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An open system Brayton cycle has a heat input of 500 kW. The pressure ratio of is 15 and the mass flow rate of air through the engine is 1 kg/s. Right before compression the temperature of the air is 273K and the pressure is 70 kPa.Determine: Using Constant specific heatsa) The net power produced by this cycleb) The thermal efficiency
This weir is to be replaced by an uncontracted horizontal weir that will maintain the same upstream depth. Determine the height of the weir if the discharge coefficient is based on the following equation: C = 1.78 * 0.22(H/p)
Given that the seperation distance between the charges is 5m, q1 = -3q2, find the position where the net electric field is zero. Do not use infinity.
For a .15 micrometer diameter spherical particle (density of particle = 2500 kg/cubic meter) determine the Cunningham correction factor at standard conditions.
A 2000 ft vertical curve connects to a +3% grade to a -5% grade. If the vertical tangents intersect at station 52+60.55 and elevation 877.62 ft, calculate the elavations at the VPC, VPT, high point and station 54+00.
The forces F1, F2, and F3, all of which act on point A of the bracket, arespecified in three different ways. Determine the x and y scalar components of each of the three forces.
Two materials (wrought iron, ks = 0.046 mm, and galvanized iron, ks = 0.15 mm) are being considered for a new pipeline. The expected discharge is 0.15 m3/s. Both the head loss and cost are sought for.
A large company in the communication and publishing industry has quantified the relationship between the price of one of itsproducts and the demand for this product as Price = 150- 0.01 x Demand for an annual printing of this particular product.
Only the inner cylinder is rotating. THe velocity distribution is given by V(r)=1000r-0.4/r [m/s]. If the diameters of the cylinders are 3 cm and 5 cm, respectively
A loose, uncompacted sand fill 6 ft in depth has a relative density of 40%. Laboratory tests indicated that the minimum void ratios of the sand are 0.46 and 0.90, respectively. The specific gravity of solids of the sand is 2.65.
You may assume that the total pressure at the downstream station is uniform across the tunnel and given by the value at the wall. Neglecting gravitational effects.
Determine the cycle time for a single engine scraper rated at 21 cy heaped that is used to haul material from a pit to a fill 900 ft away under severe conditions. The average haul speed will be 14 mph and the average return speed will be 20 mph.
What is the concentration of tracer in the reactor 1 h after tracer addition is terminated? The reactor had an initial concentration of tracer of 1.0 mg/L when tracer addition commenced.
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