BEP Staff Directory

click on a name

Mr. Jerry Atchley	Dr. William Miller
Mr. Phillip Childs	Ms. Therese Stovall
Mr. André Desjarlais	Ms. Teresa Williams
Dr. Achilles Karagiozis	Dr. David Yarbrough
Dr. Jan Kosny

Jerry Atchley atchleyja@ornl.gov

Engineering Technologist: Building Envelopes Program (BEP); Joined the Buildings Technology Center staff in 1993

Responsibilities:
Set up instruments and assist principal investigators with performance testing and data acquisition on experimental test sections

Education:
Associate Degree in Electronics (1991)

Phillip Childs childspw@ornl.gov

Staff Engineer: Building Envelopes Program (BEP); employed at ORNL since 1974; recent activities include assessing the long-term durability and energy efficiency of various roofing systems using field and laboratory reflectance measurements

Responsibilities:
Responsible for the set-up, operation, and analysis of experiments in the Rotatable Guarded Hot Box (RGHB) and for the instrumentation of field experiments, including infrared thermography and solar reflectance measurements

Education:
Associate of Science, Pre-engineering - Roane State Community College (1980); B.S., Organizational Management - Tusculum College (1997)

André Desjarlais desjarlaisa@ornl.gov

Program Manager: Building Envelopes Program (BEP); Prior to joining the Buildings Technology Center in 1991, he was the manager of the Thermophysics Laboratory at Holometrix, Inc., where he conducted research on the thermophysical properties of materials and systems with an emphasis on reflective insulation systems and fenestration products

files

Responsibilities / Research Programs:
Areas of research include in-situ testing protocols, the development of standardized means of determining the long-term thermal performance of closed cell plastic foams, and the impacts of moisture in low-slope roof systems

Education:
Bachelor's degree, Aeronautical Engineering - Boston University (1973)

Publications:
Listing of publications

Achilles Karagiozis karagiozisan@ornl.gov

Distinguished Research & Development Engineer: Building Envelopes Program (BEP); Joined the Buildings Technology Center in 1998; has written or co-authored over seventy-two publications, and is an Adjunct Professor in the Civil Engineering Department at the University of Waterloo

Responsibilities / Research Programs:
Areas of research include moisture control, building envelope system performance, and evaluation of hygrothermal performance of building materials - see Hygrothermal Property Measurements Program and Envelope Moisture Control Program; currently developing the next generation of software packages for hygrothermal-durability analysis

	Education: B.Sc., Mechanical Engineering - University of New Brunswick (1984); M.Sc., Mechanical Engineering - University of New Brunswick (1986); Diploma-von Karman Institute, Environmental and Applied Fluid Dynamics (1987); Ph.D., Mechanical Engineering - University of Waterloo (1991)
	Publications: Listing of publications

Jan Kosny kosnyj@ornl.gov

Senior Research Engineer: Building Envelopes Program (BEP); Joined the Buildings Technology Center staff in 1998 and is the author of over sixty technical papers and reports on energy conservation in buildings

Responsibilities / Research Programs:
Areas of research include heat transfer in building envelope components, building envelope technologies, passive systems of solar heating, and environmental aspects of using modern building envelope materials; see Advanced Wall Systems program

Education:
M.Sc. (Eng.) in Civil Engineering - Rzeszow University of Technology, Poland - Department of Construction Mechanics (1981); Ph.D. in Civil Engineering - Institute of Fundamental Technological Research, Polish Academy of Sciences - Warsaw, Poland (1991)

Publications:
Listing of Publications

William Miller millerwa1@ornl.gov

Senior Research Engineer: Building Envelopes Program (BEP); Joined the Buildings Technology Center staff in 1979; has designed and directed the setup of numerous refrigeration systems and was principal investigator of a non-federally funded contract awarded ORNL by the Gas Research Institute

Responsibilities / Research Programs:
Experimental work includes the initial and subsequent tri-monthly measurement of reflectivity of the test membranes, weekly organization of the temperature and heat flux data acquisition and the comparison of cool and black membrane thermal performance; see Reflective Roofing Systems Program and R30/30 Roofing Systems Program

