vietnam’s energy efficiency building blocks: technical ... · reference standards/guidelines...
TRANSCRIPT
![Page 1: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/1.jpg)
Vietnam’s Energy Efficiency Building Blocks: Technical Standards and Guidelines to Support Vietnam’s Building Energy Efficiency Code and Related Policies
MARK HALVERSON, SHA YU, MEREDYDD EVANS, LINH VU
April 25, 2017 1
Pacific Northwest National Laboratory
![Page 2: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/2.jpg)
BackgroundMethodologyReview of reference standards and guidelines in VBEECOptions for referencing international standards and guidelines
Single country approachCase-by-case analysis
Synchronization of OTTV guidelinesRecommendations for developing reference standardsResources
Outline
April 25, 2017 2
![Page 3: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/3.jpg)
Buildings are the Largest Energy Consumer in Vietnam
April 25, 2017 3Source:IEAEnergyStatisticsforNon-OECDCountries(2012edition)
BuildingsarecurrentlythelargestenergyconsumingsectorinVietnam!
The Vietnam Building Energy Efficiency Code (VBEEC), introduced by MOC in 2013, could result in at least 30-40% buildings energy savings, provided good implementation.For VBEEC and other energy efficiency policies, having reference standards and guidelines is critical for ease and consistency of implementation.
![Page 4: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/4.jpg)
Benefits of building energy codes
Reduced energy consumption by approximately 0.5-quadrillion Btu per year by 2015,and 3.5-quadrillionBtu per yearby 2030.
Rising cost savingsmore than $4 billion
per year back inhomeowners’ pockets by 2015, a figure that could rise to over $30 billion per year by 2030
Reduced CO2 emissionsby roughly 3 percent in terms of
the projected national CO2emissions in 2030.
Source:www.energycodes.gov 4April 25, 2017
![Page 5: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/5.jpg)
Building Energy Codes in the U.S.
ASHRAEStandard90.1
InternationalEnergyConservationCode
StateandLocallyAdoptedCodes
April 25, 2017 5Source:www.energycodes.gov
![Page 6: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/6.jpg)
Referenced Standards in Codes
April 25, 2017 6
Amodelcodeestablishedminimumqualityandperformancecriteria.
Thereferencedstandardsareanenforceableextensionofthecode.
IECC2012Chapter5ReferencedStandards
Standardsforbuildingmaterialsandthebuiltenvironmentarealsothefoundationofmostbuildingenergyefficiencypolicies.
![Page 7: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/7.jpg)
Review of Reference Standards and Guidelines in VBEEC
April 25, 2017 7
ExamineVBEECrequirementbyrequirement,toreviewstandardsandguidelinescurrentlybeingreferenced,andtoidentifyrequirementsthatshouldhaveareferencedstandard.
ProviderecommendationsregardingwhichstandardsandguidelinesmightbereferencedandincludedinthenextVBEECversion,andsuggestapproachoptions.
RecommendtoprioritizestandardsthataremostrelevanttoVietnam’sclimate,marketandconstructionpractices(especiallySHGCstandard).
![Page 8: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/8.jpg)
VBEEC currently references a mix of standards/guidelines from different countries
April 25, 2017 8
U.S.
Vietnam
GermanInternational
toberenamed(AHRI)outdated
nolongerexists
VBEECcurrentlyreferencesamixofstandards/guidelinesfromdifferentcountries,manyofwhichareoutdatedornolongerexist.
![Page 9: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/9.jpg)
Reference standards/guidelines could help implement VBEEC
9
Section Topic Comments
2.1.2(1),2.1.2(2)
ExteriorWallUo,max andRoofUo NoreferenceforcalculatingU-factorsforenvelopeassemblieswithmulti-dimensionalheattransfer
2.1.2(3)(b)
OverallThermalTransferValue(OTTV)
No testmethodsforwindowandskylightU-factor(requiredforOTTVcalculation)
2.1.2(3)(c) OverallThermalTransferValue(OTTV)
NodescriptionorguidelinesforOTTVcalculation
2.1.2(4) SolarHeatGainCoefficient(SHGC)andVisibleLightTransmittance(VLT)
NotestmethodsforSHGCandVLT
2.5.2 Electricmotorefficacy Notestmethodforelectricmotorefficacy
2.6.2 Water-heatingequipmentefficacy
Onlysomewaterequipmentshaveteststandard (DIN4702-1),andthisstandard nolongerexists;noteststandardsforotherequipments
2.6.2 HeatPumpWater-heatingequipmentefficacy
Noteststandardforheatpumpwaterheaters
Severalrequirementsaremissingreferencestandards/guidelinesandtestmethods.
