jueves, 14 de junio de 2018

Good Reasons You Should Choose a Generator with Diesel Powered Engine

Good Reasons You Should Choose a Generator with Diesel Powered Engine

In today’s day and age, when fuel price are getting higher as a result of spiraling demand and declining supply, you need to pick a cost effective fuel that is going to meet your needs. In great thanks to the invention of Rudolf Diesel, the diesel engine has been extremely efficient and more cost effective than we would have though. Diesel fuel is priced a bit higher than gasoline is but diesel has a higher energy density. That means that more energy can be gained from diesel than it can be gained with the same volume of gas. So, diesel engines in cars will give you higher mileage, making it the better choice for long distance transport vehicles and equipment. Diesel is also heavier and oilier than gasoline, and its boiling point is higher than that of water. Diesel engines are starting to attract attention since they are getting higher efficiency and a better cost efficiency.

How Does a Diesel Engine Work?
The main distinction lies in how the ignition is made. While gasoline engines are operated on a spark ignition, diesel engines operate on a compression-ignition for ignition of the fuel. In diesel, the air is drawn in the engine and it’s subjected to a high compression that will heat it up. This then results in a very high temperature in the engine, which is much higher than that in a gasoline engine. At peak pressure and temperature, the diesel that is let into engine will then ignite due to the account of the extreme temperature.
In a diesel engine, the fuel and air are permeated into the engine at different stages as opposed to a gas engine. In a gas engine a mixture of air and gas are introduced. Fuel is then injected into the diesel engine using an injector, but in a gas engine a carburetor is used. In a gas engine, air and fuel are sent into the engine together and are compressed. The fuel and air mixture limits fuel compression and also the overall efficiency. Unlike a diesel engine which only compresses air, and the ratio can be higher. An engine fueled with diesel compresses at the ratio of 14:1 up to 25:1, unlike a gas engine where the compression ratio is nearer to 8:1 to 12:1. After this combustion, the by-products are removed through exhaust. For starting engines during colder months extra heat is provided through something called ‘glow plugs’.
When referring to diesel engines they can either be two or four cycle and are chosen depending on their mode of operation. Liquid cooled and air cooled engines are the variants to be chosen appropriately. Most preferred are the liquid cooled generators as they are quiet in operation and has evenly controlled temperatures.

Diesel Engine Advantages
Considered to be much more efficient and preferred over the gasoline engine due to the following:
•Diesel engines have overcome the disadvantages of older noisier models with high maintenance costs.
•More rugged and reliable.
•No sparking when fuel auto ignites. No spark plugs or spark wires lowers maintenance costs.
•The fuel cost per kW produced is 30-50% lower than that of gasoline engines.
•1800 rpm water cooled diesel unit will run for 12,000-30,000 hours before major maintenance needed. An 1800 rpm water cooled gas unit will operate 6,000-10,000 hours before major maintenance needed.
•Diesel units are cooler than gas units, and will have longer lives than gas units.

Applications & Uses for Diesel Engines
You will find that diesel engines are commonly used as mechanical engines, mobile drives, and power generators. They are used in construction equipment, locomotives, automobiles, and other industrial applications. They extend to nearly any industry you can think of and can be seen on a daily basis if you look under the hood of anything that passes you by. Industrial diesel engines and diesel powered generators have marine, construction, hospital, mining, telecommunications, forestry, agricultural, underground applications just to name a few. Power generation for standby or prime backup power is the main application of diesel generators. Feel free to take a look at our article on the different types of engines and generators and their common applications for more examples.

Power Generators
Electrical generator sets or diesel generators are used in countless commercial and industrial establishments. Generators can be used for small loads in homes, or for large loads in hospitals, industrial plants, or commercial buildings. They are able to be used as standby/back-up or prime power sources. They are available in many specifications and sizes. Diesel generators are rated 5-30KW are typically used in personal applications such as recreational vehicles or small homes. Industrial applications will cover a much wider spectrum of power ratings, from a 30 kW to 6 mW. They are used in various industries around the world. For home use, there are single-phase power generators. Three-phase power generators are mainly used for industrial purposes.


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SOURCE:

http://www.jatpower.com/blog/good-reasons-you-should-choose-a-generator-with-diesel-powered-engine/