An air-standard dual cycle has a compression ratio of 16 and a cutoff ratio of 1.15. at the beginning of compression, p1= factor of 2.2 during the constant volume heat addition process. if the mass of air is 0.04 kg, determine 95 kpa and t 300 k. the pressure increases by a (a)-the heat addition at constant volume and at constant pressure, each in kj (b)-the net work of the cycle, in kj. (c)-the heat rejection, in kj (d)-the thermal efficiency

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?