CPA’s air barriers are designed to create a ‘virtual door’ by generating a waterfall of air over an opening and producing a robust seal.  This environmental separation prevents heat loss and the ingress of dirt and flying insects.  Strathmore; owned by AG Barr, installed their air barrier to help maintain the temperature in the warehouse area, save energy and improve staff comfort. After installing the CPA air barrier, Strathmore immediately turned off two 22kW radiant gas heaters whilst maintaining ambient comfort levels. They closely monitor their gas usage with their main KPI being their total kWh per tonne of product. Comparing like for like periods, energy analysis confirmed a reduction in gas use of 3,000 kWh per week, a saving of 30%. The CPA air barrier has helped this national brand to make year on year savings and save over £41,000 in energy costs.

2. • Show you the significant energy savings our technology
achieved for a national brand.
• Explain the benefits of the technology and how it could help
your business.
In this session I will:-
CPA Engineered Solutions Ltd Stand C74

3. CPA Engineered Solutions Ltd Stand C74
What is an Air Barrier?

4. What is an Air Barrier?
CPA Engineered Solutions Ltd Stand C74

5. An Air Barrier
Numbers Quiz
CPA Engineered Solutions Ltd Stand C74

6. 1,237,600
kWh savings over 10 years
CPA Engineered Solutions Ltd Stand C74

7. 228
Tonnes
Co2 Savings over 10 years
CPA Engineered Solutions Ltd Stand C74

8. 62
Tonnes
Carbon Savings over 10 years
CPA Engineered Solutions Ltd Stand C74

9. CPA Engineered Solutions Ltd Stand C74
41,500
GBP
Strathmore Mineral Water saved in energy costs over 10 years

10. The Case Study
CPA Engineered Solutions Ltd Stand C74

11. • A warehouse roller door – in constant use.
• Difficulty in keeping a heated set point temperature in the area especially
during winter.
The Customer’s Challenge
CPA Engineered Solutions Ltd Stand C74

12. The CPA Solution
• We carried out a detailed site survey.
• Installed a US 168 Air Barrier over the doorway.
CPA Engineered Solutions Ltd Stand C74

13. The Outcome
• Two 22 kW radiant gas heaters were immediately turned off
• Reduction in gas use of 3,000 kWh per week
• Staff comfort level increased
• Noticeable difference in the ingress of outside pollutants (dust, other debris)
CPA Engineered Solutions Ltd Stand C74

14. CPA Engineered Solutions Ltd Stand C74
Return on Investment Calculator
Key Parameters Required
Door Height
Door Width
Inside Temperature
% of time the door is open
Hours per week the door is used
Days per week the door is used
Cost of electricity per kWh
Cost of gas per kWh
Average winter wind speed
Average outside winter air temp
Average heating months
Exposure factor
Electrical power of the fan motor(s)
Heating type

15. CPA Engineered Solutions Ltd Stand C74
Return on Investment Calculator
Key Parameters Required (cont..)
Hours of operation
Percentage of year heating season
Hours of heating
Total hours door open
Door area
Temperature differential
Specific heat of dry air
Air density
Heat loss (or continuous heat required to replace)
Cost/Hour

16. CPA Engineered Solutions Ltd Stand C74
Return on Investment Calculator
Energy Lost
Energy Consumed by Air Barrier
Cost of Air Barrier operation
Air Barrier efficiency
Energy Saved
Key Parameters Required (cont..)

17. Energy Saved over 10 years
CPA Engineered Solutions Ltd Stand C74
Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10
£0.070 £0.074 £0.077 £0.081 £0.085 £0.089 £0.094 £0.098 £0.103 £0.109
£0.015 £0.016 £0.017 £0.017 £0.018 £0.019 £0.020 £0.021 £0.022 £0.023
£4,373.20 £4,591.86 £4,821.45 £5,062.53 £5,315.65 £5,581.43 £5,860.51 £6,153.53 £6,461.21 £6,784.27
1.
2.
3.
1. Electricity cost/kWh (5% inflation)
2. Gas cost/kWh
3. Savings/yr. using air barrier

18. Thank You
Any Questions?
Alan Collin CEO
CPA Engineered Solutions Ltd Stand C74