Develop a New Test Method that Allows Controlled and Dynamic Changes in Temperature and Humidity While Measuring the Pressure Drop Across the Fabric
Author: Joshua Pettis
Publisher:
Published: 2021
Total Pages: 73
ISBN-13:
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Author: Joshua Pettis
Publisher:
Published: 2021
Total Pages: 73
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Published: 1986
Total Pages: 324
ISBN-13:
DOWNLOAD EBOOKAuthor: Walter Araujo Zin
Publisher: Frontiers Media SA
Published: 2022-11-14
Total Pages: 214
ISBN-13: 2832505422
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Published: 1961-05
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKThe Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Author: Hui Li
Publisher: Trans Tech Publications Ltd
Published: 2011-10-24
Total Pages: 2840
ISBN-13: 3038137553
DOWNLOAD EBOOKVolume is indexed by Thomson Reuters CPCI-S (WoS). These peer-reviewed papers record the invaluable researches of the authors in the fields of innovation in structural system and disaster prevention in engineering structures, architectural innovation, sustainable development of buildings and the environment and innovations in, and applications of, building materials. Hot topics and state-of-the-art view related to sustainable development in civil engineering are presented.
Author: Nathan Lanci
Publisher:
Published: 2016
Total Pages: 20
ISBN-13:
DOWNLOAD EBOOKPhase change material (PCM) applications are expanding in sportswear, protective apparel, and in consumer goods industries. ASTM D7024-04, Standard Test Method for Steady State and Dynamic Thermal Performance of Textile Materials, previously was used to evaluate these fabrics. Although the method was based in sound science, it had little practical application to the industry and was not widely embraced. ASTM D7024-04 has since been withdrawn without replacement. In order to provide the industry with a suitable tool for evaluating PCM impact on human sensation, Thermetrics has developed an instrument and methodology to accurately characterize transient and steady-state fluxes in a range of environmental scenarios. The dynamic hot plate (DHP) extends the guarded hot plate concept to measure instantaneous heat flux. The addition of active cooling mimics the human circulatory system and allows continuous measurement under sustained thermal load and elevated ambient temperatures. Typically in these scenarios, conventional guarded hot plate devices overheat and are unable to measure the transient heat fluxes. The DHP was initially validated using measurements of test specimens with known thermal and PCM properties. After this validation, specific methodologies for evaluating PCM fabrics/materials were developed. These methods were focused on evaluating cool-to-touch sensation and cooling performance in uncompensable work environments. The proposed DHP instrument and methodology have demonstrated the ability to detect and quantify PCM in fabric samples. The resulting measure of performance is based on actual skin energy exchange, allowing the use of measurements to assess sensory impact and physiological relevance.
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Published: 1995
Total Pages: 704
ISBN-13:
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Published: 1961
Total Pages: 702
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DOWNLOAD EBOOKAuthor: American Society of Heating, Refrigerating and Air-Conditioning Engineers
Publisher:
Published: 2016-06-21
Total Pages: 0
ISBN-13: 9781939200426
DOWNLOAD EBOOKMoisture control is fundamental to the proper functioning of any building. Controlling moisture is important to protect occupants from adverse health effects and to protect the building, its mechanical systems and its contents from physical or chemical damage. Yet, moisture problems are so common in buildings, many people consider them inevitable. Excessive moisture accumulation plagues buildings throughout the United States, from tropical Hawaii to arctic Alaska and from the hot, humid Gulf Coast to the hot, dry Sonoran Desert. Between 1994 and 1998, the U.S. Environmental Protection Agency (EPA) Building Assessment Survey and Evaluation (BASE) study collected information about the indoor air quality of 100 randomly selected public and private office buildings in the 10 U.S. climatic regions.
Author: Frank J. Powell
Publisher: ASTM International
Published: 1987
Total Pages: 750
ISBN-13: 0803104936
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