Heat Transfer in the Cylinders of Reciprocating Internal Combustion Engines
01 Jun 1963-Vol. 177, Iss: 1, pp 973-996
About: The article was published on 1963-06-01. It has received 916 citations till now. The article focuses on the topics: Reciprocating motion & Internal combustion engine cooling.
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2,050 citations
TL;DR: A comprehensive overview of hydrogen-fueled internal combustion engines (H 2 ICEs) can be found in this paper, where the authors discuss the fundamentals of the combustion of hydrogen, details on the different mixture formation strategies and their emissions characteristics, measures to convert existing vehicles, dedicated hydrogen engine features, a state of the art on increasing power output and efficiency while controlling emissions and modeling.
743 citations
01 Feb 1979
668 citations
29 Jul 2014
TL;DR: The types of sensors reviewed in this chapter are (1) room-temperature hydrogen leak sensors; (2) thermometers, particularly useful at low temperature; (3) liquid hydrogen volume and mass gauges; and (4) para/ortho hydrogen ratiometers as mentioned in this paper.
Abstract: Four types of hydrogen detectors are used by researchers, engineers, and manufacturers
today, and if hydrogen continues to play a role in emerging alternative energy sources,
there will be exponential growth in the use and need for more advanced and more robust
devices in the future. The types of sensors reviewed in this chapter are (1) room-temperature hydrogen leak sensors; (2) thermometers, particularly useful at low temperature;
(3) liquid hydrogen volume and mass gauges; and (4) para/ortho hydrogen ratiometers.
631 citations
Cites methods from "Heat Transfer in the Cylinders of R..."
...Several models exist for evaluating the heat transfer coefficient h, of which the correlations of Woschni [128] and Annand [139] are the most widely used....
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TL;DR: In this article, a heat release model using a one zone description of the cylinder contents with thermodynamic properties represented by a linear approximation is presented. But the model does not consider the effects of heat transfer, crevice flows and fuel injection.
Abstract: In analyzing the processes inside the cylinder of an internal combustion engine, the principal diagnostic at the experimenter's disposal is a measured time history of the cylinder pressure. This paper develops, tests, and applies a heat release analysis procedure that maintains simplicity while including the effects of heat transfer, crevice flows and fuel injection. The heat release model uses a one zone description of the cylinder contents with thermodynamic properties represented by a linear approximation. Applications of the analysis to a single-cylinder spark-ignition engine, a special square cross-section visualization spark-ignition engine, and a direct-injection stratified charge engine are presented.
450 citations
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113 citations
01 Jun 1962
TL;DR: In this paper, a method of calculating this information by digital computer based on a fundamental approach to the processes involved is described. But this method is limited to diesel engines and it is not suitable for other types of engines.
Abstract: While the design of diesel engines is necessarily based upon some estimate of the pressure and temperature conditions expected in the cylinder and in the air and exhaust manifolds, such estimates have usually been very approximate. The suitability of the design has to be proved, or improved, during a considerable programme of rigorous developmentAs engines become more highly rated the value of more accurate early estimates of engine performance, as a guide to the designer, becomes more obvious. The paper describes a method of calculating this information by digital computer based on a fundamental approach to the processes involved. It is demonstrated that the cylinder pressures and temperatures, exhaust gas temperatures, fuel consumption, air flow, heat losses, piston and wall temperatures and engine output so calculated, correlate very well with experimental resultsUsing this technique, different combinations of engine variables can be ‘tested’ by computation to reduce the range of engine tests necessary...
35 citations
TL;DR: In this paper, the authors investigated the rate of heat transfer from the working gases to the combustion chamber walls of the internal combustion engines using a four stroke spark-ignition engine with a water cooled single cylinder.
Abstract: This investigation is concerned with the rates of heat transfer from the working gases to the combustion chamber walls of the internal combustion engines. The test engine used is a four stroke spark-ignition engine with a water cooled single cylinder, bore×stroke being 114.3×140 mm. On the basis of author's experimental results, it was ascertained that the coefficients of heat transfer in this engine agreed well with those which were calculated by Eichelberg's formula [numerical formula] in the expansion stroke, but did not so well in the compression stroke. Law of similarity has been rarely applied to the problems of periodic heat transfer in the internal combustion engines, but recently Karl Elser developed this research. In the present report, improving Elser's method, the relation between the dimensionless groups was found as follows, [numerical formula] where Δs : entropy change Cp : specific heat under constant pressure change θ : crank angle
34 citations
24 citations
01 May 1955
TL;DR: In this article, the Differentialgleichung des eindimensionalen Zustandsfeldes in a periodisch adiabat verdichteten, turbulent stromenden Gas gelost.
Abstract: Unter Zugrundelegung eines geeigneten Ansatzes fur die Warmeleitzahl wird die Differentialgleichung des eindimensionalen Zustandsfeldes in einem periodisch adiabat verdichteten, turbulent stromenden Gas gelost. Durch passende Wahl der Konstanten des Ansatzes kann der berechnele Verlauf der an die Wand ubertragenen Warme in vorzugliche Ubereinstimmung mit Mesergebnissen an Dieselmotoren gebracht werden.
12 citations