![Page 10: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/10.jpg)
Options for Referencing Standards and Guidelines
April 25, 2017 10
Twooptions:-- Singlecountryapproach-- Case-by-caseanalysis
![Page 11: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/11.jpg)
Options for Referencing: Single Country Approach (U.S. examples)
11
Section Topic Suggestions
1.3 NormativeReferences UpdateARIreferencestoAHRI. AddAHRI551/591.ReplaceASHRAE90.1-2001and90.1-2004withASHRAE90.1-2013.
2.1.2(1),2.1.2(2)
ExteriorWallUo,max andRoofUo Add ASTMC1363-11forcalculatingU-factorsforenvelopeassemblieswithmulti-dimensionalheattransfer
2.1.2(3)(b)
OverallThermalTransferValue(OTTV) AddNFRC100-2014forcalculationofwindowandskylightU-factor
2.1.2(3)(c) OverallThermalTransferValue(OTTV) DevelopasingleOTTVguidelineandsoftware
2.1.2(4) SolarHeatGainCoefficient(SHGC)andVisibleLightTransmittance(VLT)
Add NFRC200-2014
2.5.2 Electricmotorefficacy AddNEMAMG-1
2.6.2 Water-heatingequipmentefficacy Add10CFR430SubpartEandANSIZ21.10.3-2014
2.6.2 HeatPumpWater-heatingequipmentefficacy
Add10CFR430SubpartE
![Page 12: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/12.jpg)
Options for Referencing: Case-by-Case Analysis
April 25, 2017 12
Rigor
Climate
Market
DoesVietnamimportalargeshareofconstructionmaterialsinthiscategoryfromagivencountryorregion?
Isthestandardrelevantforatropicalclimate,orforawiderangeofclimaticconditions?
Howrigorousisthestandard?
Alternatively, referencing standards from multiple countries on a case-by-case basis is also a feasible approach.
![Page 13: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/13.jpg)
Options for Referencing: Case-by-Case Analysis (Examples)
April 25, 2017 13
Consideringmarketsharesofconstructionmaterialsandequipments:• Constructionmaterials(cement,tiles,bricks,etc.)aremostlydomesticallyproduced->DevelopVietnamesestandardsforconstructionmaterials.
• ConstructionglassimportsaremostlyfromChinaandASEANcountries->ChineseorASEANstandardsforglazingwouldbemorerelevant.
Consideringclimateconditions:• NFRC100(forratingwindowandskylightU-factors)assumesU.S.climates,whichistypicallycooler->VietnameseversionofNFRC100couldbeuseful.
Consideringrigor:• U.S.andEuropeanstandardsusedifferentmethodsforcalculatingthermaltransmittanceandwouldresultindifferentU-values->Needtoconsiderrobustnessofstandardscasebycase.
![Page 14: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/14.jpg)
Synchronization of OTTV guidelines
14
VBEEC Section 2.1.2(3)(c): “OTTV values are determined using prevailing standards and technical guidelines.”
There are multiple OTTV versions and software being independently developed (VBEEC User Guide, VGBC, VACEE, etc.)
Standardizing a single set of instructions for OTTV calculations and develop a single OTTV software would greatly facilitate VBEEC implementation.
![Page 15: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/15.jpg)
Recommendations on Standards Development
April 25, 2017 15
HighPriority(directly
influencescoolingload)
• IncludeSHGCandVLTratingstandard• UpdateARIreferencestoAHRIreferences• UpdateASHRAEreferencestolatestversion
Mediumpriority(directlyinfluences
envelopeheattransfer,moderateimpacton
cooling)
• IncludewindowandskylightU-factorratingstandard
• DevelopofficialOTTVguideline• DevelopofficialOTTVsoftware
Lowpriority(directly
influenceotherbuildingloads)
• Includeroofandwallassemblytestingstandardsforassembliescontainingmulti-dimensionalheattransfer
• Includetestingstandardforelectricmotorefficacy
• Includetestingstandardforwaterheaterefficacy
GivenVietnam’stropicalclimate,standardsrelatedtocoolingmeasuresneedtobegivenpriority.
![Page 16: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/16.jpg)
April 25, 2017 16
Questions?
Thank you!
![Page 17: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/17.jpg)
Resources
April 25, 2017 17
Vietnam’s Energy Efficiency Building Blocks: Recommended Priorities for Technical Standards and Guidelines to Support Vietnam’s Building Energy Efficiency Code and Related Policies (PNNL-24478).
