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Evaporative Pre-Coolingfrom
RK Energy
Presented by:
• Evaporative Pre-Cooling Value Proposition
• System Operations and Equipment
• Water Treatment & Use
• Installations
San Francisco, CaliforniaDenver, Colorado
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Western US “Free” Evaporative Pre-Cooling Opportunity SmartMist Evaporative Pre-Cooling
Source of Savings*Simple graphic says it all
* Colorado Springs Utilities https://www.csu.org/CSUDocuments/wpevaporativeprecooling.pdf
San Francisco, CaliforniaDenver, Colorado
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Colorado Front Range Evaporative Pre-cooling Opportunity SmartMist Evaporative Pre-Cooling
WB temps remain relatively constantAt all ambient temps SmartMist reduces the temp to 90% of WB temp
The hotter it gets the greater availability of free cooling!
San Francisco, CaliforniaDenver, Colorado
RKmist.com
DX System Performance MapsSmartMist Evaporative Pre-Cooling
@ 95ºF: 1.4 kW/ton@ 60ºF: .85 kW/ton40% Efficiency Improvement opportunity50% cooling capacity I 50% energy efficiency
Project Profile:80 tons nominal capacity coolingEER: 9.2 (altitude adjusted)
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Cooling Capacity Increases with Evaporative Pre-Cooling SmartMist Evaporative Pre-Cooling
Commercial Building Aurora: 650 Summer Hours temp OAT> 80ºF
• DX Condensing Units: Average Capacity all hours above 80ºF = 80 tons
• DX Condensing with SmartMist: Average Capacity all hours above 80ºF = 95 tons
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Project Profile
Retrofit 3-340 ton chillers serving data center and support areasCulver City CA
Annual RTU Cooling energy* 5,127 GWhPeak Summer Cooling Demand 1,516 kWAnnual Cooling energy with SmartMist Pre-Cool 4,373 GWhPeak Demand with SmartMist Pre-Cool 1,475 kW
* Energy use simulation model based on existing equipment hourly kW measurements correlated to TMY data for nearest weather station
Data Center Los Angeles CAEvaporative Pre-Cooling Energy Conservation Measure
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Return on Investment Total Project Cost $100,000Rebates ($70,000)Net Project Cost $30,000Annual Savings $121,500Simple Pay Back .2 YrsROI 405 %
Project Proforma
Project Number:
Project Name: DirecTV Project Location: 12800 Culver Blvd., Los Angeles CADate of Report: .3/26/2015
Line Description Quantity Unit Amt Notes
Profile
1 System Size 1,020 tons
2 EER various
3 Annual kWh 7,690,160 kWh
4 Peak kW 1,516 kW
5 SmartMist
6 Annual Energy Bill Savings
7 kWh Annual savings 1,131,617 0.1087 $123,000
8 Peak Demand kW savings $61,000
9 less additional water bill 295,800 gals 0.00481 ($1,400)
10 Total Annual Energy Bill Savings $182,600
11
12 Project Cost
13 SmartMist System $100,00014 Incentives
15 LADWP Custom Performance 1,131,617 kWh 0.15 $70,000 70% Max
16 Total Rebates $70,000
17 Net Cost $30,000
18 ROI % 609%
19 Simple Pay Back years 0.2
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Correlating Existing Equipment: measured to modeled
Projected Expected kW savings
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•The SmartMist™ system works by delivering an on-demand micro mist in front of the condensing coil
•The mist flash evaporates instantly and continues until fully evaporated off of either the coil or a mist capturing media (depending on water quality & water treatment choice)
•Instant ambient air evaporative cooling around the unit (up to 40oF)
•Most effective heat transfer method available
•Benefits:
Head pressure and amperage draw are instantly reduced by up to 25%
Cooling capacity is increased by up to 20%
Coefficient of performance (COP) is increased
Life of condenser is extended
Potential Evaporative Cooling
SMARTMIST™ technology takes advantage of 90% to
100% of this potential cooling
The SmartMist System Solution
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•One gallon of water has ~8,000 BTU of cooling potential (heat of vaporization)
• The more efficiently water is evaporated, the more of its full cooling potential can be realized
• The greater the surface area, the quicker it evaporates
•Our systems use patented ultra low flow atomization nozzles to form a mist of fine water droplets 5 to 30 microns. Giving 1 gallon of water the surface area of a Soccer Field!•Once released into air, these tiny water droplets instantly absorb heat and evaporate, thus cooling the air
The Cooling Power of Mist
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The Equipment
Fully Automated Pumps Deliver Mist Only when It is Needed
Patented Nozzle Design for Micro Fine Mist 3 to 5 Year Warranty on Complete System!
