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You searched on: Author: william healy

Displaying records 21 to 30 of 34 records.
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21. Remotely Accessed Photovoltaic Power Experiment
Published: 3/21/2006
Authors: W J Hutzel, William M Healy
Abstract: A solar energy experiment that estimates the number of photovoltaic panels needed to provide supplemental power for a typical residence is described. The project is unique because it uses freely available on-line resources for collecting and analyzi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860946

22. Lessons Learned in Wireless Monitoring
Published: 10/2/2005
Author: William M Healy
Abstract: The emergence of wireless communications technology has led to an increasing interest in sensors that are free from wiring constraints that increase the cost of installation of a sensor network and create a confusing collection of wires in a building ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860959

23. Fabrication of a Guarded-Hot-Plate Apparatus for Use Over an Extended Temperature Range and in a Controlled Gas Atmosphere
Published: 6/29/2005
Authors: Robert R Zarr, Daniel Robert Flynn, John W Hettenhouser, Nolan J Brandenburg, William M Healy
Abstract: This paper describes the fabrication of a guarded-hot-plate apparatus suitable for determining the steady-state thermal transmission properties of insulation specimens from 90 K to 900 K in a controlled gas atmosphere from 10^u-5^ kPa to 105 kPa. Th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860976

24. High-Temperature Guarded Hot Plate Apparatus Optimal Locations of Circular Heaters
Published: 6/1/2005
Authors: Daniel Robert Flynn, William M Healy, Robert R Zarr
Abstract: The National Bureau of Standards (now the National Institute of Standards and Technology (NIST)) pioneered the use of circular line-heat-sources in guarded hot plate (GHP) apparatus, the most common type of absolute apparatus for measurement of the t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860987

25. High-Temperature Guarded Hot Plate Apparatus Control of Edge Heat Loss
Published: 6/1/2005
Authors: Daniel Robert Flynn, William M Healy, Robert R Zarr
Abstract: The guarded hot plate (GHP) apparatus is the most common type of absolute apparatus for measurement of the thermal transmission properties of thermal insulation. As the name implies, the hot meter plate is surrounded by a coplanar guard plate, separa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861062

26. Detection of Moisture Accumulation in Wall Assemblies Using Ultra-Wideband Radio Signals.
Published: 12/5/2004
Authors: William M Healy, E Vandoorn
Abstract: This paper discusses the use of ultra-widehand radio signals near 5 GHz to detect moisture problems within building assemblies. Ultra-widehand signals are made up of a large spectrum of electromagnetic waves, and hardware is available to temporally r ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101195

27. Detection of Moisture Accumulation in Wall Assemblies Using Ultra-Wideband Radio Signals
Published: 12/1/2004
Authors: William M Healy, E NMI van Doorn
Abstract: This paper discusses the use of ultra-wideband radio signals to detect moisture problems within building assemblies. Ultra-wideband signals are made up of a large spectrum of electromagnetic waves, and hardware is available to temporally resolve the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861065

28. Development of an Optical Fiber-Based Moisture Sensor for Building Envelopes
Published: 10/1/2003
Authors: William M Healy, S Luo, M Evans, A Sucheta, Y Liu
Abstract: Optical fiber-based moisture sensors have been developed to help detect moisture problems in building envelopes. The sensors are created with a coating on a long period grating that is written onto optical fiber. As the coating absorbs moisture fro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860890

29. Variability in Energy Factor Test Results for Residential Electric Water Heaters
Published: 10/1/2003
Authors: William M Healy, J D Lutz, A B Lekov
Abstract: Recent modifications to the minimum energy efficiency requirements for residential water heaters have spurred an investigation into the variability in testing high-efficiency electric water heaters. While initial inter-laboratory comparisons showed ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860888

30. Design Concepts for a New Guarded Hot Plate Apparatus for Use Over an Extended Temperature Range
Published: 10/1/2002
Authors: D R Flynn, Robert R Zarr, Mahn-Hee Hahn, William M Healy
Abstract: The National Institute of Standards and Technology is building a new guarded hot plate apparatus (GHP) for use at temperatures from 90 K to 900 K, with provision to conduct tests in various gases at controlled pressures from 0.013 Pa to 0.105 MPa ({a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860860



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