Energy Recovery Technologies

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Energy Recovery Technologies

• Eric Van Uytfanck, Eng

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Agenda

• Market Drivers
• Standards Codes
• Air to Air heat exchangers
• ARI-1060
• Conclusion and Questions

3
Market Drivers for Energy Recovery

• Rising Energy Costs
• Indoor Air Quality
• Mold
• VOCs
• Temperature Humidity
• Liability
• Standards Codes

4
Standards Codes

• ASHRAE Standard 62.1
• ASHRAE Standard 90.1
• ARI Standard 1060
• ARI Guideline V
• EPACT
• LEED / LEED for Schools
• more

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IAQ and Energy Conservation
ASHRAE 62 Objective Provide Outside air to
resolve IAQ problems increase energy consumption
ASHRAE 90.1 Objective reduce energy consumption
to support world-side sustainabilty
Energy Recovery technology is the solution
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Outside Air Requirements Stnd 62
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Addendum a humidity control

• Standard 62
• Addendum a humidity control

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Interaction of Relative Humidity with Pollutant
Sources
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Standard 62-2004 Addendum Y
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ASHRAE Standard 90.1-2004
Revision to standard should produce source energy
savings of 20 over the previous 1989 version
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Energy Recovery 90.1
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90.1 Climatic Zones
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Future Changes to 90.1?

• Short term- changes going out for public review
• Strong potential to be integrated into 2008
  Standard

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ASHRAE Proposed Standard 189P

• Uses 90.1-2007 as a baseline (LEED uses 90.1-2004
  without addenda)
• 189.1P requires a 30 reduction in energy over
  90.1-2007
• 189.1P requires 30 more airflow than currently
  mandated for offices and classrooms by 62.1-2007
• Many other provisions for Acoustics, IAQ
  management, on site power generation etc

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USGBC LEED

• Leadership in Energy Environmental Design
• LEED provides a definition for green buildings
• It is a market-based standard to distinguish and
  promote sustainability
• It is a tool to introduce, promote and guide
  comprehensive and integrated building design
• The LEED green building rating system is a
  voluntary, consensus based, market driven, and
  building rating system based on existing proven
  technology.

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Transforming the MarketBetter Buildings Better
Performance
LEED Generation 25
of Buildings
Standards-Regulations-Codes
Accredited
The Majority
Silver
Gold
Platinum
Green Standards
Source USGBC
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LEED Certification Points

• Building Rating system is based upon the
  following points system
• Certified 26 to 32
• Silver 33 to 38
• Gold 39 to 51
• Platinum More than 51
• There are 69 points available.
• It is impossible to receive all 69 points on a
  project as some points work against others. There
  are overlaps of some points, and other points are
  influenced by the type of construction, existing
  building or new construction.

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LEED PointsWhere Energy Recovery Helps In
Earning Points

• Point Categories
• Sustainable Sites 14
• Water Efficiency 5
• Energy and Atmosphere 17
• Materials and Resources 13
• Indoor Environmental Quality 15
• Innovation Design Process 5

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Energy and AtmosphereOptimize Energy Performance

• After reaching the minimum energy requirements
  established by ASHRAE Standards 90.1 while
  achieving ZERO use of CFC-based refrigerants,
• LEED points may be obtained by reducing the
  buildings energy consumption.

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Energy and AtmosphereMeasurement Verification

• To obtain points, equipment performance must be
  verified.
• Large claims in energy savings must be proven.
• Example
• 50 Energy Savings 8 LEED Points
• ARI Certified Products Proven
  PerformanceAccepted Proof
• Demand The ARI Standard 1060 Certification Label

ARI 1060
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Ashrae Meeting February 2008
Plate heat exchangers Sensible 50 70 Latent ?
Thermogain / Heat Pipes Sensible 45 - 50
Heat Wheels 65 80 Total Eff.
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Air-to-Air Plate Exchangers

