Presented at: Kingsley’s Woolloomooloo Presented by: Ben Pearson & Dan Butt Date: 8 August 2011 Energy Efficiency for Commercial Kitchens
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Work book 1 / Session 1 Funding Support This project has been supported by the NSW Government as part of the Energy Efficiency Training Program – visit savepower.nsw.gov.au
SESSION 1 Kitchen Exhaust Basics
Work book 1 / Session 1 Kitchen Exhaust 1.Kitchen Ventilation Fundamentals 2.Controls 3.Optimization
Work book 1 / Session 1 Kitchen Exhaust Basics Package Air Handler Dedicated Kitchen Make-up Air Unit Exhaust Fan 5,000 m 3 /h 10,000 m 3 /h
Work book 1 / Session 1 Kitchen Exhaust Operation 16 hrs / Day 12 hrs /Day Average Fan Power (kW) 14 Annual Fan Energy (kWh)80,64060,480 Annual Operating Cost ($)13,70910,282 Manual Control Hours of Operation Assume operation 360 days per year Electricity cost $0.17Kwh Cost Saving $3,427 per annum Cost Saving $3,427 per annum OR 100 days extra hood use OR 100 days extra hood use
Work book 1 / Session 1 Push Back Your Appliances Kitchen Exhaust
Work book 1 / Session 1 Maximum Overhang (At least 150mm) Close the Gap Kitchen Exhaust
Work book 1 / Session 1 Kitchen Exhaust Centre Heavy Duty Appliances
Work book 1 / Session 1 Add Side Panels Kitchen Exhaust
Work book 1 / Session 1 Kitchen Exhaust Greasy ceiling tiles are a sure sign of spillage The Cause?
Work book 1 / Session 1 Kitchen Exhaust 4-way diffuser in front of the hood!
Work book 1 / Session 1 Kitchen Exhaust Research confirms heat spillage!
Work book 1 / Session 1 Kitchen Exhaust Thermal Plume Spillage Exhaust Hood Schlieren Optical Image
Kitchen Temperatures (NASA: A Compendium of Human Responses to the Aerospace Environment) When temperatures increase from 24 o C to 30 o C staff productivity decreases by over 20% Work accuracy was found to decrease by as much as 40% at 30 o C Increases in work environment temperatures reduce the productivity and accuracy of staff output
Work book 1 / Session 1 Kitchen Exhaust Performance Tips 1.Push appliances back 2.Centre heavy duty appliances 3.Add side panels 4.Reconfigure make-up air diffusers
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