Even Better than the Best Building Ever?

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Even Better than the Best Building Ever? The
ZICER and Elizabeth Fry Low Energy Buildings
Keith Tovey M.A., PhD, CEng, MICE Energy
Science Director Low Carbon Innovation
Centre School of Environmental Sciences
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Main Energy Conservation Projects at UEA

• Constable Terrace/ Nelson Court Student
  Residences
• Elizabeth Fry Building
• Combined Heat and Power
• School of Medicine
• ZICER Building
• The Future
• Absorption Chilling

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The Elizabeth Fry Building


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The Elizabeth Fry Building

• Termodeck Construction
• Air is circulated through whole fabric of
  building
• Heated using a normal domestic heating boiler (24
  kW)
• No heat supply needed at temperatures as cool as
  9oC
• Triple glazing with Low Emissivity Glass
  quadruple glazing
• 180 mm insulated cavity
• 300 mm roof insulation
• 100 mm floor insulation
• Air Pressure Test at 50 Pa not to exceed 1.0
  ach
• Actual performance 0.97 ach
• Has deteriorated slightly since 1996
• Uses regenerative Heat Exchangers 85 with heat
  recovery

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Operation of Regenerative Heat Exchangers
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Energy Consumption in Elizabeth Fry
The performance of the building has improved with
time
Heating provided by domestic sized
boilers. Energy requirement 20 of good practice
for Academic Buildings.
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Elizabeth Fry Carbon Dioxide Emissions and User
Satisfaction
96
Elizabeth Fry User Satisfaction
thermal comfort 28 air quality
36 lighting 25 noise
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An energy efficient building reduces carbon
dioxide AND is a better building to work in.
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The ZICER Building
Zuckerman Institute for Connective Environmental
Research

• Follows the tradition of the Elizabeth Fry
  Building
• Uses Termodeck construction
• Draws heat from University Heating Main
• Has a 34 kW array of Photo Voltaic cells on
  top floor and roof

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ZICER Construction
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ZICER Construction
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ZICER Construction
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Installation of Solar Panels
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Projected Performance of ZICER
Elizabeth Fry performance has improved over
years. ZICER will be better and less than 70 of
emissions of mid 90s best practice
building Photovoltaic cells will generate 30
kW and save 20 tonnes CO2 per annum.
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Performance of Elizabeth Fry and ZICER
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UEA Combined Heat and Power Scheme
86 Efficient
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UEA CHP Scheme

• Until 1999 most heat for space heating was
  supplied by large boilers
• Primary main temperature 110 120oC
• All electricity imported
• Energy bill was in excess of 1 million per
  year

• Three 1 MWe generators are now installed
• Provide the majority of the electricity for
  the campus
• Export electricity at periods of low demand
• Waste heat is used a primary heat source
• Supplemented by existing boilers
• CHP has reduced that figure by 400 000 per
  year

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CHP Review
Saving in CO2 emissions as a result of CHP -
4824 tonnes CO2 or 31.9 Equivalent to 2680 hot
air balloons. Note UEA expanded during time
and consumption increased so CO2 savings are
really higher than this.
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WEBSITE www.cred-uk.org/