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Worledge, D.; Hinchcliffe, G.
Electric Power Research Inst., Palo Alto, CA (United States); Applied Resource Management, Corrales, NM (United States); Electric Power Research Inst., Nondestructive Evaluation Center, Charlotte, NC (United States). Funding organisation: Electric Power Research Inst., Palo Alto, CA (United States)1997
Electric Power Research Inst., Palo Alto, CA (United States); Applied Resource Management, Corrales, NM (United States); Electric Power Research Inst., Nondestructive Evaluation Center, Charlotte, NC (United States). Funding organisation: Electric Power Research Inst., Palo Alto, CA (United States)1997
AbstractAbstract
[en] US nuclear plants are implementing preventive maintenance (PM) tasks with little documented basis beyond fundamental vendor information to support the tasks or their intervals. The Preventive Maintenance Basis project provides utilities with the technical basis for PM tasks and task intervals associated with 40 specific components such as valves, electric motors, pumps, and HVAC equipment. This report provides an overview of the PM Basis project and describes use of the PM Basis database. Volume 21 of the report provides a program of PM tasks suitable for application to HVAC-Air Handling Equipment. The PM tasks that are recommended provide a cost-effective way to intercept the causes and mechanisms that lead to degradation and failure. They can be used, in conjunction with material from other sources, to develop a complete PM program or to improve an existing program. Users of this information will be utility managers, supervisors, craft technicians, and training instructors responsible for developing, optimizing, or fine-tuning PM programs
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Source
Dec 1997; 56 p; Available from EPRI Distribution Center, 207 Coggins Drive, PO Box 23205, Pleasant Hill, CA 94523 (United States)
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AbstractAbstract
[en] Various analyses have been performed recently to estimate the performance of the air conditioning (HVAC) system planned for the Undulator Hall. This reports summarizes the results and provides an upgrade plan to be used if new requirements are needed in the future. The estimates predict that with the planned loads the tunnel air temperature will be well within the allowed tolerance during normal operation.
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7 Dec 2010; 11 p; AC02-76SF00515; Available from http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-tn-10-069.html; PURL: https://www.osti.gov/servlets/purl/1000330-sTkNiA/
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Report
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Sand, J.R.
Oak Ridge National Lab., TN (United States). Funding organisation: US Department of Energy (United States)2001
Oak Ridge National Lab., TN (United States). Funding organisation: US Department of Energy (United States)2001
AbstractAbstract
[en] A draft Method of Test (MOT) has been proposed for packaged, air-to-air, desiccant-based dehumidifier systems that incorporate a thermally-regenerated desiccant material for dehumidification. This MOT is intended to function as the ''system'' testing and rating compliment to the desiccant ''component'' (desiccant wheels and/or cassettes) MOT (ASHRAE 1998) and rating standard (ARI 1998) already adopted by industry. This draft standard applies to ''packaged systems'' that: Use desiccants for dehumidification of conditioned air for buildings; Use heated air for regeneration of the desiccant material; Include fans for moving process and regeneration air; May include other system components for filtering, pre-cooling, post-cooling, or heating conditioned air; and May include other components for humidification of conditioned air. The proposed draft applies to four different system operating modes depending on whether outdoor or indoor air is used for process air and regeneration air streams . Only the ''ventilation'' mode which uses outdoor air for both process and regeneration inlets is evaluated in this paper. Performance of the dehumidification system is presented in terms that would be most familiar and useful to designers of building HVAC systems to facilitate integration of desiccant equipment with more conventional hardware. Parametric performance results from a modified, commercial desiccant dehumidifier undergoing laboratory testing were used as data input to evaluate the draft standard. Performance results calculated from this experimental input, results from an error-checking/heat-balance verification test built into the standard, and estimated comparisons between desiccant and similarly performing conventional dehumidification equipment are calculated and presented. Some variations in test procedures are suggested to aid in analytical assessment of individual component performance
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12 Jul 2001; [vp.]; AC05-00OR22725; Available from Oak Ridge National Lab., TN (US)
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Miscellaneous
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Friedman, Hannah; Piette, Mary Ann
Lawrence Berkeley National Lab., CA (United States). Funding organisation: USDOE Assistant Secretary for Energy Efficiency and Renewable Energy. Office of Building Technology, State and Community Programs. Office of Building Research and Standards (United States)2001
Lawrence Berkeley National Lab., CA (United States). Funding organisation: USDOE Assistant Secretary for Energy Efficiency and Renewable Energy. Office of Building Technology, State and Community Programs. Office of Building Research and Standards (United States)2001
AbstractAbstract
[en] This guide compares emerging diagnostic software tools that aid detection and diagnosis of operational problems for large HVAC systems. We have evaluated six tools for use with energy management control system (EMCS) or other monitoring data. The diagnostic tools summarize relevant performance metrics, display plots for manual analysis, and perform automated diagnostic procedures. Our comparative analysis presents nine summary tables with supporting explanatory text and includes sample diagnostic screens for each tool
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1 May 2001; [vp.]; CD--435; AC03-76SF00098; Available from OSTI as DE00787155
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Report
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Sathyanarayana, K.
