Energy Upgrade and Retrofit Study Summary

Understanding the NE01 building's current state for energy improvements and comfort enhancements. The study aims to drive passive design strategies, engage students and faculty for feedback, and develop an energy strategy to meet ambitious goals. Assessing HVAC systems, lighting, base case energy consumption, thermal comfort levels, and proposing interventions like operable windows, improved window quality, heat recovery, lighting controls, and insulation enhancements.

• Energy Upgrade
• Retrofit Study
• Climate Analysis
• Passive Design
• Comfort Improvements

kia_e Follow

Uploaded on Sep 21, 2024 | 0 Views

Download Presentation

Please find below an Image/Link to download the presentation.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.

Presentation Transcript

1. BCIT NE01 Energy Upgrade and Retrofit Study Result Summary TRANSSOLAR KLIMAENGINEERING

2. Introduction Transsolar Goals for Study: Understand the NE01 building and assess its current state Analyze the climate situation to drive passive design strategies Engage students and faculty for feedback and idea generation through a workshop Investigate potential for comfort improvements in the space and energy reduction Develop an energy strategy to meet the ambitious Factor Four goals TRANSSOLAR KLIMAENGINEERING

3. Building Understanding HVAC System All-air Conditioning System Centralized Air Handling Units Air Recirculation Centralized reheat coils BCIT district heating supply with back-up local gas boilers TRANSSOLAR KLIMAENGINEERING 3

4. Building Understanding Lighting TRANSSOLAR KLIMAENGINEERING 4

5. Creating a Base Case Adjusted Energy Consumption for Comparison Calculated values TRANSSOLAR KLIMAENGINEERING 5

6. Creating a Base Case Load Type Description Current Case Base Case Air Supply Flow Rate Ventilation Control Mix Set Temperature Minimum Outdoor Air Supply Daytime Set Point 1266 m3/hour 8:30 am 9:30 pm 1266 m3/hour 8:00 am 10:30 pm Ventilation 13 C 2 ACH N/A Economizer 100% Outdoor Air 21 C Operative Temp. 21 C Air Temp. Heating Temperature Nighttime Set Point 15 C Air Temp. 15 C Operative Temp. Temperature * Simulated values *without lighting or plug-loads TRANSSOLAR KLIMAENGINEERING 6

7. Building Understanding Current Thermal Comfort Level TRANSSOLAR KLIMAENGINEERING 7

8. Base Case Thermal Comfort Level TRANSSOLAR KLIMAENGINEERING 8

9. Interventions Intervention Affected Area 1 Operable Windows on Fa ade Fa ade 2 Improve Window Quality Fa ade 3 Exhaust Heat Recovery Whole Building 4 Light Redirection Fa ade 5 Lighting Controls Whole Building 6 Light bulb Retrofit Whole Building 7 Separate Conditioning from Ventilation Whole Building System Insulation Enhancement 8 Fa ade 9 Increase Window Area Fa ade 10 Internal Skylight Shading Cafeteria Atrium 11 Instant Hot Water Heaters Core TRANSSOLAR KLIMAENGINEERING 9

10. Intervention Evaluation Evaluation Matrix Fa ade Affected Interventions Intervention Energy Savings Cost Comfort Complexity/Effort Recommended Operable Windows on Small Reduction Medium + Low 1 Fa ade Improve Window Quality Small Reduction Medium + Low 2 Exhaust Heat Recovery Significant Savings Medium 0 High 3 Light Redirection No Savings Low 0/+ Low 5 Lighting Controls Savings Low 0 Low 4 Light bulb Retrofit Savings Low 0/+ Low 4 Separate Conditioning from Significant High + Medium 1 Ventilation System Insulation Enhancement Medium + Medium 2 Increase Window Area on + High + High 5 North Fa ade TRANSSOLAR KLIMAENGINEERING 10

11. Recommendations NE01 Building Upgrade Strategy: 1. Building-Wide Ventilation: Split HVAC with Natural Ventilation 2. Fa ade Improvements 3. Integration of Heat Recovery in Ventilation System 4. Lighting Upgrades 5. Additional Interventions TRANSSOLAR KLIMAENGINEERING 11

12. Recommendations 1. Building-Wide Ventilation: Separation and Natural Ventilation Radiative conditioning system Dedicated outdoor air ventilation system (driven by air quality not heating) Natural Ventilation through installation of operable windows along facade TRANSSOLAR KLIMAENGINEERING 12

13. Night Flushing Effect Transsolar Office Effect of opening windows TRANSSOLAR KLIMAENGINEERING 13

14. Recommendations Thermal Comfort Level With Split HVAC and Natural Ventilation (incl. nighttime flushing) TRANSSOLAR KLIMAENGINEERING 14

15. Recommendations 2. Fa ade Improvements Double Glazed Windows with High Quality Frame Internal Insulation Addition TRANSSOLAR KLIMAENGINEERING 15

16. Recommendations 3. Integration of Heat Recovery in Ventilation System Heat Recovery Installation in Central Air Handling Units Unit-by-Unit Investigation to determine best heat recovery solution TRANSSOLAR KLIMAENGINEERING 16

17. Recommendations Final Thermal Comfort Level TRANSSOLAR KLIMAENGINEERING 17

18. Recommendations 4. Lighting Improvements LED Lighting in common spaces (bathrooms, corridors, etc.) Occupation and Daylight controls in common spaces Vacancy controls in offices and classrooms TRANSSOLAR KLIMAENGINEERING 18

19. 5. Additional Interventions Natural ventilation and shading in cafeteria atrium space Replacement of hot water systems for bathrooms with electrical instantaneous hot water heaters TRANSSOLAR KLIMAENGINEERING 19

20. Recommendations TRANSSOLAR KLIMAENGINEERING 20

21. Recommendations Energy Reduction Potential TRANSSOLAR KLIMAENGINEERING 21

22. Thermal Simulation Weather Data Validation TRANSSOLAR KLIMAENGINEERING 22