Presently, a diesel generator is the most widely used amogst electric power generators. It’s operational principles, where air and fuel are injected into the combustion chamber, make it for a very dependable machine, unlike the petrol engine driven generator working on a mix of air and gas. In a gasoline generator, fuel and air are sent into the engine together, and then compressed. In diesel engine, fuel is injected through an injector at the same time as air is compressed. Diesel generators’ simplicity makes them less troublesome and cheaper to operate and maintain. This makes them ideal for back-up and emergency power generating purposes. And of course, due to their lesser fuel consumption, mor eenvironmentally friendly.
Large diesel engine generators can be used to supply electric power to heavy machinery, for example pumps, dryers and residential heating and air conditioning. Small diesel generators are uncomplicated in design and pretty durable and with few exceptions; properly serviced diesel engines will run for years and years prior to needing an overhaul.
Diesel generators compresse at the ratio of 14:1 up to 27:1 whereas gasoline has a compression ratio between 8:1 and 14:1. Diesel generator compresses only air, so the ratio is much higher. There’s nothing better than a liquid cooled diesel generator, totally enclosed and operating with an effective muffler – thus operationally quiet. Liquid cooled generators are a lot better because it it’s quiet mode and an ease in controlling the temperature.
Diesel generators can either be two cycles or four cycles and are chosen in accordance with mode of operation. You can find two forms of diesel generators: open frame and close frame. The former belongs to cheap diesel generators.
Close frame is also known as silent generators. The most known type is the water cooled. Mostly air cooled and liquid cooled engines are the variants from which you can choose the back-up or emergency power supply for your home or business. Enclosed diesel generator is most commonly used for residential purpose. This form of generator has numerous advantages and serves its purpose pretty well, and at a low cost. It usually is a portable type, thus can be moved from one location to another. It runs at approximately 1700 RPM, and because of this, the generator may have a good horsepower output.
Your generator should have in-built warnings, such as low oil alarms and overload shutdowns. Exchangeable air cleaners are a must. In all, diesel generators run longer periods of time as in comparison to generators powered by petrol.
Diesels have no ignition systems, carburetors, or spark plugs and therefore their maintenance cost is low. They can provide power for the basic needs of a household; for example fridge, pumps, tv, microwave and lights. To be at the safer side, add about 25-30% to the output required. Check the length of warranty and availability of the spare parts and service, before buying your favorite power unit. And as always, ask a fully qualified electrician to connect your diesel generator to the power grid – safety requirement should not be taken lightly.