Fluor Daniel Hanford, Inc., Richland, WA (United States). Funding organisation: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)1998
Fluor Daniel Hanford, Inc., Richland, WA (United States). Funding organisation: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)1998
AbstractAbstract
[en] Prior to the sluicing of Tank 241-C-106, the 296-P-16 ventilation system will be shutdown and the 296-C-006 ventilation system operation will be initiated. The 296-C-006 system has a low once through flow with an additional recirculation flow in the tank dome space. A minimum dome pressure of -3 in W.G. is necessary for safe operation. An evaluation of the system has been performed. The results of the study show that adequate dome space vacuum can be achieved if the pump pits in Tank 241-C-106 are sealed
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3 Sep 1998; 64 p; CONTRACT AC06-96RL13200; ALSO AVAILABLE FROM OSTI AS DE99050752; NTIS; US GOVT. PRINTING OFFICE DEP
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Report
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Moeckel, R.; Schmitz, G.
Proceedings from the European Applied Research Conference on Natural Gas1999
Proceedings from the European Applied Research Conference on Natural Gas1999
AbstractAbstract
[en] A small-scale directly gas-fired integrated HVAC system is being investigated. The main principle is to use the waste heat of a CHP plant, possibly in conjunction with solar energy, for dehumidification of ambient air. Driving a small-scale absorption chiller is not feasible because of the high waste heat temperature required and the high cost of an absorption chiller. The required cooling capacity of the mechanically / electrically driven compression-type chiller is reduced drastically since no further dehumidification by condensation is necessary. In contrast to Desiccant Cooling Systems no water is required. (author)
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Norges Teknisk-Naturvitenskapelige Universitet, Trondheim (Norway); Selskapet for Industriell og Teknisk Forskning, Trondheim (Norway); Norsk Petroleumsforening, Oslo (Norway); Deutscher Verein des Gas- und Wasserfaches e.V., (DVGW), Karlsruhe (Germany); 438 p; 1999; p. 303-306; Eurogas '99; Bochum (Germany); 25-27 May 1999; Availability - corporative organizations, ie NTNU; SINTEF; NPF; DVDG
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Miscellaneous
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Clifton, F.T.
