Search
What is the formula for power?
An engine is tested by means of a water brake at 1000 rpm. The measured torque of the engine is 10000 Nm and the water consumption of the brake is 0.5 m3 /s, its inlet temperature being 20°C.
Calculate the water temperature at exit, assuming that the whole of the engine power is ultimately transformed into heat which is absorbed by the cooling water.
A small sample of coal, when completely converted into energy, releases 3.75 * 10 ^ 34j What is the initial mass of coal, assuming the final mass is 0?
determine the volume, internal energy, enthalpy, entropy and density of 3kg of steam at a pressure of 5mn/m² and with a temperature of 350°c
Radiation intensity of a dipole depends strongly on frequency. If at a frequency f, the intensity of radiation is 'I'. Then at a frequency of f/2, the intensity will be
A broadside array consisting of 200 cm wavelength with 10 half-wave dipole spacing 10 cm. And if each array element feeding with 1 amp. current and operating at same frequency then find the half power beamwidth
What is rotational energy.
Explain carnot engine efficiency
What thermodynamic properties are independent of the amount of substance present
Air having a specific volume of 1.25 kg/m3 enters a gas turbine at a velocity of 105 m/s through an inlet area of 0.05 m2 . The air stream exits from the gas turbine at a velocity of 135 m/s and a specific volume of 0.67 kg/m3 . During the flow process, air loses 27 kJ/kg of heat and its specific enthalpy comes down by 145 kJ/kg. Determine, (i) the mass flow rate of air though the turbine, (ii) the turbine exit area, (iii) the power developed by the turbine
