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1

Toshifumi Hotchi  

NLE Websites -- All DOE Office Websites (Extended Search)

Melissa M. Lunden, Anna G. Mirer, Michael Spears, and Douglas P. Sullivan. Natural Gas Variability in California: Environmental Impacts and Device Performance - Experimental...

2

Toshifumi Hotchi  

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photocatalytic oxidation (UVPCO) air cleaners In Indoor Air 2008. Copenhagen, Denmark: Indoor Air, Paper ID: 297, 2008. Download: Apte, Michael G., Norman Bourassa, David...

3

William Delp  

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Portrait of Woody Delp Portrait of Woody Delp William Delp Indoor Environment Group Lawrence Berkeley National Laboratory 1 Cyclotron Road MS 90-3058 Berkeley CA 94720 Office Location: 90-3030 (510) 486-5864 WWDelp@lbl.gov Woody Delp received a Ph.D. in mechanical engineering from the University of Missouri Rolla in 1995. His graduate work involved modeling how much ventilation (outside air) comes into variable air volume (VAV) systems as they operate across a range of climates and seasons. Woody grew up in Rolla working in a family-owned HVAC contracting business. In his dad's business he worked in every capacity, from service calls at a young age, to designing and installing complex systems for local laboratories. HVAC is very much in his blood. Woody has been at LBNL since 1995 and has worked in various project areas

4

Publications  

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R., Tracy L. Thatcher, Richard G. Sextro, William W. Delp, Sheng-Chieh Chang, Emily E. Wood, Jean C. Deputy, Toshifumi Hotchi, M. R. Sippola, and Douglas P. Sullivan. Joint Urban...

5

Publications  

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Filters 2004 Singer, Brett C., Alfred T. Hodgson, Toshifumi Hotchi, and J. J. Kim. "Passive measurement of nitrogen oxides to assess traffic-related pollutant exposure for the...

6

Publications  

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M. Logue, Toshifumi Hotchi, Brett C. Singer, and Max H. Sherman. Experiments to Evaluate and Implement Passive Tracer Gas Methods to Measure Ventilation Rates in Homes., 2012...

7

Publications  

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C., Alfred T. Hodgson, Toshifumi Hotchi, Katherine Y. Ming, Richard G. Sextro, Emily E. Wood, and Nancy J. Brown. "Sorption of organic gases in residential rooms." Atmospheric...

8

Publications  

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2 results: 2 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Marion L. Russell [Clear All Filters] 2013 Mullen, Nasim A., Marion L. Russell, Melissa M. Lunden, and Brett C. Singer. "Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers." Atmospheric Environment 80 (2013): 184-189. Noris, Federico, Gary Adamkiewicz, William W. Delp, Toshifumi Hotchi, Marion L. Russell, Brett C. Singer, Michael Spears, Kimberly Vermeer, and William J. Fisk. "Indoor environmental quality benefits of apartment energy retrofits." Building Environment 68 (2013): 170-178. Maddalena, Randy L., Amanda Parra, Marion L. Russell, and Wen-Yee Lee. Measurement of Passive Uptake Rates for Volatile Organic Compounds on

9

TY JOUR  

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Indoor environmental quality benefits of apartment energy retrofits Indoor environmental quality benefits of apartment energy retrofits JF Building Environment A1 Federico Noris A1 Gary Adamkiewicz A1 William W Delp A1 Toshifumi Hotchi A1 Marion L Russell A1 Brett C Singer A1 Michael Spears A1 Kimberly Vermeer A1 William J Fisk KW Apartments Energy Indoor environmental quality Retrofit Selection AB p span style color e2e2e font family Arial Unicode MS Arial Unicode Arial URW Gothic L Helvetica Tahoma sans serif font size px font style normal font variant normal font weight letter spacing normal line height px orphans auto text align justify text indent px text transform none white space normal widows auto word spacing px webkit text size adjust auto webkit text stroke width px background color ffffff display inline

10

Publications  

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6 results: 6 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Sheng-Chieh Chang [Clear All Filters] 2008 Galitsky, Christina, Sheng-Chieh Chang, Ernst Worrell, and Eric R. Masanet. Energy Efficiency Improvement and Cost Saving Opportunities for the Pharmaceutical Industry.. LBNL, 2008. 2006 Galitsky, Christina, Sheng-Chieh Chang, Ernst Worrell, and Eric R. Masanet. Improving Energy Efficiency in Pharmaceutical Manufacturing Operations., 2006. 2004 Price, Phillip N., Sheng-Chieh Chang, and Michael D. Sohn. Characterizing buildings for airflow models: What should we measure?. Lawrence Berkeley National Laboratory, 2004. Black, Douglas R., Tracy L. Thatcher, Richard G. Sextro, William W. Delp, Sheng-Chieh Chang, Emily E. Wood, Jean C. Deputy, Toshifumi Hotchi, M. R.

11

Marion Russell  

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Marion L Russell Marion L Russell Marion Russell Indoor Environment Group Lawrence Berkeley National Laboratory 1 Cyclotron Road MS 70-108B Berkeley CA 94720 Office Location: 70-0222 (510) 495-2915 MLRussell@lbl.gov This publications database is an ongoing project, and not all Division publications are represented here yet. Publications 2013 Noris, Federico, Gary Adamkiewicz, William W. Delp, Toshifumi Hotchi, Marion L. Russell, Brett C. Singer, Michael Spears, Kimberly Vermeer, and William J. Fisk. "Indoor environmental quality benefits of apartment energy retrofits." Building Environment 68 (2013): 170-178. Download: PDF (2.56 MB) Mullen, Nasim A., Marion L. Russell, Melissa M. Lunden, and Brett C. Singer. "Investigation of formaldehyde and acetaldehyde sampling rate and

12

Michael Spears  

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Spears Spears Indoor Environment Group Lawrence Berkeley National Laboratory 1 Cyclotron Road MS 90-3058 Berkeley CA 94720 Office Location: 90-3029J (510) 486-7044 MSpears@lbl.gov This publications database is an ongoing project, and not all Division publications are represented here yet. Publications 2013 Mendell, Mark J., Ekaterina Eliseeva, Morris G. Davies, Michael Spears, Agnes B. Lobscheid, William J. Fisk, and Michael G. Apte. "Association of Classroom Ventilation with Reduced Illness Absence: A Prospective Study in California Elementary Schools." Indoor Air (2013). Download: PDF (1.57 MB) Noris, Federico, Gary Adamkiewicz, William W. Delp, Toshifumi Hotchi, Marion L. Russell, Brett C. Singer, Michael Spears, Kimberly Vermeer, and William J. Fisk. "Indoor environmental quality benefits of apartment energy

13

Publications  

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9 results: 9 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Sippola, M.R. [Clear All Filters] 2005 Sippola, M. R., and William W. Nazaroff. "Particle Deposition in Ventilation Ducts: Connectors, Bends and Developing Flow." Aerosol Science and Technology 39 (2005): 139-150. 2004 Black, Douglas R., Tracy L. Thatcher, Richard G. Sextro, William W. Delp, Sheng-Chieh Chang, Emily E. Wood, Jean C. Deputy, Toshifumi Hotchi, M. R. Sippola, and Douglas P. Sullivan. Joint Urban 2003: Indoor Measurements Final Data Report. Lawrence Berkeley National Laboratory, 2004. 2003 Sippola, M. R., and William W. Nazaroff. "Experiments Measuring Particle Deposition from Fully Developed Turbulent Flow in Ventilation Ducts." Aerosol Science and Technology 38 (2003): 914-925.

14

Indoor environmental quality benefits of apartment energy retrofits  

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Indoor environmental quality benefits of apartment energy retrofits Indoor environmental quality benefits of apartment energy retrofits Title Indoor environmental quality benefits of apartment energy retrofits Publication Type Journal Article LBNL Report Number LBNL-6373E Year of Publication 2013 Authors Noris, Federico, Gary Adamkiewicz, William W. Delp, Toshifumi Hotchi, Marion L. Russell, Brett C. Singer, Michael Spears, Kimberly Vermeer, and William J. Fisk Journal Building Environment Volume 68 Pagination 170-178 Date Published 10/2013 Keywords Apartments; Energy; Indoor environmental quality; Retrofit; Selection Abstract Sixteen apartments serving low-income populations in three buildings were retrofit with the goal of simultaneously reducing energy consumption and improving indoor environmental quality (IEQ). Retrofit measures varied among apartments and included, among others, envelope sealing, installation of continuous mechanical ventilation systems, upgrading bathroom fans and range hoods, attic insulation, replacement of heating and cooling systems, and adding wall-mounted particle air cleaners. IEQ parameters were measured, generally for two one-week periods before and after the retrofits. The measurements indicate an overall improvement in IEQ conditions after the retrofits. Comfort conditions, bathroom humidity, and concentrations of carbon dioxide, acetaldehyde, volatile organic compounds, and particles generally improved. Formaldehyde and nitrogen dioxide levels decreased in the building with the highest concentrations, were unchanged in a second building, and increased in a third building. IEQ parameters other than particles improved more in apartments with continuous mechanical ventilation systems installed. In general, but not consistently, larger percent increases in air exchange rates were associated with larger percent decreases in indoor levels of the pollutants that primarily come from indoor sources.

