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

Work book 1 / Session 1 Refrigeration: Strip Curtains Reduce Warm Air Infiltration up to 75%

Work book 1 / Session 1 Refrigeration: Strip Curtains Be sure to utilize strip curtains from top to bottom of walk-in entrance No

Work book 1 / Session 1 Strip Curtains

Work book 1 / Session 1 Strip Curtains

Work book 1 / Session 1 Air Curtains Air curtains can’t be tied up or cut off Advantages Create no physical barrier to cool room entry Effectively prevent warm air infiltration Can be switch linked to cool room door to minimise energy use Disadvantage is they are much more expensive to install than strip curtains

Work book 1 / Session 1 Refrigeration Beware the store room!

Work book 1 / Session 1 Freezers: Defrost Cycles Minimize unnecessary defrost cycles 15% of total power consumption is used during defrost cycles Except in cases of high humidity maximum 4 cycles in 24 hours

Defrost: Demand Response (US Department of Energy) Example of a frost sensor that allows for intelligent control of defrost cycles

Work book 1 / Session 1 Ice Machines 1.Keep Lid Closed 2.Regular Maintenance 3.Purchasing Tips

Work book 1 / Session 1 Ice Machines Timers Ice machines are candidates for demand response during peak utility periods Peak Hours 7 am – 9 am 5 pm – 8 pm Shoulder Peak Hours 9 am – 5 pm Peak Days Mon - Fri

Work book 1 / Session 1 Ice Machines A Good Idea!

Work book 1 / Session 1 Ice Machines Condensor Unit Maintenance?

Work book 1 / Session 1 Ice Machine Min. 15 cm clearance

Work book 1 / Session 1 Purchasing Tips 1.Buy a machine with a large storage bin 2.Programmable machines allow you to manage ice making on demand 3.Machines that pre-chill water entering the head consume less energy to create ice Same head with bigger bin = more storage

Work book 1 / Session 1 Refrigeration Tips 1.Keep evaporator and condensor coils clean 2.Make sure doors close properly by maintaining seals and hinges 3.Use Strip or Air curtains to minimise warm air infiltration 4.Use large storage bins and keep lids closed on ice machines