Sustainable Design of a Commercial Building
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Sustainable Design of a Commercial Building

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Design of a sustainable commercial as a part of Sustainable Design Challenge in CEA Fest 2014 at IIT Madras.

Design of a sustainable commercial as a part of Sustainable Design Challenge in CEA Fest 2014 at IIT Madras.

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Sustainable Design of a Commercial Building Sustainable Design of a Commercial Building Presentation Transcript

  • Sustainability Design Challenge Team Chingari Dhruv Gulati Neelotpal Shukla Nijansh Verma
  • The design philosophy and general overview PHILOSOPHY
  • Design Philosophy • Practicality • System design, not component design. The system as a whole should be sustainable and energy efficient. • Efficiency of the design allows for the resolution of all possible issues however, trade-off guidelines have been provided to resolve conflicts.
  • Details about the structure and salient features BUILDING UNIT
  • 8 – House The building units that will be used are 8 Houses, designed by Bjarke Ingels, founding partner of the Bjarke Ingels Group (BIG). Original Design Residential space – 61,000 m2 Retail space – 10,000 m2
  • 8 – House The building units that will be used are 8 Houses, designed by Bjarke Ingels, founding partner of the Bjarke Ingels Group (BIG). Proposed Solution Retail space – 61,000 m2 Office space – 10,000 m2
  • 8 – House Details 10 Floors 3335 Parking: Basement Footprint 1000 2 m Area Available for Rainwater Harvesting 2 m 2000 Total rooftop area for Solar Paneling 2 m
  • Solution Proposal 26 104 10 Large spaces Small spaces 25m X 21m 15m X 5m per floor available per floor available on 3 floors. on 7 floors. Cafeterias/ Lounges Located in the knot of each floor
  • Salient Features • The primary structure has been constructed using a modified concrete mix. A large portion of the fine aggregates in the mix have been substituted by crushed plastics from PET bottles and coconut fibres which are locally available in abundance. • The walls have been constructed with a cavity of 8 cm. in between two layers of concrete. • Solar energy powered street lights. • Pervious concrete pavements.
  • Site plan, sections, floor plans and 3-D models DRAWINGS AND MODELS
  • Site Plan Prevailing wind direction in Chennai during the summer months of June and July is SW. Secondary winds are received from the South or SW direction during the months of March, April and May.
  • Section along length Staggered design which allows for maximum possible daylight penetration
  • Section Along A Wing Retail Spaces Office Spaces Parking
  • Floor Plan – Office Spaces
  • Floor Plan – Retail Spaces
  • 3-D Model – Building
  • 3-D Model Corner Office Space
  • 3-D Model Cafeteria
  • Calculations for natural and artificial lighting LIGHTING
  • Overview • The Small units are present on higher floors where enough sunlight can reach and therefore, 50% of the demand has been met through natural lighting design while the remaining has been met through artificial sources. • Demand from Large units met entirely through artificial sources. • Luminaires use 3M LED Advanced Lights fittings. http://solutions.3m.com/wps/portal/3M/en_US/LEDAdvancedLight/Home/Retail/
  • Artificial Lighting Design procedure mentioned in SP: 32 followed. Establishment of Requirements Large: 500 lux Small (till 8th): 250 lux Small (9th and 10th): 500 lux Luminaire Output Characteristics Power input: 34 W Initial illumination output: 1800 lumens Calculation of Room Indices Large: 11.41 Small: 3.75 Calculation of number of luminaires Large: 228 Small (till 8th): 17 Small (9th and 10th): 34
  • Natural Lighting Design procedure mentioned in IS 2440 – 1975 followed. Establishment of Requirements Small (till 8th): 250 lux Small (9th and 10th): 500 lux Calculation of Daylight Factor Small (till 8th): 3.125 Small (9th and 10th): 6.25 Calculation of Number of Fenestrations Small (till 8th): 2 Small (9th and 10th): 3 Fenestration size of 1.5m X 1.5m and testing point 3m on the horizontal plane at sill height of 1m considered for calculation purposes.
  • Other Features Accent and Egress lighting. Calculations for these not included in the artificial lighting section.
  • Other Features Exterior Light Shelves in Hallways
  • Calculations for heat gain and no. of conditioning units required AIR CONDITIONING
  • Heat Gain The design procedure mentioned in SP: 32 followed.
  • Heat Gain The design procedure mentioned in SP: 32 followed. Solar Heat Gain Artificial Heat Gain 4350 kW 3525.6 kW
  • Heat Gain The design procedure mentioned in SP: 32 followed. Solar Heat Gain Artificial Heat Gain 4350 kW 3525.6 kW Total Heat Gain 7875.6 kW
  • Conditioning Units Bluestar s Modular Outdoor Units IVRF – 16T have been used as the choice of air – conditioning units.
  • Conditioning Units Bluestar s Modular Outdoor Units IVRF – 16T 153540 have been used as the choice of air – conditioning units. for cooling. BTU/h value of
  • Conditioning Units Bluestar s Modular Outdoor Units IVRF – 16T 153540 have been used as the choice of air – conditioning units. for cooling. BTU/h value of No. of units required = 175
  • Sources of energy and embodied energy ENERGY
  • Primary Source Molten Carbonate Fuel Cells that run on digester gas and are capable of producing 700 kW.
  • Primary Source Molten Carbonate 4 units and Fuel Cells that run on digester gas and are 8 working hours, capable of producing total energy produced: 700 kW. 22400 kWh
