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Spectrometric Oil Analysis Program (SOAP) is a method used by aircraft operators, including several Air Forces of the World, to test the health of aircraft engines by performing frequent laboratory testing of the engine oil. The tests reveal the chemical composition of any metal particles suspended in the oil samples. By comparing the results ...
It is a measure of the efficiency of the gasoline engine by measuring the percentage of oxygen in the exhaust. When gasoline engines operate with a stoichiometric mixture of 14.7: 1 the value of lambda (λ) is "1". Mixing ratio = weight of fuel / weight of air - Expressed as mass ratio: 14.7 kg of air per 1 kg. of fuel.
For example, a reciprocating engine achieves maximum efficiency when the intake air is unthrottled and the engine is running near its peak torque. The efficiency often reported for a particular engine, however, is not its maximum efficiency but a fuel economy cycle statistical average. For example, the cycle average value of BSFC for a gasoline ...
In these systems, the dynamometer load and engine speed are varied to many engine operating points, while selected engine management parameters are varied and the results recorded automatically. Later analysis of this data may then be used to generate engine calibration data used by the engine management software.
Development in robotic analyzers, TOC and TN equipment, and monitors has extended the product lines of its long life SAN++ Continuous Flow Analyzers. Software packages for data acquisition and analyzer control are also in house products, running with latest software demands and handles all analyzer hardware combinations.
Owing to the inferior reliability and higher maintenance costs, several Erie-Builts, including four of NYC's eight freight Erie-Builts [3] and eight of KCS Erie-builts were repowered with an EMD 567 series diesel engine rated at 1,750 hp (1,300 kW). New York Central derated the OP engines in its six passenger Erie-Builts to 1,750 hp (1,300 kW ...
Schmidt was born in Falls Church, Virginia, later moving to Blacksburg, Virginia. [4] [21] He is one of three sons of Eleanor, who had a master's degree in psychology, and Wilson Emerson Schmidt, a professor of international economics at Virginia Tech and Johns Hopkins University, who worked at the U.S. Treasury Department during the Nixon Administration.
The London Science Museum's difference engine, the first one actually built from Babbage's design. The design has the same precision on all columns, but in calculating polynomials, the precision on the higher-order columns could be lower. A difference engine is an automatic mechanical calculator designed to tabulate polynomial functions.