Economic benefits of an economizer system: Energy savings and reduced sick leave
This study estimated the health, energy, and economic benefits of an economizer ventilation control system that increases outside air supply during mild weather to save energy. A model of the influence of ventilation rate on airborne transmission of respiratory illnesses was used to extend the limited data relating ventilation rate with illness and sick leave. An energy simulation model calculated ventilation rates and energy use versus time for an office building in Washington, D.C. with fixed minimum outdoor air supply rates, with and without an economizer. Sick leave rates were estimated with the disease transmission model. In the modeled 72-person office building, our analyses indicate that the economizer reduces energy costs by approximately $2000 and, in addition, reduces sick leave. The annual financial benefit of the decrease in sick leave is estimated to be between $6,000 and $16,000. This modeling suggests that economizers are much more cost effective than currently recognized.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE. Assistant Secretary for Energy Efficiency and Renewable Energy, Building Technologies Program; Finnish Technology Agency and Finnish Occupational Health Fund, project Productive Office 2005. (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 821457
- Report Number(s):
- LBNL-54475; R&D Project: 474508; TRN: US200411%%162
- Resource Relation:
- Conference: ASHRAE Winter Meeting, Orlando, FL (US), 02/05/2005--02/09/2005; Other Information: PBD: 1 Feb 2004
- Country of Publication:
- United States
- Language:
- English
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