Advanced Evaporative Pre-Cooling

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

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

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

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

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

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

R EVOLUTION

Reduce electrical consumption In 2011, the Texas Legislature passed Senate Bill 898 amending the Health and Safety Code §388.005 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, 2011. 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

vs. Inefficient Buildings Costs Profits Efficient Buildings

Energy efficiency conserves resources efficiencies are common & affordable but…

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

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

Evaporative Cooling Technology REVOLUTION Efficiency $ + Rebates = avings

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

saving 22% on average

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

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

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

Sample Installation

Installation Before After

Water Piping Schematic

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

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

Conserves Water

“Electricity production consumes 20+ gallons Water Usage Notes National Averages Can range 10-25 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

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

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

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

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

Texas Utility REBATES

US Utility Rebates

Join the Revolution OEMs Large End Users

EvaporTech Services, LLC Jerry Burden EvaporTech Services, LLC 800.898.0013 Jerry.Burden@EvaporTech.com www.evaportech.com www.evaporcool.com