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  • Published Date
Displaying 151 - 175 of 176

Advancing Automated Demand Response Technology

January 28, 2009
Author(s)
Steven T. Bushby, David G. Holmberg
For several years electric utilities have implemented a wide variety of programs to curtail load in times of stress on the electricity distribution grid or on generating capacity. Although these programs have shared a common goal of reducing peak

Facility Interface to the Smart Grid

December 31, 2008
Author(s)
David G. Holmberg
Homes, commercial buildings and the industrial sector together represent 100 percent of the load on the electric grid. Beyond load, these facilities provide a growing amount of electric generation and storage in the form of distributed energy resources

Building Networks and Public Safety Communications

November 18, 2008
Author(s)
David G. Holmberg, Stephen J. Treado, William D. Davis, Steven T. Bushby, Alan B. Vinh, Michael A. Galler, R Vettori
The Building Networks and Public Safety Communications project has three components: (1) addressing feasibility of using building networks for bridging first responder radio communications into buildings, (2) recommending changes to the SAFECOM Statement

Practical Challenges in Wireless Sensor Network Use in Buildings

September 30, 2008
Author(s)
William M. Healy, Won Suk Jang
While wireless sensor network technology has advanced in recent years, potential users of these systems in buildings still have concerns with their use. This report summarizes results of a literature survey and interactions with building industry

Using the BACnet Communications DLL v1.0

September 29, 2008
Author(s)
Michael A. Galler
The BACnet standard [1] defines a communication protocol for information exchange between components of a distributed building automation and control system. The BACnet Communications Dynamically Linked Library (DLL) enables researchers to implement

HVACSIM+ User's Guide Update

July 1, 2008
Author(s)
Cheol D. Park
The first version of HVACSIM+, which stands for “HVAC SIMulation PLUS other systems”, as introduced by National Institute of Standards and Technology (NIST) in 1985 as a computer simulation tool to simulate entire building systems [1]. Since then, the

R-22 Replacement Status (in Russian)

June 25, 2008
Author(s)
J M. Calm, Piotr A. Domanski
Since its initial recognition in 1928 and commercialization in 1936, R-22 has been applied in systems ranging from the smallest window air conditioners to the largest chillers and heat pumps, including those for district cooling and heating. Individual

Energy Systems Management and Greenhouse Gas Reduction

April 6, 2008
Author(s)
Stephen J. Treado, David G. Holmberg
The efficient use of energy provides the double benefits of controlling both energy costs and greenhouse gas (GHG) emissions. The industrial sector comprises about one third of United States GHG emissions, so presents an attractive opportunity for

Authentication and Authorization of Building Information Users in BACnet

January 1, 2008
Author(s)
Stephen J. Treado, Alan B. Vinh, Steven T. Bushby
Building automation systems frequently monitor critical building information that would be extremely useful for emergency responders including the status of alarms, locations of occupants, temperature, and air quality conditions. Emergency response can be

State-of-the-Art Review for Commissioning Low Energy Buildings: Existing Cost/Benefit and Persistence Methodologies and Data, State of Development of Automated Tools and Assessment of Needs for Commissioning ZEB

August 1, 2007
Author(s)
Marti Frank, Hannah Friedman, Kristin Heinemeier, Cory Toole, David Claridge, Natascha S. Milesi-Ferretti, Philip Haves
This report documents the findings of a review of the state of the art in the commissioning of low energy buildings. The purpose of this report is threefold: 1) To identify and assess existing methodologies for defining the costs and benefits of

ECBCS Annex 47: Cost-Effective Commissioning Research

November 20, 2006
Author(s)
Natascha S. Milesi-Ferretti, Hannah Friedman, Marti Frank
In 2005, the Executive Committee of the International Energy Agency s (IEA) Energy Conservation in Buildings and Community Systems (ECBCS) program approved the start of a new four-year research project on building commissioning. Annex 47, on Cost-Effective

Lessons Learned in Wireless Monitoring

October 2, 2005
Author(s)
William M. Healy
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. In

Exploration of Potential Energy Saving From Smart Appliances

July 1, 2005
Author(s)
Natascha S. Milesi-Ferretti
Technological innovations coupled with the decreasing costs of sensors have brought about a new generation of Smart appliances. While current sensor-based appliances have shown the potential to offer consumers increased options for energy and cost savings

Vibration Signatures for Three Positive Displacement Compressors

December 1, 2004
Author(s)
David A. Yashar, William V. Payne
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

A Test Shell for Developing Automated Commissioning Tools for BACnet Systems

May 20, 2003
Author(s)
Natascha S. Milesi-Ferretti, Michael A. Galler, Steven T. Bushby
spite advances in building automation technology, many building control systems do not work as intended. Thorough commissioning of control systems can significantly improve operation but it is manually intensive and thus expensive and often neglected

Energy Consumption Measurements Using AHAM HRF-1 and ISO 8561

March 10, 2003
Author(s)
David A. Yashar
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
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