Education:
B.S., Agriculture, Plant and Soil Science - University of Tennessee (1974); B.S., Mechanical Engineering - University of Tennessee (1978); M.S., Mechanical Engineering - University of Tennessee (1980); Ph.D., Mechanical Engineering - University of Tennessee (1998)

Publications:
Listing of Important Publications

Tom Petrie petrietw@ornl.gov (Retired)

Senior Research Engineer: Building Envelope Systems; Joined the Buildings Technology Center (BTC) staff in 1995 after research activities since 1988 with the BTC while on the faculty in Mechanical Engineering at Marquette University

Responsibilities / Research Programs:
Design, execute and analyze experiments in the Large-Scale Climate Simulator (LSCS) - see Residential Attics and Cathedral Ceilings Program; author of solar radiation control fact sheet and interactive estimating tool for low-slope roofs - see Reflective Roofing Systems Program; conducted year long side-by-side test of houses with conventional wood-framed walls and houses with alternative technologies such as insulating concrete form walls and autoclaved aerated concrete walls and validated DOE2 models of houses - see Advanced Walls Systems Program

Education:
B.S.M.E. - Marquette University (1964); M.S.M.E. - University of Minnesota (1967); Ph.D. - University of Minnesota (1969)

Publications:
Listing of Important Publications

Therese Stovall stovalltk@ornl.gov

	Senior Research Engineer: Therese K. Stovall is a member of the Building Envelopes Program at Oak Ridge National Laboratory. Her efforts are directed at material and system property measurements and computer modeling. She is responsible for the DOE Insulation Fact Sheet, the second most requested document published by DOE, and has contributed to a more accurate characterization of evacuated insulation panels. She also supports ORNL’s distributed generation programs Previously, Therese supported the Advanced Neutron Source program and managed the Ice Storage Test Facility, a commercial ice storage testing program sponsored by the Electric Power Research Institute. She received a patent for a load management method using wallboard containing a phase change material. Ms. Stovall served as a member of the Hood River Conservation Project Advisory Council. Her work in the energy conservation field included development of the Residential Conservation Service Model Audit. She served as a Technical Support Representative for HUD's District Heating Program, helping city planners identify and assess district heating applications. She coauthored the PRESTO turbine cycle analysis code, which received a Certificate of Recognition from NASA
	Responsibilities / Research Programs: Contributes to laboratory evaluations of a variety of insulation materials - see Existing Insulation Materials Performance Program; supports the Department of Energy's Distributed Energy Resources Program
	Education: Therese Stovall received her B.S.M.E. with distinction from Purdue University in 1977, where she participated in the co-op program. She received her M.S.M.E. from the University of Tennessee in 1988 and is a Licensed Professional Engineer in the state of Tennessee. She is also a member of the American Society of Mechanical Engineers, the American Society for Testing and Materials, and the American Society of Heating Refrigerating and Air Conditioning Engineers
	Publications: Selected Publications

Teresa Williams williamst@ornl.gov

Administrative Assistant: Building Envelopes Program (BEP). Teresa has worked in the Buildings Technology Center since February 2005; she has over 16 years experience in secretarial duties, office management and computer application packages. Teresa previously worked for the Chief Information Officer in the Information System and Technology Department at BWXT-Y12.

Teresa was a 2007 finalist in the YWCA Tribute to Women.

Responsibilities:
Provides administrative support to the Building Envelopes Program and Group Leader, André Desjarlais, Project Management Assistant (group finance), Conference Secretary for Thermal Performance of the Exterior Envelopes of Whole Buildings X International Conference, and Web site maintenance for group web site and Buildings X site

David Yarbrough yarbroughdw@ornl.gov

Responsibilities / Research Programs:
Collect and analyze data for cellulose insulation and insulation for manufactured homes; evaluate long-term performance of foam board insulations; design and carry out projects dealing with thermal insulation; see Non-HCFC Closed-Cell Foam Insulation Program and Existing Insulation Materials Program

Education:
B.Ch.E., Chemical Engineering - Georgia Institute of Technology (1960); M.S., Chemical Engineering - Georgia Institute of Technology (1961); Ph.D., Chemical Engineering - Georgia Institute of Technology (1966)

Publications:
Listing of Publications