Introduction to the diesel generator Diesel generator converts the chemical energy of fossil fuels into electrical energy. This accomplishment is provided through a combination set of diesel engine and an AC generator. This machine is equipped to a fuel tank, a board of controller, and a radiator. Diesel generator is a small member of power plant machinery systems which is lunched by gasoline. The diesel fuel is the main source of power which drives the diesel engine as well as the generator, in order to produce electrical power. A combination set of ‘Diesel Generator’ includes, diesel engine, generator, and other complementary parts such as chassis, the upper trim, exhaust silencer, control system, emergency cutoff, water heater, and start-up system. A complete set includes diesel engine, generator, board of control, fuel tank, the battery which is used for start-up system, protective components, and so on. Diesel generator supplies backup power for prime or emergency usage of buildings, offices, companies, hospitals and other stations. How diesel generator works Thanks to its internal combustion system, a diesel engine converts the massive amount of energy that which is stored in gasoline into mechanical energy. This mechanical energy rotates engine’s crankshaft in order to produce electrical power. Rotation of crankshaft drives the main shaft of generator. And then, magnetic field within the core of generator induces electrical charge into the wires. Every generator benefits from two polar magnets which provoke the induction of electromagnetic field. Diesel generators are very useful machines that produce electricity by burning dieselfuel. These machines use a combination of an electric generator and a diesel engine to generate electricity. Diesel generators convert some of the chemical energy, contained by the diesel fuel, to mechanical energy through combustion. This mechanical energy then rotates a crank to produce electricity. Electric charges are induced in the wire by moving it through a magnetic field. In an electric generator application, two polarized magnets usually produce the magnetic field. A wire is then wound around the crankshaft of the diesel generator many times, which is placed between the magnets and in the magnetic field. When the diesel engine rotates the crankshaft, the wires are then moved throughout the magnetic field, which can induce electric charges in the circuit. A general rule of thumb is that a diesel generator will use 0.4 L of diesel per kWh produced. The diesel engine used is essentially an internal combustion engine. Unlike a gasoline engine, the diesel engine uses the heat of compression to ignite and burn the fuel that has been injected into the injection chamber. In general, diesel engines have the highest thermal efficiency out any internal combustion engine, which allow to achieve an approximate percentage of the Carnot efficiency. Diesel engines can operate off of many derivatives of crude oil. The fuels a diesel engine may use for combustion include natural gas, alcohols, gasoline, wood gas and diesel. Missions of Diesel Generators Diesel generators may attend services in multiple applications in all corners of the globe. Generally, they are connected to the power networks of small towns in order to provide backup or continuous power supply. Diesel generators can join the power network when the demand on supplying electricity marks its climax of rates; due to their uninterruptible Start/Stop reactions. Diesel generators with power supply capacities of 8kW to 30kW are mostly used in residential settings; however, their capacities are varied from 8kW to 2000kW, on commercial settings. Also, large vessels benefit from diesel generators in order to supply electricity for activation of lights, motor fans, and circuit breakers, until fulfillment of power for motive force system. Diesel generators, as power stations, are widely used in mining projects, railways, construction stations, maintenance of traffics of roads, factories, companies, hospitals, and other stations. Other combination sets of diesel generators are installed in separated locations, far from the power networks, or they are installed as backup power suppliers of the networks on emergencies or network failures.
Performance types of diesel generator Diesel generators are mostly used in three states of emergency, prime, and continuous usage, in accordance with purposes of the projects. Based on requirements, power suppliers and diesel generators can be classified under different categories which are as follows. . Standby Diesel Generator Diesel generators uninterruptedly supply emergency power in any occasion of main power outage. Sometimes, standby diesel generators are used only on a few events of power cut per month. Backup power is used in emergencies such as power outage. These power stations are the most preferable for such ocassions which emerge as another relaiable power supply and the most useful power maintainer during power cut in order to save the continuity of power for a long hual. Installation of standby diesel generators proves indispensable for health organizations and protective associations such as hospitals, airports, hotels, and information centers. Prime Diesel Generator Prime diesel generators are widely used in locations where power suppliers are required for prime matters, and this type of diesel generator is used as a backup or simultaneous supplier of the main power. Prime diesel generator is designed to work as a main power supplier for sites becausein the absence of city electricity; it is necessary to use them in locations such as mining projects, camps, building construction sites, exhibitions, in which the usage of power is not as much as a huge station. Prime power is the main power maintainer; but it has an essential difference. Prime power permanently supplies power for a stable usage, but it cannot supply power for extra or variable usages. The main difference between the main power and the prime power is that the total capacity of generators supplies power for few hours and it can mark the peak of 10% more than the nominal rate of power. Continuous diesel generator Continuous diesel generator are mostly installed at outskirt regions, far from city power networks or powerhouse stations; because, they supply continuous and constant power for a long haul but these suppliers cannot provide power for extra usage. As it can be understood from its name, a power supplier generator, do not use power themselves; rather, they supply power for a long time. Main power stations are widely used for mining projects and oil stations, because they are far from city power network.