• Sensible Efficiencies 50 - 70
• Available Materials on the Marlet Aluminium,
  Polypropylene, Stainless, Coated Aluminum and
  also Polymeric Membrane (paper)
• Aluminium, Polypropylene, Stainless Sensible
  Heat exchangers
• Polymeric Membrane Sensible Latent exchange
  (Latent Eff. 50)
• Most of these are available with ARI-1060
  certification

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Thermogain / Heat Pipe Heat Exchangers

• How does it work ?
• Sensible Eff. 45 - 50
• Process Applications 0 contamination
• Many construction available on Market
• Available with ARI-1060 certification

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Total Energy Wheels

• Total Efficiencies 65 - 80 (Sensible Latent)
• Latent heat transfer made through Dessicants
• Molecular sieve More selective
• Silica Gel Slightly more efficient
• Many available wheels are ARI-1060 certified, but
  not all

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Heat wheels Contamination???

• 3 main factors to consider
• Type de dessicant
• Purge
• Fan positions

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Applying ERV technology into your designs

• How do I select the right technology ?
• How do I ensure I am getting the energy savings?
• How can I be confident that I am giving my
  customer the calculated savings?
• How can I compare performance with various
  technologies?
• How I compare one technology to another?

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Selecting the Right Technology

• Consider the application
• Source control or dilution control?
• If source control, EATR is important
• Geographic location
• Demands for dehumidifying outdoor air in summer?
• Need for frost control in winter?
• Conditioned space requirements
• How is outside air introduced into the system?
• Humidification in winter?
• Conditioning space for summer?
• How am I am managing free cooling opportunities
• What technologies are you comfortable with, or
  are your customers demanding?

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ARI-1060 Certification

• Since 50 years, ARI logo stands for validated
  performances
• The only independant certification program in
  North America for Energy Recovery Equipment
• ARI proceeds to annual verifications with
  companies part of the certification program
• Role of ARI
• Information, Verification, Protection

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ARI on-line directory
www.aridirectory.org/ari/applied.html
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ARI-1060 Certification
Participants to Program Airotor, Llc
(C) Airxchange, Inc. (C) Dais Analytic
Corporation) (C) Desiccant Rotors International
(C) Heatex America (C) Innergytech, Inc.
(C) Lossnay Novelaire Technologies (C) Renewaire,
LLC (C,p) REcovery Air LTD Venmar CES (C,P)
Aaon, Inc. (P) Applied Air (P) Bard Manufacturing
Company (P) Cannon Fabrications (P) Carrier
Corporation (P) Greenheck Fan Corporation
(P) Lennox Industries, Inc. (P) Loren Cook
Company (P) Micrometl (P) Reznor (P) Rooftop
Systems, Inc. (P) Thybar Corporation (P) Trane
(P) York, Unitary Products Group (P)

• ARI 1060 Certification Program
• Open to All Manufacturers
• Tests Performed by Independant Laboratory
• Product Data Manuals from Participating
  Manufacturers are Verified by Tests on Equipment
• Specifying ARI 1060 Certification is Protecting
  your Investment
• Who is Certified ?

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ARI-1060 Certification
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ARI-1060 Certification
OACF Outside Air Correction Factor Factor By
Which Station 1 CFM Must Be Boosted to Obtain
Required CFM At Station 2
EATR Exhaust Air Transfer Ratio i.e.
Proportion of CFM That is Transferred from
Station 3 to Station 2 (Cross Contamination).
HX
HX
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Certification ARI 1060
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(No Transcript)
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On-line Certification Directory
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Conclusion

• ASHRAE LEED are taking a dominant role in
  increased energy efficiency
• Market is driving to full commercialization of
  energy recovery technology
• Educate yourself on energy recovery, compare
  technologies with ARI-1060
• Provide your customer with proper IAQ levels,
  while supporting the world-wide ASHRAE
  sustainability effort apply energy recovery
  technology!
• Ensure your design is safe-guarded !
• Specify ARI Certification when it comes to energy
  recovery
• Demand the ARI Standard 1060 Certification Seal

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Questions ?
Thank you for inviting me.