Research Article Open Access

THE EFFECT OF VENTILATION AND ECONOMIZER ON ENERGY CONSUMPTIONS FOR AIR SOURCEHEAT PUMPS IN SCHOOLS

Nihal Al Raees1, Nabil Nassif1 and Fouad Al Rifaie1
  • 1 North Carolina A and T State University, USA
American Journal of Engineering and Applied Sciences
Volume 7 No. 1, 2014, 58-65

DOI: https://doi.org/10.3844/ajeassp.2014.58.65

Submitted On: 30 January 2014 Published On: 18 March 2014

How to Cite: Raees, N. A., Nassif, N. & Rifaie, F. A. (2014). THE EFFECT OF VENTILATION AND ECONOMIZER ON ENERGY CONSUMPTIONS FOR AIR SOURCEHEAT PUMPS IN SCHOOLS. American Journal of Engineering and Applied Sciences, 7(1), 58-65. https://doi.org/10.3844/ajeassp.2014.58.65

Abstract

The study discusses the applications of CO2-based demand-controlled ventilation DCV strategy integrated with the economizer for air source heat pumps in schools, investigates their impact on the annual heating, cooling and total energy consumption, also determines the potential savings achieved in different USA locations. The study includes detailed energy analysis on an existing middle school through whole building simulation energy software. The simulation model is first calibrated and checked for accuracy using actual monthly utility data. This model is then used for savings calculations resulted from a combination of air-side economizer and CO2-based DCV and with various occupancy profiles and locations. The results show that a significant saving could be obtained as compared to the actual operating strategy implemented in the existing system and this saving depends mainly on the actual occupancy profile and building locations.

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Keywords

  • HVAC Systems
  • Ventilation Control
  • Heat Pump
  • CO2 Concentration
  • Economizer