Fluor Daniel Hanford Inc., Richland, WA (United States). Funding organisation: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)1997
Fluor Daniel Hanford Inc., Richland, WA (United States). Funding organisation: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)1997
AbstractAbstract
[en] This represents a preoperational test report for Vent Building Ventilation Systems, Project W-030. Project W-030 provides a ventilation upgrade for the four Aging Waste Facility tanks. The system provides Heating, Ventilation, and Air Conditioning (HVAC) for the W-030 Ventilation Building. The tests verify correct system operation and correct indications displayed by the central Monitor and Control System
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4 Nov 1997; 306 p; CONTRACT AC06-96RL13200; ALSO AVAILABLE FROM OSTI AS DE99050340; NTIS; US GOVT. PRINTING OFFICE DEP
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Report
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Soltanaghaei, Elahe; Whitehouse, Kamin, E-mail: es3ce@virginia.edu, E-mail: whitehouse@virginia.edu2018
AbstractAbstract
[en] Highlights: • Walkway Sensing as a new principle for using motion sensors to infer occupancy. • It relies on motion sensors to only detect occupancy in the walkways between zones. • Walkway sensing is converted into a reliable form of zone occupancy detection. • The detection model called WalkSense operates in two modes of offline and online. Home automation systems can save a huge amount of energy by detecting home occupancy and sleep patterns to automatically control lights, HVAC, and water heating. However, the ability to achieve these benefits is limited by a lack of sensing technology that can reliably detect zone occupancy states. We present a new concept called Walkway Sensing based on the premise that motion sensors are more reliable in walkways than occupancy zones, such as hallways, foyers, and doorways, because people are always moving and always visible in walkways. We present a methodology for deploying motion sensors and a completely automated algorithm called WalkSense to infer zone occupancy states. WalkSense can operate in both offline (batch) and online (real-time) mode. We implement our system using two types of sensors and evaluate them on 350 days worth of data from 6 houses. Results indicate that WalkSense achieves 96% and 95% average accuracies in offline and online modes, respectively, which translates to over 47% and 30% of reduced energy wastage, and 71% and 30% of reduced comfort issues per day, in comparison to the conventional offline and online approaches.
Primary Subject
Source
S0306261917315829; Available from http://dx.doi.org/10.1016/j.apenergy.2017.11.024; Copyright (c) 2017 Elsevier Ltd. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Danevich, F.A.; Tretyak, V.I.
Natsyional'na Akademyiya Nauk Ukrayini Yinstitut Yadernikh Doslyidzhen', Kyiv (Ukraine)2013
Natsyional'na Akademyiya Nauk Ukrayini Yinstitut Yadernikh Doslyidzhen', Kyiv (Ukraine)2013
AbstractAbstract
[en] The Workshop on results of the Project Kosmomyikrofyizika - (Astroparticle Physics) of the National Academy of Sciences of Ukraine (NASU) 'Astrophysical and cosmological problems of invisible mass and dark energy in the Universe' was held on November 21-22, 2012 in the Institute for Nuclear Research, Kyiv, Ukraine. This Project was carried out during three years (2010-2012) by scientists from various Universities and Institutes of the NASU; it was a logical continuation of the previous scientific program of the NASU 'Researches of structure and composition of the Universe, hidden mass and dark energy (Kosmomyikrofyizika-2) in 2007-2009. These programs were devoted to theoretical and experimental investigation in astronomy, astrophysics, cosmology, physics of atomic nuclei and particle physics, which are related with the problems of dark matter and dark energy in the Universe
Original Title
Materyiali naradi za rezul'tatami vikonannya tsyil'ovoyi kompleksnoyi programi fundamental'nikh doslyidzhen'Natsyional'noyi Akademyiyi Nauk Ukrayini - 'Kosmomyikrofyizika-2'
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2013; 96 p; KOPYi TsETR, Kyiv; Kyiv (Ukraine); Astrophysical and cosmological problems of invisible mass and dark energy in the Universe (Cosmomicrophysics-2); Astrofyizichnyi yi kosmologyichnyi problemi prikhovanoyi masi yi temnoyi energyiyi Vsesvyitu (Kosmomyikrofyizika-2); Kyiv (Ukraine); 21-22 Nov 2012; Available from Ukrainian INIS Center
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AbstractAbstract
[en] The paper gives the general introduction of the contents and requirements of the safety analysis of HVAC systems designed in nuclear power plant. A typical ESF HVAC system is referenced as an example to show the main items in the safety analysis report reviewing of HVAC systems in Generation Ⅱ-Modified NPPs. (authors)
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5 refs.
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Journal Article
Journal
Nuclear Safety (Beijing); ISSN 1672-5360;
; (1); p. 19-21

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