Evaluating method and device of multiple characteristics based on hydrocarbon fuel
A hydrocarbon fuel and evaluation method technology, applied in the aerospace field, can solve the problems of low computing efficiency, poor scalability, and insufficient space for software improvement and optimization.
Pending Publication Date: 2018-01-12
BEIHANG UNIV
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Problems solved by technology
However, the existing methods and devices have significant shortcomings, first of all, lack of specialization. The existing methods and devices provide a database of a large number of different substances, including pure substances, hydrocarbon fuels, inorganic substances, etc., to calculate the universality of substances The specificity is reduced, that is, the accuracy of hydrocarbon fuels is not very high; in addition, the calculation efficiency is not high, and the existing methods and devices cannot quickly and large-scale calculations when calculating the thermodynamic characteristics and transport properties of fuels; The scalability is poor, and the closed nature of the computing software makes its computing algorithm impossible to know. At the same time, the user-oriented interface is single, and there is insufficient room for software improvement and optimization.
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[0104] In order to make the purpose, technical solution and advantages of the present invention more clear, the evaluation method and device based on various characteristics of hydrocarbon fuels of the present invention will be further described in detail below in conjunction with the drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0105] It should be noted that, in an evaluation method based on various characteristics of hydrocarbon fuels proposed in this disclosure, the density ρ, viscosity η and thermal conductivity λ of hydrocarbon fuels are calculated using the generalized corresponding state law, that is, according to the relationship between hydrocarbon fuels and Solve the corresponding relationship of reference substances. The reference material is propane, and its state equation adopts the 32-parameter MBWR (Modified Benedict-Webb-Rubin) eq...
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The invention discloses an evaluating method of multiple characteristics based on hydrocarbon fuel. The method comprises the steps that multiple parameters of the hydrocarbon fuel are received, wherein the parameters are a critical parameter, a density-temperature relation parameter and a pressure-temperature relation parameter; the parameters are applied to a transport property calculation methodand an MBWR equation or error function method, specific parameter values are acquired, and evaluation of multiple characteristics based on the hydrocarbon fuel is completed, wherein the characteristics comprise thermodynamics characteristics and transport properties. The method has technicality, high calculation efficiency and good expansibility. The invention further discloses an evaluating device of multiple characteristics based on the hydrocarbon fuel.
Description
technical field [0001] The invention relates to the field of aerospace technology, in particular to an evaluation method and device based on various characteristics of hydrocarbon fuels. Background technique [0002] The fuel system is one of the key systems on aerospace vehicles. In order to design a fuel system with excellent performance, it is necessary to conduct in-depth calculation and research on the characteristics of the fuel, including accurate acquisition of its thermodynamic properties and transport properties. In the field of aerospace, hydrocarbon fuels are used as fuel, and the thermodynamic characteristics and transport properties of hydrocarbon fuels have been extensively studied and calculated. From a global perspective, the REFPROP and SUPERTRAAP software developed by NIST in the United States can provide a database of thermal physical properties of different working fluids and be applied to different industrial fields. However, the existing methods and d...
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IPC IPC(8): G06F19/00
Inventor 朱剑琴陶智程泽源李海旺邵文清郭帅帅
Owner BEIHANG UNIV