Download to read offline
Uploaded bySustainableEnergyAut
DEAP software update – cooling and publishing BERs in DEAP
The event covered updates on cooling calculations in domestic Building Energy Ratings (BER) and DEAP4 inputs, highlighting the incorporation of cooling systems into energy assessments. Key changes include the need to account for cooling systems in BER publications for new dwellings starting September 2023, and improvements in DEAP4 interface for managing these calculations. The document outlines cooling system types, related regulations, and the process for documenting these changes in energy performance assessments.
More Related Content
Similar to DEAP software update – cooling and publishing BERs in DEAP
DEAP software update – cooling and publishing BERs in DEAP
- 2. This event isbeing recorded WebEx Housekeeping Slide 2 www.seai.ie Attendees are muted with cameras off Questions submitted by clicking Q&A bubble Questions will be answered at end of event An FAQ will be created from all questions submitted and shared A recording and slides will be distributed after the event
- 3. Including BER publicationprocess and other DEAP4 interface changes. April 26th 2022 Antonella Uras David Bevan Marcin Badurek Cooling calculations in Domestic BER and DEAP4 inputs.
- 4. Speaker Antonella Uras Cooling calculationsin Domestic BER
- 5. • Primary energyand CO2 emissions from cooling equipment • Required by the EPBD “The energy performance certificate should also provide information about the actual impact of heating and cooling on the energy needs of the building, on its primary energy consumption and on its carbon dioxide emissions.” • Already present in Non-Domestic (SBEM) • Risk of overheating depending on design Air-tightness Heat gains (e.g. uninsulated DHW pipes, etc) • Improved design rather than air-conditioning Cross-ventilation Windows free area Orientation Glazing Shading Thermal mass MV Cooling calculations in Domestic BER - Background 5 www.seai.ie Source: SEAI Energy in the Residential Sector
- 6. • Air-conditioning installationsstill uncommon in dwellings • Avoiding multiple inputs • Existing information, data and calculations • Summer months (Jun-Aug) • Assumes house is cooled intermittently (6 hours a day) • Monthly calculations Heat loss rate Internal gains Space cooling load • Energy for cooling based on SEER* • 𝑆𝐸𝐸𝑅 = 𝐶𝑜𝑜𝑙𝑖𝑛𝑔 𝑜𝑢𝑡𝑝𝑢𝑡 𝑜𝑓 𝑎𝑖𝑟 𝑐𝑜𝑛𝑑𝑖𝑡𝑖𝑜𝑛𝑖𝑛𝑔 𝑒𝑞𝑢𝑖𝑝𝑚𝑒𝑛𝑡 𝐸𝑛𝑒𝑟𝑔𝑦 𝑖𝑛𝑝𝑢𝑡 *As provided in Ecodesign Product Information for air conditioners Cooling calculations in Domestic BER - Outline 6 www.seai.ie Source: The Guardian 2020
- 7. Cooling calculations inDomestic BER - Examples 7 www.seai.ie Dwelling example Impact on BER result (additional kWh/m2/yr) after adding cooling system SEER = 2.16 SEER = 5.1 A2 rated newly built bungalow, well insulated, very good air tightness, MHRV, south facing windows 1.81 0.77 C3 rated regular mid floor apartment, built 1998 0.82 0.35 F rated pre-1977 uninsulated semi-detached house, poor air tightness 0.05 0.02
- 8. Cooling calculations inDomestic BER - Timeline 8 www.seai.ie Date 1st March 2022 Notification of upcoming changes to the DEAP methodology Publication of draft DEAP Manual and Survey updates Publication of draft DEAP Workbook 4th May 2022 DEAP methodology software is updated to include cooling Updates to DEAP Manual, Survey and DEAP Workbook published From this date, BER assessments can be published with cooling From this date, DEAP can be used to check the impact of cooling on BERs and Part L indicators 23rd September 2023 From this date on, when cooling is present, it must be accounted for when publishing BERs Where the construction of a new dwelling will be completed after this date, cooling, if present, will need to be included in the Part L compliance report.
