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14 July 2009 JOHN WHEATLEY COLLEGE EAST END CAMPUS. Figure 5.7. John Wheatley College East End Campus A High Quality BREEAM Excellent Public Building with Environmental and Sustainable Features (6,459 sq m) Built within Budget – Handover 9 March 2007 and Operational 12 March 2007.

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Presentation Transcript
slide1

14 July 2009

JOHN WHEATLEY COLLEGE

EAST END CAMPUS

slide8
John Wheatley College

East End Campus

A High Quality BREEAM Excellent Public Building with Environmental and Sustainable Features (6,459 sq m)

Built within Budget – Handover 9 March 2007 and Operational 12 March 2007

environmental and sustainable features
Environmental and Sustainable Features
  • Rainwater Harvesting and Recycling
  • Biomass Boiler
  • Photo-Voltaic Cells
  • Solar Collectors
  • Air Sourced Heat Pumps
  • ETFE Roof
  • Higher than Required Thermal Insulation
  • Lighting Control Systems
  • Passive Ventilation
delivery team
Delivery Team

Project Manager – Capita Symonds Ltd

Cost Consultant – Doig & Smith

Architect – Aherns Burton and Koralek

Mechanical, Electrical, Structural and Civil Engineers – Buro Happold

Environmental Consultant – Ironside Farrah

Contractor – HBG (now BAM) Construction Ltd

costs
Costs

Project Cost £15m

Building Contract £9.1m

FF&E £800k

Building Cost £1,409 per sq m

Project Cost £2,183 per sq m

Sustainable Features - 3.11% of Project Cost

Structural Funds (ERDF) £2,818,47919% of Project Cost

slide12

Sunpath Diagram

Prevailing Winds

Street noise and pollution

The site is very

exposed on the South

and East aspects

Site Environmental Microclimate

slide13

Sunpath Diagram

Prevailing Winds

The site is very

exposed on the South

and East aspects

Site Environmental Microclimate

slide14

Double Glazing

  • For South Façade light transmittence of 0.6 or less or 1m overhang
  • Low “E” coating to reduce heat loss
  • Top and bottom opening lights preferable (minimum 125mm)
  • Trickle vent to frame
  • High performance seals

Site Environmental Microclimate

Section – Optimum Single Sided Ventilation

slide15

Project

Target

600

500

Annual Energy Consumption (kWh/m2) Typical Practice

400

300

200

100

0

Air-Conditioned Building

Naturally Ventilated Building

Annual Energy Consumption

Target Setting

slide16

A biomass boiler uses waste material or renewable sources e.g. refuse, wood, crops etc to generate useful heat

  • Recommendation for a 100 kW heat-only system to be developed to meet the year round base load for the entire site
  • Woodchip fuel source from off-cuts from the forestry commission
  • 100kW biomass boiler = 0.35GWh of carbon free energy per year for the John Wheatley College

Typical layout of modern biomass fired boiler

Energy and Utilities

Alternative Energy Systems

slide17

Rainwater to Grey Water

Rainwater

Break Tank

Urinal

WC

WC

Cartridge Filter + UV

Solar Powered Pump

Irrigation

Rainwater Retention Tank

Grey Water Retention Tank

Water Conservation

slide18

Roof mounted

solar collectors

Exposed concrete soffits

Good window design

Site Environmental Microclimate

Section - materials

slide19

Biomass Boiler Plant

  • Biomass Boiler Unit
  • Rainwater and Grey Water Recycling
  • Solar collectors for domestic hot water
  • Rainwater and Grey Water Recycling
  • PIR control of:
    • Lighting
    • Security
  • Waste recycling

Solar Energy – Solar Collectors

Energy and Utilities

Alternative Energy Systems

carbon trust review
Carbon Trust Review
  • Carbon Trust reviewed the College’s renewable energy elements and sustainable features
  • Concluded the College had an efficient mix of renewable energy and other sustainable features
  • Carbon Trust estimated largest saving and shortest payback from rainwater recycling
post occupancy evaluation
Post Occupancy Evaluation
  • Now mandatory on new build projects
  • SFC funded project with Cumbernauld, Carnegie, John Wheatley and Queen Margaret University
  • Functional Performance Review
  • Independent BREEAM Assessor appointed early
  • Future building occupants consulted early
slide22

Specify detail

  • Consider secondary effects of equipment
  • Develop a user guide for staff
  • Train staff in building systems
  • Record and monitor utility usage
  • Use energy saving equipment
  • Maintain the building
sustainable accounting
Sustainable Accounting
  • Pilot project
  • Energy Consumption
  • Water Usage
  • Materials and Product Consumption
  • Waste Generation and Disposal
  • Travel and Transport
  • Other Sustainability Initiatives