Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938)

[ACTIVE]

The Activated Alumina System as Applied to Air-Conditioning and Drying Problems

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The phenomenon of adsorption is discussed. Some of the properties of the solid adsorbent, activated alumina, are given, including a dynamic characteristic curve. This dynamic characteristic is utilized industrially to dry air and gases to dewpoints as low as —76°C (0.0004 grain per cu. ft.; 0.0009 milligram per liter). Apparatus utilizing activated alumina in this way is described and pictured. Uses of the system include drying controlled atmospheres and bottled gases, and in chemical processing when water-vapor would promote corrosion or adversely affect the processes. Compressed-air lines are kept free of water to prevent freeze-up in winter or spoilage of work. In industrial and comfort air-conditioning, comparatively large quantities of partially dried air are required. A continuous dehumidifier to meet these requirements is described and illustrated. It is pointed out that performance is a function of machine design as well as of the fundamental characteristics of the solid adsorbent used. Depending upon the factors of first cost and economy of operation, a wide range of performance may be obtained. A curve shows the present-day characteristic of a line of machines that is commercially available.
Publication Date: 1938-04-01
DOI: 10.5594/J16602
Link: https://doi.org/10.5594/J16602
Author(s): G. L. Simpson

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G. L. Simpson; The Activated Alumina System as Applied to Air-Conditioning and Drying Problems, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J16602

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G. L. Simpson; The Activated Alumina System as Applied to Air-Conditioning and Drying Problems, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J16602

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<span class="citation">G. L. Simpson; <cite>The Activated Alumina System as Applied to Air-Conditioning and Drying Problems</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938. Available at <a href="https://doi.org/10.5594/J16602" target="_blank" rel="noopener">https://doi.org/10.5594/J16602</a></span>

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<li>
G. L. Simpson; <cite id="bib-10-5594-j16602">The Activated Alumina System as Applied to Air-Conditioning and Drying Problems</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938
<span class="doi">10.5594/J16602</span>
</li>