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GLOBAL REFERENCES
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References :
The History of Evaporative Cooling
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Evaporative cooling is the oldest form of air conditioning ever used
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The ancient Greeks used to fill terracotta pots full of water and leave them by
doors and windows to benefit from evaporative cooling
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The Arabs hung wet blankets over doors and windows to achieve the same
effect
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But this is direct evaporative cooling. The absolute humidity will increase.
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Canovate is introducing the Next Generation Evaporative Cooling for Datacenters
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INDIRECT ADIABATIC COOLING
How does Indirect Adiabatic Cooling technology works?
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Two 100% separated air streams. Outside air and datacenter air.
Only max.50 % of outside air to cool 100 % datacenter air.
Forced evaporation of the water on the surface of the plates
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Next Generation
Evaporative Cooling
Hot air from data center
Hygroscopic layer
Ambient air intake
Water supply
Scavenger air
Cool supply air
Plates
2
Secondary fan
5
1
Adiabatic
cooling
İnside
4
Hygroscopic
Layer
Primary
fan
6
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3
The power of evaporating water:
Polypropyleen plates
The power of evaporating water:
Primary airflow
The power of evaporating water:
Hygroscopic Layer
The power of evaporating water:
Secondary airflow
The power of evaporating water:
Adiabatic Cooling
The power of evaporating water:
High Efficient Adiabatic Cooling
Accoording the temperature guidline of ASHRAE
ASHRAE TC 9.9 2011
Recommended
Allowable A1
*Source: internal analysis of various competitors data
75 % partial load means up to 50 % energy saving
Nominal load
Partial load 75 %
Energy saving 50 %
The electrical cost of different cooling systems
System
EER ( Energy
Efficiency
Ratio)
Needed Electrical
power for cooling
1 MW [kW]
Typical Energy cost
(Year) [€]
DX (CRAC)
3
333
€ 233.600
CW (CHILLER +
CRAC)
5
200
€ 140.160
CW + FREE COOLING
10
100
€ 70.080
INDIRECT ADIABATIC
30
33
€ 23.360
The heat exchanger forms the basis with
simple easy to understand design and use
Two fans
heat exchanger
Easy controls are designed well, easy to use
and able to communicate with all building
management systems
THREE OPERATING MODES
Free Cooling 0˚C to 15˚C Dry bulb temperature
At low ambient temperatures the Canovate CACxxx Series can achieve 100% free cooling.
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Indirect Adiabatic Cooling 15˚C to 35˚C
As the ambient temperature begins to increase, the heat exchanger requires more
airflow to deliver the required cooling, the ambient fans ramp up accordingly. The
system will start with wetting the heat exchanger and run as a indirect adiabatic cooler.
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Top up Operation above 35 ˚C
(Indirect adiabatic & mechanical cooling)
35 ˚C
If the supply temperature cannot be met by indirect adiabatic cooling alone (i.e. where
lower supply temperatures or higher more humid ambient conditions are present), the
DX system will be activated.
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Canovate CACxxx Series Benefits
1. Highest water efficiency
2. Ultra-energy efficient
unit with typical pPUE
below 1.2
3. Maximum
economizer utilization
4. Compact size
5. Flexible configuration
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Flexible configuration
Flexible configuration (50,100, 200,300 and 400 kW
standard unit sizes)
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Canovate Air Handling Solutions
Canovate CACxxx Series save money ,reduced energy consumption ,eliminates
high ambient problems and serve as an energy efficient cooling solution for
datacenters.
•Reduced Running Cost
Controls
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•Reduced Maintenance
•Improved Reliability
BMS compatibility
Supply air temperature control
Air flow and pressure monitoring
Dual power supply (ATS)
•Increased Capacity
•Self Cleaning Filter
•Longer Compressor Life
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Canovate Air Handling Solutions
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Wall or roof optimised connections
Highest water efficiency
Ultra-energy efficient unit pPUE below 1.2
Adiabatic system with full UV sterilisation
N+1 fan configuration for increased efficiency
Flexible configuration (50,100, 200, 300 and 400 kW standard unit sizes)
High mechanical cooling energy efficiency ratio (EER)
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Using Adiabatic Cooling technology means......
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COST EFFECTIVE
minimal maintenance requirements, minimal power infrastructure
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RELIABLE
by a minimum of moving parts, high quality components and high
quality finish
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ENERGY-EFFICIENT due to EC fans, dynamic control and elimination of a water pump
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ENVIRONMENTALLY FRIENDLY
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HYGIENIC
no still standing water, no algea, no legionella risk
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SAVINGS
up to 90% energy saving on conventional cooling system
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EXPERIENCE
more than 10 years of experience in cooling systems.
only water and air as cooling agent and low energy consumption,
low CO2 emission
A Case Sample Study for Riyadh /
Saudi Arabia
Thank you for listening !