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A Carnot power cycle operates on 1.5 kg of air between the limits of 400 K and 250 K, completing one cycle each second. The pressure at the beginning of adiabatic expansion is 1000 KPa. Determine each of the following: a) Pressure at the end of adiabatic expansion, b) Changes in entropy during the adiabatic process, c) Heat absorbed and heat rejected, d) Power developed, e) Efficiency.
If 300 Kg of air is pumped into a previously empty 100 m^3 tank, and the temperature of the air in the tank is 25 deg C, then what is the pressure in the tank in N/m^2?
readeachquestioncarefully.remembertoexplainyoursolutionasyougosincedesignproblemscanbesolvedinanumberofways.itisacceptab
A thin electric heater is wrapped around a rod of diameter 3 cm. The heater dissipates energy uniformly at a rate of 1300 W/m. Air at 20°C flows normal to the rod with a velocity of 15.6 m/s. Determine the steady state surface temperature of the h..
How significant have advances in information and communication technologies since the late 1980's been on how we do business? And how have the major types of businesses that exist changed over this time?
a rigid tank contains 20 lbm of air at 20 psia and 70degf. more air is added to thenbsptank until the pressure and
question 1. a mild steel bar 40 mm diameter and 100 mm long is subjected to a tensile force along its axis.youngs
The velocity at the inlet is controlled so that it changes according to the following expression. V=a-ct^2, where a = 20m/s, c- 0.8m/s. If the tank initially contains 3kg of liquid water, determine the final mass at the end if 4 seconds of flow.
the 1-Mg forklift is used to raise the 750-kg crate with acceleration of 2 m/s. deterimine reaction exerted by the groung on the airs of wheel at A and B.
Determine the magnitude of the horizontal and vertical components of the force of the water on the gate.
A wooden board AB, which is used as a temporary prop to support a small roof, exerts at point A of the roof a 57-lb force directed along BA. Determine the moment about C of that force.
determine the maximun concentrated load that can be applied at the midpoint of a 3-m simple span. Neglect the weight of the beam.
a stationary gas turbine power plant operates on a simple ideal brayton cycle with air as the working fluid. the air
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