginning of the compression, P1=80 kPa, T1 = 20°C at the beginning of the cycle. U..
The density of the mixture.
a chemically reactive system contains the following species in the gas phase nh3 no no2 o2 and h2o. determine a
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