Advanced economizer controller for dual-duct air-handling systems - with a case application Academic Article uri icon


  • A heating penalty is expected when economizers are applied to dual-duct air-handling systems. The heating penalty can be even higher than the cooling savings when the hot airflow is higher than the cold airflow. To avoid the excessive heating penalty, advanced economizers are developed in this paper. The application of the advanced economizer has resulted in savings of $7,000/yr in one 95,000-ft 2 (8,800-m 2 ) school building since 1993. The impacts of cold and hot deck settings on the energy consumption are also discussed.

published proceedings

  • ASHRAE Transactions

author list (cited authors)

  • Liu, M., Claridge, D. E., & Park, B. Y.

complete list of authors

  • Liu, M||Claridge, DE||Park, BY

publication date

  • December 1997