Accession Number : ADA303550

Title :   Fuel Requirements for Low-Heat Rejection Military Diesel Engines.

Descriptive Note : Interim rept. Oct 91-Sep 93,

Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TX TARDEC FUELS AND LUBRICANTS RESEARCH F ACILITY

Personal Author(s) : Westbrook, S. R. ; Stavioha, L. L. ; McInnis, L. A. ; Likos, W. E. ; Yost, D. M.

PDF Url : ADA303550

Report Date : JAN 1996

Pagination or Media Count : 50

Abstract : In the development of high-efficiency advanced engine technology such as low-heat rejection engines and injection systems, the thermal stability of fuel is an important concern. The next generation of engines for combat vehicles will be operating at higher fuel temperatures due to lower waste heat rejection and will be accompanied by higher heat transfer to the fuel injection system. Thus, high-temperature fuel deposit formation is more likely. As a result, two possible methods were evaluated for their potential to reduce fuel deposits: (1) prestress the fuel in an apparatus that feeds the fuel to the engine, or (2) pretreat the fuel with an appropriate additive to reduce deposits in the engine. It was shown that removal of dissolved oxygen from the fuel can significantly reduce the formation of deposits on hot metal surfaces. Prestressing the fuel prior to burning it in the engine was also effective in the reduction of deposit formation. The use of additive pretreatment yielded only limited success. jg p3

Descriptors :   *REQUIREMENTS, *DIESEL ENGINES, *MILITARY VEHICLES, *FUELS, *ENGINES, *HEAT, *REJECTION, HEAT TRANSFER, METALS, REMOVAL, HIGH TEMPERATURE, EFFICIENCY, THERMAL STABILITY, REDUCTION, SURFACES, OXYGEN, COMBUSTION, DEPOSITS, COMBAT VEHICLES, ADDITIVES, WASTES, DISSOLVING, FUEL INJECTION.

Subject Categories : Reciprocating and Rotating Engines
      Logistics, Military Facilities and Supplies
      Combat Vehicles
      Fuels

Distribution Statement : APPROVED FOR PUBLIC RELEASE