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in subjects: "Ducts"

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Installation package for Hyde Memorial Observatory, Lincoln, Nebraska

This report contains installation information for a solar heating system installed in Hyde Memorial Observatory at Lincoln, Nebraska. This package includes a system operation and maintenance manual, hardware brochures, schematics, system operating modes and drawings. The Solar Engineering and Equipment Company (SEECO) developed this prototype solar heating system, which consists of the following subsystems: solar collector, control, and storage.

Date: December 1, 1978

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Urban alternative homestead

The three main areas of work were in redesigning and correcting the design flaws of the active heating system, the passive solar heating system, and the furnace controls, so that the building would heat and cool itself more efficiently and evenly than it had before. The active system was re-plumbed, fixing leaks, and adding joints and parts needed to work properly. Its tanks were insulated and new pumps installed. The passive system was reworked by adding a shadescreen to the outside of the gre… more

Date: January 1, 1980

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Hazards control progress report No. 57, October-March 1979

Progress is reported in research on the following subjects: gas chromatographic/mass spectrometric analysis of thermal degradation products from wood and composite burns; corrosion in the experimental ducting of the fire test cell; on-line x-ray fluorescence analysis of transition metals in waste water: Phase II; fire environmental tests for self-contained breathing apparatus; developments in neutron spectrometry; and, intermediate energy x-ray spectra for general shielding calculations. (JGB)

Date: August 20, 1979

Creator: Griffith, R.V. (ed.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Developing flow and heat transfer in strongly curved ducts of rectangular cross-section

A numerical study of heat transfer in 90/sup 0/, constant cross-section curved duct, steady, laminar flow is presented. The work is aimed primarily at characterizing the effects of duct geometry on heat transfer by considering, especially, the role of secondary motions during the developing period of the flow. However, due consideration has also been given to varying initial conditions of velocity and temperature at the entrance section to the duct. In addition, an assessment is made of the rel… more

Date: April 1, 1979

Creator: Yee, G. & Humphrey, J.A.C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Placement of the radiochemical processing plant at Oak Ridge National Laboratory into a safe standby condition

Extensive upgrade, cleanup, and decontamination efforts are being conducted for appropriate areas in the Radiochemical Processing Plant (RPP) with the goal of achieving ''safe standby'' condition by the end of FY 1989. The ventilation system must maintain containment; thus, it is being upgraded via demolition and replacement of marginally adequate ductwork, fans, and control systems. Areas that are being decontaminated and stripped of various services (e.g., piping, ductwork, and process tanks)… more

Date: January 1, 1986

Creator: Holladay, D. W.; Bopp, C. D.; Farmer, A. J.; Johnson, J. K.; Miller, C. H.; Powers, B. A. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Characteristics of attached radon-222 daughters under both laboratory and underground uranium-mine environments

The organic, inorganic, and radiological characteristics of airborne aerosols have been measured as a function of particle size in controlled atmosphere test chambers and operating uranium mines. Concentrations of benzo(a)pyrene in two mines ranged from 26 to 57 ng/m/sup 3/ of air. The carbon chain length of adsorbed n-alkanes was correlated with particle size. Normal mining activities produced an ore dust aerosol with mass median aerodynamic diameter (MMAD) greater than 2 ..mu..m. The elements… more

Date: September 1, 1981

Creator: Jackson, P. O.; Cooper, J. A.; Langford, J. C. & Petersen, M. R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Monte Carlo and Discrete Ordinates Calculations of 14-MeV Neutrons Streaming Through a Stainless-Steel Duct (L/D = 4. 6): Comparison With Experiment

Integral experiments are being carried out at the Oak Ridge National Laboratory to measure neutron and gamma-ray energy spectra from approx. 14 MeV neutrons streaming through cylindrical ducts imbedded in concrete. These data are being used to validate radiation transport code and nuclear data libraries that are being used to calculate nuclear streaming through the penetrations that are found in fusion reactor blanket and shield assemblies. In this paper, measured and calculated neutron and gam… more

Date: January 1, 1985

Creator: Santoro, R. T.; Barnes, J. M.; Alsmiller, R. G., Jr. & Drischler, J. D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Techniques developed to evaluate the fracture toughness offast breeder reactor duct. [Use of J-integral tests]

