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Search Publications by: Steven Emmerich (Fed)

Displaying 126 - 150 of 303

Development and Application of an Updated Whole-Building Coupled Thermal, Airflow, and Contaminant Transport Simulation Program (TRNSYS/CONTAM)

July 23, 2014

Author(s)

William S. Dols, Wang Liangzhu, Steven J. Emmerich, Brian J. Polidoro

The TRNSYS energy analysis tool has been capable of simulating whole building coupled heat transfer and building airflow for several years. The current implementation is based on two TRNSYS modules Type 56 and Type 97. Type 97 is based on a subset of the

An improved method of modeling infiltration in commercial building energy models

April 28, 2014

Author(s)

Lisa C. Ng, Steven J. Emmerich, Andrew K. Persily

As various strategies for improving building envelope and HVAC equipment efficiencies are increasingly used to reduce building energy use, a greater percentage of energy loss can occur through building envelope leakage. Although the energy impacts of

Evaluating Building Ventilation Strategies Using Newly-Developed TRNSYS/CONTAM Simulation Capabilities

April 3, 2014

Author(s)

William S. Dols, Steven J. Emmerich, Brian J. Polidoro

Building energy analysis tools are available in many forms that provide the ability to address a broad spectrum of energy-related issues in various combinations. Often these tools operate in isolation from one another, making it difficult to evaluate the

Analysis of U.S Commercial Building Envelope Air Leakage Database to Support Sustainable Building Design

March 26, 2014

Author(s)

Steven J. Emmerich, Andrew K. Persily

In 1998, NIST published a review of commercial and institutional building airtightness data that found significant levels of air leakage and debunked the myth of the airtight commercial building (Persily 1998). Since then, NIST has expanded and maintained

Consideration of Envelope Airtightness in Modelling Commercial Building Energy Consumption

March 26, 2014

Author(s)

Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich

As strategies for improving building envelope and HVAC equipment efficiencies are increasingly required to reduce building energy use, a greater percentage of energy loss will occur through building envelope leakage. Although the energy impacts of

A Graphical Approach to Evaluating High-Performing Buildings:Indoor Air Quality, Energy, Water, and Waste

February 20, 2014

Author(s)

Kevin Y. Teichman, Steven J. Emmerich, Andrew K. Persily

In this paper, we describe and demonstrate a graphical approach to illustrating the performance of high-performing buildings. Our approach enables building designers, owners, operators, and occupants to evaluate the performance of a building as designed

IAQ 2013 Tools Topic Overview

February 20, 2014

Author(s)

Steven J. Emmerich, Larry Schoen

The complex relationships between indoor and outdoor environmental conditions, coupled with the impacts of climate change, make it more important than ever before that buildings be comfortable and healthy for the occupants yet also energy efficient. This

Environmental Health in Low Energy Buildings Topic Overview

February 11, 2014

Author(s)

Steven J. Emmerich, Hal Levin

Besides providing thermal comfort and acceptable indoor environmental quality (IEQ), the designers of buildings and other enclosed spaces are increasingly challenged to provide a healthy environment in an energy efficient manner. Increasing pressure to

The IAQ and Energy Impacts of Reducing Formaldehyde Emissions in Commercial Building

February 11, 2014

Author(s)

Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich, Kevin Y. Teichman

Heating, ventilating, and air conditioning (HVAC) systems in buildings are designed to provide thermally comfortable conditions and to maintain acceptable indoor air quality (IAQ). At the same time, the operating costs of HVAC systems are often a large

Application of a Natural Ventilation System Design Tool To A School Building

November 8, 2013

Author(s)

Steven J. Emmerich, William S. Dols, Brian J. Polidoro

A software tool to aid in the design of natural ventilation systems has recently been udpated. This update implements a general method for sizing of natural ventilation components, which allows direct consideration of stack and wind-driven airflow. The

Dissecting Interactions Among Indoor Environmental Quality Factors

November 8, 2013

Author(s)

Hal Levin, Steven Emmerich

Many aspects of indoor environmental quality (IEQ) and the technologies that control or otherwise affect it are interactive and often closely connected. This has important implications for the design and construction of buildings as well as for operation

Indoor Air Quality in High-Performing Building Case Studies: A Wealth of Intent, A Dearth of Data

September 19, 2013

Author(s)

Kevin Y. Teichman, Steven J. Emmerich, Andrew K. Persily

In this paper, we review how indoor air quality has been addressed in case studies of high-performing buildings, specifically the case studies described in ASHRAEs High Performing Buildings magazine. We find that nearly all reported case studies of high

Indoor Air Quality in High-Performing Building Case Studies:A Wealth of Intent, A Dearth of Data

September 19, 2013

Author(s)

Kevin Y. Teichman, Andrew K. Persily, Steven J. Emmerich