15

Passive Tracer Gas Methods to Measure  

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Experiments to Evaluate and Implement Experiments to Evaluate and Implement Passive Tracer Gas Methods to Measure Ventilation Rates in Homes Melissa Lunden, David Faulkner, Elizabeth Heredia, Sebastian Cohn, Darryl Dickerhoff, Federico Noris, Jennifer Logue, Toshifumi Hotchi, Brett Singer and Max H. Sherman Environmental Energy Technologies Division October 2012 LBNL-5984E 2 Disclaimer: This document was prepared as an account of work sponsored by the United States

16

Kitchen Ventilation Should be High Performance (Not Optional)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Kitchen Ventilation Kitchen Ventilation Should be High Performance (not Optional) Brett C. Singer Residential Building Systems & Indoor Environment Groups Lawrence Berkeley National Laboratory Building America Technical Update Denver, CO April 30, 2013 Acknowledgements PROGRAM SUPPORT *U.S. Department of Energy - Building America Program *U.S. Environmental Protection Agency - Indoor Environments Division *U.S. Department of Housing and Urban Development - Office of Healthy Homes & Lead Hazard Control *California Energy Commission - Public Interest Energy Research Program TECHNICAL CONTRIBUTIONS *Woody Delp, Tosh Hotchi, Melissa Lunden, Nasim Mullen, Chris Stratton, Doug Sullivan, Iain Walker Kitchen Ventilation Simplified PROBLEM: * Cooking burners & cooking produce odors, moisture

17

Publications  

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83 results: 83 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Alfred T. Hodgson [Clear All Filters] 2013 Maddalena, Randy L., Na Li, Alfred T. Hodgson, Francis J. Offermann, and Brett C. Singer. "Maximizing Information from Residential Measurements of Volatile Organic Compounds." In Healthy Buildings 2012 - 10th International Conference. Brisbane, Australia, 2013. 2008 Hodgson, Alfred T., Hugo Destaillats, Toshifumi Hotchi, and William J. Fisk. Benefits and technological challenges in the implementation of TiO2-based ultraviolet photocatalytic oxidation (UVPCO) air cleaners In Indoor Air 2008. Copenhagen, Denmark: Indoor Air, Paper ID: 297, 2008. Maddalena, Randy L., Hugo Destaillats, Marion L. Russell, Alfred T. Hodgson, and Thomas E. McKone. "Indoor pollutants emitted by electronic

18

Is CO2 an Indoor Pollutant? Direct Effects of Low-to-Moderate CO2  

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Is CO2 an Indoor Pollutant? Direct Effects of Low-to-Moderate CO2 Is CO2 an Indoor Pollutant? Direct Effects of Low-to-Moderate CO2 Concentrations on Human Decision-Making Performance Title Is CO2 an Indoor Pollutant? Direct Effects of Low-to-Moderate CO2 Concentrations on Human Decision-Making Performance Publication Type Journal Article Refereed Designation Refereed LBNL Report Number LBNL-6196E Year of Publication 2012 Authors Satish, Usha, Mark J. Mendell, Krishnamurthy Shekhar, Toshifumi Hotchi, Douglas P. Sullivan, Siegfried Streufert, and William J. Fisk Journal Environmental Health Perspectives Volume 120 Issue 12 Pagination 1671-1677 Date Published 09/20/2012 Keywords carbon dioxide, cognition, Decision Making, human performance, indoor environmental quality, ventilation Abstract Background - Associations of higher indoor carbon dioxide (CO2) concentrations with impaired

19

Publications  

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62 results: 62 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Mark J. Mendell [Clear All Filters] 2013 Fisk, William J., Usha Satish, Mark J. Mendell, Toshifumi Hotchi, and Douglas P. Sullivan. "Is CO2 an Indoor Pollutant? Higher Levels of CO2 May Diminish Decision Making Performance." ASHRAE Journal 55, no. 3 (2013): 84-85. Mendell, Mark J., Ekaterina Eliseeva, Morris G. Davies, Michael Spears, Agnes B. Lobscheid, William J. Fisk, and Michael G. Apte. "Association of Classroom Ventilation with Reduced Illness Absence: A Prospective Study in California Elementary Schools." Indoor Air (2013). Fisk, William J., Mark J. Mendell, Molly Davies, Ekaterina Eliseeva, David Faulkner, Tienzen Hong, and Douglas P. Sullivan. Demand Controlled

20

Benefits and technological challenges in the implementation of TiO2-based  

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Benefits and technological challenges in the implementation of TiO2-based Benefits and technological challenges in the implementation of TiO2-based ultraviolet photocatalytic oxidation (UVPCO) air cleaners Title Benefits and technological challenges in the implementation of TiO2-based ultraviolet photocatalytic oxidation (UVPCO) air cleaners Publication Type Conference Proceedings Year of Publication 2008 Authors Hodgson, Alfred T., Hugo Destaillats, Toshifumi Hotchi, and William J. Fisk Conference Name Indoor Air 2008 Pagination 17-22 Date Published August 2008 Publisher Indoor Air, Paper ID: 297 Conference Location Copenhagen, Denmark Abstract Indoor air cleaners based on TiO2 photocatalytic oxidation of organic pollutants are a promising technology to improve or maintain indoor air quality while reducing ventilation energy costs. We evaluated the performance of a pilot scale UVPCO air cleaner under realistic conditions in single pass and recirculation modes

Note: This page contains sample records for the topic "delp toshifumi hotchi" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

6 results: 6 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Donald Lucas [Clear All Filters] 2012 Holder, Amara L., Brietta J. Carter, Regine Goth-Goldstein, Donald Lucas, and Catherine P. Koshland. "Increased Cytotoxicity of Oxidized Flame Soot." Atmospheric Pollution Research 3, no. 1 (2012): 25-31. 2009 Keenan, Christina R., Regine Goth-Goldstein, Donald Lucas, and David L. Sedlak. "Oxidative Stress Induced by Zero-Valent Iron Nanoparticles and Fe(II) in Human Bronchial Epithelial Cells." Environmental Science & Technology 43, no. 12 (2009): 4555-4560. Singer, Brett C., Michael G. Apte, Douglas R. Black, Toshifumi Hotchi, Donald Lucas, Melissa M. Lunden, Anna G. Mirer, Michael Spears, and Douglas P. Sullivan. Natural Gas Variability in California: Environmental Impacts

22

Publications  

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9 results: 9 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Emily E. Wood [Clear All Filters] 2007 Singer, Brett C., Alfred T. Hodgson, Toshifumi Hotchi, Katherine Y. Ming, Richard G. Sextro, Emily E. Wood, and Nancy J. Brown. "Sorption of organic gases in residential rooms." Atmospheric Environment 41 (2007): 3251-3265. 2006 Jayaraman, Buvaneswari, Elizabeth U. Finlayson, Michael D. Sohn, Tracy L. Thatcher, Phillip N. Price, Emily E. Wood, Richard G. Sextro, and Ashok J. Gadgil. "Tracer Gas Transport under Mixed Convection Conditions in an Experimental Atrium: Comparison Between Experiments and CFD Predictions." Atmospheric Environment 40 (2006): 5236-5250. 2005 Jayaraman, Buvaneswari, Elizabeth U. Finlayson, Emily E. Wood, Tracy L.

23

Publications  

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results: results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Satish Kumar [Clear All Filters] 2006 Sathaye, Jayant A., Lynn K. Price, Satish Kumar, Stephane Rue de la du Can, Corina Warfield, and Srinivasan Padmanabhan. Conference Paper Partnerships for Clean Development and Climate: Business and Technology Cooperation Benefits., 2006. Sathaye, Jayant A., Stephane Rue de la du Can, Satish Kumar, Maithili Iyer, Christina Galitsky, Amol Phadke, Michael A. McNeil, Lynn K. Price, Ranjit Bharvirkar, and Srinivasan Padmanabhan. Implementing End-use Efficiency Improvements in India: Drawing from Experience in the US and Other Countries. USAID|INDIA, 2006. 2002 Apte, Michael G., Alfred T. Hodgson, Derek G. Shendell, Dennis L. DiBartolomeo, Toshifumi Hotchi, Satish Kumar, Seung-Min Lee, Shawna M.

24

Natural Gas Variability in California: Environmental Impacts and Device  

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Natural Gas Variability in California: Environmental Impacts and Device Natural Gas Variability in California: Environmental Impacts and Device Performance - Experimental Evaluation of Pollutant Emissions from Residential Appliances Title Natural Gas Variability in California: Environmental Impacts and Device Performance - Experimental Evaluation of Pollutant Emissions from Residential Appliances Publication Type Report LBNL Report Number LBNL-2897E Year of Publication 2009 Authors Singer, Brett C., Michael G. Apte, Douglas R. Black, Toshifumi Hotchi, Donald Lucas, Melissa M. Lunden, Anna G. Mirer, Michael Spears, and Douglas P. Sullivan Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords carbon monoxide, dioxide, energy performance of buildings group, formaldehyde, indoor air quality, indoor airflow and pollutant transport, indoor environment department, liquefied natural gas, nitrogen, nitrogen oxides, particle number, pollutant exposures, ultrafine particles

25

Evaluation of a Combined Ultraviolet Photocatalytic Oxidation (UVPCO) /  

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Evaluation of a Combined Ultraviolet Photocatalytic Oxidation (UVPCO) / Evaluation of a Combined Ultraviolet Photocatalytic Oxidation (UVPCO) / Chemisorbent Air Cleaner for Indoor Air Applications Title Evaluation of a Combined Ultraviolet Photocatalytic Oxidation (UVPCO) / Chemisorbent Air Cleaner for Indoor Air Applications Publication Type Report LBNL Report Number LBNL-62202 Year of Publication 2007 Authors Hodgson, Alfred T., Hugo Destaillats, Toshifumi Hotchi, and William J. Fisk Report Number LBNL-62202 Abstract We previously reported that gas-phase byproducts of incomplete oxidation were generated when a prototype ultraviolet photocatalytic oxidation (UVPCO) air cleaner was operated in the laboratory with indoor-relevant mixtures of VOCs at realistic concentrations. Under these conditions, there was net production of formaldehyde and acetaldehyde, two important indoor air toxicants. Here, we further explore the issue of byproduct generation. Using the same UVPCO air cleaner, we conducted experiments to identify common VOCs that lead to the production of formaldehyde and acetaldehyde and to quantify their production rates. We sought to reduce the production of formaldehyde and acetaldehyde to acceptable levels by employing different chemisorbent scrubbers downstream of the UVPCO device. Additionally, we made preliminary measurements to estimate the capacity and expected lifetime of the chemisorbent media. For most experiments, the system was operated at 680 - 780 m3/h (400 - 460 cfm).

