CEC PRESENTATION

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CEC PRESENTATION

• Presented by
• Barry R. Brooks, PE
• Indirect Evaporative Technology
• P.O.Box 1925
• Diamond Springs, CA 95619
• [phone]
• brbrooks_at_internet49.com

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CEC PRESENTATION - Topics

• An indirect evaporative pre cooling kit for air
  cooled condensers on residential, small business
  agriculture, and public buildings
• Lessons learned from existing systems
• Status of development and marketing efforts
• Developing a state wide strategy for
  commercialization
• CECs potential involvement

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IntroductionIn California,

• The cause of power shortages during the summer
  results from consumer demand, and thus, from
  continuous operation of air cooled condensers
  during peak temperature periods.
• Refrigerant based air cooled A/C systems will
• continue to be the predominate method of
  cooling in the residential and small business
  market for the next 20 years.

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Why this cause exists with air cooled refrigerant
A/C systems

• Efficiency drops rapidly as temperatures rise
• Improperly sized condensers
• Improperly charged systems
• Condensers located in hot micro climates
• 4-6 pm start ups
• Low SEER systems still in market
• Minimal energy conservation and maintenance
  efforts by customers

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The solution according to I.E.T.

• If we cant eliminate them improve them
• The most effective way to reduce wattage
  consumption in an air cooled condenser, and to
  normalize conditions affecting performance, is to
  provide the condenser optimum operating
  conditions by creating a cool, dry micro climate
  around the condenser coils,
• or, stated another way,
• Install a CorCool indirect evaporative pre
  cooler kit around the A/C unit. Market it as
  CorCoolCCS

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Variables Pre cooler impactduring peak
temperature periods

• A/C unit sizing
• SEER rating
• A/C unit age
• A/C unit location
• Improper charging
• Climate zone
• Micro climates
• Air flow rates

• Solar thermal gain
• Duct sizing leakage
• Latent heat
• Space attic fans
• Air infiltration
• Occupancy
• Filter cleanliness
• Thermostat setting

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What is CorCool

• CorCool is a patented indirect evaporative heat
  exchanger using commercially available cut sheet
  stock in varying thickness and plate sizes to
  create optimum HT configurations.
• CorCool can be applied to air and/or water
  cooling in a very compact system
• Flow rates to 50,000 cfm are possible
• Other patents are pending
• Long lasting (gt15 Years)

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Cut drawing of CorCool
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How CorCool IHX differs as it relates to A/C pre
coolers

• Direct adiabatic cooling vs. indirects
• Damage to condenser from mineral carryover
• Cellulose pad replacement required
• Possible freezing of indoor cooling coil
• CorCool vs. other IHXs
• Highest dry surface area to wet surface area(21)
• Highest surface area per ft³ of HX core
• Least resistance to heat transfer

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So then, what is CorCoolCCS

• It is a system of creating a cool, dry micro
  climate around any air cooled condenser
• Uses a field proven, effective indirect HX
• It is an auxiliary plug-in appliance kit
• It can be installed by anyone qualified in simple
  electrical and plumbing methods
• It can be installed in multiple configurations
• It is made entirely of durable thermoplastics

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CorCoolCCS Drawing
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CorCoolCCS Layout
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CorCoolCCS applications

• Split A/C or heat pump condensing systems
• Packaged roof top units
• Economizer cycle air cooling
• Refrigeration air cooled condensers
• Make up air tempering for kitchens and other
  ventilation applications
• Night sky water cooling for hydronics and thermal
  mass cooling

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What CorCoolCCS does

• Maintains compressor suction temperatures near
  40 F regardless of ambient conditions or
  correctness of charge
• Reduces condenser wattage consumption by up to
  60 in some climate zones
• Extends life of condenser
• Keeps condenser coils cleaner
• Reduces condenser noise
• Reduces condenser wattage when not in use

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What CorCoolCCS doesnt do

• Void any warranties on A/C system
• Increase amp draw on existing wire
• Corrode condenser fins
• Impede air flow to condenser coils
• Reduce capacity of A/C system
• Prevent A/C system from operating
• Cause indoor coil freezing

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Increase SEER vs CorCoolCCS

• Estimated monthly reduction in kwh.
• 10 to 13 SEER 240 kwh
• 13 to 18 SEER 165 kwh
• Estimated monthly reduction in kwh using
  CorCoolCCS on existing.
• 10 SEER system 540 kwh
• 13 SEER system 450 kwh
• Note Based on 105 F ambient 4 ton unit
• Note Based on 15 less run mins per hr over 12
  hrs

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Most significant wattage reduction methods (BOOM)

