ecocooling it sales manual 2015 - it and comms room cooling (web use)
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Cooling and Ventilation Technologies
Bury St Edmunds, IP28 6RE T: +44 (0)1284 810586 E: [email protected]
IT, Server and Telecoms Fresh Air Systems
Energy Efficient Direct Evaporative Cooling
EcoCooling Ltd.
‘The Fresh Air Direct Evaporative Cooling and Ventilation Innovation Specialists’
• Established in 2002, EcoCooling are the largest manufacturer and distributor of fresh air direct evaporative coolers in the UK, with over 3,000 installations worldwide.
• Based in Suffolk, the UK manufacturer has over 15,000m2 of warehouse and manufacturing space ensuring short lead times on orders.
• EcoCooling are credited with revolutionising the control systems required to use the equipment in IT and AHU systems. The in-house R&D department works to incorporate the latestenergyefficienttechnologiesintoallproductrangesensuringourclientshavesomeof the most innovative ventilation and cooling systems in the world. This focus on innovation has also resulted in EcoCooling holding a number of patents for fresh air technologies.
• Our complimentary in-house design consultancy service capitalises on our vast industry experiencetoworkcloselywithconsultantsandclientstodesignthemostefficientsystemspossible.
• EcoCoolingsystemsaredesignedtobeusedacrosstheITindustry,specificapplicationsinclude data centre, UPS and comms room cooling. Please contact [email protected] if you require a bespoke design or would like to discuss your project with our technical sales department.
HOW ECOCOOLING SYSTEMS WORK:Ventilation: EnergyefficientECfansmovefreshairthroughthebuildingataspecifiedflowrate.
Attemperation: Using the EcoCooling control system hot exhaust air is mixed with cold external air to supply air at a constant temperature.
Evaporative Cooling: Air is passed over a wetted cooling pad, the air temperature is reduced as the water evaporates.
Controls: EcoCooling’s advanced control system has been developed based on our extensive experience in fresh air cooling of IT equipment. It automatically optimises the energy savings and operation of the system once commissioned.
Filtration: EcoCooling offers a number of filtration options to satisfy the airquality levels required in different IT environments.
ADVANTAGES OF USING DIRECT EVAPORATIVE COOLING
• No refrigerants, completely natural cooling process• Low running and maintenance costs• Low carbon and energy use (~3% of AC alternative)• Exploits the maximum amount of free cooling available• Low energy use even at partial population
ADVANTAGES OF USING ECOCOOLING SYSTEMS
• Experienced innovators in fresh air solutions and controls• Free solution consultancy and design assistance• Modular systems can reduce capital cost• Advanced control system• Patented products and controls• 100% ASHRAE compliant conditions• Internal and external product ranges• UK manufacturers - coolers and spares all ex-stock • Worldwide remote commissioning• Qualify for Salix funding.
The Energy Efficient Alternative to Air Conditioning
EcoCooling Energy Efficient Cooling and Ventilation Technologies
ENERGY EFFICIENT IT AND COMMS ROOM COOLINGFree Cooling:Whileevaporativecooling isanextremelyefficientwayofprovidingcoolingonhotdays, the majority of savings come from free cooling. This is because most of the time in the UK the weather is colder than the desired supply temperature. It is during these cooler periods that the CREC (Computer Room Evaporative Cooler), fresh air ventilation and attemperation system can exploit free cooling.
Case Study 1:Data Centre Operator
Location: LondonDesired Supply Temp: 18°C,
No. of free cooling days in 2013: 296
Case Study 2:Data Centre Operator
Location: ManchesterDesired Supply Temp: 21°C,
No. of free cooling days in 2013: 330
ENERGY EFFICIENT EC FANS:As the majority of power used when the system is in free cooling mode is to drive the fans, EcoCooling incorporates low energy EC (Electronically Commutated) technology into all its IT systems and products. The majority of power savings can be made by optimising the control of the fans via the following methods:
• Fan speed is automatically adjusted by EcoCooling controls to meet cooling demands, lowering fan energy use.
• Low energy use at slower speeds (1/2 speed reduces energy consumption by 85%), meaningpartialpopulationofroomsisefficient.
EcoCooling Energy Efficient Cooling and Ventilation Technologies
IT INDUSTRY COOLING GUIDELINES
ASHRAE: Temperature, humidity and contamination must all be considered when designing a cooling system for a server room or data centre. The graph at the bottom shows the ASHRAE recommended allowable zones for temperature and humidity and the EcoCooling operating envelope:
ASHRAE: While ASHRAE has an allowable zone from 15-32°C, care should be taken as server ventilation has been shown to increase its energy use at temperatures over 25°C. EcoCooling: EcoCooling systems can provide supply air temperatures below 25°C all year round in the UK. Control systems provide close control (+/-1°C) and a large percentage of the year 16°C supply air temperature delivery is achievable.
ASHRAE: The ASHRAE allowable zone is between 20-80% relative humidity. Low hu-midity can damage legacy equipment, however there is little evidence for detrimen-tal effects of high or low humidity on modern equipment in IT environments.
