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Two thousand cubic meters per hour of atmospheric air at 28°C with a dew point temperature of 25°C flows into an air conditioner that uses chilled water as the cooling fluid. The atmospheric air is to be cooled to 18°C. Sketch the system hardware and the psychrometric diagram for the process. Determine the mass flow rate of the condensate water, if any, leaving the air conditioner, in kg/h. If the cooling water has a 10°C temperature rise while flowing through the air conditioner, determine the volume flow rate of chilled water supplied to the air conditioner heat exchanger, in m3/min. The air conditioning process takes place at 100 kPa.
design a horizontal curve for a two-lane road. The road has 12-ft. lanes. Due to expansive excavation, it is determined that a maximum of 34 ft. can be cleared from the road's centerline toward the inside lane to provide for stopping sight distanc..
A completely mixed retention basin is used to treat an industrial waste water consisting of a non-conservative pollutant, using a reaction that destroys the pollutant according to first-order reaction kinetics, with k = 0.216/day.
A small lake with volume of 20,000 m^3 has no natural pollutant sources. However, a sewage pipe discharges sewage containing an organic polluntant into the lake. Conditions in the sewage pipe are Qs= 0.5 m^3/s, and Cs= 100mg/L.
Define and calculate the mass, stiffness, spectral and modal matrices of the frame with and without the braces.
Imagine you have been given a contract by the university to construct a real-size building. The university has requested you conduct a life-cycle assessment of the building to ensure sustainable and economically efficient use of materials.
A car is traveling at 30 mph on a good, dry pavement at sea level. The front-wheel-drive car has a drag coefficient of 0.35, a frontal area of 30 ft2 and a weight of 2500 lbs. The wheelbase is 120 inches and the center of gravity is 20 inches from..
The allowable stress in a steel shaft with an outside diameter of 1.5in and an inside diameter of 1.1in is 12,000psi. What hp can the shaft deliver at 1750rpm
One method of finding roots of an equation on a computer is the false position method. The idea is that for a function f(x), you find two values, f(x1) and f(x2) such that f(x1)* f(x2) is less than zero (think about what that means).
Transportation need to evaluate the time spent in traveling from city A to city B. The distance between the two cities is a variable because the macro developed is to be used for other cities.
Assuming steam to be an ideal gas, calculate its specific volume and density at a pressure of 90 lb/in^2 and a temperature of 650°F.
A fine-bubble aeration basin has a flow of 21.5 mgd, an influent BOD of 180 mg/l, 31 mg/l of mmonia, and effluent of 10 mg/l. During the winter, the wastewater temperature of 14.8 degrees C does not nitrify.
A steel I beam is supported by a pin at point A and a rocker at B, and a cable applies a 2000lb force. The beam is uniform and weighs 26 lb/ft. Determine the support reactions.
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