What is the cetane value of alpha methyl naphthalene?
zero
Explanation: Alpha-methylnaphthalene (C11H10) has a cetane number of zero. Cetane number is an indicator of the combustion speed of diesel fuel and compression needed for ignition.
What is the difference between cetane number and cetane index?
Cetane number is the most important and universally accepted ignition quality test. The cetane number test uses a standard single cylinder variable compression ratio diesel engine. Cetane index is a calculated value, which is derived from relatively easily measured fuel properties.
What is the best cetane number?
The scale for measuring cetane ranges from 0 to 100, and the higher the number, the better. Modern highway diesel engines tend to require fuel with a cetane number ranging from 45 to 55. Typically, regular no. 2 diesel has a cetane number of 40 to 42, while Cenex® Premium Diesel has a cetane number of 47 to 52.
What is the cetane number of methyl naphthalene?
0
Cetane ignites very easily under compression, so it was assigned a cetane number of 100, while alpha-methyl naphthalene was assigned a cetane number of 0. All other hydrocarbons in diesel fuel are indexed to cetane as to how well they ignite under compression.
What is cetane number of diesel in India?
Table 2
| Property | Unit | Specification |
|---|---|---|
| HSD† | ||
| Cetane number, min | 48b | |
| Pour point**, max | °C | W: 3 S: 15 |
| Copper corrosion (3 h at 100°C), min | 1 |
What is the best density of diesel?
about 0.85 kg/l
The density of petroleum diesel is about 0.85 kg/l – about 15–20% higher than the density of gasoline, which has a density of approximately 0.70–0.75 kg/l.
What is diesel cetane number?
The cetane number (CN) is an indicator of the ignitibility of diesel fuels. It provides information about the ignition delay, i.e. the speed of self-ignition of diesel fuel when injected into hot air through the fuel injector.
Can diesel have too much cetane?
If you increase the cetane number too high (55 and beyond), it can deteriorate the fuel and actually cause a reduction in overall engine performance. The truth is the negative effects of cetane boosters far outweigh the benefits. Alcohol and harmful solvents in diesel fuels are a fuel system’s worst enemy.
What is cetane number?
Which diesel is best in India?
Without further ado, here are the 10 most fuel-efficient diesel cars on sale in India today.
- Honda WR-V – 23.7kpl.
- Ford Freestyle – 23.8kpl.
- Kia Sonet – 24.1kpl.
- Fifth-gen Honda City – 24.1kpl.
- Ford Figo & Aspire – 24.4kpl.
- Honda Amaze – 24.7kpl.
- Hyundai Verna – 25kpl.
- Hyundai Grand i10 Nios – 25.1kpl.
Which diesel is used in India?
Because most diesel for non-road vehicles and equipment is obtained from on-road vehicle fuel stations, consumers in the thirteen Bharat IV cities presumably use 50 ppm sulfur diesel to fuel construction equipment, and those in Bharat III areas likely use 350 ppm sulfur diesel.