Large changes in strength and ductility of metals after irradiation are known to occur. The fracture toughness of irradiated metals, which is related to the combined strength and ductility of a material, may be significantly reduced and the potential for unstable crack extension increased. Therefore, the resistance of cladding and duct materials to fracture after exposure to fast neutron environments is of concern. Existing Type 316 stainless steel irradiated ducts are relatively thin and since… more

Date: January 1, 1979

Creator: Huang, F. H. & Wire, G. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Duct injection technology prototype development: Evaluation of engineering data

The objective of the Duct Injection Technology Prototype Development Project is to develop a sound design basis for applying duct injection technology as a post-combustion SO{sub 2}emissions control method to existing coal-fired power plants. The necessary engineering design and scale-up criteria will be developed for the commercialization of duct injection technology for the control of SO{sub 2} emissions from coal-fired boilers in the utility industry. The primary focus of the analyses summar… more

Date: July 1, 1990

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Evaluation of the magnitude and effects of bundle duct interaction in fuel assemblies at developmental plant conditions

Purpose of this evaluation is to estimate the magnitude and effects of irradiation and creep induced fuel bundle deformations in the developmental plant. This report focuses on the trends of the results and the ability of present models to evaluate the assembly temperatures in the presence of bundle deformation. Although this analysis focuses on the developmental plant, the conclusions are applicable to LMFBR fuel assemblies in general if they have wire spacers.

Date: September 1, 1980

Creator: Serell, D. C. & Kaplan, S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Evaluation of the streaming-matrix method for discrete-ordinates duct-streaming calculations

A new deterministic streaming technique called the Streaming Matrix Hybrid Method (SMHM) is applied to two realistic duct-shielding problems. The results are compared to standard discrete-ordinates and Monte Carlo calculations. The SMHM shows promise as an alternative deterministic streaming method to standard discrete-ordinates.

Date: January 1, 1983

Creator: Clark, B. A.; Urban, W. T. & Dudziak, D. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Sectioning of contaminated components for decontamination by vibratory finishing and electropolishing

This report summarizes work conducted to develop, adapt, and evaluate a variety of techniques for sectioning glove boxes, chemical processing equipment, pipes, ducts, and other contaminated components in preparation for decontamination by vibratory finishing and electropolishing. These sectioning studies were conducted with a special 10-ft x 20-ft x 10-ft stainless-steel, walk-in glove box equipped for either hands-on operation via gloves and personnel entry, or remote operation using master sl… more

Date: September 1, 1981

Creator: Fetrow, L. K. & Allen, R. P.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Wood burning fireplace. Final technical report

This project involved the construction of a fireplace to heat a commercial building. The project was successful in that it demonstrated that wood could be used to heat a commercial building in a properly constructed fireplace.

Date: October 5, 1981

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Duct injection technology prototype development

This report describes a test program conducted to determine the corrosion rate of materials in the dry scrubber or duct injection systems. Four materials were evaluated: 1010 carbon steel, Corten, 317SS and Hastelloy C-276. The results show that acidic conditions result in higher corrosion rates than alkaline conditions for all the materials. The carbon steel, Corten and stainless steel show moderate to heavy pitting attack in the acidic environment. For the alkaline conditions, the corrosion r… more

Date: August 1, 1991

Creator: Harper, S.L. (Babcock and Wilcox Co., Alliance, OH (United States). Research and Development Div.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Fundamental investigation of Duct/ESP phenomena: 1. 7 MW pilot parametric testing results

Radian Corporation was contracted to investigate duct injection and electrostatic precipitator phenomena in a 1.7-MW pilot plant constructed for this test program. This study was an attempt to resolve previous problems and to answer remaining questions with the technology using an approach which concentrated on the fundamental mechanisms of the process. The goal of the study was to obtain a better understanding of the basic physical and chemical phenomena that control: (1) the desulfurization o… more

Date: July 22, 1991

Creator: McGuire, L. M. & Brown, C. A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Pipe crawler development for duct elbow removal

This paper describes the development of equipment for removing an elbow in a 36 inch diameter ventilation line by cutting from the inside. Radiation levels, high air flow and physical constraints preclude any manual rework of the ventilation system. A remotely operated pipe crawler was developed. Testing has been performed in a full-scale mockup which models the ventilation duct configuration with the exception of radiation levels. The results gathered from the testing are discussed, and illust… more

Date: January 1, 1992

Creator: Zollinger, W.T. & Treanor, R.C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Testing the effectiveness of mobile home weatherization measures in a controlled environment: The SERI CMFERT (Collaborative Manufactured Buildings Facility for Energy Research and Training) Project

