An effort of 250N raises a load of 1000N through 5m in 10 seconds. If the velocity ratio is five, Calculate the:
i) Power input
Internal combustion engine
A heat engine is a machine, which changes heat energy obtained by burning fuel to kinetic energy (mechanical energy)
Engines are always less than 100% efficient because:-
i) Some of the energy is lost in over coming friction between walls of the cylinder and pistons.
ii) Some heat energy is lost to surrounding due to conduction.