ANSIZ21.10.3-2014 – Gas Water Heater, Volume 3, Storage, with Input Ratings above 75,000 Btu/h, Circulating and Instantaneous Water Heaters – Available at http://webstore.ansi.org/RecordDetail.aspx?sku=ANSI%20Z21.10.3-2014%2FCSA%204.3-2014&source=google&adgroup=ansi&gclid=CjwKEAjwj9GqBRCRlPram97Xk3ESJADrN7Ieee2fgoNNMINNjMAropb1lpBj4d6dzylccQKIfSCcRBoCinnw_wcB.
![Page 18: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/18.jpg)
Resources
April 25, 2017 18
ASHRAE Standard 90.1-2013 – Energy Standard for Buildings except Low-Rise Residential Buildings. Latest version of Standard 90.1 available in read-only format at https://ashrae.iwrapper.com/ViewOnline/Standard_90.1-2013_I-P.
ASTMC1363-11 - Standard Test Method for the Thermal Performance of Building Assemblies by Means of a Hot Box Apparatus – Available at http://www.astm.org/Standards/C1363.htm.
ENEN 673 Glass in Building – Determination of Thermal Transmittance (U Value) – Calculation Method – Available at http://www.nbn.be/en/catalogue/standard/nbn-en-673-0.
![Page 19: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/19.jpg)
Resources
April 25, 2017 19
AHRI340/360-2007 - Performance Rating of Commercial and Industrial Unitary Air-Conditioning and Heat Pump Equipment – Available at http://www.ahrinet.org/App_Content/ahri/files/standards%20pdfs/ANSI%20standards%20pdfs/ANSI%20AHRI%20Standard%20340-360-2007%20with%20Addenda%201%20and%202.pdf. 365-2009 - Commercial and Industrial Unitary Air-Conditioning Condensing Units – Available at http://www.ahrinet.org/App_Content/ahri/files/standards%20pdfs/ANSI%20standards%20pdfs/ANSI.AHRI_Standard_365_(I-P)-2009.pdf. 550/590-2011 - Performance Rating of Water-Chilling and Heat-Pump Water-Heating Packages Using the Vapor Compression Cycle – Available at http://www.ahrinet.org/App_Content/ahri/files/standards%20pdfs/AHRI%20standards%20pdfs/AHRI%20Standard%20550-590%20(I-P)-2011.pdf. 551/591 (SI) - Performance Rating of Water-Chilling and Heat-Pump Water-Heating Packages Using the Vapor Compression Cycle – Available at http://www.ahrinet.org/App_Content/ahri/files/standards%20pdfs/ANSI%20standards%20pdfs/ANSI.AHRI%20Standard%20551-591%20(SI)%20with%20Addendum%203.pdf.
![Page 20: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/20.jpg)
Resources
April 25, 2017 20
ISOISO 10077-1 Thermal Performance of Windows, Doors and Shutters –Calculation of Thermal Transmittance – Part 1: General – Available at http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=67090.ISO 10077-2 Thermal Performance of Windows, Doors and Shutters –Calculation of Thermal Transmittance – Part 2: Numerical Method for Fames – Available at http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=64995.ISO 15099 Thermal Performance of Windows, Doors and Shading Devices – Detailed Calculations – Available at http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=26425.
![Page 21: Vietnam’s Energy Efficiency Building Blocks: Technical ... · Reference standards/guidelines could help implement VBEEC 9 Section Topic Comments 2.1.2(1), 2.1.2(2) Exterior Wall](https://reader036.vdocument.in/reader036/viewer/2022081517/5d1a77d688c993ad0d8de629/html5/thumbnails/21.jpg)
Resources
April 25, 2017 21
NEMAMG-1-2006 – Motors and Generators – Available at https://www.nema.org/Standards/Pages/Motors-and-Generators.aspx.
NFRCNFRC 100-2014 - Procedure for Determining Fenestration Product U-Factors –Available at http://www.nfrccommunity.org/store/view_product.asp?id=1380591. NFRC 200-2014 - Procedure for Determining Fenestration Product Solar Heat Gain Coefficients and Visible Transmittance at Normal Incidence – Available at http://www.nfrccommunity.org/store/view_product.asp?id=1402116.
U,S, Code of Federal Regulation10 CFR 430 Subpart B, Appendix E - Uniform Test Method for Measuring the Energy Consumption of Water Heaters – Available at http://www.ecfr.gov/cgi-bin/text-idx?SID=563966991ccb5fd100498a238428bf02&mc=true&node=ap10.3.430_127.e&rgn=div9.