(Solved): A power generator with two-cylinder, four-stroke gas engine has a bore of \( 480 \mathrm{~mm} \) an ...

A power generator with two-cylinder, four-stroke gas engine has a bore of \( 480 \mathrm{~mm} \) and a stroke of \( 585 \mathrm{~mm} \). At \( 300 \mathrm{rev} / \mathrm{min} \) the torque developed is \( 10 \mathrm{kNm} \). The generator is supplied with a mixture of gas and air in the proportion of 1 to 8 by volume. The estimated volumetric efficiency is \( 80 \% \) and the net calorific values of the fuel is \( 48.6 \mathrm{MJ} / \mathrm{m}^{3} \). Calculate: The brake power in \( \mathrm{kW} \), the mean piston speed in \( \mathrm{m} / \mathrm{s} \), the break mean effective pressure in bar, \( 2.4 \) the swept volume in \( \mathrm{m}^{3} / \mathrm{min} \), 2.5 the volume of mixture induced in \( \mathrm{m}^{3} / \mathrm{min} \), 2.6 the gas flow to engine \( \mathrm{m}^{3} / \mathrm{min} \), 2.7 the energy supplied by gas, and 2.8 the brake thermal efficiency.