Entries by admin
mass and energy balances
Material and energy balances are based on a conservation law which is stated generally in the form: Change in total energy in the system = Total energy entering the system (Input) – Total energy leaving the system (Output) Energy is the total energy of a system. The total energy of a system can be in […]
coal fired boiler power plant
It is undeniable, in this modern era, the need for electricity seems to be a primary need for the running of the economy, industry and our daily lives. One type of power plant that quite dominates the supply of electricity needs in the world or in Indonesia is a steam power plant. The use of […]
water turbine
Water turbines are often used in hydroelectric power plants. The turbine has the function of changing the potential energy possessed by the water into mechanical energy (rotation) in the turbine rotor. The mechanical energy of the turbine is connected to a generator to generate electricity. The working principle of a water turbine is the utilization […]
lift and drag forces on an airplane wing
To design an airplane wing or scale model, some knowledge of aerodynamics and terminology (terms) commonly used in aviation is required. In principle, airplanes use wings to generate lift. As for producing the lift, the airplane wing utilizes two main principles, first, namely the pressure difference between the top and bottom surfaces of the wing, […]