26

Sorption of organic gases in residential bedrooms and bathrooms  

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Sorption of organic gases in residential bedrooms and bathrooms Sorption of organic gases in residential bedrooms and bathrooms Title Sorption of organic gases in residential bedrooms and bathrooms Publication Type Conference Paper LBNL Report Number LBNL-56787 Year of Publication 2005 Authors Singer, Brett C., Alfred T. Hodgson, Toshifumi Hotchi, Katherine Y. Ming, Richard G. Sextro, Emily E. Wood, and Nancy J. Brown Conference Name Proceedings of the 10th International Conference on Indoor Air Quality and Climate - Indoor Air 2005 Volume 2(9) Publisher Tsinghua University Press Conference Location Beijing, China Abstract Experiments were conducted to characterize organic gas sorption in residential bedrooms (n=4), bathrooms (n=2), and a furnished test chamber. Rooms were studied "as-is" with material surfaces and furnishings unaltered. Surface materials were characterized and areas quantified. Experiments included rapid volatilization of a volatile organic compound (VOC) mixture with the room closed and sealed for a 5-h Adsorb phase, followed by 30-min Flush and 2-h closed-room Desorb phases. The mixture included n-alkanes, aromatics, glycol ethers, 2-ethyl-1-hexanol, dichlorobenzene, and organophosphorus compounds. Measured gas-phase concentrations were fit to three variations of a mathematical model that considers sorption occurring at one surface sink and one potential embedded sink. The 2-parameter sink model tracked measurements for most compounds, but improved fits were obtained for some VOCs with a 3-parameter sink-diffusion or a 4-parameter two-sink model. Sorptive partitioning and initial adsorption rates increased with decreasing vapour pressure within each chemical class.

27

Simultaneous Energy Savings and IEQ Improvements in Relocatable Classrooms  

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Simultaneous Energy Savings and IEQ Improvements in Relocatable Classrooms Simultaneous Energy Savings and IEQ Improvements in Relocatable Classrooms Title Simultaneous Energy Savings and IEQ Improvements in Relocatable Classrooms Publication Type Report LBNL Report Number LBNL-52690 Year of Publication 2003 Authors Apte, Michael G., Dennis L. DiBartolomeo, Toshifumi Hotchi, Alfred T. Hodgson, Seung-Min Lee, Shawna M. Liff, Leo I. Rainer, Derek G. Shendell, Douglas P. Sullivan, and William J. Fisk Pagination 13 Date Published 06/2003 Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Relocatable classrooms (RCs) are commonly used by school districts with changing demographics and enrollment sizes. We designed and constructed four energy-efficient RCs for this study to demonstrate technologies with the potential to simultaneously improve energy efficiency and indoor environmental quality (IEQ). Two were installed at each of two school districts, and energy use and IEQ parameters were monitored during occupancy. Two RCs (one per school) were finished with materials selected for reduced emissions of toxic and odorous volatile organic compounds (VOCs). Each had two HVAC systems, operated on alternate weeks, consisting of a standard heat-pump system and an indirect-direct evaporative cooling (IDEC) system with gas-fired hydronic heating. The IDEC system provides continuous outside air ventilation at "15 CFM (7.5 L s-1) person-1, efficient particle filtration while using significantly less energy for cooling. School year long measurements included: carbon dioxide (CO2), particles, VOCs, temperature, humidity, thermal comfort, noise, meteorology, and energy use. IEQ monitoring results indicate that important ventilation-relevant indoor CO2 and health-relevant VOC concentration reductions were achieved while average cooling and heating energy costs were simultaneously reduced by 50% and 30%, respectively.

28

Indoor Air Quality Impacts of a Peak Load Shedding Strategy for a Large  

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Indoor Air Quality Impacts of a Peak Load Shedding Strategy for a Large Indoor Air Quality Impacts of a Peak Load Shedding Strategy for a Large Retail Building Title Indoor Air Quality Impacts of a Peak Load Shedding Strategy for a Large Retail Building Publication Type Report LBNL Report Number LBNL-59293 Year of Publication 2006 Authors Hotchi, Toshifumi, Alfred T. Hodgson, and William J. Fisk Keywords market sectors, technologies Abstract Mock Critical Peak Pricing (CPP) events were implemented in a Target retail store in the San Francisco Bay Area by shutting down some of the building's packaged rooftop air-handling units (RTUs). Measurements were made to determine how this load shedding strategy would affect the outdoor air ventilation rate and the concentrations of volatile organic compounds (VOCs) in the sales area. Ventilation rates prior to and during load shedding were measured by tracer gas decay on two days. Samples for individual VOCs, including formaldehyde and acetaldehyde, were collected from several RTUs in the morning prior to load shedding and in the late afternoon. Shutting down a portion (three of 11 and five of 12, or 27 and 42%) of the RTUs serving the sales area resulted in about a 30% reduction in ventilation, producing values of 0.50-0.65 air changes per hour. VOCs with the highest concentrations (>10 μg/m3) in the sales area included formaldehyde, 2-butoxyethanol, toluene and decamethylcyclopentasiloxane. Substantial differences in concentrations were observed among RTUs. Concentrations of most VOCs increased during a single mock CPP event, and the median increase was somewhat higher than the fractional decrease in the ventilation rate. There are few guidelines for evaluating indoor VOC concentrations. For formaldehyde, maximum concentrations measured in the store during the event were below guidelines intended to protect the general public from acute health risks.

29

Sorption of organic gases in residential rooms  

NLE Websites -- All DOE Office Websites (Extended Search)

residential rooms residential rooms Title Sorption of organic gases in residential rooms Publication Type Journal Article LBNL Report Number LBNL-59303 Year of Publication 2007 Authors Singer, Brett C., Alfred T. Hodgson, Toshifumi Hotchi, Katherine Y. Ming, Richard G. Sextro, Emily E. Wood, and Nancy J. Brown Journal Atmospheric Environment Volume 41 Start Page Chapter Pagination 3251-3265 Keywords adsorption, hazardous air pollutants, nerve agents, sink effect, volatile organic compounds Abstract Experiments were conducted to characterize organic gas sorption in residential rooms studied ''as-is'' with furnishings and material surfaces unaltered and in a furnished chamber designed to simulate a residential room. Results are presented for 10 rooms (five bedrooms, two bathrooms, a home office, and two multi-function spaces) and the chamber. Exposed materials were characterized and areas quantified. A mixture of volatile organic compounds (VOCs) was rapidly volatilized within each room as it was closed and sealed for a 5-h Adsorb phase; this was followed by 30-min Flush and 2-h closed-room Desorb phases. Included were alkane, aromatic, and oxygenated VOCs representing a range of ambient and indoor air pollutants. Three organophosphorus compounds served as surrogates for Sarin-like nerve agents. Measured gas-phase concentrations were fit to three variations of a mathematical model that considers sorption occurring at a surface sink and potentially a second, embedded sink. The 3-parameter sink-diffusion model provided acceptable fits for most compounds and the 4-parameter two-sink model provided acceptable fits for the others. Initial adsorption rates and sorptive partitioning increased with decreasing vapor pressure for the alkanes, aromatics and oxygenated VOCs. Best-fit sorption parameters obtained from experimental data from the chamber produced best-fit sorption parameters similar to those obtained from the residential rooms

30

Sorption of organic gases in a furnished room  

NLE Websites -- All DOE Office Websites (Extended Search)

a furnished room a furnished room Title Sorption of organic gases in a furnished room Publication Type Journal Article LBNL Report Number LBNL-53943 Year of Publication 2004 Authors Singer, Brett C., Kenneth L. Revzan, Toshifumi Hotchi, Alfred T. Hodgson, and Nancy J. Brown Journal Atmospheric Environment Volume 38 Start Page Chapter Issue 16 Pagination 2483-2494 Abstract We present experimental data and semi-empirical models describing the sorption of organic gases in a simulated indoor residential environment. Two replicate experiments were conducted with 20 volatile organic compounds (VOCs) in a 50-m3 room finished with painted wallboard, carpet and cushion, draperies and furnishings. The VOCs span a wide volatility range and include ten Hazardous Air Pollutants. VOCs were introduced to the static chamber as a pulse and their gas-phase concentrations were measured during a net adsorption period and a subsequent net desorption period. Three sorption models were fit to the measured concentrations for each compound to determine the simplest formulation needed to adequately describe the observed behavior. Sorption parameter values were determined by fitting the models to adsorption period data then checked by comparing measured and predicted behavior during desorption. The adequacy of each model was evaluated using a goodness of fit parameter calculated for each period. Results indicate that sorption usually does not greatly affect indoor concentrations of methyl-tert-butyl ether, 2-butanone, isoprene and benzene. In contrast, sorption appears to be a relevant indoor process for many of the VOCs studied, including C8-C10 aromatic hydrocarbons (HC), terpenes, and pyridine. These compounds sorbed at rates close to typical residential air change rates and exhibited substantial sorptive partitioning at equilibrium. Polycyclic aromatic HCs, aromatic alcohols, ethenylpyridine and nicotine initially adsorbed to surfaces at rates of 1.5 to >6 h-1 and partitioned 95 to >99% in the sorbed phase at equilibrium

31

Indoor Air Quality Impacts of a Peak Load Shedding Strategy for a Large  

NLE Websites -- All DOE Office Websites (Extended Search)

Indoor Air Quality Impacts of a Peak Load Shedding Strategy for a Large Indoor Air Quality Impacts of a Peak Load Shedding Strategy for a Large Retail Building Title Indoor Air Quality Impacts of a Peak Load Shedding Strategy for a Large Retail Building Publication Type Report Year of Publication 2006 Authors Hotchi, Toshifumi, Alfred T. Hodgson, and William J. Fisk Publisher Lawrence Berkeley National Laboratory Abstract Mock Critical Peak Pricing (CPP) events were implemented in a Target retail store in the San Francisco Bay Area by shutting down some of the building's packaged rooftop air-handling units (RTUs). Measurements were made to determine how this load shedding strategy would affect the outdoor air ventilation rate and the concentrations of volatile organic compounds (VOCs) in the sales area. Ventilation rates prior to and during load shedding were measured by tracer gas decay on two days. Samples for individual VOCs, including formaldehyde and acetaldehyde, were collected from several RTUs in the morning prior to load shedding and in the late afternoon. Shutting down a portion (three of 11 and five of 12, or 27 and 42%) of the RTUs serving the sales area resulted in about a 30% reduction in ventilation, producing values of 0.50-0.65 air changes per hour. VOCs with the highest concentrations (>10 μg/m3) in the sales area included formaldehyde, 2-butoxyethanol, toluene and decamethylcyclopentasiloxane. Substantial differences in concentrations were observed among RTUs. Concentrations of most VOCs increased during a single mock CPP event, and the median increase was somewhat higher than the fractional decrease in the ventilation rate. There are few guidelines for evaluating indoor VOC concentrations. For formaldehyde, maximum concentrations measured in the store during the event were below guidelines intended to protect the general public from acute health risks

32

Shamanth Kumar Fred Morstatter  

E-Print Network (OSTI)

is the subject of an interesting article by Chris Delp, Cin-young Lee, Chelsea Dutenhoffer, and Roli Gostelow

33

Guidelines for residential commissioning  

E-Print Network (OSTI)

Potential Benefits of Commissioning California Homes.Delp. 2000. Residential Commissioning: A Review of Relatedfor Evaluating Residential Commissioning Metrics Lawrence

Wray, Craig P.; Walker, Iain S.; Sherman, Max H.

