Proposed Deemed Calculator for Commercial Ice Making Equipment

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Proposed Deemed Calculator for Commercial Ice
Making Equipment
June 18, 2002
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Background

• ACEEE estimates that there are 1.2 million
  commercial ice-makers currently in-service in the
  US
• There are between 50,000 75,000 commercial
  ice-makers currently in-service in the PNW
• There are only 5 major manufacturers
• Energy efficiency varies over a wide range

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Background - Continue

• FEMP has set recommended levels of efficiency
  for commercial ice-making equipment
• CEE has proposed a two-tiered efficiency level,
  that differs from FEMP
• We do not have sales weighted efficiency data
  to establish a baseline from which to measure
  savings

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Energy Consumption Rate for Air-Cooled Ice-Making
Heads
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Energy Consumption Rate for Water-Cooled
Ice-Making Heads
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Energy Consumption Rate for Remote Condensing
Ice-Making Heads Air-Cooled
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Energy Consumption Rate for Self-Contained
Ice-Making Heads - Air-Cooled
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Energy Consumption Rate for Self-Contained
Ice-Making Heads Water-Cooled
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Recommendations (1)

• Use Power Curve fit to establish average
  efficiency by ice-maker type and capacity.
• Use Power Curve fit to above average
  efficiency models to establish minimum
  efficiency needed to qualify for CRD
• Use Power Curve fit to below average
  efficiency models to establish baseline
  efficiency compute savings for CRD

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Recommendations (2)

• Adopt Deemed Calculator to determine savings
  and CRD credit for commercial ice-making
  equipment
• Use ARI rating as basis for unit efficiency
  (kWh/100 lbs)
• Use 3,000 hrs/yr (approx. 34 load factor) as
  basis for computing annual savings.