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It is proposed to use a solar-powered thermoelectric system installed on the roof to cool residential buildings. The system consists of a thermoelectric refrigerator that is powered by a thermoelectric power generator whose top surface is a solar collector. Discuss the feasibility and the cost of such a system, and determine if the proposed system installed on one side of the roof can meet a significant portion of the cooling requirements of a typical house in your area.
A 10 ft layer of normally consolidated saturated clay is found at depth of 20 ft beneath a formation of partially saturated sandy silt with unit weight of 115 lb/ft cubed. Void ratio of the clay is 1.5 and specific gravity is 2.6.
A 40 kg load is placed 3 m from a fulcrum. If an effort force is applied at a distance of 2 m, how much force is required to life the load to a horizontal balance? How could you reduce the required effort force? Are there any additional consideration..
The bund channel is to be formed by the embankment only. The horizontal distance between two bund s is 50 m. The 1-hr rainfall expected during the recurrence interval of 10 yrs is 8 cm/hr.
design a square individual footing to support a 16 inch square reinforced concrete column. service loads include a dead load of 180 kips and a live load of 140 kips. both column and footing have fc=3000psi and fy=60000 psi.
If the elastic values of Bus service demand with respect to fare & headway are -0.35 & -0.7 respectively. A Bus service system which currently carries 56,000 passengers per day plans
Determine whether the block shown is in equilibrium and find the magnitude and direction of the friction force when theta=30 and P=150N
A circular hatch is located in a sloping wall of a water-storage reservoir, where the wall slopes at ? = 35° to the horizontal, the radius of the hatch R is 840 mm, and the center of the hatch yC is 3 m below the water surface (measured along the slo..
The force F is acting on the boom ABC at C points in the direction of the unit vector 0.7071i-0.7071j and its magnitude is 10kN. The boom is supported by a ball and socket at A and cables BD and BE.
You are designing a new thermometer using Galinstan, an alloy of gallium, indium, and tin that is a liquid at normal living temperatures. The coefficcient of thermal expansion is 190*10^-6 (1/kelvin)
Now, knowing ?hp or hl in the 1000’ parallel section, find the single-pipe diameter equivalent to two 12” dia ones. Assume high Rh, so Fig 9.11 applies.
Some types of precast floor, except:A. Precast half slab
The program should use both the maximum shearing-strength criterion and the maximum-distortion-energy criterion. It should also print the values of the principal stresses and, if the material does not yield, calculate the factor of safety.
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