2003-01-01T23:59:59.000Z

34

Final methodology for a field study of indoor environmental quality and  

NLE Websites -- All DOE Office Websites (Extended Search)

Final methodology for a field study of indoor environmental quality and Final methodology for a field study of indoor environmental quality and energy efficiency in new relocatable classrooms in Northern California Title Final methodology for a field study of indoor environmental quality and energy efficiency in new relocatable classrooms in Northern California Publication Type Report LBNL Report Number LBNL-51101 Year of Publication 2002 Authors Shendell, Derek G., Dennis L. DiBartolomeo, William J. Fisk, Alfred T. Hodgson, Toshifumi Hotchi, Seung-Min Lee, Douglas P. Sullivan, Michael G. Apte, and Leo I. Rainer Abstract The prevalence of relocatable classrooms (RCs) at schools is rising due to federal and state initiatives to reduce K-3 class size, and limited capital resources. Concerns regarding inadequate ventilation and indoor air and environmental quality (IEQ) in RCs have been raised. Adequate ventilation is an important link between improved IEQ and energy efficiency for schools. Since students and teachers spend the majority of a 7-8 hour school day inside classrooms, indoor contaminant concentrations are assumed to drive personal school-day exposures. We conducted a demonstration project in new relocatable classrooms (RCs) during the 2001-02 school year to address these issues. Four new 24' x 40' (960 ft2) RCs were constructed and sited in pairs at an elementary school campus in each of two participant school districts (SD) in Northern California. Each RC was equipped with two heating, ventilation, and air conditioning (HVAC) systems, one per module. The two HVAC systems were a standard heat pump with intermittent 25-50% outdoor air ventilation and an energy-efficient advanced system, based on indirect-direct evaporative cooling with an integrated natural gas-fired hydronic heating loop and improved particle filtration, providing continuous 100% outdoor air ventilation at = 15 ft3 min-1 occupant-1. Alternate carpets, wall panels, and ceiling panels were installed in two classrooms - one in each pair - based on the results of a laboratory study of VOC emissions from standard and alternate materials. Numerous IEQ and outdoor air quality and meteorological parameters were measured either continuously over the school year or as integrated school day samples during the fall cooling and winter heating seasons. Details of the RC designs, the field monitoring methodology including handling, storage, transport and management of chemical samples and data, and analyses to be conducted are presented

35

Document (0k)  

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Delp, Hashem Akbari, Scott Smaby, Ronnen Levinson, and Bret Gean. Building integrated photovoltaic (BIPV) roofs for sustainability and energy efficiency. Naval Facilities...

36

Publications  

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Delp, Hashem Akbari, Scott Smaby, Ronnen Levinson, and Bret Gean. Building integrated photovoltaic (BIPV) roofs for sustainability and energy efficiency. Naval Facilities...

37

Publications  

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Renewable Energy: Policy & Programs Clear All Filters 2013 Ly, Peter, George Ban-Weiss, Nathan Finch, Craig Wray, Mark de Ogburn, Woody Delp, Hashem Akbari, Scott Smaby,...

38

George Ban-Weiss  

NLE Websites -- All DOE Office Websites (Extended Search)

W. Delp, Peter Ly, Hashem Akbari, and Ronnen M. Levinson. "Electricity production and cooling energy savings from installation of a building-integrated photovoltaic roof on an...

39

Craig Wray  

NLE Websites -- All DOE Office Websites (Extended Search)

W. Delp, Peter Ly, Hashem Akbari, and Ronnen M. Levinson. "Electricity production and cooling energy savings from installation of a building-integrated photovoltaic roof on an...

40

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

Driscoll, Jennifer A. McWilliams, Tengfang T. Xu, and William W. Delp. Residential Commissioning: A Review of Related Literature., 2000. 1998 Siminovitch, Michael J., Erik Page,...

Note: This page contains sample records for the topic "delp toshifumi hotchi" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Usage Clear All Filters 2013 Ly, Peter, George Ban-Weiss, Nathan Finch, Craig Wray, Mark de Ogburn, Woody Delp, Hashem Akbari, Scott Smaby, Ronnen Levinson, and Bret Gean....

42

TY RPRT  

NLE Websites -- All DOE Office Websites (Extended Search)

Building integrated photovoltaic BIPV roofs for sustainability and energy efficiency A1 Peter Ly A1 George Ban Weiss A1 Finch Nathan A1 Wray Craig A1 de Ogburn Mark A1 Delp Woody...

43

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

Building Environment 68 (2013): 170-178. Ly, Peter, George Ban-Weiss, Nathan Finch, Craig Wray, Mark de Ogburn, William W. Delp, Hashem Akbari, Scott Smaby, Ronnen Levinson,...

44

ELLIPSCMETRY OF ANODIC FILM GROWTH  

E-Print Network (OSTI)

A/SQCMl .60J .6JJ .6J() VOLTS Dfl PS 60.36C 61.16J DElPS Sl I I~A/ SQCi''ll VOLTS DEl 55 .z:. 0 DEL PSI 4l.9:JO H.Stagnant Electrolyte, 0.55 volts vs ~g/ HgO (Exp. Ag 80-13)

Smith, Craig Gordon

2011-01-01T23:59:59.000Z

45

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

8 results: 8 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is George Ban-Weiss [Clear All Filters] 2013 Ly, Peter, George Ban-Weiss, Nathan Finch, Craig Wray, Mark de Ogburn, William W. Delp, Hashem Akbari, Scott Smaby, Ronnen Levinson, and Bret Gean. Building integrated photovoltaic (BIPV) roofs for sustainability and energy efficiency. Naval Facilities Engineering Command - Engineering and Expeditionary Warfare Center, 2013. Ban-Weiss, George, Craig P. Wray, William W. Delp, Peter Ly, Hashem Akbari, and Ronnen M. Levinson. "Electricity production and cooling energy savings from installation of a building-integrated photovoltaic roof on an office building." Energy and Buildings 56 (2013): 210-220. 2011 Sleiman, Mohamad, George Ban-Weiss, Haley E. Gilbert, David François, Paul

46

Publications  

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5 results: 5 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Albert (Matty) Nematollahi [Clear All Filters] 2000 Fisk, William J., William W. Delp, Richard C. Diamond, Darryl J. Dickerhoff, Ronnen M. Levinson, Mark P. Modera, Albert(Matty) Nematollahi, and Duo Wang. "Duct systems in large commercial buildings: physical characterization, air leakage and heat conduction gains." Energy and Buildings 32, no. 1 (2000): 109-119. 1997 Levinson, Ronnen M., William W. Delp, Darryl J. Dickerhoff, William J. Fisk, Albert(Matty) Nematollahi, Ingar Stordahl, Christophe Torre, Duo Wang, Richard C. Diamond, and Mark P. Modera. Commercial Thermal Distribution Systems FINAL REPORT for California Institute for Energy Efficiency., 1997.

47

Chemical Emissions of Residential Materials and Products: Review of Available Information  

NLE Websites -- All DOE Office Websites (Extended Search)

Improving Ventilation and Saving Energy: Final Report on Indoor Environmental Quality and Energy Monitoring in Sixteen Relocatable Classrooms Michael G. Apte, Bourassa Norman, David Faulkner, Alfred T. Hodgson, Toshfumi Hotchi, Michael Spears, Douglas P. Sullivan, Duo Wang Environmental Energy Technologies Division Indoor Environment Department Lawrence Berkeley National Laboratory 4 April 2008 This research was sponsored by the California Energy Commission through the Public Interest Energy Research program as the Lawrence Berkeley National Laboratory Classroom HVAC: Improving Ventilation and Saving Energy research project, CEC Contract Number 500-03-041. The study was

48

Improving Ventilation and Saving Energy: Final Report on Indoor Environmental Quality and Energy Monitoring in Sixteen Relocatable Classrooms  

NLE Websites -- All DOE Office Websites (Extended Search)

03E 03E Improving Ventilation and Saving Energy: Final Report on Indoor Environmental Quality and Energy Monitoring in Sixteen Relocatable Classrooms Michael G. Apte, Bourassa Norman*, David Faulkner, Alfred T. Hodgson, Toshfumi Hotchi, Michael Spears, Douglas P. Sullivan, and Duo Wang 4 April 2008 Indoor Environment Department Environmental Energy Technologies Division Lawrence Berkeley National Laboratory *Now with the California Energy Commission PIER Program, Sacramento CA. This research was sponsored by the California Energy Commission through the Public Interest Energy Research program as the Lawrence Berkeley National Laboratory Classroom HVAC: Improving Ventilation and Saving Energy research project, CEC Contract Number 500-03-041.

