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Displaying 1226 - 1250 of 3876

Application of an Evolution Program for Refrigerant Circuitry Optimization

December 7, 2007
Author(s)
Piotr A. Domanski, David A. Yashar
Increased concerns about climate change have emphasized the importance of air-conditioning and refrigeration systems with a high coefficient of performance (COP). The effectiveness of heat exchangers significantly influences the vapor-compression system s

NIST Fire Fighter Technology Program Overview (NIST SP 1051)

December 1, 2007
Author(s)
Nelson P. Bryner
The Advanced Fire Service Technologies (AFST) Program objectives are to (*) Provide the science and performance metrics for development and implementation of new technology, (*) Enable an information-rich environment, firefighter training tools, and

Performance of Home Smoke Alarms Analysis of the Response of Several Available Technologies in Residential Fire Settings (NIST TN 1455-1)

December 1, 2007
Author(s)
Richard W. Bukowski, Richard D. Peacock, Jason D. Averill, Thomas G. Cleary, Nelson P. Bryner, William D. Walton, Paul A. Reneke, Erica D. Kuligowski
This report presents the results of the project and provides details of the response of a range of residential smoke alarm technologies in a controlled laboratory test and in a series of real-scale tests conducted in two different residential structures

Preliminary Performance Assessment of Commercially-Available Hydrogen Sensors

November 12, 2007
Author(s)
Nathan D. Marsh, Thomas G. Cleary
As part of an effort to develop standard test methods for the performance of commercial hydrogen sensors, we employed the Fire Emulator / Detector Evaluator, an instrumented flow system designed to study the response of fire detectors (smoke, heat, gas)

Advanced Technology for Fire Suppression in Aircraft

November 6, 2007
Author(s)
Richard G. Gann
In its decade of systematic research (1997-2006), the NGP revitalized the field of fire suppression science. The NGP arose as a result of a discovery that garnered the Nobel Prize for two accomplished chemists and legislation that turned science into

BACnet at Georgia Tech

November 1, 2007
Author(s)
Donald Alexander, Cornelius Ejimofor, David Holmberg
The Van Leer building at Georgia Tech was selected for a pilot project to study the feasibility of using an RTP-based temperature setback approach to energy savings for the campus. Georgia Tech saved approximately 7000 kWh of power and $1000 using the RTP

BACnet Measures Up

November 1, 2007
Author(s)
Steven T. Bushby
BACnet was developed to enable integration of building automation and control products from multiple vendors and to allow building owners the freedom to by products based on price and performance, rather than compatibility with currently installed building

Parallel-Plate Rheometer Calibration Using Oil and Lattice Boltzmann Simulation

October 11, 2007
Author(s)
Chiara F. Ferraris, Nicos Martys, M R. Geiker, N V. Muzzatti
The flow in traditional rotational rheometers is well known and rheological parameters such as viscosity can be calculated relatively easily. On the other hand, when the fluid is a suspension that contains particles with a diameter up to 2 mm, these

A Microfabricated Flow Controller for Refrigerant Expansion

October 1, 2007
Author(s)
David A. Yashar, Piotr A. Domanski, Don DeVoe
A flow controller for refrigerant expansion is reported. Devices are fabricated using a micromolding technique developed for thick nickel electroplating. The device consists of a short tube restrictor with an integrated normally-open valve which, when

The Decontamination for Building Plumbing Systems - Analysis and Procedures

September 30, 2007
Author(s)
Stephen J. Treado
This report describes the results of measurements and analysis of methods to decontaminate building plumbing systems in the event of the accidental or intentional introduction of undesirable substances via the water supply system. The work described was

Analysis of Thermocouple Behavior in Compartment Fires

September 27, 2007
Author(s)
Sung C. Kim, Anthony P. Hamins, Matthew F. Bundy, Gwon Ko, Erik L. Johnsson
The present study uses numerical simulations and analytical solutions to investigate the heat transfer processes associated with bare bead and double shield aspirated thermocouples. The uncertainty of thermocouple temperature measurements is emphasized

Effect of Lubricant on R410A Horizontal Flow Boiling

September 27, 2007
Author(s)
N N. Sawant, Mark A. Kedzierski, J S. Brown
The paper experimentally quantified the effect of lubricant on horizontal flow boiling of R410A. This was accomplished by first establishing a baseline by measuring the convective boiling heat transfer performance of pure R410A. The heat transfer
Displaying 1226 - 1250 of 3876
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