For several years the Solar Energy Research Institute has been testing the effectiveness of mobile home weatherization measures, with the support of the US DOE Office of State and Local Assistance Programs Weatherization Assistance Program, the DOE Office of Buildings and Community Systems, the seven states within the federal Weatherization Region 7, the Colorado Division of Housing, and the DOE Denver Support Office. During the winter of 1988--89, several weatherization measures were thermally… more

Date: March 1, 1990

Creator: Judkoff, R. D.; Hancock, C. E. & Franconi, E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Conjunction of Multizone Infiltration Specialists (COMIS) fundamentals

The COMIS workshop (Conjunction of Multizone Infiltration Specialists) was a joint research effort to develop a multizone infiltration mode. This workshop (October 1988--September 1989) was hosted by the Energy Performance of Buildings Group at Lawrence Berkeley Laboratory's Applied Science Division. The task of the workshop was to develop a detailed multizone infiltration program taking crack flow, HVAC-systems, single-sided ventilation and transport mechanism through large openings into accou… more

Date: May 1, 1990

Creator: Feustel, H.E. & Rayner-Hooson, A. (eds.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Review of accident analysis calculations, 232-Z seismic scenario

The 232-Z Building houses what was previously the incinerator facility, which is no longer in service. It is constructed out of concrete blocks and is approximately 37 ft wide by 57 ft long. The building has a single story over the process areas and two stories over the service areas at the north end of the building. The respective roofs are 15 ft and 19 ft above grade and consist of concrete over a metal decking, with insulation and a built-up asphalt gravel covering. This facility is assumed … more

Date: May 1, 1993

Creator: Ballinger, M.Y.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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LOFT CIS analysis: 24'' H and V Duct outside penetration S-12A

The 24'' H and V Duct and related piping outside the LOFT containment and connected to containment penetration S-12A were analyzed to ASME Section III, Subsection NC (Class 2) criteria. The duct is part of the Containment Isolation System. The model considered the duct from the containment O.D. outward through the second isolation valve. Results of this analysis show that this section of the line will meet Class 2 requirements without modification.

Date: August 18, 1978

Creator: Pierce, A.T.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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OTEC platform configuraion and integration study. Volume 2. Technical concept. Final report

The primary objective of this conceptual design sutdy was to maximize the cost effectiveness of the two OTEC platform configurations, the ship and the spar with detachable modules, as they apply to commercial plants with 400 MW/sub e/ net output. Early examination of potential concept arrangements for the 400 MW/sub e/ plant using 25 or 50 MW/sub e/ power modules revealed that traditional materials and arrangements would not be capable of attaining cost effective designs. Immersing some of the … more

Date: April 1, 1978

Item Type: Report

Partner: UNT Libraries Government Documents Department

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System design package for SIMS Prototype System 4, solar heating and domestic hot water

This report is a collation of documents and drawings that describe a prototype solar heating and hot water system using air type solar energy collection techniques. The system consists of a modular designed prepackaged solar unit containing solar collctors, a rock storage container, blowers, dampers, ducting, air-to-water heat exchanger, DHW preheat tank, piping and system controls. The system was designed to be installed adjacent to a small single family dwelling. The description, performance … more

Date: November 1, 1978

Item Type: Report

Partner: UNT Libraries Government Documents Department

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How to Solve Materials and Design Problems in Solar Heating and Cooling. Energy Technology Review No. 77

A broad range of difficulties encountered in active and passive solar space heating systems and active solar space cooling systems is covered. The problems include design errors, installation mistakes, inadequate durability of materials, unacceptable reliability of components, and wide variations in performance and operation of different solar systems. Feedback from designers and manufacturers involved in the solar market is summarized. The designers' experiences with and criticisms of solar co… more

Date: January 1, 1982

Creator: Ward, D.S.; Oberoi, H.S. & Weinstein, S.D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Theoretical approach for enhanced mass transfer effects in-duct flue gas desulfurization processes

While developing dry sorbent duct injection flue gas desulfurization processes may offer significant improvement in capital cost and process simplicity compared to wet scrubbing systems, the economics of this technology can be improved significantly by an improvement in sorbent utilization. While a general understanding of the mechanism by which the sorbents operate is known, a much more detailed knowledge of reaction rate-controlling phenomena, the role of inherent reactivity, and mass transfe… more

Date: August 22, 1990

Item Type: Report

Partner: UNT Libraries Government Documents Department