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Topic Area: Cybernetic Building Systems
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11. Design, Measurements and Performance Predictions for a Micromolded Refrigerant Expansion Device
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7327
Topic: Cybernetic Building Systems
Published: 4/3/2006
Author: David A Yashar
Abstract: The design, fabrication and testing of a thermopneumatic microfabricated valve for controlling refrigerant mass flow rate during expansion is presented in this report. This device was fabricated through nickel electroplating within very thick SU-8 m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861013

12. Lessons Learned in Wireless Monitoring
Topic: Cybernetic Building Systems
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

13. Vibration Signatures for Three Positive Displacement Compressors
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7183
Topic: Cybernetic Building Systems
Published: 12/1/2004
Authors: David A Yashar, William V Payne
Abstract: This report presents vibration data for three positive displacement compressors which will be used to evaluate Microelectromechanical Systems (MEMS) vibration sensors at a later time. The axial, radial and tangential vibration signatures of three co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860964

14. Energy Consumption Measurements Using AHAM HRF-1 and ISO 8561
Topic: Cybernetic Building Systems
Published: 3/10/2003
Author: David A Yashar
Abstract: This investigation compares the energy consumption ratings obtained for refrigerators using the Association of Home Appliance Manufacturers (AHAM) HRF-1 test procedure, as adopted by the United States Department of Energy (DOE), and the International ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860896

15. An Investigation of Refrigerant Void Fraction in Horizontal, Microfin Tubes
Topic: Cybernetic Building Systems
Published: 1/1/2001
Authors: David A Yashar, M J Wilson, HM RJ Kopke, D M Graham, J C Chato, TJD ACM Newell
Abstract: A series of experiments to determine void fraction in both condensation and evaporation have been performed in horizontal microfin tubes with refrigerants R134a and R410A. Mass flux varied from 75 kg/m2-s to 700 kg/m2-s and average test section qual ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860827