Page 61 - Tcexpression2021 - Sept to Dec 2020

Framework Developed for Assessment Results and Findings

After studying the project and interacting with By incorporating passive & active measures, the facility
stakeholders, an iterative process was carried out to could save 49% energy over the ASHRAE baseline.
achieve maximum savings compared to any regular Further, the incorporation of RE resulted in 63% energy
conventional house in the Washington DC area. Based savings.
on this, following Energy Conservation Measures (ECMs)
were suggested to ensure optimisation of the building's
performance without compromising human comfort.

• Wall Insulation • Window SHGC
Envelope • Roof Insulation • Triple glazed
Measures • Window U Value window
• Airtightness

• Daylightning
Lighting • Automatic Shades
Measures • Artificial LPD Figure 3 Results for Eads
Reduction
• Lighting Controls Figure 3 represents the outcome that was achieved and
conveyed to the client for better energy performance.
Other suggested measures for optimising the building
NET Equipment • Energy Star rated will require the adoption of the following measures:
equipment
ZERO Measures • Minimize equipment
internal heat gains An airtight envelope with high R-value for Walls
(R-75), Roof (R-54) and U-Value of 0.051 Btu/sqft hF
& SHGC 0.5.
Efficient Systems
Use of ground source heat pump for heating,
HVAC • YRF cooling and service water heating
Measures • Ground Source
Heat Pump
• ERV/HRV Using pumps with 95% efficiency

50% reduction in lighting power density over
Renewables • Green Power via Solar/Wind ASHRAE baseline
• Service Water Heating by Solar
Use of energy star equipment.

Thus, through this analysis Ecofirst project team
showcased the potential measures that can be taken
Figure 2 Measures pack for optimisation of the building
for energy savings in Multi-family Residential Building
Figure 2 represents the process flow using which the to GreenShape for their client neighbourhood
building was simulated, and energy consumption was development company and the advantages of
estimated. The ECMs pack include: designing building towards net zero. This study will
act as a case/ prototype to the council to further use
Passive Design Strategy for similar Multi-family Residential Buildings in the
◊ Envelope Measures future. This will lead to a more sustainable development
ensuring energy savings, occupant comfort and
Active Design Strategy reduced carbon footprint.

◊ Lighting Measures
◊ Equipment Measures
◊ HVAC Measures (Heating & Cooling)

Renewable Energy using Solar Photovoltaic

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