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A desktop computer is to be cooled by a fan whose flow rate is 0.34 m3 /min. Determine:
a) the mass flow rate of air through the fan at an elevation on 3400 m, where the air density is 0.7 kg/m3 .
b) the diameter of the casing of the fan, if the average velocity of air is not to exceed 110 m/min.
5 kg of steam are initially at 310 bar and T = 750 C. The steam is isobaric ally cooled to 450 C. First, sketch the process on T -v and p - v diagrams. Then, determine Q, W, delta U, and delta H in kJ for this process using the steam tables.
A 1200 MW power plant has a thermal efficiency of 39%. Find: (a) the rate of heat addition to the cycle (b) the rate of heat rejection from the condenser [(a) 1.05 x 10^10 Btu/hr; (b) 6.4 x 10^9 Btu/hr]
calculate the hourly gas flow rate for the conditions given as followsreadings differential pressure 50-in water static
a pump fitted with 50mm bore ball bearings uses an oil whose viscosity ranges from 100cst at cold pump start-up to
develop a one-dimensional transient numerical solution for a plane wall of a nuclear containment vessel. the external
a steam turbine has an inlet pressure of 1200 kpa and temperature of 400 degc. the steam exits the turbine at a
calculate the required diameter of a 3 m long stainless steel annealed rod subjected to an axial tensile load o f 67
an air conditioning system is used to maintain a house at 70f when the temperature outside is 90f. if the air
a rigid vessel contains saturated water mixture at 1 atm. find the liquid by volume such that the water will pass
The center of gravity of the boom is located at G. Determine (a) the tension in cables DE and DF, (b) the reaction at A.
a reversible heat pump cycle operates between hot and cold reservoirs at th 27degc and tc -3degc respectively.
if the discharge from the turbine is 250 cubic feet per second what power output may be expected from the turbine?
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