• Replace single pane windows - 8,000 - 10 year
  ROI
• Replace low SEER A/C with 13 SEER - 4,200 7
  year ROI
• Installation of an 2 stage evaporative cooler
  1,500-3,500 3 year ROI
• Install CorCoolCCS - 1,500 1 to 2 year ROI
  (Rebates tbd should be gt600)

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Local code/UL requirements

• San Diego Co. chief inspectors reviewed
  CorCoolCCS for installation requirements
• Separate 10 amp 3R rated fuse box tapped from
  existing 30 amp fuse box (220v) at wire inlet
• Rain protected single gang box plug receptacle
• All UL approved/recognized components
• Follows National Electric Code standards
• No overall system UL requirements because it is a
  outdoor plug-in auxiliary appliance kit

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CorCoolCCS controls

• Dependent
• Signal from thermostat cooling demand signal
  through 220v relay with 24v coil (Mechanical
  contractor only)
• Independent
• Outdoor thermostat or timer (Mechanical
  contractor, owner, or handyman installed)

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CorCoolCCS components

• CorCool indirect heat exchanger with five years
  of successful field operation
• Condenser fan motor has a service factor of 1.00
  and sealed ball bearings
• Proven evaporative cooler water pump
• Serviceable water nozzles
• All readily available from local suppliers
• SmartFlow hard water removal system

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Water conditioning

• Same as any evaporative system, however, there is
  no pad replacement
• Stainless brackets - no chemical reaction
• Removal of highest concentration of mineral
• Time release mineral control with biocide
• Means of adding mild acid such as white vinegar,
  CLR, etc. conveniently at top of pre cooler
• Easily accessible drains and control valves

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In summary, the advantages..A lot more bang for
your rebate buck

• Highest ROI of typical wattage reduction methods
• Twice the wattage reduction than upgrading to 13
  SEER
• Does not encumber the A/C system
• Simple to manufacture, install, control, and
  maintain
• 15 year limited warranty

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Overall advantages to California and utility
customers

• Reduces condenser size requirements
• Reduces solar size requirements
• More cost effective for lower to moderate income
  families
• Increases family discretionary income
• Reduces small business overhead
• Creates CA jobs
• Creates higher tax base

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Our initial target market

• Residential
• gt 1,800 FT² (Hot micro climate location)
• Solar (Reducing first costs)
• Noise reduction (Unwanted location)
• 3.5 5 tons ( or lt 12 SEER)
• Southern CA (Longer season)
• Business
• Small retail and office
• Restaurants, flower shops, coffee houses

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Commercialization and production

• By Emerging Technologies definition we are in
  pre commercial and promotion phase
• Housings are rotary molded in two colors
• Production will be contracted
• Partnerships with large mechanical contractors
  and manufacturers
• Create new paradigms in marketing, production,
  and distribution

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Barriers to market entry

• Market awareness
• Market and utility perceptions
• Distribution
• Mechanical contractor resistance
• Condenser manufacturer resistance
• Different condenser designs
• Installation training
• Production levels

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Indirect Evaporative Technology (I.E.T.) Barry
R. Brooks

• 40 years product technology development
• Six years nuclear navy (1964-1970)
• BSME Cal Poly, SLO (1972)
• HVAC engineer PE (ID)
• Public Private engineering design (LLNL INL)
• Technology transfer (DOE consultant)
• Environmental technology (McClellan Hill)
• Marketed high end technology to nuclear utilities
• Market entry specialist

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Mark Snyder Associates, Poway
www.marksnyderelectric.com

• 30 years as a electrical contractor
• Leading solar distributor and installer
• Served on White House Council to preserve and
  renovate national infrastructure
• Exclusive distributor of bio diesel
• Developer of hydraulic to electrical conversion
  systems
• Expert in testing, measurement, and sensing

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Whats in the works for I.E.T.C.

• Four stage (3 indirect/1 direct) evap cooler
• Night water cooling HX
• Hybrid condenser
• Combined mineral, biocide, and fungicide time
  release product
• Hybrid water chiller
• Hydronic heat exchanger
• Fuel cell discharge to supply evap process

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The CEC should consider

• Supporting a novel and encompassing method to
  reduce state energy consumption
• Attracting a broader base of consumers with the
  highest ROI for their conservation dollars
• The value of a simple kit that adaptable to all
  A/C systems including wall mounts
• Supporting rebates for this kit method
• Supporting CA based start up manufacturing

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Finally, what the CEC can do

• Let policy and law makers know of CorCoolCCS as
  a viable marketable product developed and
  manufactured in CA
• Support PIER grant for commercialization
• Promote as both a back up and an alternative to
  solar
• Encourage utilities to offer rebates for pre
  cooling systems that are proven reliable