Technology to License

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7 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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Hothouse
Docklands Innovation Park
128-130 East Wall Road
Dublin 3
Tel: +353 1 240 1300
E: hothouse@dit.ie
Hothouse
DIT Aungier Street
Dublin 2
Tel: +353 1 402 7144
E: hothouse@dit.ie
W: www.hothouse.ie
Energy Efficient Data Centre Cooling System
Technology to License
TTLanimation.indd 1
10/09/2008 09:28:07
Dublin Institute of Technology (DIT) is seeking companies to
license a novel data centre cooling plant arrangement that
greatly reduces energy requirements and operational costs. The
system makes maximal use of ambient cooling technologies and
includes a patent-pending air flow control arrangement that
reduces energy consumption further and helps eliminate
hotspots.
Researchers at DIT have developed a system that utilises several low energy cooling technologies to reduce the
refrigeration load and a novel fan control system to reduce fan power. The system is applicable to any internal
environment requiring controlled temperature/humidity conditions and having long running hours and a high
sensible heat ratio, e.g. telecoms equipment rooms, mainframe computer rooms and many manufacturing and
ligh
t industrial applications.
Energy cost savings for a large data centre in Dublin have been estimated to be in excess of 40% and carbon
dioxide emissions are reduced. These estimates are for a data centre maintaining the recommended, rather than
the allowable, operating environment specified by the American Society for Heating, Refrigerating and
Air-Conditioning Engineers (ASHRAE).
Current systems based on Computer Room Air Conditioning
(CRAC) close control units are expensive to run because all of
the heat generated by the servers is dealt with by electrically driven refrigeration machines. In addition, fan
power, which is substantial in these applications, is generally constant and sized for the maximum cooling load
presented.
Applications
• Data centres, mainframe computer rooms, telecoms equipment rooms.
• Manufacturing and light industrial environments having long running hours and a high sensible heat ratio.
Advantages

• Reduced running costs - substantial reduction in energy costs for new build; energy performance of
existing systems can also be improved.
• Low initial costs - patent-pending aspect requires little additional equipment.
• Negligible additional maintenance costs – requires little additional equipment.
• Improved server performance – hotspots due to recirculation are virtually eliminated.
• Server noise reduction –server fan speeds are generally lower due to elimination of hotspots.
•Reduced carbon footprint – CO2 production is reduced in step with reductions in energy usage.
Air Handling Unit.
Hothouse
Docklands Innovation Park
128-130 East Wall Road
Dublin 3
Tel: +353 1 240 1300
E: hothouse@dit.ie
Hothouse
DIT Aungier Street
Dublin 2
Tel: +353 1 402 7144
E: hothouse@dit.ie
W: www.hothouse.ie
Energy Efficient Data Centre Cooling System
Technology to License
TTLanimation.indd 1 10/09/2008 09:28:07
Stage of Development
Technology Description
The proposed data centre cooling plant arrangement integrates the following low energy cooling technologies
to maintain the recommended ASHRAE operating conditions while substantially reducing energy costs:
• An air side economiser to maximise the use of ambient air cooling.
• A water side economiser to take advantage of depressed wet-bulb conditions.
• An adiabatic humidifier powered by excess server heat rather than electricity.
• Elevated chilled water flow temperatures leading to a better coefficient of performance (COP).
In addition, the system includes variable speed fan drives to reduce fan power and a novel air flow control
arrangement that reduces fan energy consumption further and minimises hotspots by virtually eliminating air
recirculation in the server room.
Dr. Michael Crowley
Michael Crowley, a chartered engineer has over ten years industry experience
as a design engineer and section leader with a number of mechanical
engineering services (HVAC) consultants and contractors. He is a graduate of
University College Dublin and Dublin City University and has lectured courses
at DIT in Building Services Engineering (HVAC), Refrigeration, and Building
Energy Simulation.
The Dublin Energy Lab
The Dublin Energy Lab (DEL) a research group in DIT specialising in
the fields of electrical power, energy policy, solar energy and zero
emissions buildings. They are leaders in science and engineering
energy research in Ireland and have been involved in many large
scale projects and applied research collaborations with national
and international industry partners.
Hothouse is the award winning Innovation and
Technology Transfer Centre at Dublin Institute of
Technology. A magnetic energy hub, Hothouse draws in
entrepreneurial and academic talent, ignites creativity
and provides a dynamic environment to fast-track
businesses and technologies to commercial success.
Dr. Michael Crowley
Dublin Institute of Technology has filed a patent and continues research in this area.
Michael’s Ph.D. investigates and develops numerical methods for stiff systems
of ordinary differential equations, which arise in the simulation of energy flows
in buildings. He is currently developing novel plant arrangements for
(low energy) cooling of data centres. Other research interests include detailed computer simulation of heat and
mass transfer, especially in the context of buildings and plant.