49

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

7 results: 7 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Keyword is buildings [Clear All Filters] 2013 Campra, Pablo, and Dev Millstein. "Mesoscale Climatic Simulation of Surface Air Temperature Cooling by Highly Reflective Greenhouses in SE Spain." Environmental Science & Technology 47, no. 21 (2013): 12284-12290. Noris, Federico, William W. Delp, Kimberly Vermeer, Gary Adamkiewicz, Brett C. Singer, and William J. Fisk. "Protocol for maximizing energy savings and indoor environmental quality improvements when retrofitting apartments." Energy and Buildings 61 (2013): 378-386. Hong, Tianzhen, Le Yang, Jianjun Xia, and Wei Feng. "Building Energy Benchmarking between the United States and China: Methods and Challenges.",

50

Microsoft Word - LBNL Multifamily retrofits paper submitted_2nd revision_final_no track changes  

NLE Websites -- All DOE Office Websites (Extended Search)

Protocol for Maximizing Energy Savings and Protocol for Maximizing Energy Savings and Indoor Environmental Quality Improvements when Retrofitting Apartments Federico Noris 1 , William W. Delp 1 , Kimberly Vermeer 2 , Gary Adamkiewicz 3 , Brett C. Singer 1 and William J. Fisk 1 1 Lawrence Berkeley National Laboratory Environmental Energy Technologies Division Indoor Environment Group Berkeley, CA, USA 2 Urban Habitat Initiatives Inc. Boston, MA, USA 3 Department of Environmental Health Harvard School of Public Health Boston, MA, USA June 18, 2012 Funding was provided by the California Energy Commission, Public Interest Energy Research Program, Energy Related Environmental Research Program, through contract 500-09-022 and by the Assistant

51

Duct Systems in Large Commercial Buildings: Physical  

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Duct Systems in Large Commercial Buildings: Physical Characterization, Air Leakage, and Heat Conduction Gains William 1. Fisk, Woody Delp, Rick Diamond, Darryl Dickerhoff, Ronnen Levinson, Mark Modera, Matty Nematollahi, Duo Wang Environmental Energy Technologies Division Indoor Environment Department Lawrence Berkeley National Laboratory Berkeley CA 94720 March 30, 1999 This work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Building Technology and Community Systems, of the US Department of Energy under Contract No. DE-AC03-76SF00098 and by the California Institute For Energy Efficiency. LBNL-42339

52

Formadehyde in New Homes: Ventilation vs. Source Control  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

at at Building America Residential Energy Efficiency Stakeholder Meeting March 1, 2012 Austin, Texas Formaldehyde in New Homes --- Ventilation vs. Source Control Brett C. Singer and Henry Willem Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Acknowledgments * Funding - U.S. Department of Energy - Building America Program - U.S. EPA - Indoor Environments Division - U.S. HUD - Office of Healthy Homes and Lead Hazard Control - Cal. Energy Commission Public Interest Environmental Research * Technical Contributions - Fraunhofer - Ibacos - IEE-SF * LBNL Team - Sherman, Hotchi, Russell, Stratton, and Others Background 1  Formaldehyde is an irritant and a carcinogen  Odor threshold: about 800 ppb  Widely varying health standards  US HUD (8-h): 400 ppb

53

Protecting buildings from a biological or chemical attack: Actions to take before or during a release  

SciTech Connect

This report presents advice on how to operate a building to reduce casualties from a biological or chemical attack, as well as potential changes to the building (e.g. the design of the ventilation system) that could make it more secure. It also documents the assumptions and reasoning behind the advice. The particular circumstances of any attack, such as the ventilation system design, building occupancy, agent type, source strength and location, and so on, may differ from the assumptions made here, in which case actions other than our recommendations may be required; we hope that by understanding the rationale behind the advice, building operators can modify it as required for their circumstances. The advice was prepared by members of the Airflow and Pollutant Transport Group, which is part of the Indoor Environment Department at the Lawrence Berkeley National Laboratory. The group's expertise in this area includes: tracer-gas measurements of airflows in buildings (Sextro, Thatcher); design and operation of commercial building ventilation systems (Delp); modeling and analysis of airflow and tracer gas transport in large indoor spaces (Finlayson, Gadgil, Price); modeling of gas releases in multi-zone buildings (Sohn, Lorenzetti, Finlayson, Sextro); and occupational health and safety experience related to building design and operation (Sextro, Delp). This report is concerned only with building design and operation; it is not a how-to manual for emergency response. Many important emergency response topics are not covered here, including crowd control, medical treatment, evidence gathering, decontamination methods, and rescue gear.

Price, Phillip N.; Sohn, Michael D.; Gadgil, Ashok J.; Delp, William W.; Lorenzetti, David M.; Finlayson, Elizabeth U.; Thatcher, Tracy L.; Sextro, Richard G.; Derby, Elisabeth A.; Jarvis, Sondra A.

2003-01-29T23:59:59.000Z

54

Protecting buildings from a biological or chemical attack: Actions to take before or during a release  

SciTech Connect

This report presents advice on how to operate a building to reduce casualties from a biological or chemical attack, as well as potential changes to the building (e.g. the design of the ventilation system) that could make it more secure. It also documents the assumptions and reasoning behind the advice. The particular circumstances of any attack, such as the ventilation system design, building occupancy, agent type, source strength and location, and so on, may differ from the assumptions made here, in which case actions other than our recommendations may be required; we hope that by understanding the rationale behind the advice, building operators can modify it as required for their circumstances. The advice was prepared by members of the Airflow and Pollutant Transport Group, which is part of the Indoor Environment Department at the Lawrence Berkeley National Laboratory. The group's expertise in this area includes: tracer-gas measurements of airflows in buildings (Sextro, Thatcher); design and operation of commercial building ventilation systems (Delp); modeling and analysis of airflow and tracer gas transport in large indoor spaces (Finlayson, Gadgil, Price); modeling of gas releases in multi-zone buildings (Sohn, Lorenzetti, Finlayson, Sextro); and occupational health and safety experience related to building design and operation (Sextro, Delp). This report is concerned only with building design and operation; it is not a how-to manual for emergency response. Many important emergency response topics are not covered here, including crowd control, medical treatment, evidence gathering, decontamination methods, and rescue gear.

Price, Phillip N.; Sohn, Michael D.; Gadgil, Ashok J.; Delp, William W.; Lorenzetti, David M.; Finlayson, Elizabeth U.; Thatcher, Tracy L.; Sextro, Richard G.; Derby, Elisabeth A.; Jarvis, Sondra A.

2003-01-29T23:59:59.000Z

55

NREL: Awards and Honors - Smart, High-Performance Polyphenylenesulfide  

NLE Websites -- All DOE Office Websites (Extended Search)

Smart, High-Performance Polyphenylenesulfide (PPS) Coating System Smart, High-Performance Polyphenylenesulfide (PPS) Coating System Developers: Dr. Keith Gawlik, National Renewable Energy Laboratory; Dr. Toshifumi Sugama, Brookhaven National Laboratory; Edward Curran, Bob Curran & Sons Corporation; Edward Hallahan, Ticona Corporation. The PPS coating system is a giant step forward in the technology of coating carbon-steel surfaces for use in hostile, corrosive environments. It is a smart coating system that repairs itself. It has a high thermal conductivity. It protects surfaces from corrosion, oxidation, cracking, flaking, and fouling. And its use not only extends the life of carbon-steel tubing by 4 to 5 fold, but also cuts capital and maintenance costs for these tubes by as much as two orders of magnitude. The key to these characteristics lies in the PPS coatings' unique

56

Protecting Buildings From a Biological or Chemical Attack: actions to take  

NLE Websites -- All DOE Office Websites (Extended Search)

Protecting Buildings From a Biological or Chemical Attack: actions to take Protecting Buildings From a Biological or Chemical Attack: actions to take before or during a release Title Protecting Buildings From a Biological or Chemical Attack: actions to take before or during a release Publication Type Report Year of Publication 2003 Authors Price, Phillip N., Michael D. Sohn, Ashok J. Gadgil, William W. Delp, David M. Lorenzetti, Elizabeth U. Finlayson, Tracy L. Thatcher, Richard G. Sextro, Elisabeth A. Derby, and Sondra A. Jarvis Abstract This report presents advice on how to operate a building to reduce casualties from a biological or chemical attack, as well as potential changes to the building (e.g. the design of the ventilation system) that could make it more secure. It also documents the assumptions and reasoning behind the advice. The particular circumstances of any attack, such as the ventilation system design, building occupancy, agent type, source strength and location, and so on, may differ from the assumptions made here, in which case actions other than our recommendations may be required; we hope that by understanding the rationale behind the advice, building operators can modify it as required for their circumstances. The advice was prepared by members of the Airflow and Pollutant Transport Group, which is part of the Indoor Environment Department at the Lawrence Berkeley National Laboratory. The group's expertise in this area includes: tracer-gas measurements of airflows in buildings (Sextro, Thatcher); design and operation of commercial building ventilation systems (Delp); modeling and analysis of airflow and tracer gas transport in large indoor spaces (Finlayson, Gadgil, Price); modeling of gas releases in multi-zone buildings (Sohn, Lorenzetti, Finlayson, Sextro); and occupational health and safety experience related to building design and operation (Sextro, Delp). This report is concerned only with building design and operation; it is not a how-to manual for emergency response. Many important emergency response topics are not covered here, including crowd control, medical treatment, evidence gathering, decontamination methods, and rescue gear

57

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

44 results: 44 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Ronnen M. Levinson [Clear All Filters] 2013 Ban-Weiss, George, Craig P. Wray, William W. Delp, Peter Ly, Hashem Akbari, and Ronnen M. Levinson. "Electricity production and cooling energy savings from installation of a building-integrated photovoltaic roof on an office building." Energy and Buildings 56 (2013): 210-220. 2012 Levinson, Ronnen M.. The Case for Cool Roofs., 2012. 2011 Menon, Surabi, and Ronnen M. Levinson. Cool roofs and global cooling: a response to Jacobson & Ten Hoeve (2011)., 2011. Sleiman, Mohamad, George Ban-Weiss, Haley E. Gilbert, David François, Paul Berdahl, Thomas W. Kirchstetter, Hugo Destaillats, and Ronnen M. Levinson. "Soiling of building envelope surfaces and its effect on solar

58

Performance of Installed Cooking Exhaust Devices  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance of Installed Cooking Exhaust Devices Performance of Installed Cooking Exhaust Devices Brett C. Singer, William W. Delp, Michael G. Apte, Philip N. Price Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley, California, 94720 November 2011 Direct funding for this research was provided by the California Energy Commission through Contracts 500-05-026 and 500-08-061. Institutional support is provided to LBNL by the U.S. Department of Energy, Office of Science under Contract DE-AC02-05CH11231. LBNL-5265E-r1(3) Singer et al., Performance of Installed Cooking Exhaust Devices LBNL-5265E-r1(3) Performance of Installed Cooking Exhaust Devices Brett C. Singer 1

59

Air Leakage of Furnaces and Air Handlers  

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Air Leakage of Furnaces and Air Handlers Air Leakage of Furnaces and Air Handlers Title Air Leakage of Furnaces and Air Handlers Publication Type Journal Article LBNL Report Number LBNL-5553E Year of Publication 2010 Authors Walker, Iain S., Mile Lubliner, Darryl J. Dickerhoff, and William W. Delp Journal 2010 ACEEE Summer Study on Energy Efficiency in Buildings The Climate for efficiency is now Date Published 08/2010 Abstract In recent years, great strides have been made in reducing air leakage in residential and to a lesser extent small commercial forced air duct systems. Several authorities have introduced low leakage limits for thermal distribution systems; for example, the State of California Energy Code for Buildings gives credit for systems that leak less than 6% of the total air flow at 25 Pa.

