Case Studies
Strong ROI for Kitchen Hood Demand-Control Ventilation
Edgewood College had an energy conservation fund with strict technical and payback criteria.The old kitchen HVAC systems in Predolin Humanities Center and Regina Hall were selected for upgrades.The goals were to save energy, reduce noise levels, decrease grease entrapment, and reduce HVAC equipment wear.
“Remarkable! Very, very happy with the outcome. Your guys were awesome. Documentation was also more than expected. Follow-up service has been exceptional and timely. Thank you!”
Nicholas Holmes, HVAC Engineer
Edgewood College
TEL provided engineering, installation, commissioning and O&Ms for conversion of Constant Air Volume (CAV) kitchen hoods to Variable Air Volume (VAV). Installed TEL chip-based kitchen control system whose sensors automatically regulate fan speed based on cooking load, time of day, and hood temperature.
Summary
Industry: Higher Education
Location: Madison, WI
Project Type: Kitchen Hood Upgrade
Incentives: $3,300
Cost $52,120
SPB 3.7 years
Energy Savings: $13,268 / yr
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kWh Savings 50,759
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Therm Savings 13,428
New VAV Systems:
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Door-mounted control panel display
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Temperature sensor installed in the hood exhaust collar
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Room temperature sensor
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IP sensors installed in hoods to detect the presence of smoke and cooking effluent
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VFDs installed on exhaust fans and make-up air units
Auto sash controllers have advanced significantly in recent years but TEL still leads the field...
We have a video showing how the TEL Auto Sash Controller integrates with VAV systems for safe airflow and energy savings of up to 85%.
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