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An Innovative Technique for Evaluating the Integrity and Durability of Wind Turbine Blade Composites

Description: Wind turbine blades are subjected to complex multiaxial stress states during operation. A review of the literature suggests that mixed mode fracture toughness can be significantly less than that of the tensile opening mode (Mode I), implying that fracture failure can occur at a much lower load capacity if the structure is subject to mixed-mode loading. Thus, it will be necessary to identify the mechanisms that might lead to failure in blade materials under mixed-mode loading conditions. Meanwhi… more
Date: September 1, 2010
Creator: Wang, Jy-An John & Ren, Fei
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Aqua-Ammonia Chiller Technologies and Field Site Installation

Description: The Naval Facilities Engineering Service Center (NFESC) has sponsored Oak Ridge National Laboratory (ORNL) to review, select, and evaluate advanced, gas-fired, 5-ton, aqua-ammonia, chiller technologies. The selection criteria was that units have COP values of 0.67 or better at Air-conditioning and Refrigeration Institute (ARI) 95 F outdoor rating conditions, an active refrigerant flow control, and a variable-speed condenser fan. These features are expected to allow these units to operate at hig… more
Date: September 1, 2007
Creator: Zaltash, Abdolreza
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

2D Thermal Hydraulic Analysis and Benchmark in Support of HFIR LEU Conversion using COMSOL

Description: The research documented herein was funded by a research contract between the Research Reactors Division (RRD) of Oak Ridge National Laboratory (ORNL) and the University of Tennessee, Knoxville (UTK) Mechanical, Aerospace and Biomedical Engineering Department (MABE). The research was governed by a statement of work (SOW) which clearly defines nine specific tasks. This report is outlined to follow and document the results of each of these nine specific tasks. The primary goal of this phase of the… more
Date: September 1, 2010
Creator: Freels, James D; Bodey, Isaac T; Lowe, Kirk T & Arimilli, Rao V
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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