60

Michael G Apte  

NLE Websites -- All DOE Office Websites (Extended Search)

Michael G. Apte Michael G. Apte Mike Apte Indoor Environment Group Lawrence Berkeley National Laboratory 1 Cyclotron Road MS 90R3058 Berkeley CA 94720 (510) 610-4172 MGApte@lbl.gov This publications database is an ongoing project, and not all Division publications are represented here yet. Publications 2013 Mendell, Mark J., Ekaterina Eliseeva, Morris G. Davies, Michael Spears, Agnes B. Lobscheid, William J. Fisk, and Michael G. Apte. "Association of Classroom Ventilation with Reduced Illness Absence: A Prospective Study in California Elementary Schools." Indoor Air (2013). Download: PDF (1.57 MB) 2012 Singer, Brett C., William W. Delp, Michael G. Apte, and Phillip N. Price. "Performance of Installed Cooking Exhaust Devices." Indoor Air 22, no. 3 (2012): 224-234. Download: PDF (819.53 KB)

Note: This page contains sample records for the topic "delp toshifumi hotchi" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

MEMORANDUM  

NLE Websites -- All DOE Office Websites (Extended Search)

distribution is unlimited; September 2013. distribution is unlimited; September 2013. Other requests shall be referred to NAVFAC EXWC or ESTCP. TECHNICAL REPORT TR-NAVFAC-EXWC-PW-1303 SEPTEMBER 2013 BUILDING INTEGRATED PHOTOVOLTAIC (PV) ROOFS FOR SUSTAINABILITY AND ENERGY EFFICIENCY Peter Ly, NAVFAC EXWC George Ban-Weiss, LBNL Nathan Finch, NAVFAC EXWC Craig Wray, LBNL Mark de Ogburn, NAVFAC Atlantic Woody Delp, LBNL Hashem Akbari, LBNL Scott Smaby, NAVFAC EXWC Ronnen Levinson, LBNL Bret Gean, NAVFAC EXWC SEI Group, Inc. 1 BUILDING INTEGRATED PHOTOVOLTAIC (BIPV) ROOFS FOR SUSTAINABILITY AND ENERGY EFFICIENCY Energy and Water ESTCP Number: EW-200813 September 2013 Peter Ly, NAVFAC EXWC George Ban-Weiss, LBNL Nathan Finch, NAVFAC EXWC Craig Wray, LBNL Mark de Ogburn, NAVFAC Atlantic

62

Ronnen Levinson  

NLE Websites -- All DOE Office Websites (Extended Search)

Ronnen M. Levinson Ronnen M. Levinson Ronnen Levinson Windows and Envelope Materials Group Lawrence Berkeley National Laboratory 1 Cyclotron Road MS 90-2000 Berkeley CA 94720 Office Location: 90-2056H (510) 486-7494 RMLevinson@lbl.gov This publications database is an ongoing project, and not all Division publications are represented here yet. Publications 2013 Ban-Weiss, George, Craig P. Wray, William W. Delp, Peter Ly, Hashem Akbari, and Ronnen M. Levinson. "Electricity production and cooling energy savings from installation of a building-integrated photovoltaic roof on an office building." Energy and Buildings 56 (2013): 210-220. 2012 Levinson, Ronnen M.. The Case for Cool Roofs., 2012. Download: PDF (205.7 KB) 2011 Menon, Surabi, and Ronnen M. Levinson. Cool roofs and global cooling: a

63

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

84 results: 84 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Michael G. Apte [Clear All Filters] 2013 Mendell, Mark J., Ekaterina Eliseeva, Morris G. Davies, Michael Spears, Agnes B. Lobscheid, William J. Fisk, and Michael G. Apte. "Association of Classroom Ventilation with Reduced Illness Absence: A Prospective Study in California Elementary Schools." Indoor Air (2013). 2012 Singer, Brett C., William W. Delp, Michael G. Apte, and Phillip N. Price. "Performance of Installed Cooking Exhaust Devices." Indoor Air 22, no. 3 (2012): 224-234. Bennett, Deborah H., William J. Fisk, Michael G. Apte, X. Wu, Amber L. Trout, David Faulkner, and Douglas P. Sullivan. "Ventilation, temperature, and HVAC characteristics in small and medium commercial buildings in

64

Building integrated photovoltaic (BIPV) roofs for sustainability and energy  

NLE Websites -- All DOE Office Websites (Extended Search)

integrated photovoltaic (BIPV) roofs for sustainability and energy integrated photovoltaic (BIPV) roofs for sustainability and energy efficiency Title Building integrated photovoltaic (BIPV) roofs for sustainability and energy efficiency Publication Type Report Year of Publication 2013 Authors Ly, Peter, George Ban-Weiss, Nathan Finch, Craig Wray, Mark de Ogburn, William W. Delp, Hashem Akbari, Scott Smaby, Ronnen Levinson, and Bret Gean Corporate Authors SEI Group Inc. Document Number ESTCP EW-200813 Pagination 156 pp. Date Published 09/2013 Publisher Naval Facilities Engineering Command - Engineering and Expeditionary Warfare Center Type Technical Report Report Number TR-NAVFAC-EXWC-PW-1303 Keywords Buildings Energy Efficiency, energy efficiency, Energy Usage, renewable energy, Renewable Energy: Policy & Programs Abstract

65

Sealing Ducts in Large Commercial Buildings with Aerosolized Sealant Particles  

NLE Websites -- All DOE Office Websites (Extended Search)

2414 2414 1 Sealing Ducts in Large Commercial Buildings with Aerosolized Sealant Particles M. P. Modera, O. Brzozowski ** , F. R. Carrié * , D. J. Dickerhoff, W. W. Delp, W. J. Fisk, R. Levinson, D. Wang Abstract Electricity energy savings potential by eliminating air leakage from ducts in large commercial buildings is on the order of 10 kWh/m 2 per year (1 kWh/ft 2 ). We have tested, in two large commercial buildings, a new technology that simultaneously seals duct leaks and measures effective leakage area of ducts. The technology is based upon injecting a fog of aerosolized sealant particles into a pressurized duct system. In brief, this process involves blocking all of the intentional openings in a duct system (e.g., diffusers). Therefore, when the system is pressurized, the only place for the air carrying the aerosol

66

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

66 results: 66 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Craig P. Wray [Clear All Filters] 2013 Rapp, Vi H., Albert Pastor-Perez, Brett C. Singer, and Craig P. Wray. Predicting Backdrafting and Spillage for Natural-Draft Gas Combustion Appliances: Validating VENT-II., 2013. Ban-Weiss, George, Craig P. Wray, William W. Delp, Peter Ly, Hashem Akbari, and Ronnen M. Levinson. "Electricity production and cooling energy savings from installation of a building-integrated photovoltaic roof on an office building." Energy and Buildings 56 (2013): 210-220. J. Chris Stratton, and Craig P. Wray. Procedures and Standards for Residential Ventilation System Commissioning: An Annotated Bibliography., 2013. 2012 J. Chris Stratton, William J. N. Turner, Craig P. Wray, and Iain S. Walker.

67

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

55 results: 55 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Phillip N. Price [Clear All Filters] 2012 Hult, Erin L., Darryl J. Dickerhoff, and Phillip N. Price. Measurement Methods to Determine Air Leakage Between Adjacent Zones., 2012. Singer, Brett C., William W. Delp, Michael G. Apte, and Phillip N. Price. "Performance of Installed Cooking Exhaust Devices." Indoor Air 22, no. 3 (2012): 224-234. Kiliccote, Sila, Phillip N. Price, Mary Ann Piette, Geoffrey C. Bell, Steve Pierson, Edward Koch, Jeremy Carnam, Hugo Pedro, John Hernandez, and Albert K. Chiu. Field Testing of Automated Demand Response for Integration of Renewable Resources in California's Ancillary Services Market for Regulation Products. LBNL, 2012. 2011

68

Improving Ventilation and Saving Energy: Final Report on Indoor Environmental Quality and Energy Monitoring in Sixteen Relocatable Classrooms  

NLE Websites -- All DOE Office Websites (Extended Search)

LBNL-203E LBNL-203E Improving Ventilation and Saving Energy: Final Report on Indoor Environmental Quality and Energy Monitoring in Sixteen Relocatable Classrooms Appendix Michael G. Apte, Bourassa Norman*, David Faulkner, Alfred T. Hodgson, Toshfumi Hotchi, Michael Spears, Douglas P. Sullivan, and Duo Wang 4 April 2008 A-1 Tables Table A-1. Thermal Comfort Results - May 2005, September 2005, November 2005 Room 13 - 9/19/2005 AM/PM Time Period Operative T and RH Acceptable (% of time) Operative T and RH, and Air Velocity acceptable (% of time) Average Indoor Air T (°C) Average Indoor Air RH (%) AM AM1 66.7 0.0 21.3 67.1 PM PM1 40.0 0.0 24.9 46.8 Room 13 - 5/16/2005 AM AM1 0.0 0.0 21.1 0.4 PM PM1 0.0 0.0 20.8 55.5 Room 13 - 12/1/2005 AM AM1 0.0% 0.0% 17.8 38.5

