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Development of HSTAT for HVAC Health Status and Control

Award Information

Department of Energy
Award ID:
Program Year/Program:
2003 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Steven Winter Associates, Inc.
61 Washington Street Norwalk, CT -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2003
Title: Development of HSTAT for HVAC Health Status and Control
Agency: DOE
Contract: DE-FG02-03ER83784
Award Amount: $100,000.00


72433S03-I Current residential HVAC systems consume an unnecessary amount of energy due to equipment oversizing, incorrect refrigerant charge, and incorrect air flow. In addition, these systems do not have humidity control, which leads to discomfort or results in more energy use. This project will develop a device (HSTAT) that combines temperature and humidity control with HVAC diagnostics. The device also will reduce equipment cycling and hence energy use. In Phase I, both theoretical and experimental feasibility studies will be conducted. Variable deadband and humidity control strategies will be assessed, HVAC diagnostic methodologies will be identified, and an experimental investigation will determine feasibility. Commercial Applications and Other Benefits as described by awardee: Combining humidity control with HVAC diagnostics should provide significant energy savings and improved comfort. The technology could be applied not only for residential buildings but also for light commercial buildings.

Principal Investigator:

Business Contact:

Small Business Information at Submission:

Steven Winter Associates, Inc.
50 Washington Street Norwalk, CT 06854

Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No