1. Advanced Evaporative Pre-Cooling

2. Association of Energy Engineers
Revolution in
Evaporative Cooling
September 26, 2017
Association of Energy Engineers

3. Jerry Burden Owner, EvaporTech
35+ Years Commercial HVAC
Mechanical contractor
Commercial HVAC services
Sheet metal contractor

4. Jerry Burden Owner, EvaporTech
Industry Leader
Past Pres Mechanical Contractors Assoc
Board Member Tx Plumbing Edu. Council
Industry boards & committees

5. Jerry Burden Owner, EvaporTech
EvaporTech Services, LLC
Exclusive Evaporcool Rep
Authorized turn-key installations
Approved TIPS vendor

6. Glen Rhoden CEM, ATEM Energy Management 22 years K-12 market
Energy Mgr Cypress Fairbanks ISD
Energy & Sustainability Mgr HISD
Asst. Director MEP & Energy Mgmt Round Rock, ISD

7. Glen Rhoden CEM, ATEM Industry Leader Certified Energy Manager
Accredited Texas Energy Manager
Co-founded TEMA
TEMA Board Member & Past Pres.

8. R
EVOLUTION

9. Reduce electrical consumption
In 2011, the Texas Legislature passed Senate Bill 898 amending the Health and Safety Code § to require each political subdivision, institution of higher education, or state agency to establish a goal to reduce electrical consumption by at least five percent each fiscal year for ten years beginning September 1, Each entity must report to the State Energy Conservation Office (SECO) regarding the entity’s efforts to meet the goal, and progress the entity has made.
Senate Bill 898
PROBLEM
Reduce electrical consumption
at least 5%
for 10 years

10. vs. Inefficient Buildings Costs Profits Efficient Buildings

11. Energy efficiency conserves resources
efficiencies
are common
& affordable
but…

12. AIR CONDITIONING
consumes the most
energy
and few
AFFORDABLE
solutions exist to
DRAMATICALLY
improve efficiency

13. There now...wasn’t that simple?
Solution
There now...wasn’t that simple?

14. Evaporative Cooling Technology
REVOLUTION
Efficiency $
+ Rebates =
avings

15. 20° drop in tem- perature reduces compressor and condenser-fan energy usage by
15% - 30%

16. saving
22% on
average

17. Reduces Increases Extends Protects Energy usage Tonnage capability
Peak demand $
Head pressure
Maintenance
Increases
Tonnage capability
System reliability
Extends
Equipment life
Protects
Coils from debris and damage

18. Computerized Controller
Non-Invasive System
Attaches with magnets
Requires no recirculation or drain systems
Computerized Controller
Monitors external temp in real-time
Sprays precise water, only inside frame
Minimizes water usage

19. Computerized Controller (cont’d)
Keeps filter media saturated*
Eliminates water on coils & roof
Filters dirt away from coils
Keeps coils in optimum operation
Alerts user of any problems
* Air-pressure drop thru the filter media is minimal

20. Sample Installation

21. Installation
Before
After

22. Water Piping Schematic

23. Performance Monitoring
Advantages
Quickly confirms system status
Illustrates real-time energy savings
Monitors & checks cooling or refrigeration condenser performance
Spots system performance trends or potential maintenance issues

25. Performance Monitoring
Ambient dry bulb temp
Ambient relative humidity
Ambient wet bulb temp
Ambient dew point
Compressor power
Condenser inlet air temp
Condenser liquid line temp
System spray percentage
Points Monitored

26. Conserves Water

27. “Electricity production consumes 20+ gallons
Water Usage
Notes
National Averages
Can range gallons
per kWh created
Depends on type
of power plant
“Electricity production consumes 20+ gallons
per kWh created”
Nat’l Renewable
Energy Lab
~1.9 gallons per kWh saved
Conserves ~90% water, saves electricity
Ex: 75 ton A/C unit
consumes $78
of water / year
Saves $7K+
electricity / year

28. Water Conservation reduces demand and consumption of electricity while
saving water in
the community it serves

29. Commercial Facility – Marysville, CA Trane CGA Series 50-Ton, Air-Cooled Chiller
Summary Results

30. Telecom Facility – Houston, TX
Trane RTAA 100-Ton, R Series Air-Cooled Chiller
Summary Results

31. Peak Demand Savings (%)
A function of
climate, utility rates
& utility incentives

32. Texas Utility
REBATES

33. US Utility Rebates

34. Join the
Revolution
OEMs
Large
End Users

35. EvaporTech Services, LLC
Jerry Burden
EvaporTech Services, LLC