Custom Pumps and Controls
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Water Use & TreatmentSmartMist Evaporative Pre-Cooling
http://youtu.be/XKHfHq300aA
Use:The SmartMist system annual use: Approximately 250 to 350 gallons/ton per year for a commercial building application
Marginal Front Range cost of water: $4.81/1000 gals
Treatment:Cloudburst uses a three step process to minimize and eliminate any impact of water on DX coils and equipment:
1. Test2. Formulate Solution3. Monitor
Additionally, Cloudburst will provide a warranty for any host system original warranty where SmartMist evaporative pre-cooling is applied. (most warranties cannot be voided due to the installation of a SmartMist system or any other evaporative pre-cooling system). Our warranty covers the replacement or repair of any coil that becomes fouled or compromised due to the operation of our systems.
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SCALE PREVENTION OPTIONSWe keep your coils clean & safe in all water conditions & use – Guaranteed!
• Water is tested prior to water treatment &/or filter selection.
• Our primary water treatment is the Cloudburst proprietary smartStop™formulation of a proven TAC scale eliminating technology.
• In areas with extreme hardness and water conditions or upon customerrequest, other techniques such as RO, Traditional Water Softening,Deionization or Mist Barrier Filters may be used.
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smartStop™ Water Treatment
smartStop™ isTested and Certified by theWater Quality Association toNSF/ANSI Standard 61.
Atomic sized nucleation sites on the surface of small polymerbeads convert dissolved hardness into microscopic crystals.
Once the crystals grow to a certain size they are released from thebead. The crystals in solution keep the hardness out of the waterso that it can’t form scale.
Crystal photo taken with a Scanning Electron Microscope.
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Extended Warranty & Service AgreementSmartMist Evaporative Pre-Cooling System
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SmartMist Evaporative Pre-Cooling by Cloudburst2015-16 Colorado Installations
2014-2015 Colorado Tons Installed Units
Annual kWh Savings
Peak kW Savings
Data Center 1,999 16 1,549,000 935 Office 2,175 29 530,000 736 Pharma 475 7 193,000 166 Retail/Rest 381 26 143,000 163 k-12 434 48 122,000 169 Multi-use 265 13 99,000 109 Cold Storage 111 2 45,000 126 Hotel 170 1 43,000 38 Museum 125 1 19,000 50 Midrise Residential 20 1 5,000 8 Total 6,155 144 2,748,000 2,500
San Francisco, CaliforniaDenver, Colorado
RKmist.com
SmartMist Evaporative Pre-Cooling by Cloudburst2015-16 Colorado Installations
2014-2015 Colorado Tons Installed Units
Annual kWh Savings
Peak kW Savings
Data Center 1,999 16 1,549,000 935 Office 2,175 29 530,000 736 Pharma 475 7 193,000 166 Retail/Rest 381 26 143,000 163 k-12 434 48 122,000 169 Multi-use 265 13 99,000 109 Cold Storage 111 2 45,000 126 Hotel 170 1 43,000 38 Museum 125 1 19,000 50 Midrise Residential 20 1 5,000 8 Total 6,155 144 2,748,000 2,500
San Francisco, CaliforniaDenver, Colorado
RKmist.com
K-12 Charter School – Retrofit 48, 3-16 ton RT packaged units. 434 total nominal tons of cooling
SmartMist Evaporative Pre-Cooling by Cloudburst2014 Colorado Installations
2014: Colorado Front Range InstallationsOccupancy Type k-12 School
nominal tons 434units 48
size range 3-16 tontype packaged RTU's
kWh Savings 122,000kW savings/ton 0.39
Annual Energy Bill Savings $22,000
$ savings/ton $51Savings rate/kWh $0.18
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Contacts
Paul KuhlmanSan Francisco, [email protected]
Frank RamirezDenver, [email protected]