EcoCooling: The EcoCooling control system can adjust the supply set points auto-matically within the system to ensure that relative humidity is kept within the set point limits.
CONTAMINANTS: As EcoCooling uses fresh air systems, all IT cooling systems can be designed with G4/EU4 grade filtrationatboththesupplyandrecirculationpoints.FiltrationuptoF7isavailableuponrequest.
0oC 5oC 10oC 15oC 20oC 25oC 30oC 35oC 40oC 45oC 50oC 55oC-5oC
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Manufacturer Specifications10-35C 5-80%RH
ASHRAE 2008 Class 1 Allowable15-32C 16.5CDP 20-80%RH
ASHRAE 2011 Recommended18-27C 5.5-15CDP 60%RH
CIBSE19-23C 45-55%RH
EcoCooling Capability
IT COOLING AND VENTILATION PRODUCTS
INTERNAL PRODUCT RANGE (ECT): Compact and Flexible Solutions
TheECTrangeofcoolersaredesignedtobe installed internally.Theyhavemultipleconfigurationoptions to allow for easy installation into rooms with limited space.
Worried about getting it into your room?TheECT5400willfitthroughasingledoor!
Worried about water in your facility? For complete peace of mind a sophisticated alarm and leak detection system, capable of cutting off the water supply, has been incorporated into all of our internal products
EXTERNAL PRODUCT RANGE (ECP): Proven Technology and Results
The ECP range of coolers can be installed externally or inside a plant room. The standard unit is downflowhowevertopandsidedischargeconfigurationsareavailable.
Cooling Capacity (kW)
Type of Cooling System
Nominal Flow Rate
ΔT=5(comms)
ΔT=10(normal servers)
ΔT=15(blade servers)
ECT5400 5,400m3/hr 9.6kW 19.2kW 28.8kW
ECT10800 10,800m3/hr 19.2kW 38.4kW 57.6kW
ECP CREC (4-sides) 12,600m3/hr 22.4kW 44.8kW 67.2kWECP CREC (3-sides) 9,600m3/hr 16.8kW 33.6kW 50.4kW
ECP WBL 18,000m3/hr 38kW 64kW 96kW
Choosing the right solution for you: Contact us for a short scoping document or to request a site visit from an approved installer.
EcoCooling Energy Efficient Cooling and Ventilation Technologies
CREC SYSTEM - COOLING AND VENTILATION PROCESS
EC Extraction Fan
Recirculation Damper
Cold External Air
EC Supply Fan
Attemperated Supply Air
Hot Air Exhaust Exhaust Damper
Recirculated Hot Air
Hot Air Cold Air Attemperated Air
ECP CREC D/T
CREC (4-SIDED) SINGLE MODULE - 12,600m3/hr
System Design ©EcoCooling Limited 2015
Cooling Demand 100.0 kWFlow rate required 8.3 Kg/s 7 m³/sΔT (change in temperature) 12.0 °C
The IT load of 100kW with a 12C ΔT requires a mass flow rate of 8.3kg/s with an air flow rate of 7m³/s.This equates to 25,000 m³/hr, 15,000 cfm or 221 million cubic metres of air per year.
Running Cost Comparison with Refrigeration
Coefficient of performanceAC Electricity Use 50.0 kW 0 kWEcoCooler Fan Power 0.53 kW/m³/s
Total Electricity Usage 50.0 kW 3.7 kWEffect on PUE
Annual Usage Annual Hours 8760 hrs
Operating CostsBleed rate
Cost 0.100 £/kWr 1.000 £/m³ 30%
Electricity Use 438,000 kWhr 32,412 kWhr 405,588 kWhrWater Use 0 m³ 145.0 m³ -145.0 m³Electricity CostWater Cost
Total Cost
Carbon Dioxide Impact 218 tonnes0.53702 kg/kWhr Carbon Dioxide UK value
17235
WaterElectricity
Annual SavingsEcoCoolingRefrigeration
-£145£40,559
£145£3,241
£3,386 £40,414£43,800
£0£43,800
Refrigeration EcoCooling27.02.0
0.50 0.04
An EcoCooling control panel is integral to the success of a CREC installation. The control system is Schneider Crouzet and the program has been developed by EcoCooling in-house over the last 10 years to optimise both the energy savings and operation of the CREC system.
CONTROL SYSTEMS
KEY FEATURES:
• Versatile Communication Options: Modbus TCP/IP allows for easy links into most major BMS systems and an in built VNC server allows the HMI to be viewed remotely on most mobile phones. EcoCooling can assist with converting data and SMPT logging on request (e.g. Provide sample scripts).
• Resilience: All systems are ‘fail-safe’ and incorporate manual control and back-up power options to ensure fans may be run independently if communication with the PLC is lost.
• Redundancy: All key sensors are duplicated and refrigeration can be automatically activated as a backup option.
• Alarm Notification: The control system automatically notifies the BMSsystem in the event of a problem. Email notification is also availableonrequest.Thecontrolsystemisdirectlylinkedtothefiresystem,whenactivated it automatically closes fire dampers and switches on thebackup.
