Density of diesel fuel
The main consumers of diesel fuelare trucks, construction and agricultural machinery, as well as rail transport. However, recently, diesel fuel can be found and passenger transport. For all drivers, an exciting issue has always been its price. In automobile engines, diesel fuel is very advantageous and convenient, since it is cheaper than gasoline. The power and economy of engines working on diesel fuel is quite strong, since a high degree of its compression leads to significant savings.
The density indicator is currentlyThe most common, used in the characteristics of all petroleum products. The higher it is, the more energy is generated in the combustion process, and this makes it possible to increase the efficiency of the engine. It affects not only the quality of fuel, but also its use in the winter. Buying diesel fuel, drivers are often not interested in its density, especially in the summer. And while the car is moving normally, they do not think about anything.
But the density of diesel fuel plays a largerole in the fate of the car, and, as a rule, it is always remembered in the winter. When severe frosts occur, the diesel fuel is paraffined and transformed into a pulp-like mass that can clog the entire fuel system. The winter diesel must equal 840 kg per cubic meter. If it is summer, having 860 kg per cubic meter, then with a sudden change in temperature the consequences may not be very pleasant. In addition to winter and summer, there is also an Arctic diesel fuel. It has the lowest density, equal to 830 kg per cubic meter, and can easily withstand frost.
Of course, it is visually difficult to determine whichfuel is poured into the tank. It remains only to believe the documents on it. But at home, you can know the density of diesel fuel. To do this, it must be poured into a three-liter jar and put in a room where the temperature does not exceed twenty degrees. In the morning, measure the density with a hydrometer. However, it should be taken into account that in this way one can learn only about what it is - summer or winter, but the qualitative indicator can not be determined in this way.
In the event that the outside is freezing to minus tendegrees, you can directly analyze at the gas station what the density of diesel fuel is. To do this, in a small amount, you need to pour it on the metal and observe whether its structure will change. If it will flow normally, then there will be no doubt that it is winter. In case it becomes cloudy and will slightly harden, this means that the diesel fuel is summer, and in case of severe frost it freezes completely. To do this, just look at the refueling gun and see for yourself.
Therefore, if the driver is absolutely certain,that diesel fuel was produced in factory conditions, it can, on the basis of knowledge of its density, determine its belonging, as well as the freezing point. Well, if it is low-grade, then there will be no sense in its visual analysis.
Winter diesel fuel of high quality becomes turbid atforty-five degrees, and freezes at forty-eight. If we talk about the Arctic, the temperature of its congealing is generally sixty-five degrees.
Completely to be assured of quality of fuel it is possible only after laboratory checks with use of fractional distillation. There are other methods of determining quality, more modern.
Every driver should know what to fillthe car is best at those refuellings that have been checked repeatedly. And although the density of diesel fuel plays an important role, however, there are many other of its indicators that affect the operation of the engine.