69

Residential Forced Air System Cabinet Leakage and Blower Performance  

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Residential Forced Air System Cabinet Leakage and Blower Performance Residential Forced Air System Cabinet Leakage and Blower Performance Title Residential Forced Air System Cabinet Leakage and Blower Performance Publication Type Report LBNL Report Number LBNL-3383E Year of Publication 2010 Authors Walker, Iain S., Darryl J. Dickerhoff, and William W. Delp Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords air flow measurement, air leakage, blower power measurement, blowers, energy performance of buildings group, forced air systems, furnaces, indoor environment department, other, public interest energy research (pier) program, residential hvac Abstract This project evaluated the air leakage and electric power consumption of Residential HVAC components, with a particular focus on air leakage of furnace cabinets. Laboratory testing of HVAC components indicated that air leakage can be significant and highly variable from unit to unit - indicating the need for a standard test method and specifying maximum allowable air leakage in California State energy codes. To further this effort, this project provided technical assistance for the development of a national standard for Residential HVAC equipment air leakage. This standard is being developed by ASHRAE and is called "ASHRAE Standard 193P - Method of test for Determining the Air Leakage Rate of HVAC Equipment". The final part of this project evaluated techniques for measurement of furnace blower power consumption. A draft test procedure for power consumption was developed in collaboration with the Canadian General Standards Board: CSA 823 "Performance Standard for air handlers in residential space conditioning systems".

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LBNL-4183E-rev1 N NA AT TU UR RA AL L G GA AS S V VA AR RI  

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4183E-rev1 4183E-rev1 N NA AT TU UR RA AL L G GA AS S V VA AR RI IA AB BI IL LI IT TY Y I IN N C CA AL LI IF FO OR RN NI IA A: : E EN NV VI IR RO ON NM ME EN NT TA AL L I IM MP PA AC CT TS S A AN ND D D DE EV VI IC CE E P PE ER RF FO OR RM MA AN NC CE E E EX XP PE ER RI IM ME EN NT TA AL L E EV VA AL LU UA AT TI IO ON N O OF F I IN NS ST TA AL LL LE ED D C CO OO OK KI IN NG G E EX XH HA AU US ST T F FA AN N P PE ER RF FO OR RM MA AN NC CE E Brett C. Singer, William W. Delp and Michael G. Apte Indoor Environment Department Atmospheric Sciences Department Environmental Energy Technologies Division July 2011 (Revised February 2012) Disclaimer 1 This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of

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Protocol for maximizing energy savings and indoor environmental quality  

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Protocol for maximizing energy savings and indoor environmental quality Protocol for maximizing energy savings and indoor environmental quality improvements when retrofitting apartments Title Protocol for maximizing energy savings and indoor environmental quality improvements when retrofitting apartments Publication Type Journal Article LBNL Report Number LBNL-6147E Year of Publication 2013 Authors Noris, Federico, William W. Delp, Kimberly Vermeer, Gary Adamkiewicz, Brett C. Singer, and William J. Fisk Journal Energy and Buildings Volume 61 Pagination 378-386 Date Published 06/2013 Keywords apartments, buildings, costs, energy, indoor environmental quality, Protocol, retrofits, Selection Abstract The current focus on building energy retrofit provides an opportunity to simultaneously improve indoor environmental quality (IEQ). Toward this end, we developed a protocol for selecting packages of retrofits that both save energy and improve IEQ in apartments. The protocol specifies the methodology for selecting retrofits from a candidate list while addressing expected energy savings, IEQ impacts, and costs in an integrated manner. Interviews, inspections and measurements are specified to collect the needed input information. The protocol was applied to 17 apartments in three buildings in two different climates within California. Diagnostic measurements and surveys conducted before and after retrofit implementation indicate enhanced apartment performance.

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Performance of Installed Cooking Exhaust Devices  

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Performance of Installed Cooking Exhaust Devices Performance of Installed Cooking Exhaust Devices Title Performance of Installed Cooking Exhaust Devices Publication Type Journal Article Refereed Designation Refereed LBNL Report Number LBNL-5265E Year of Publication 2012 Authors Singer, Brett C., William W. Delp, Michael G. Apte, and Phillip N. Price Journal Indoor Air Volume 22 Issue 3 Pagination 224-234 Date Published 06/2012 Keywords carbon monoxide, natural gas burners, nitrogen dioxide, range hood, task ventilation, unvented combustion, indoor environment group, Range Hood Test Facility Abstract The performance metrics of airflow, sound, and combustion product capture efficiency (CE) were measured for a convenience sample of fifteen cooking exhaust devices, as installed in residences. Results were analyzed to quantify the impact of various device- and installation-dependent parameters on CE. Measured maximum airflows were 70% or lower than values noted on product literature for 10 of the devices. Above-the-cooktop devices with flat bottom surfaces (no capture hood) - including exhaust fan/microwave combination appliances - were found to have much lower CE at similar flow rates, compared to devices with capture hoods. For almost all exhaust devices and especially for rear-mounted downdraft exhaust and microwaves, CE was substantially higher for back compared with front burner use. Flow rate, and the extent to which the exhaust device extends over the burners that are in use, also had a large effect on CE. A flow rate of 95 liters per second (200 cubic feet per minute) was necessary, but not sufficient, to attain capture efficiency in excess of 75% for the front burners. A-weighted sound levels in kitchens exceeded 57 dB when operating at the highest fan setting for all 14 devices evaluated for sound performance.

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Effects of airflow infiltration on the thermal performance of internally  

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Effects of airflow infiltration on the thermal performance of internally Effects of airflow infiltration on the thermal performance of internally insulated ducts Title Effects of airflow infiltration on the thermal performance of internally insulated ducts Publication Type Journal Article Year of Publication 2000 Authors Levinson, Ronnen M., William W. Delp, Darryl J. Dickerhoff, and Mark P. Modera Journal Energy and Buildings Volume 32 Pagination 345-354 Keywords building design, Heat Island Abstract Air flowing through a supply duct infiltrates perviously faced, porous, internal duct insulation, degrading its thermal performance. Encapsulating the insulation's air-facing surface with an impervious barrier prevents infiltration, increasing the capacity of the conditioned supply air to heat or cool the space to which it is delivered. This study determined the air-speed dependence of the thermal conductivity of fiberglass insulation by measuring the inlet-to-outlet temperature drop of heated air flowing through a long, insulated flexible duct. The conductivity of a flexible duct's low-density, internal, fiberglass-blanket insulation increased with the square of the duct air speed, rising by 140% as the duct air speed increased from 0 to 15 m s-1. At air speeds recommended for branch ducts, the conductivity of such insulation would increase by 6% above its still-air value in a residential system and by 16% in a commercial system. Results partially agreed with those reported by an earlier study. Simulations indicate that encapsulating the air-stream surface of internal fiberglass duct insulation with an impervious barrier increases the effectiveness with which a duct delivers the thermal capacity of supply air by 0.15%-0.9% in typical duct systems.

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Performance Assessment of U.S. Residential Cooking Exhaust Hoods  

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Performance Assessment of U.S. Residential Cooking Exhaust Hoods Performance Assessment of U.S. Residential Cooking Exhaust Hoods Title Performance Assessment of U.S. Residential Cooking Exhaust Hoods Publication Type Journal Article LBNL Report Number LBNL-5545E Year of Publication 2012 Authors Delp, William W., and Brett C. Singer Journal Environmental Science & Technology Volume 46 Issue 11 Pagination 6167-6173 Date Published 05/08/2012 Keywords Range Hood Test Facility Abstract This study assessed the performance of seven new residential cooking exhaust hoods representing common U.S. designs. Laboratory tests were conducted to determine fan curves relating airflow to duct static pressure, sound levels, and exhaust gas capture efficiency for front and back cooktop burners and the oven. Airflow rate sensitivity to duct flow resistance was higher for axial fan devices than for centrifugal fan devices. Pollutant capture efficiency (CE) ranged from 98%, varying across hoods and with airflow and burner position for each hood. CE was higher for back burners relative to front burners, presumably because most hoods covered only part of the front burners. Open hoods had higher CE than those with grease screen and metal-covered bottoms. The device with the highest CE-exceeding 80% for oven and front burners-had a large, open hood that covered most of the front burners. The airflow rate for this hood surpassed the industry-recommended level of 118 L·s-1 (250 cfm) and produced sound levels too high for normal conversation. For hoods meeting the sound and fan efficacy criteria for Energy Star, CE was <30% for front and oven burners.

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Electricity production and cooling energy savings from installation of a  

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production and cooling energy savings from installation of a production and cooling energy savings from installation of a building-integrated photovoltaic roof on an office building Title Electricity production and cooling energy savings from installation of a building-integrated photovoltaic roof on an office building Publication Type Journal Article Year of Publication 2013 Authors Ban-Weiss, George, Craig P. Wray, William W. Delp, Peter Ly, Hashem Akbari, and Ronnen M. Levinson Journal Energy and Buildings Volume 56 Pagination 210 - 220 ISSN 0378-7788 Keywords Advanced Technology Demonstration, building design, Building heat transfer, cool roof, energy efficiency, Energy Performance of Buildings, energy savings, Energy Usage, energy use, Heat Island Abstract Reflective roofs can reduce demand for air conditioning and warming of the atmosphere. Roofs can also host photovoltaic (PV) modules that convert sunlight to electricity. In this study we assess the effects of installing a building integrated photovoltaic (BIPV) roof on an office building in Yuma, AZ. The system consists of thin film PV laminated to a white membrane, which lies above a layer of insulation. The solar absorptance of the roof decreased to 0.38 from 0.75 after installation of the BIPV, lowering summertime daily mean roof upper surface temperatures by about 5 °C. Summertime daily heat influx through the roof deck fell to ±0.1 kWh/m2from 0.3-1.0 kWh/m2. However, summertime daily heat flux from the ventilated attic into the conditioned space was minimally affected by the BIPV, suggesting that the roof was decoupled from the conditioned space. Daily PV energy production was about 25% of building electrical energy use in the summer. For this building the primary benefit of the BIPV appeared to be its capacity to generate electricity and not its ability to reduce heat flows into the building. Building energy simulations were used to estimate the cooling energy savings and heating energy penalties for more typical buildings.

