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Author: steven emmerich

Displaying records 51 to 60 of 83 records.
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51. Investigation of the Impact of Commercial Building Envelope Airtightness on HVAC Energy Use
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7238
Published: 6/1/2005
Authors: Steven J Emmerich, Timothy P. McDowell, W Anis
Abstract: This report presents a simulation study of the energy impact and cost effectiveness of improving envelope airtightness in U.S. commercial buildings. Despite common assumptions, measurements have shown that typical U.S. commercial buildings are not p ...

52. Modeling the IAQ Impact of HHI Interventions in Inner-City Housing
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7212
Published: 3/1/2005
Authors: Steven J Emmerich, Cynthia H. Reed
Abstract: The U.S. Department of Housing and Urban Development (HUD) has identified a need to improve urban housing conditions to protect children s health through its Healthy Homes Initiative (HHI). One critical area within this program is to address a wide r ...

53. Simulated Performance of Natural and Hybrid Ventilation Systems in an Office Building
Series: NIST Interagency/Internal Report (NISTIR)
Published: 2/1/2005
Authors: Steven J Emmerich, J Crum
Abstract: A key finding of past research on natural ventilation is that the potential application of pure natural ventilation systems may be limited in the United States by issues such as climate suitability, humidity control, and reliability. However, hybrid ...

54. Modeling the Performance of a Naturally Ventilated Commercial Building With a Multizone Coupled Thermal/Airflow Simulation Tool.
Published: 6/26/2004
Authors: James W Axley, Steven J Emmerich, George Walton
Abstract: Naural ventilation systems have long been employed in European residences to control indoor air quality and provide thermal comfort. European building designers have turned to natural ventilation to control air quality and cool commercial and institu ...

55. Predicting the Performance of Gaseous Air Cleaners Measurements and Model Simulations From a Residential-Scale Pilot Study
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7114
Published: 5/1/2004
Authors: Cynthia H. Reed, Steven J Nabinger, Steven J Emmerich
Abstract: As part of an ongoing effort to evaluate the predictive capability of indoor air quality (IAQ) simulation tools, the National Institute of Standards and Technology (NIST) is evaluating the ability of the multi-zone IAQ model CONTAM to predict the eff ...

56. Source Strengths of Ultrafine and Fine Particles Due to Cooking With a Gas Stove
Published: 4/1/2004
Authors: L A Wallace, Steven J Emmerich, Cynthia H. Reed
Abstract: Cooking, particularly frying, is an important source of particles indoors. Few studies have measured a full range of particle sizes produced during cooking. In this study, particles in 124 size bins from 0.01 mm to 2.5 mm were measured continuously ...

57. Effect of Central Fans and In-Duct Filters on Deposition Rates of Ultrafine and Fine Particles in an Occupied Townhouse
Published: 1/1/2004
Authors: L A Wallace, Steven J Emmerich, Cynthia H. Reed
Abstract: Airborne particles are implicated in morbidity and mortality of certain high-risk subpopulations. Exposure to particles occurs mostly indoors, where a main removal mechanism is deposition to surfaces. Deposition can be affected by the use of forced ...

58. Air and Pollutant Transport From Attached Garages to Residential Living Spaces
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7072
Published: 12/1/2003
Authors: Steven J Emmerich, Cynthia H. Reed
Abstract: NIST is conducting a study on the indoor air quality (IAQ) impacts and engineering solutions related to the transport of pollutants from attached garages to residential living spaces. Natural or fan-induced pressure differences across air leakage pa ...

59. Effect of Ventilation Systems and Air Filters on Decay Rates of Particles by Indoor Sources in an Occupied Townhouse
Published: 12/1/2003
Authors: Cynthia H. Reed, L A Wallace, Steven J Emmerich
Abstract: Several studies have shown the importance of particle losses in real homes due to deposition; however, none have shown the impact of using a central forced air fan and in-duct filter on particle deposition rates. In an attempt to provide such data, t ...

60. Simulations of Indoor Air Quality and Ventilation Impacts of Demand Controlled Ventilation in Commercial and Institutional Buildings
Series: NIST Interagency/Internal Report (NISTIR)
Published: 12/1/2003
Authors: Andrew Keith Persily, A L Musser, Steven J Emmerich, Michael A Taylor
Abstract: Carbon-dioxide (CO2) based demand controlled ventilation (DCV) offers the potential for more energy efficient building ventilation compared with constant ventilation rates based on design occupancy levels. A number of questions related to CO2-based ...

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