Six Stroke Engine Using Gasoline and R-123

Abstract

In any Internal Combustion Engine, only 35% of the available energy is converted into the crankshaft energy. The remaining portion of the energy is either expelled into the atmosphere or it increases the temperature of the engine block. This is desirable as the conversion of heat energy into mechanical energy is more efficient at higher temperatures. However, beyond a certain limit it sets up thermal stresses and in extreme cases it causes engine seizing. Thus a cooling system is employed to remove this heat and transfer it into the atmosphere with the help of a radiator or a heat exchanger. In a six stroke engine, this heat transferred by the coolant is reduced. As there have been several advancements in the recovery of energy from exhaust gases such as turbochargers, Thermoelectric Generators and other such techniques, energy recovery by adding two strokes with a working fluid as a refrigerant is unique. The study shows that around 30% of the heat is carried away by the coolant and hence this is amount of energy that can theoretically be harvested. Since this offers a superior cooling system, the chances of detonation is also considerably lowered. By reducing the amount of heat expelled into the atmosphere, the overall efficiency is improved. In today's age of rapidly depleting natural resources (fossil fuels), it is of utmost importance to converse these non-renewable sources of energy. Since the IC Engine has reached a state of saturation, waste heat recovery is the best way to improve the efficiency and hence reduce the fuel consumption.