Gas Engine

An engine is a machine designed to convert one form of energy into mechanical energy.

Types of Fuel Used
On the basis of types of fuel used, the engine is classified as petrol engine, diesel engine and gas engine.
• Dual fuel engine: On internal combustion engines one fuel is gasoline or diesel, and the other is an alternate fuel such as natural gas (CNG), LPG, or hydrogen.
• Gas engine: An engine using gas fuel for the working is called gas engine.
• Diesel engine: The engine which uses diesel for its working is called diesel engine.

SI vs. CI Engine
The most prominent difference between Spark Ignition (SI) and Compression Ignition (CI) engines is the type of fuel used in each. In SI engines petrol or gasoline is used as fuel, hence these engines are also called petrol engines. In CI engines diesel is used as fuel, hence they are also called diesel engines.

 

Type of IC Engines
Types of Internal Combustion (IC) Engines. There are two main types of IC engines: spark ignition (SI) engines (petrol or gasoline engine) and compression ignition (CI) or diesel engine. Both these engines are further classified as 2-stroke and 4-stroke engine

4-stroke Engine
Four Stroke Cycle Engines. A four-stroke cycle engine is an internal combustion engine that utilizes four distinct piston strokes (intake, compression, power, and exhaust) to complete one operating cycle. The piston make two complete passes in the cylinder to complete one operating cycle

 

2-stroke Engine
A two-stroke, or two-cycle, engine is a type of internal combustion engine which completes a power cycle with two strokes (up and down movements) of the piston during only one crankshaft revolution. This is in contrast to a "four-stroke engine", which requires four strokes of the piston to complete a power cycle.

 

2 stroke Vs. 4 stroke engine
Two-stroke engines don't live as long as four-stroke engines. The lack of a dedicated lubrication system means that the parts of a two-stroke engine wear-out faster. Two-stroke engines require a mix of oil in with the gas to lubricate the crankshaft, connecting rod and cylinder walls.

Dual fuel Engine
Bi-fuel vehicles or otherwise known as dual fuel are vehicles with multifuel engines capable of running on two fuels. On internal combustion engines one fuel is gasoline or diesel, and the other is an alternate fuel such as natural gas (CNG), LPG, or hydrogen.

Dual fuel Engine work
The air-to-natural gas mixture is then drawn into the cylinder, just as it would be in a spark-ignited engine, but with a leaner air-to-fuel ratio. Near the end of the compression stroke, diesel fuel is injected and ignites, causing the natural gas to burn.

 

Natural gas Engine works
The engine functions the same way as a gasoline engine: The fuel-air mixture is compressed and ignited by a spark plug. The natural gas is stored in a fuel tank, or cylinder, typically at the back of the vehicle. A CNG fuel system transfers high-pressure natural gas from the fuel tank to the engine.

Advantages of using natural gas as a fuel
Natural gas, the cleanest fossil fuel, is a highly efficient form of energy. ... Natural gas s advantages over other fuels include the following: it has fewer impurities, it is less chemically complex, and its combustion generally results in less pollution.

 

Disadvantages of using natural gas
Some of the main disadvantages in using natural gas are listed below: Flammable and Toxic: Natural gas leaks can be proven to be extremely dangerous. Environmental Impact: When natural gas burns, carbon dioxide, monoxide, and other carbon compounds are emitted in the atmosphere contributing to the greenhouse effect.

Difference between an inverter and a generator
With an inverter generator, the engine is connected to an efficient alternator, which produces AC electricity, just like a conventional generator. But then a rectifier is used to convert the AC power to DC and capacitors are used to smooth it out to a certain degree