Indirect Adiabatic Cooling Journeying toward a PUE of 1.2 or under? Adopting a low energy AND low water consumption approach www.excool.com
Meet Jon Pettitt Jon Pettitt is Excool’s Chief Commercial Officer a highly experienced, successful and well-regarded business leader within the global data center Industry. Jon has over 15 years of specialising in data center cooling solutions and energy efficient systems for mission critical facilities. Previous to Excool 8 Years @ Munters Vice President of data centers for EMEA & APAC, 14 Years @ Johnson Control / York . www.excool.com www.excool.com www.excool.com
Previous Experience 10 28 51 826 230+ Years Clients Sites Units MW of Cooling www.excool.com
Our changing world 2020 2010 • Low energy consumption • Low energy consumption • Strict restriction on water consumption • No restriction on water consumption • Space for installation is a premium • Plenty of space for installation • Remove risk of air contamination • Remove risk of air contamination • Average data center 10MW + • Average data center between 1-5MW . www.excool.com
Typical IDEC Arrangement
Typical IDEC Arrangement Shows 4 storey install with units side-by- side and shaped ductwork to allow air to ‘percolate’ between ducts and through open mesh floors.
Typical IDEC
How it Works www.excool.com
www.excool.com
Dallas TX - Average 75°F 97°F 62% RH Average Heat exchanger entering condition 60°F 67°F www.excool.com
Dallas TX - Peak Dallas Peak 36% RH 75°F 97°F Heat exchanger entering condition 83°F 110°F www.excool.com
Why Indirect ? www.excool.com
HEAT EXCHANGER - Indirect
HEAT EXCHANGER - Indirect AIRBORNE DUST Server failure modes due to dust include but are not limited to the following (ASHRAE 2009b): Mechanical effects . Mechanical effects include obstruction of cooling airflow, interference with moving parts, abrasion, optical interference, interconnect, interference, or deformation of surfaces (e.g., magnetic media) and other similar effects. � Chemical effects . Dust settled on printed circuit boards can lead to component corrosion and/or to the electrical short circuiting of closely spaced features. Example of copper creep corrosion on a Electrical effects. Electrical effects include impedance lead-free circuit board changes and electronic circuit conductor bridging.
DATACENTER Efficiency Where does the The largest energy power go? consuming element apart from the IT load is the Compressor!! SOLUTION – IDEC reduce dependency on mechanical Chilled Water, direct air, DX and cooling pumped refrigerant IT Power Provision Cooling Electrical Losses www.excool.com
IDEC Comparison Pumped Item IDEC Chilled Water Direct Air Refrigerant Mechanical Cooling Partial Full Full Full Complexity Simple Complex Complex controls Complex controls Single points of failure to address Low High Low Low BMS points Low High Low Low Installation costs Low High Low Low Operating Costs Low High Low High Maintenance costs Low High High High Water Consumption vs air cooled Low/Zero Low NA NA Water Consumption vs water cooled Low/Zero High NA NA Dependant on humidity Water Consumption Low/Zero requirements None Potential for contaminant ingress None None High None Re-start time Fast Fast Slow Slow www.excool.com
Reduction in Water Consumption www.excool.com
Modes of operation allow unit to be adapted to local conditions for most efficient OPEX Modes of Operation Mode 4 Mode 3 Mode 5 Mode 1 Mode 2 Mech Cool + Adiabatic Adiabatic + Mech Cool Mech Cool Free-cooling Adiabatic Fan Fan Fan Fan Fan Only Pump Pump Mech Cool Pump Mech Cool Mech Cool www.excool.com
Energy Priority Mode Water Priority Mode Location pPUE pPUE Atlanta 1.064 1.079 Chicago 1.048 1.059 Dallas 1.074 1.105 San Jose 1.043 1.058 Performance Ashburn 1.057 1.071 Example Energy Priority Mode Water Priority Mode Location WUE l/kWh WUE l/kWh Typical operational data for a 1MW Atlanta 0.200 0.084 data hall. Based on 75°f supply air Chicago 0.160 0.054 temp, 95°f return air temp, 75% average annualized demand and Dallas 0.330 0.186 N+1 resilience San Jose 0.260 0.053 Ashburn 0.190 0.084
Water hardness Choose an IDEC unit that can accept water with hardness as calcium carbonate in milligrams per litre of Up to 250mg/l, For areas of water hardness above 250mg/l we would recommend some pre-softening of the water. Typically unless the customer is on bore hole water with exceptionally high hardness softeners should not be require as in the US hardness is usually below 250mg/l. (see map)
Integrated Water Treatment Auto drain down Auto purge Integrated System and Software Biological Filter Anti scale system Water quantity 3 modes of operation to fully utilise all water available Frost control No adiabatic cooling required in winter so no risk of freezing . Water storage Water storage included.
Reduction in Expenditure www.excool.com
Annual Operational Cost Saving * 1MW Data Center Cooling Approximate Operational Costs IDEC Chilled Water $200,000 $150,000 $100,000 $50,000 $0 Chilled Water IDEC Values are indicative and for comparative purposes only Tariff Costs include for water and energy consumption and maintenance kW/hr = $0.10c Utility costs based on local commercial rates 100 US Gallon = $0.94 All based on 1MW IT provision operating at annualised IT utilisation of 75% Supply at 75°F, return at 97°F * Indicative costs from comparison purposes only www.excool.com
Electrical infrastructure Savings Generators - Smaller Transformer - Smaller Diesel storage - Smaller UPS UPS - Smaller Chilled water – 475kW Peak demand per MW* Direct air – 500kW * Location – Portland, OR IDEC – 275kW www.excool.com
Capital Cost Savings 1MW Data Center Cooling Approximate Capital Costs $1,200,000 BMS Additional $1,000,000 Electrical Infrastructure $800,000 Hydraulics $600,000 CRACs IDEC $400,000 $200,000 Chillers $0 Free Cooling Chillers IDEC Values are approximate and for comparative purposes only. Costs may vary depending upon data center design, equipment specification and selection and site conditions www.excool.com
Summary 1. Lower Total Cost of Investment i. Reduced Capital Expenditure ii. Reduced Operational Expenditure (Energy & Water) 2. Faster Return on Investment i. Decentralised system ii. IDEC growth matches IT growth iii. Additional revenue for lower capital iv. Reduced footprint 3. Improved Resilience 1. Predominantly fans and pumps 2. FELXIBILITY in modes of operation 3. No complex pipework and controls 4. No Contamination risk i. Outdoor air stays outdoors! www.excool.com
THANK YOU FOR TIME www.excool.com
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