Monitoring Techniques for Thermosyphonsby Edward Yarmak, Jr., Arctic Foundations Inc, Anchorage, AK, USA,
Erwin L. Long, Arctic Foundations Inc, Anchorage, AK, USA,
Abstract: Two-phase thermosyphons used for passive soil refrigeration are monitored using a variety of techniques ranging from visual infrared scanning to measurement of internal pressures. Methods used to evaluate thermosyphon condition or performance vary seasonally. The authors present a comprehensive look at monitoring techniques that are currently in use and make recommendations for establishing monitoring plans for thermosyphons. Interpretation of data is discussed.
Subject Headings: Soil pressure | Seasonal variations | Imaging techniques | Pressure measurement | Passive pressure
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