Philip Pike

1
Chemistry Research Laboratory Energy Management
Performance

• Philip Pike
• Energy Conservation Engineer

2
Facts Figures

• 15,500m² GIA
• Largest lab, third largest building
• Largest boiler capacity
• Largest electricity supply
• Potentially the most energy hungry

3
Electricity - Consumption

• Design estimate 290kWh/m²
• Actual (Feb June) 355kWh/m²
• Old Chemistry Labs 210 - 260kWh/m²
• Biological Sciences 320 - 610kWh/m²

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Electricity Estimated Energy Splits

• Percentage Load (kWh/m²)
• Pumps 3 9
• Fans 43 52
• Cooling 18 125
• Lighting 9 25
• Miscellaneous 25 73
• Lifts 2 6

5
Electricity - Loads

• Average load 628kW
• Maximum load June 1377kW
• Minimum load June 417kW
• Weekday load 800kW
• Weekday night load 450kW
• Weekend day load 660kW

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Electricity Demand June 2004
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Electricity Consumption

• Ventilation fans Labs run longer
• Pumps run constantly
• Chillers constant CW demand
• Lighting (local controls)
• Essential services - 25kW constant

8
Gas

• Design estimate 527kWh/m²
• Actual estimate 395kWh/m²
• Biological Sciences 847kWh/m²

9
Gas Consumption

• Four 1750kW LTHW boilers
• Four 26kW hot water heaters
• No sub-meters
• LTHW on continuously for reheat

10
Water

• Design estimate 72,000m³/yr
• Actual use (Feb June) 42,000m³/yr
• Equates to 2.7m³/m²
• Old chemistry buildings 5.5 10.1m³/m²
• Process cooling water
• Electric vacuum pumps
• High lab water pressure