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Outdoor airflow into HVAC systems: An evaluation of measurement  

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Outdoor airflow into HVAC systems: An evaluation of measurement Outdoor airflow into HVAC systems: An evaluation of measurement technologies Title Outdoor airflow into HVAC systems: An evaluation of measurement technologies Publication Type Report LBNL Report Number LBNL-53834 Year of Publication 2003 Authors Fisk, William J., David Faulkner, Douglas P. Sullivan, and William W. Delp Abstract During the last few years, new technologies have been introduced for measuring the flow rates of outdoor air (OA) into HVAC systems; however, an evaluation of these measurement technologies has not previously been published. This document describes a test system and protocols developed for controlled evaluation of these measurement technologies. The results of tests of three measurement technologies are also summarized. The test system and protocol were judged practical and very useful. The test results indicate that one measurement technology can measure OA flow rates with errors of 20% or less without a field-based calibration, as long as the OA velocities are sufficient to provide an accurately measurable pressure signal. The test results for a second measurement technology are similar; however, a difficult field-based calibration relating the OA flow rate with the pressure signal would be required to reduce errors below approximately 30%. The errors in OA flow rates measured with the third measurement technology, that uses six electronic airspeed sensors downstream of the OA inlet louver, exceeded 100%; however, these errors could be substantially reduced through a difficult field based calibration. The effects of wind on the accuracy of these measurement technologies still needs to be evaluated

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Sealing Ducts in Large Commercial Buildings with Aerosolized Sealant  

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Sealing Ducts in Large Commercial Buildings with Aerosolized Sealant Sealing Ducts in Large Commercial Buildings with Aerosolized Sealant Particles Title Sealing Ducts in Large Commercial Buildings with Aerosolized Sealant Particles Publication Type Journal Article LBNL Report Number LBNL-42414 Year of Publication 2001 Authors Modera, Mark P., Olivier Brzozowski, François Rémi Carrié, Darryl J. Dickerhoff, William W. Delp, William J. Fisk, Ronnen M. Levinson, and Duo Wang Journal Energy & Buildings Volume 34 Start Page Chapter Pagination 705-714 Abstract Electricity energy savings potential by eliminating air leakage from ducts in large commercial buildings is on the order of 10 kWh/m2 per year (1 kWh/ft2). We have tested, in two large commercial buildings, a new technology that simultaneously seals duct leaks and measures effective leakage area of ducts. The technology is based upon injecting a fog of aerosolized sealant particles into a pressurized duct system. In brief, this process involves blocking all of the intentional openings in a duct system (e.g., diffusers). Therefore, when the system is pressurized, the only place for the air carrying the aerosol particles to exit the system is through the leaks. The key to the technology is to keep the particles suspended within the airstream until they reach the leaks, and then to have them leave the airstream and deposit on the leak sites. The principal finding from this field study was that the aerosol technology is capable of sealing the leaks in a large commercial building duct system within a reasonable time frame. In the first building, 66% of the leakage area was sealed within 2.5 hours of injection, and in the second building 86% of the leakage area was sealed within 5 hours. We also found that the aerosol could be blown through the VAV boxes in the second building without impacting their calibrations or performance. Some remaining questions are (1) how to achieve sealing rates comparable to those experienced in smaller residential systems; and (2) what tightness level these ducts systems can be brought to by means of aerosol sealing.

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Natural Gas Variability In California: Environmental Impacts And Device  

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Natural Gas Variability In California: Environmental Impacts And Device Natural Gas Variability In California: Environmental Impacts And Device Performance - Experimental Evaluation Of Installed Cooking Exhaust Fan Performance Title Natural Gas Variability In California: Environmental Impacts And Device Performance - Experimental Evaluation Of Installed Cooking Exhaust Fan Performance Publication Type Report Year of Publication 2011 Authors Singer, Brett C., William W. Delp, and Michael G. Apte Publisher Lawrence Berkeley National Laboratory City Berkeley, CA Keywords energy analysis and environmental impacts department Abstract The installed performance of cooking exhaust fans was evaluated through residential field experiments conducted on a sample of 15 devices varying in design and other characteristics. The sample included two rear downdraft systems, two under-cabinet microwave over range units, three different installations of an under-cabinet model with grease screens across the bottom and no capture hood, two devices with grease screens covering the bottom of a large capture hood (one under-cabinet, one wall-mount chimney), four under-cabinet open hoods, and two open hoods with chimney mounts over islands. Performance assessment included measurement of airflow and sound levels across fan settings and experiments to quantify the contemporaneous capture efficiency for the exhaust generated by natural gas cooking burners. Capture efficiency is defined as the fraction of generated pollutants that are removed through the exhaust and thus not available for inhalation of household occupants. Capture efficiency was assessed for various configurations of burner use (e.g., single front, single back, combination of one front and one back, oven) and fan speed setting. Measured airflow rates were substantially lower than the levels noted in product literature for many of the units. This shortfall was observed for several units costing more than $1000. Capture efficiency varied widely (from < 5 percent to roughly 100 percent) across devices and across conditions for some devices. As expected, higher capture efficiencies were achieved with higher fan settings and the associated higher air flow rates. In most cases, capture efficiencies were substantially higher for rear burners than for front burners. The best and most consistent performance was observed for open hoods that covered all cooktop burners and operated at higher airflow rates. The lowest capture efficiencies were measured when a front burner was used with a rear backdraft system or with lowest fan setting for above-the-range systems that do not cover the front burners.

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Experimental Evaluation of Installed Cooking Exhaust Fan Performance  

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Experimental Evaluation of Installed Cooking Exhaust Fan Performance Experimental Evaluation of Installed Cooking Exhaust Fan Performance Title Experimental Evaluation of Installed Cooking Exhaust Fan Performance Publication Type Report LBNL Report Number LBNL-4183E Year of Publication 2010 Authors Singer, Brett C., William W. Delp, and Michael G. Apte Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords airflow & pollutant transport group, cooktop, energy analysis and environmental impacts department, gas burners, indoor air quality, indoor environment department, kitchen, nitrogen dioxide, oven, pollutant emissions, range hood, residential, source control, task ventilation, technology, sustainability and impact assessment group Abstract The installed performance of cooking exhaust fans was evaluated through residential field experiments conducted on a sample of 15 devices varying in design and other characteristics. The sample included two rear downdraft systems, two under-cabinet microwave over range (MOR) units, three different installations of an under-cabinet model with grease screens across the bottom and no capture hood, two devices with grease screens covering the bottom of a large capture hood (one under-cabinet, one wall-mount chimney), four under-cabinet open hoods, and two open hoods with chimney mounts over islands. Performance assessment included measurement of airflow and sound levels across fan settings and experiments to quantify the contemporaneous capture efficiency for the exhaust generated by natural gas cooking burners. Capture efficiency is defined as the fraction of generated pollutants that are removed through the exhaust and thus not available for inhalation of household occupants. Capture efficiency (CE) was assessed for various configurations of burner use (e.g. single front, single back, combination of one front and one back, oven) and fan speed setting. Measured airflow rates were substantially lower than the levels noted in product literature for many of the units. This shortfall was observed for several units costing in excess of $1000. Capture efficiency varied widely (from <5% to roughly 100%) across devices and across conditions for some devices. As expected, higher capture efficiencies were achieved with higher fan settings and the associated higher air flow rates. In most cases, capture efficiencies were substantially higher for rear burners than for front burners. The best and most consistent performance was observed for open hoods that covered all cooktop burners and operated at higher airflow rates. The lowest capture efficiencies were measured when a front burner was used with a rear backdraft system or with lowest fan setting for above the range systems that do not cover the front burners.

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Data summary report of commercial building experiments in Salt Lake City,  

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Data summary report of commercial building experiments in Salt Lake City, Data summary report of commercial building experiments in Salt Lake City, UT from May 17 to June 10, 2002 Title Data summary report of commercial building experiments in Salt Lake City, UT from May 17 to June 10, 2002 Publication Type Report Year of Publication 2003 Authors Black, Douglas R., Tracy L. Thatcher, William W. Delp, Elisabeth A. Derby, Sheng-Chieh Chang, and Richard G. Sextro Abstract Under some circumstances, it may be desirable to provide all or part of a building with collective- protection against harmful chemical or biological (CB) agents. Collective-protection, as opposed to individual protection, uses the building -- its architecture, ventilation system, and control components -- to safeguard the health of the building occupants in the event of an indoor or outdoor release of toxic agents. In this study, we investigate the movement of tracer gases within a six-story building. The building was retrofitted to provide collective-protection on the upper two floors. To achieve this protection, the upper floors were over-pressurized using outside air that had passed through military specification carbon canisters and high-efficiency particulate air (HEPA) filters. The four lower floors were outside the collective-protection area and had a ventilation system that was retrofitted to provide response modes in the event of a CB release. These response modes (e.g. building flush and shelter in place) were designed to reduce the exposure of occupants on the lower floors without compromising the collective-protection zones. Over the course of four weeks, 16 tracer gas experiments were conducted to evaluate the collective- protection system (CPS) of the building's upper two floors and the ventilation response modes of the lower floors. Tracer gas concentrations were measured at a rate of 50 Hz in up to 30 locations in each experiment, which provided data with very high spatial and temporal resolution. Differential pressure and temperature measurements were also made throughout the building. Experiments showed that the CPS maintained a positive pressure differential between the upper two floors and the lower floors with various meteorological conditions and within specified settings of the HVAC fans serving the lower floors. However, the tracer experiments did show that a CB agent could enter the first zone of the decontamination areas on each CPS floor. Tracer gas analysis also showed that the shelter in place HVAC mode provided protection of lower floor occupants from an outdoor release by significantly lowering the air exchange rates on those floors. It was also determined that the efficacy of a flush mode triggered by an agent sensor depends greatly on the location of the sensor