  • Primary Source Molten Carbonate 4 units and Fuel Cells that run on digester gas and are 8 working hours, capable of producing total energy produced: 700 kW. 22400 kWh Capable of meeting energy demands by itself.
  • Secondary Source Solar Photo Voltaic panelling Total energy produced by 2000 m2 of Solar PV panels operating at 12% efficiency: 1076.4 kWh.
  • Secondary Source Solar Photo Voltaic panelling Total energy produced by 2000 m2 of Solar PV panels operating at 12% efficiency: 1076.4 kWh. Capable of meeting 89% of demand working alongside 3 MCFC units.
  • Secondary Source Solar Photo Voltaic panelling Total energy produced by 2000 m2 of Solar PV panels operating at 12% efficiency: 1076.4 kWh. Capable of meeting 89% of demand working alongside 3 MCFC units. Can be used to provide power to critical systems at all times.
  • Embodied Energy Embodied energy of materials and construction per square foot of construction is specified to be 1640 MBTU/ft2 for office buildings.
  • Embodied Energy Embodied energy of materials and construction per square foot of construction is specified to be 1640 MBTU/ft2 for office buildings. 15% decrease is expected since a large portion of the cement in concrete has been replaced by plastics and coconut fibres.
  • Embodied Energy Embodied energy of materials and construction per square foot of construction is specified to be 1640 MBTU/ft2 for office buildings. 15% decrease is expected since a large portion of the cement in concrete has been replaced by plastics and coconut fibres. The estimated embodied energy of the 8 – House is 1,065,350,560 MBTU.
  • Waste management technology and calculations WASTE MANAGEMENT
  • Liquid Waste Management Assuming a demand of 55 lpcd and 85% conversion to waste, the total waste generated = 56,100 litres/day.
  • Liquid Waste Management Assuming a demand of 55 lpcd and 85% conversion to waste, the total waste generated = Can very easily be met by a product Headworks Integrated Treatment* (HIT) System™ developed by Headworks BIO that has a capacity of 56,100 100,000 litres/day. litres/day. *HIT system is an MBBR.
  • Construction, finishing, servicing costs and comparison COSTS
  • Construction Cost The cost of concrete for casting floor slabs, beams, columns, piles and pile caps is INR 5.45 crores. Approximately 19,000 m3 of concrete used.
  • Construction Cost The cost of concrete for casting floor slabs, beams, columns, piles and pile caps is INR 5.45 crores. Approximately 19,000 m3 of concrete used. Excavation costs for approximately 11,000 m3 of soil is 13.7 lakhs.
  • Coconut Timber Flooring for Office Spaces
  • Versacork™ for Bathroom Flooring
  • Strandwoven™ Timber for Cafeteria Flooring
  • Textura™ Walls
  • Interior Finishing - Cost A net cost of INR 4.3 crores has been incurred in providing finishes to the floors and walls. Space Area (m2) Material Floor 10000 Coconut timber Walls 21528 Textura Unit Cost (INR/m2) Cost (INR) 2250 22500000 475 10225800 Cafeteria 2000 Strandwoven timber 2500 5000000 Washrooms 2500 Versacork 1750 4375000 Total 36028 42100800
  • Infrastructure Cost Item/Facility 3M LED Advanced Lights SGG Planitherm Bluestar IVRF – 16T MCFC Solar PV panels HIT system 4CH Channel CCTV DVR H.264 Network Digital Video Recorder SONY CCD 480 TVL CCTV Dome 24 IR Security Camera Communication Network Miscellaneous Total Nos. Unit Cost Cost 219648 2054 175 4 1075 1 895 1675 76880 1981000 8000 630000 196584960 3440450 13454000 7924000 8600000 630000 250 2950 737500 1000 1 1 900 2500000 10000000 900000 2500000 10000000 244770910 Total cost incurred is INR 24.5 crores. This is 43% of the total project cost.
  • Energy Audit After considering a 65% installation/labour cost, the total cost of the building comes out to be INR 56.6 crores or INR 7965.65 per square meter.
  • Energy Audit After considering a 65% installation/labour cost, the total cost of the building comes out to be INR 56.6 crores or INR 7965.65 per square meter. This is only 40% of the conventional building cost.
  • Energy Audit Lighting 8 - House HVAC Construction Energy Conventional Design Waste Other 0 Unit Lighting 10000 20000 Conventional Design 30000 40000 50000 8 - House % Improvement 7750 2768 64 HVAC 190 190 0 Construction 927 788 15 Energy 262 233 11 Waste 9 9 0 Other 10862 3977 63 Total 20000 7965 60
  • Checklist  Provide office spaces. Required: 20 m2, provided: 60 m2.  Provide cafeterias. Required: 1500 m2,provided: 2000 m2.  Provide gardens. 2 gardens each of 500 m2 have been provided.  Total plot area is 7000 m2. The footprint of the building is 4335 m2. This is marginally over the limit at 61.9%. However, 1000 m2 is in the form of gardens, the concrete footprint of the building is only 47.6% of the plot area.  Provide site plan, floor plan and elevations.  Prepare a 3-D model on software of choice.  Provide energy calculations showing difference in energy.  Include embodied energy in calculations and comparisons.
  • References • http://www.nrel.gov/hydrogen/proj_fc_systems_analysis.html • http://www.bluestarindia.com/products/central-acs/vrf-acs-sys-inverter.asp • http://www.headworksinternational.com/biological-wastewatertreatment/compact-wastewater-treatment.aspx • http://solutions.3m.com/wps/portal/3M/en_US/LEDAdvancedLight/Home/Retail/ • http://www.sustainableflooring.com/ • http://www.thegreenestbuilding.org/ • http://www.calculator.net/concrete-calculator.html
  • Questions? THANK YOU