May Chapter Meeting: Distinguished Lecturer - "CO2 Monitoring for Outdoor Airflow and Demand-Controlled Ventilation"

Title: CO2 Monitoring for Outdoor Airflow and Demand-Controlled Ventilation

Speaker: Thomas Lawrence, PhD

Presentation

GBCI Approved | 1 CE Hour | 092001415

AIA Approved | 1 LU | LAWRENCE01

A number of programs and standards that exist for buildings today specify the use of outdoor air monitoring. Monitoring is to be done either based on CO2 levels in the occupied space or actual measurement of outdoor airflow, depending on the space design occupancy and ventilation type (mechanical or natural). Current standards or program descriptions do not provide detailed guidance for determining what level of CO2 should be considered the maximum concentration to expect, and those that do provide guidance are generally based on a single value above the ambient concentration. This session describes how to determine a level for CO2 concentrations for an outdoor airflow monitoring program or as part of the upper control limit for a demand-control ventilation system.

Speaker Bio

Dr. Lawrence is the Mechanical Engineering program lead with the University of Georgia, and has 35 years of professional experience. He spent the first 18 years in industry and after going back for his PhD at Purdue he has been at UGA since January 2004. He is the past chair of ASHRAE Technical Committee 2.8 and is a member of the committee that wrote and maintains ASHRAE Standard 189.1 for High Performance Green Buildings. As an ASHRAE Distinguished Lecturer, he gives seminars on green building design at venues around the world. Dr. Lawrence was named an ASHRAE Fellow in 2016 and is a Director-at-Large on the Board of Directors for ASHRAE.

Dr. Lawrence has a B.S. with Highest Distinction in Environmental Science from Purdue University (1978), a M.S. degree in Mechanical Engineering from Oregon State University (1982) and a second M.S. degree in Engineering Management from Washington University in 1989. He received a Ph.D. in Mechanical Engineering from Purdue University in the spring of 2004

Distinguished Lecturer Program

The purpose of the ASHRAE Distinguished Lecturers (DL) Program is to provide ASHRAE Chapters with lecturers equipped to speak on relevant subjects of interest to ASHRAE members and guests without incurring huge costs by covering travel expenses to and from the host city. Distinguished Lecturers are nominated by ASHRAE members and presentations are evaluated. The Distinguished Lecturer Program is supervised by the Chapter Technology Transfer Committee. For the 2018-19 Society Year, 195 visits are allocated to the 15 ASHRAE Regions. The CTTC Regional Vice Chair for each Region allocates visits to the Chapters.