Specific gravity diesel fuel

Schwer-hSrigkeit, /. difficulty of hearing. -Industrie, /. heavy industry, -kraft, /. force of gravity, -kraftbeschleunigung, /. acceleration of gravity, -kraftfeld, n. gravitational field. -kraftstofF, m. heavy fuel, specif. Diesel... 

Diesel fuel makeup can represent various combinations of volatility, ignition quality, viscosity, sulfur level, specific gravity, and other characteristics. Various additives are used to impart special properties... 

The calculated cetane index methods were developed to help predict the fuel cetane number without extensive engine testing. Since the calculated cetane index is determined from physical property values such as the specific gravity and the 10%, 50%, and 90% distillation points, it is readily measurable from laboratory data. The ASTM methods D-976 and D-4737 are used to determine the diesel fuel cetane index. 

In cold-temperature environments and during winter months, fuel refiners and marketers will often blend kerosene or 1 diesel fuel into 2 diesel fuel to help combat the problems associated with paraffin wax in fuel. This technique is effective to a limited extent due to the reduction in fuel BTU and specific-gravity values by these lighter fuels. 

Fuel Oils Refined petroleum products having specific gravities in the range of 0.85 to 0.98 and flash point temperatures above 55 °C. This includes auto diesel, industrial heating fuels, various bunker fuels, furnace fuels. Refer to Chapter 4 for specific examples and discussion of properties. Fuel Value Refers to the amount of potential energy that can be released by a fuel during combustion. Expressed in units of BTUs per pond of fuel. Examples are asphalt (17,158 BTU/lb typical value), LPG (18,000 BTU/lb), wood shavings (8,250 BTU/lb). 

Fuel Oils Refined petroleum products having specific gravities in the range from 0.85-0.98 and flash points greater than 55°C includes furnace, auto diesel, and stove fuels, plant or industrial heating fuels and various bunker fuels. 

Approximately 50% of the pyrolysis product boils below the initial boiling point of the diesel fuel, which is entirely consistent with the specific gravity and viscosity results. The pour point (-39 C) of the product was also considerably lower than a number 2 diesel fuel (-27 C). It is lower than the average value (-2rC) of diesel fuel in the Great Lakes and Eastern Region of Canada and similar to the average value (-39 C) in the Western Region of Canada. 

The Calculated Cetane Index (CCI), though not an accurate predictor of Cetane Number for biodiesel, since it is based on a calculation using specific gravity and the distillation curve, was used to estimate the Cetane Number of the biodiesel and two diesel fuels. From the results it can be seen that biodiesel has a CCI value higher (55) than that of diesel No.2 (49). This accords the biodiesel with better cold-start properties, minimizes the formation of white smoke (emissions), and leads to less engine noise and hence improved engine durability and reduced fuel consumption. ... 

The typical aromatics content of most diesel fuels is more in the 30-35 % range, and although there are no particular specifications for the total aromatics content, this content is bound to drop due to the foreseeable evolution of S and specific gravity specifications which will limit integration of LCOs and pyrolysis gas oils in the gas oil pool (26). 

The Chemical Information System (CIS) is used for chemical container tracking (inventory) and MSDS access. The system data is updated daily. Each container is bar-coded either by the JIT vendor, the laboratory owner, or the chemical inventory team. Every employee at SNL can view the data and perform searches. The bar-code number on each container allows access to information about the chemical name, location, quantity, NFPA codes, SARA codes, CAS number, specific gravity or density, and corresponding MSDS, synonyms mixture ingredients and percentage vendor information dates in and out and chemical owner. Information is obtained from the JIT and other vendors, lab owners, and the Chemical Inventory Team. Vendors supplying bulk quantities of chemicals (diesel fuel, liquid nitrogen, etc.) notify the CIS Team when they fill tanks. 

We apply Equations (6.25)-(6.28) to estimate the flash points and freezing points of diesel ful in MP HCR process and jet fuel in HP HCR process by models predictions on distillation curve, specific gravity, and MeABP. 

Figure 6.47 Predictions of the specific gravity of diesel fuel (MP HCR).

The broad definition of fuels for land and marine diesel engines and for nonaviation gas turbines covers many possible combinations of volatility, ignition quality, viscosity, gravity, stability, and other properties. Various specifications are used to characterize these fuels (ASTM D-975, ASTM D-2880). 

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