An Algorithm for Computing Nonflow Gas Processes in Gas Springs and Hydropneumatic Accumulators

[+] Author and Article Information
D. R. Otis, A. Pourmovahed

Mechanical Engineering Department, University of Wisconsin-Madison, Madison, Wis. 53706

J. Dyn. Sys., Meas., Control 107(1), 93-96 (Mar 01, 1985) (4 pages) doi:10.1115/1.3140714 History: Received April 26, 1983; Online July 21, 2009


An algorithm for computing nonflow gas processes is based on the Benedict-Webb-Rubin equation of state and a thermal time constant to describe heat transport. Specific results are presented for an accumulator charged with nitrogen operating in the range 60 to 150 atmospheres and 200 to 330°K. The computer results compare favorably with NBS nitrogen property data and with experimental measurements for an expansion process and a sinusoidal cycle.

Copyright © 1985 by ASME
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