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What are the characteristics of diesel?
Abstract: Diesel fuel is a mixture of hydrocarbons obtained by distillation of crude oil. The important properties which are used to characterize diesel fuel include cetane number (or cetane index), fuel volatility, density, viscosity, cold behavior, and sulfur content.
What is the physical makeup of diesel?
Chemical composition Diesel is composed of about 75% saturated hydrocarbons (primarily paraffins including n, iso, and cycloparaffins), and 25% aromatic hydrocarbons (including naphthalenes and alkylbenzenes).
What are the physical and chemical properties of diesel?
Suggested Citation:”PHYSICAL AND CHEMICAL PROPERTIES OF MILITARY FUELS.” National Research Council. 1996….JET-PROPULSION FUEL 5.
| Molecular weight: | ≈185 |
|---|---|
| Initial point: | 182°C (156-191°C) |
| 10% evaporated: | 199°C ( 180-211°C) |
| 20% evaporated: | 207°C (199-213°C) |
| 50% evaporated: | 220°C (212-229°C) |
What are different characteristics of petrol and diesel fuels?
Diesel and petrol engines The calorific value of diesel fuel is roughly 45.5 MJ/kg (megajoules per kilogram), slightly lower than petrol which is 45.8 MJ/kg. However, diesel fuel is denser than petrol and contains about 15% more energy by volume (roughly 36.9 MJ/litre compared to 33.7 MJ/litre).
Which of the following characteristics is typical of diesel fuel with a high cetane number?
Higher cetane numbers mean shorter ignition delay and at the same time a better performance of the diesel engine: The injected fuel burns more evenly and completely, which usually results in higher-quality exhaust air, especially with regard to soot, particulate matter and unburned hydrocarbons.
What is the essential characteristic of a fuel?
Different Characteristics and Properties of Fuels A fuel is any material that can be made to react with other substances so that it releases energy as heat energy or to be used for work. It should possess a high calorific value. It should be easy to handle and transport. It should have a proper ignition temperature.
What Colour is diesel?
Because of the top-notch refining process, the diesel is more or less white in colour. In the past, kerosene would come as a white-coloured liquid, which is why customers are confusing the two types of fuel.
Why is some diesel red?
Why is diesel dyed? Diesel is dyed in order to denote if it has paid road tax or not. On-road diesel in the United States usually has a light green tint to it. Off-road diesel has a red dye to denote it has not paid road taxes as required by all states and the Federal government.