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Investigation of Unresolved Issues From ATL Temperature Control Module



Stephen J. Treado


A series of measurements and performance evaluations has been conducted in the Temperature Control Module (TCM) for three control system vendors in order to demonstrate their ability to meet the high accuracy temperature control specification for the Advanced Technology Laboratory (ATL) of +/- 0.01 degree Centigrade. Some additional performance issues remain unresolved, including airflow measurements, damper leakage, air temperature gradients and thermal conditions in the floor slab. This report describes the results of the follow-up measurements and analysis to resolve these outstanding issues, and to provide guidance for the design and operation of the ATL building.
NIST Interagency/Internal Report (NISTIR) - 6209
Report Number


airflow, buildings, control systems, cooling, flow measurement, HVAC, thermal performance, ventilation


Treado, S. (2017), Investigation of Unresolved Issues From ATL Temperature Control Module, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD (Accessed April 14, 2024)
Created February 19, 2017