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answer the following questions in detail
What is a water-source heat pump? How does the COP of a water-source heat pump system compare to that of an air-source system?
A steady, incompressible two-dimensional velocity field is given by the following components in the xy-plane u = 0.205 + 1.72x + 0.851y v = -0.509 + 0.953x - 1.72y
An undisturbed cylindrical soil sample is 2.4 in. in diameter and 6 in. long. It has a weight of 1.95 lb. After finding the weight of the entire sample, a small portion was removed and a moisture content test was performed on it. The results of this ..
The first pipe of 400mm diameter is 500 m long, the second pipe 600 m long, size 300mm, and the last pipe is 500m long of diameter 200mm. If the elevation difference between two reservoirs is 30m
Calculate the viscous drag force on this plate, assuming boundary-layer flow with free-stream velocity of 15 ft/s and plate dimensions of L = 8 ft and W = 4 ft.
Find the required diameter of the force main PA, (dPA), if the pressure at point A is not allowed to drop below 370 kPa. Determine the required diameter of pipe BC, (dBC), if the maximum allowed head loss in the network ABC is 0.003 m/m.
The SO2 emission from a fixed source is 25 g/s. The effective stack height is 60 m, the wind speed is 4 m/s at the top of the stack. Assuming class C stability, what is the expected ground level concentration 2 km downwind
Total cost of replacement for each failed product is approximately $100,000, including the cost of environ-mental clean-up, loss of product, downtime, repair, and replacement. (a) Calculate the risk of failure by corrosion, in dollars.
A 170 kg granite rock (ρ = 2700 kg/m 3 ) is dropped into a lake. A man dives in and tries to lift the rock. Determine how much force the man needs to apply to lift it from the bottom of the lake. Do you think he can do it?
A nozzle that discharges a 4in water jet into the atmosphere is onthe right end of a 10in diameter hose. the water in the pipehas a velocity of 12fps and a gage pressure of 60psi. Find the magnitude and direction of the resultant axial force reaction..
A proposed embankment fill requires 8000 cubic meters of compacted soil. The void ratio of the compacted fill is specified as 0.7. Four borrow pits are available along with each of the respective void ratios along with the cost per cubic meter for mo..
A well with a radius of 0.5 m pumps at a constant rate of 1240 m3/day. After the cone of depression has achieved equilibrium, the piezometric heads at two observation wells 40 and 95 m from the pumping well are measured as 78.9 and 83.4 above sea ..
What is the contact time (min) required to achieve a log-3 deactivation of Giardia in water of 10 °C temperature, at pH 7, if the chlorine concentration is 2.2 mg/L
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