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The mass flow rate of steam into a steam turbine is 5 kg/s . The turbine has a heat loss of 5 kj/s. if the velocity of the refrigerant is to be limited to 2 m/s, what is the minumum allowable pipe d
Calculate the heat transfer per unit mass during the expansion if the exit temperature is 50 degrees celcius.
An adiabatic argon unit compresses argon at 200 kPa and 27C to 2.18 MPa. If the Argon leaves this compressor at 513C. What is the isentropic efficiency of the compressor
the bailey stone works employs six people. assumming that the density of uncompacted waste is 480 kg/m^3, determine the annual volume of solid waste produce by the stone works assumming a waste gene
Calculate the stress in a No. 7 rebar subjected to a tensile load of 10,600 lb (in ksi).
The overpass structure is to be level, centered 26 feet above the railroad, and 180 feet long. How much existing highway (in feet) must be reconstructed to provide appropriate vertical alignment
A signal approach has 20 seconds of displayed green, 4 seconds of yellow, and 3 seconds of all red (assume typical start-up, lost time, and clearance time). The cycle length is 60 seconds.
The car weights 2450 lb, the mechanical efficiency of the drivetrain is 90%, and the wheel radius is 14 inches. The base engine develops 200 ft-lb of torque, and a modified version of the engine dev
Steam enters a turbine with neglible velocity at 4 mpa, 600 degrees celcius and a flow rate of 36000 kg/h. Determine the heat loss from the steam passing through the turbine if the turbine has a pow
The discharge from a sugar beet plant causes the DO at the critical point to fall to 4.0 mg/L. The stream has a negligible BOD and the initial deficit after the river and wastewater have mixed is ze
Granny viola has been saving money in the Bread and Butter mutual fund for 15 years . She has been a steady depositor over those years and has a pattern of putting $100 into the account every 3 mont
Lab studies have shown that the rate constant associated with the process are as follows: k = 0.95 mg COD/mg VSS-day; Y = 0.48 mg VSS/ mg COD, half-saturation K = 85 mg COD/L; ke = 0.07 d-1.
The preliminary design for a wastewater treatment plant is being developed. The wastewater flow rate is 10,000 m3/day, and the BOD5 concentration is 200 mg/L. The plant discharge standard is 30 mg/L
Offshore oil exploration platform is expected to encounter current of 3 m/s wave height 4 m and periods 15 seconds. A 1 in 20 scale modes is to be build and tested in hydraulic laboratory to determi
Calculate the minimum-sized sand particle that would be removed in the chamber. To be removed, the particles must settle the depth of 2 m during the period the wastewater spends in the chamber (dT=V
If the aircraft flies at 9000 m standard altitude, make a plot of drag (in N) versus speed (from stall to 240 m/s) and determine the optimum emise velocity (minimum drag per unit speed).
the reliability is to be 95%, the overall standard deviation is 0.4, the drainage coefficient is 0.9, delta PSI is 1.7 ( with TSI of 2.5), and the load transfer coefficient is 3.2. the modulus of su
How many trips would one rubber-tired Herrywampus have to make to backfill a space with a geometrical volume of 5400 cubic yard. The maximum capacity of the machine is 30 cubic yard (heaped), or 40
a concrete test cylinder is loaded with p= 100k (445 kn) and resulting shortening of 0.036" (0.0914 mm). determine the unit strain developed in the concrete.
Assuming the origin is placed where the bullet begins to move, the force (in newtons) exerted by the expanding gas on the bullet is 18000 + 7000x - 20000x2, where x is in meters.
consider the diffusion of water vapor through a polypropylene (PP) sheet 2mm thick. the pressure of H2O at the two faces are 1 kPa and 10kPa, which are maintained constant.
two cars, connected by a cable, are winched up an incline using a second cable. the incline makes an angle of 25 degrees with the horizontal, and the winch rises another 30 degrees above the incline
582 nm photons are used in a photoelectric experiment. An electron is just released from metal with little or no kinetic energy at this frequency. What is the work function for this metal
A three-point bending test is performed on a glass specimen having a rectangular cross section of height d=5mm and width b=10mm; the distance between support points is 45mm.
The aquifer is inhomogeneous with K = 12+0.006x, where x =0 at point 1, and the piezometric heads at point 1 and 2 are 14.2 m and 18.8 m, respectively measured above the upper confining layer.