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TECHNICAL BRIEFS

Power Assessment of Flowing Compressed Air

[+] Author and Article Information
Maolin Cai, Kenji Kawashima

Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa Prefecture, 226-8503 Japan

Toshiharu Kagawa

Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa Prefecture, 226-8503 Japancaiml@k-k.pi.titech.ac.jp

J. Fluids Eng 128(2), 402-405 (Sep 04, 2005) (4 pages) doi:10.1115/1.2170129 History: Received March 12, 2004; Revised September 04, 2005

This study proposes a new concept for quantifying the energy of flowing compressed air, called air power. Air power is defined as the work-producing potential of compressed air, and its definition and general equation are presented. The properties of air power are also discussed. Air power is comprised of two components, transmission power and expansion power, while air temperature and kinetic energy can generally be neglected.

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Copyright © 2006 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

A typical compressed air system

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Figure 2

Energy flow and air state change

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Figure 3

Ideal production and ideal consumption of compressed air

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Figure 4

P-V diagram of ideal production and consumption

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Figure 5

Energy flow in compressed air systems

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Figure 6

Temperature influence on air power

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Figure 7

Composition of air power

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Figure 8

Ratio of kinetic energy in air power

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