- 9. Speaker David Bevan Identification ofCooling Systems & Documentation
- 10. DEAP4 changes -overview 10 www.seai.ie Identification of “–to-Air” systems System types that can provide cooling Non-default data - documentation
- 11. • …-to-Air heatpump systems • e.g. an air-to-air heat pump • These systems are assumed to be reversible and capable of providing Cooling • Cooling can only be discounted for these systems where, • Designer/Installer Form states that there is no Cooling function and, • The Designer/Installer specifies how Cooling has been disabled • See DEAP Manual for more detail Systems capable of Cooling 11 www.seai.ie
- 12. • …-to-Water heatpump systems • i.e. systems using radiators and/or underfloor to distribute heat • For these systems it is assumed there is no Cooling function • Cooling should be included for these systems where, • Designer/Installer Form states that there is a Cooling function • See DEAP Manual for more detail Systems capable of Cooling 12 www.seai.ie
- 13. • Multi-split system •One external unit • Multiple internal units Identification of “…–to-Air” Systems 13 www.seai.ie
- 14. • External unit •Drawing heat from the surrounding air (for heating) • Emitting heat to the surrounding air (cooling) • Model identification important Identification of “…–to-Air” Systems 14 www.seai.ie
- 15. • Wall unit– usually located high on the wall • Capable of producing warm or cold air, depending on the season • Fans to distribute the air efficiently Identification of “–to-Air” Systems – Indoor units 15 www.seai.ie
- 16. • Wall unit– usually located low on the wall, like a radiator • Capable of producing warm or cold air, depending on the season • Fans to distribute the air efficiently Identification of “–to-Air” Systems – Indoor units 16 www.seai.ie
- 17. • Cassette unit–located in the ceiling • Very common in non-domestic scenarios – offices, shops – but can be found in dwellings too • Capable of producing warm or cold air, depending on the season • Fans to distribute the air efficiently Identification of “–to-Air” Systems – Indoor units 17 www.seai.ie
- 18. • Example 1 Air-to-airas main heating system • External heat pump unit • Heating/cooling is being supplied to the dwelling • Multiple internal units • Providing heating/cooling to individual rooms • No evidence of a wet system • No radiators present • None of the pipework associated with underfloor heating Identification of “–to-Air” Systems 18 www.seai.ie
- 19. • Example 2 Wetsystem + Air-to-Air system • An existing dwelling with a wet-system, e.g. boiler/heat pump heating radiators, and an air- conditioning blower unit in one or more rooms, e.g. • This is usually in a retrofit or an extension and may be intended to provide heating to a room(s) • In this scenario, the unit can provide cooling, which would now be accounted for in the BER Identification of “–to-Air” Systems 19 www.seai.ie
- 20. • The systemsconsidered in DEAP are covered by EU Regulation 206/2012: Ecodesign requirements for air conditioners and comfort fans, EU Regulation 626/2011: Energy labelling of air conditioners • The data required is the Seasonal Energy Efficiency Ratio of the cooling system - SEER. • Manufacturers/Suppliers must provide the following when placing the product on the market • Energy Label • Product Fiche • Technical Data Non-default Data for Cooling Systems 20 www.seai.ie
- 21. • States Manufacturer& Model • States SEER • References EU Regulation 626/2011 Energy Label 21 www.seai.ie
- 22. • Normal rulesapply regarding Ecodesign data, e.g. Ecodesign data must reference the relevant EU Regulation, e.g. 626/2011 Product Fiche 22 www.seai.ie
- 23. Speaker Marcin Badurek Cooling Calculationentries in DEAP4 Including BER publication process and other DEAP4 interface changes.
- 24. DEAP4 changes -overview 24 www.seai.ie Changes to the BER publication process Cooling Calculation in DEAP4 Other changes to the DEAP4 interface
- 25. Cooling calculation in DEAP4 -Can be added as a heat pump function - Can be added as a separate system 25
- 26. 26 www.seai.ie New “Cooling”icon added
- 27. 27 www.seai.ie Cooling systemadded as a heat pump function
- 28. 28 www.seai.ie Seasonal EnergyEfficiency Ratio default value for “-to Air” heat pumps
- 29. 29 www.seai.ie “Provides Cooling”check box
- 30.
- 31. 31 www.seai.ie Cooling addedas a separate system
- 32. 32 www.seai.ie Cooling addedas a separate system – delete item
- 33. 33 www.seai.ie Cooling inthe Results
- 34. 34 www.seai.ie Cooling systemin the Dwelling Report
- 35.
- 36. Speaker Marcin Badurek Cooling Calculationentries in DEAP4 Including BER publication process and other DEAP4 interface changes.
- 37. Changes to theBER publication process - No need to log in to NAS - BER published directly from DEAP4 37
- 38. 38 www.seai.ie BER Publicationprocess - overview
- 39. 39 www.seai.ie Survey progress– 78% is required to unlock the AR
- 40. 40 www.seai.ie Evidence added– progress to 89%
- 41. 41 www.seai.ie BER Validation& Send to NAS. Status changed to “NYP”
- 42. 42 www.seai.ie “NYP” Statuscould be reverted back to “In Progress” if needed
- 43.
- 44.
- 45.
- 46.
- 47. Download AR &BER Cert 47 www.seai.ie
- 48. 48 www.seai.ie Allowing automaticdownloads of multiple files in Chrome
- 49. 49 www.seai.ie Allowing automaticdownloads through Chrome settings: Chrome settings -> Privacy and security -> Site settings, scroll down to Additional permissions -> Automatic downloads
- 50.
- 51. 51 www.seai.ie Changes inNAS – “Proceed” and “Discard” buttons removed
- 52. Other changes toDEAP4 interface - View Assessment icon removed - Assessment moved to Results - “Include in compliance” check box added for floors and roofs - MPRN and BER shown on the top ribbon - “Remove all evidence” function added - Changes to survey status 52
- 53. 53 www.seai.ie Assessment movedto Results
- 54. 54 www.seai.ie Assessment movedto Results
- 55. 55 www.seai.ie Assessment movedto Results
- 56. 56 www.seai.ie “Include incompliance” check box for roofs and floors
- 57. 57 www.seai.ie MPRN andBER number added to the top ribbon
- 58. 58 www.seai.ie Delete multipleor all items from the Evidence
- 59. 59 www.seai.ie Changes tosurvey status “In Progress” – can edit survey. “NYP”, “Published”, “Revoked” or “Withdrawn” – can copy survey
- 60.
Editor's Notes
- #3 Aine