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Hydrogen as an energy carrier has received much attention in recent years as a result of a confluence of economic, environmental, and political pressures on the continued use of fossil fuels. The benefits of using hydrogen fuel over fossil fuel products
This report documents the development and testing of the LES (Large Eddy Simulator) version of the WRF (Weather Research and Forecasting) model coupled with SFIRE, the wildland surface fire module, to simulate wildland fires. The relevance of this work to
This paper quantifies the influence of Al2O3 nanoparticles on the pool boiling performance of R134a/polyolester mixtures on a Turbo-BII-HP boiling surface. An Al2O3 nanolubricant (a lubricant containing dispersed nano-size particles) was made by suspending
Dong H. Rim, Lance L. Wallace, Andrew K. Persily, Jung I. Choi
Indoor ultrafine particles (UFP, 24 nm. The model was parameterized using different values of the Hamaker constant for predicting the coagulation rate. Deposition was determined for two different conditions: central fan on vs. central fan off. For the case
The National Electrical Manufacturer's Association (NEMA) and the American Society of Heating Refrigerating, and Air-Conditioning Engineers (ASHRAE) are working to cooperatively develop a national Facility Smart Grid Information Model standard. This
The role of buildings in the electric grid is steadily being transformed to that of active participant in managing the grid, serving as a key player in maintaining grid reliability. The necessity for this transformation is based on three factors: grid
Maria E. Garlock, Spencer E. Quiel, Ignacio Paya-Zaforteza
Reports by the National Institute of Standards and Technology (Gann 2005), the UKbased Institution of Structural Engineers (IStructE) (Roberts 2002), and a national workshop on state-of-the-art of structural-fire engineering (Kodur et al. 2007) all have
Cooking related fires are a leading cause of U.S. fire loss. Beginning in the mid 1980's, the National Institute of Standards and Technology, Consumer Product Safety Commission, and the home appliance industry undertook a comprehensive review 1 of
A study was conducted to evaluate the potential for using a linear relationship between the power input to a residential water heater and the output of thermal energy in hot water for rating the units energy efficiency. This approach has the potential for
Natascha S. Milesi-Ferretti, Michael A. Galler, Farhad Omar
This paper discusses the issue of standby power in the Department of Energys (DOE) residential appliance test procedures. Section 1 introduces DOEs legislative mandate, briefly discusses the rise of standby power in white products, and gives a sense of
The National Institute of Standards and Technology (NIST) is the leader in the development of computer-based fire models that simulate the movement of fire gases and heat through a building and estimate the response of various fire protection systems. NIST
A number of computational tools have been developed in recent years to simulate the disproportionate (progressive) collapse behavior of multi-story reinforced concrete buildings. Under disproportionate collapse scenarios, beam-column connections of moment
Collapse analyses of a 10-story reinforced concrete frame building are carried out to investigate the robustness of structural systems against column removal scenarios. Computationally efficient reduced models are developed and used in the analyses. The
Hai S. Lew, Yihai Bao, Fahim Sadek, Joseph A. Main, Santiago Pujol, Mete Sozen
This report presents an experimental and computational study of two reinforced concrete beam-column assemblies, each comprising three columns and two beams. The two beam-column assemblies represent portions of the structural framing system of two ten-story
Richard Lau, Sami Ayyorgun, Siun Chuon Mau, Archan Misra, David Holmberg, Steven T. Bushby
While it is well recognized that renewable microgrid generation and intelligent storage can significantly reduce a building's need for grid power and its peak loading, there is currently no sound and generalized approach to combine these two technologies
In 1998, Persily published a review of commercial and institutional building airtightness data that found significant levels of air leakage and debunked the myth of the airtight commercial building. Since that time, the U.S. National Institute of
Evacuation models, including engineering hand calculations and computational tools, are used to evaluate the level of safety provided by buildings during evacuation. Building designs and occupant procedures are based on the results produced from these
This paper describes the development and implementation of a simulation testbed used to study the concept of employing intelligent agents to optimize the performance of building Heating, Ventilating, and Air Conditioning (HVAC) systems. One day simulated
This guide describes how to use SteelVis and its associated programs. SteelVis has two main functions: (1) to translate a CIS/2 (CIMsteel Integration Standards) file into an interactive 3D model in the form of a VRML (Virtual Reality Modeling Language)
This paper presents a simple model to demonstrate the effect on grass-fire propagation of the winds induced by structural fires in a Wildland-Urban Interface (WUI) setting. The model combines an empirical formula for wind-driven grass-fire spread and a
Amy S. Rushing, Joshua D. Kneifel, Barbara C. Lippiatt
This is the 2011 edition of energy price indices and discount factors for performing life-cycle cost analyses of energy and water conservation and renewable energy projects in federal facilities. It will be effective from April 1, 2011 to March 31, 2012
Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Paul L. Brown, John H. Dymond, Robert N. Goldberg, Anthony R. Goodwin, Heiko Heerklotz, Erich Koenigsberger, John E. Ladbury, Kenneth N. Marsh, David P. Remeta, Stephen E. Stein, William A. Wakeham, Peter A. Williams
ThermoML is an XML-based approach for storage and exchange of experimental, predicted, and critically evaluated thermophysical and thermochemical property data. Extensions to the ThermoML schema for the representation of speciation, complex equilibria, and