CANADAS LEGACY

WHAT IS IT WORTH?

DEMAND VENTILATIONFORCOMMERCIAL KITCHENS

COMMERICAL KITCHENVENTILATION WORKSHOPVANDERWESTENRUTHERFORDMANTECON

June 15, 2009

MAIN TOPIC C.K.V

Demand Ventilation

WHAT IS DEMAND VENTILATION?A Simple definition may read as follows:

Under partial cooking loads with no demand from the appliances, exhaust and make up air is reduced to preset acceptable minimum quantities and conversely increased when cooking load and appliance activity dictate.

COST IMPACTSASSOCIATED WITH COMMERCIAL KITCHENS

Over $2 billion per year spent in the United States on energy consumption in commercial kitchens

Transposed per capita that number could equate to over $ billion spent In Canadian kitchens

DEALING WITH THE ISSUES

NFPA 96 Code

ASHRAE

University of Minnesota

Minimum Velocities Reduced

THE SOLUTION

The use of Demand Ventilation

- improves energy efficiency- improves kitchen comfort- improves fire safety- improves occupant health

C.K.V. ANIMATION

PLAY

FEATURES AND BENEFITS

Provides electrical savings of between 6674% on kitchen exhaust and make-up air motorsProvides natural gas savings of between 3842% on dedicated make-up airImproves energy efficiencyImproves fire safetyIncreases the operational life expectancy of exhaust and make-up air fansReduced noise levels - lends to a better working environment

CASE STUDY WESTIN OTTAWA

Energy Savings ReportHeated Transfer/MUA Savings$ 7,547 / yrCooling Load Savings$ 223 / yrMotor Operating Savings$11,113 / yrTotal Savings$18,883 / yrInstalled Cost$38,000Utility Incentive$ 4,000Payback Period1.8 yrs Projected savings are based on the hotels operating hours, HVAC system, cooling load and geographic location.

CASE STUDY SHERATON HAMILTON

Energy Savings ReportHeated Transfer/MUA Savings$ 5,414 / yrCooling Load Savings$ 149 / yrMotor Operating Savings$ 1,749 / yrTotal Savings$ 7,311 / yrInstalled Cost$15,341Utility Incentive$ 1,500Payback Period1.9 yrs Projected savings are based on the hotels operating hours, HVAC system, cooling load and geographic location.

CASE STUDY RENFREW HOSPITAL

Energy Savings ReportHeated Transfer/MUA Savings$ 5,163 / yrCooling Load Savings$ 70 / yrMotor Operating Savings$ 3,600 / yrTotal Savings$ 8,833 / yrInstalled Cost$14,682Utility Incentive$ 1,500Payback Period1.5 yrs Projected savings are based on the hotels operating hours, HVAC system, cooling load and geographic location.

FINALLY

It is important to note that currently government utilities and industry are working tirelessly at providing incentive rebates for the implementation and installation of Demand Ventilation in commercial kitchens.

An example of this can be seen with Enbridge Gas and Union Gas both providing cash incentives.

Q & A