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16. Find the dew point temperature of air whose humidity ratio is 0.0150 kg water/kg dry air. (I NEED THE SOLUTION FOR THE ANSWER PLEASE)
ANSWER: 22.50 oC
In a porter governor the mass of the central load is 18 kg and the mass of each ball is 2kg. the top arms (250+X) mm while the bottom arms are (300+X) mm long. The friction of the sleeve is 20 N. If the top arms make 45 degree with the axis of rotation in the equilibrium position, find the range of the speed of the governor in that position
Air refrigeration works between 1 bar and 5 bar pressure limits. The temperature of the air entering the compressor and expansion cylinder is 8+A0C and 20+B0C respectively. The expansion and compression follow the law pv1.3=Constant. Find the following: • The theoretical C.O.P of the refrigerating cycle. • If the load on the refrigerating machine is 10 tons, then find the amount of air circulated per minute through the system. Assuming the actual C.O.P is 50% of the theoretical C.O.P. • Length and diameter of the single-acting compressor run at 300 r.p.m and the volumetric efficiency are 85%.
The thin-walled single cell beam shown in Figure has been idealized into a combination of
direct stress carrying booms and shear stress only carrying walls. If the section supports a vertical
shear load of 10 kN acting in a vertical plane through booms 3 and 6, calculate the distribution of
direct stress around the section.
Steam at a temperature of 623 K is flowing through a pipe with an outer diameter of 100 mm. The pipe is insulated with 20-mm thick mineral wool, the average thermal conductivity of which is 0.055 W/m.K. Determine the outside surface temperature of mineral wool if the ambient air temperature is 300 K. Assume the hot-surface temperature of the mineral wool is the same as that of the flowing steam and the value of the surface coefficient of the insulating material is 30 W/m2.K.
combustion of methane with air . the volumetric analysis of the products oon a dry basis revela sthe following
A system composed of 2 kg of the above fluid expands in a frictionless piston and cylinder machine from an initial state of 1 MPa, 100°C to a final temperature of 30 degrees * C . If there is no heat transfer, find the net work for the process.
Steam at 7 bar and dryness fraction 0.9 expands in a cylinder to a pressure of 1.5 bar and 300oC. Calculate the change of internal energy and the change of enthalpy per kg of steam.
A riveted joint is shown in the figure which is used in the bridge to lock the wire, By using the information from the Figure you have to calculate the maximum bearing stress available between the pin and the members of the joint; You also need to calculate (b) the average shear stress in the pin for given load; as well as (c) the maximum mean normal stress in the joint members.
Determine the height at which the oak block will float above the water surface. The density of the oak is ρoak = 770 kg/m3