• Historical Data and Event Logging: The HMI can log and present different variables as a trend display. Chosen data can be stored on the HMI for download at a later point via USB. This data can also be emailed after a fixedtimeintervalchosenbytheuser.
• Remote Commissioning - EcoCooling offer a remote commissioning service, saving time and money, particularly in foreign locations.
EcoCooling Energy Efficient Cooling and Ventilation Technologies
Communication
The EcoCooling CREC system can help data centres achieve PUEs of below 1.1. Exploiting the EC fan technology can reduce the amount of power required further, meaning PUEs of 1.05 are now achievable in the right environments.
PUE (Power Utilisation Efficiency)
AC CRAC Chilled water CREC
Energy Use Comparison Example- 100kW IT load
SAVINGS AND PERFORMANCE DATAThe EcoCooling savings calculator can estimate the possible energy savings for all of our systems based on historical weather data. We can perform cost analysis for any size data centre or comms room in most locations worldwide. Please contact us for more information.
EXAMPLE COST ANALYSIS:
WHAT DOES IT ME FOR ME?
• Increased speed control:EC technology enables continuous adjustment of the fan speed to meet the cooling demands of the data centre. EcoCooling control systems are designed to take advantage of the energy savings which can be gained by modulating fan speed.
What does EC mean?EC stands for Electronically Commutated, which meansthefanisfittedwithapermanentmagnetmotor (PMM).
What products use it?All ECT units use EC fans.Theyarespecifiedby EcoCooling for any CREC/ECP systems as standard.
ENERGY SAVING EC FANS
EC Fan Speed/Power Relationship Curve
• Low power usage at partial loads:The graph to the right shows the relationship between fan speed and power utilisation. The power/speed relationship is subjected to a x3 relationship, meaning that at half the speed the fan will be using an eighth of the electricity. Operating the EcoCooling system at half speed reduces the fan energy use by over 85%.
EcoCooling Energy Efficient Cooling and Ventilation Technologies
When fresh air is used in a data centre there can be a risk of either particulate or gaseous contamination. The quality of the air in the locality of the data centre can affect the fea-sibility of the use of fresh air.
FILTRATION FOR FRESH AIR VENTILATION AND COOLING SYSTEMS
ECOCOOLING FILTRATION OPTIONS
AdequatefiltrationiscriticaltoasuccessfulfreshaircoolingsolutioninITenvironments.AspartofanEcoCoolingsystemitisadvisedtouseaminimumEU4filtrationonboththesupplyandattemperatedair.ThestandardfiltrationoptionsforCRECsystemsare:
EU4 pre-filter jackets theseareavailableex-stocktoorderandfitaroundthecoolerfilteringtheexternalair.
EU4 cartridge filter theseareavailableex-stockandcanbefittedaspartoftheattemperationlooptoensurerecirculatedairisalsofiltered.
Dual Filtration: Systems can be implemented with a combination ofairintakefiltration(pre-filterjackets)designedtoeliminate potential contamination from external air. In addition cartridge filters can be used aspart of the installation to ensure recirculated air is alsofiltered.
Bury St Edmunds, IP28 6RE T: +44 (0)1284 810586 E: [email protected] W: www.ecocooling.org
FREQUENTLY ASKED QUESTIONSWhat temperatures can be expected using a CREC?In the UK the temperature will not go above 23°C.
What will be the levels of humidity?The CREC control system dynamically changes the air supply temperature to control RH levels. In the UK this can ensure 100% compliance with ASHRAE Class 1 Allowable standards for Relative Humidity.
How is the air filtered?ThestandardCREChasalowleveloffiltration.ThiscanbesupplementedbyG3pre-filtersandG4panelfilters.
How much maintenance is required?It is normal to maintain an EcoCooling CREC every 3 months. A number or approved contractors can provide maintenance.
How long do the filter pads last?Filter pads last from 3 to 5 years.
What happens in freezing conditions?The CRECs automatically drain when not in cooling mode. The water supply system is also automatically drained to prevent frost damage in cold weather.
Can you catch Legionnaires’ disease from an EcoCooling Evaporative Cooler?No, primarily because the circulating water is less than 20°C and no droplets are formed. An EcoCooler is classed as low risk (the same as a hot and cold water supply system). A legionella risk assessment is produced as part of the commissioning process.
Is the water re-circulated?Yes, the water is re-circulated until the evaporation has concentrated it to its scaling point or when the cooling is turned off and the cooler automatically drains.
What is the warranty?The EcoCooling CREC has a parts-only warranty of 2 years.
Is the EcoCooling CREC suitable for all IT equipment?Older equipment such as main frame computers and paper media systems require close control of relative humidity and so evaporative cooling cannot be used.
Is the EcoCooling CREC suitable for all global locations and climates?No, it is not suitable for tropical climates where the wet bulb temperature of the ambient air can exceed 25°C. EcoCoolingcanprovide specificadviceonperformance foranylocation in the world.
What is the availability of spare parts?EcoCooling holds a complete inventory of spare parts in the UK. Is the EcoCooling CREC CE marked?All EcoCooling ECP products are CE marked using UK based approved testing and assessment facilities.
EcoCooling Ltd.