Transcript HUMIDIFIRST - Cooling Tower Maintenance Inc

Leader in Ultrasonic Humidification
HUMIDIFIRST’S HISTORY
 Designing and prototyping of Ultrasonic Humidifiers
begins in 1992 in Harrisburg, PA
 First patent applied for in 1993
 Shipped first equipment in 1994 to Boeing Co.
 Second patent applied for in 1994
 Manufacturing begins in Burlington, NC in 1994
 All manufacturing and R&D moved to Boynton
Beach, FL in 2000
Data Room Humidification
ASHRAE
Sets the Standards for the
Recommended Data Room Operating Environment
-Temperature
-Humidity
Reason?
-To Reduce the Risk of ESD (Electrostatic Discharge)
-ESD can damage electrical equipment
-ESD can cause errors in operation & readings
ASHRAE
2004
Recommended Data Room Operating
Environment
-Temperature = Low End at 68º F (20º C)
High End at 77º F (25º C)
-Humidity = Low End at 40% RH
High End at 55% RH
2004 ASHRAE Psychrometric Chart
68F
40%RH
77F
55%RH
ASHRAE
2008
Recommended Data Room Operating
Environment
-Temperature = Low End at 64.4º F (18º C) not 68F
High End at 80.6º F (27º C) not 77F
-Humidity = Low End “Dew Point” 41.9º F DP (5.5º C)
High End “Dew Point” 59º F DP (15º C)
But < 60% RH
Why Use Dew Point for Moisture
Control?
 Studies show ESD is function of:
-“Absolute Humidity” in Air,
Not “Relative Humidity” of Air
2008 ASHRAE Psychrometric Chart
High End Temperature is increased by 3.6º F
Low End RH is decreased to < 30% RH at 80º F
68F
77F
64.4F to 80.6F at
41.9DP to 59DP
Result ?
ENERGY SAVINGS!
Data Rooms can operate at:
- Higher Temperatures
- Lower RH Levels
This Encourages Economizer Cooling
How To Humidify Data Centers ?
1. Central Humidification
-AHU
-Ductwork
2. In-Room Humidification
-In-CRAC
-Wall Mount
-Free-Standing
Central Humidification
AHU Mounted
Central Humidification
Duct Mounted
Problems with Central
Humidifiers:
1. Economizer Means Outside Air
-Cold Air
-Wetting Risk
-Control Issues
-Location of Humidifier:
-Harder to Service
-Difficult to Monitor
2. Direct Injection Steam- chemicals in air from
boiler (needs heat exchanger—adds cost)
3. If Humidifier Must be Outside Data Room,
Corridor/Gallery is Preferable
Corridor/Gallery
In-Room Humidifiers
 In-CRAC Installation
CRAC Installation Photos
Problems with CRAC Humidifiers
-Cold Air
-Short Area for Evaporation
In-Room Humidifiers
1. Wall Mounted
2. Free Standing
Wall Mounted Mist-Pac Series
Wall Mounted Mist-Pac Series
Free Standing Mist-Free Series
Free Standing Mist-Free Series
Benefits of In-Room Humidification
1.
Direct Room Introduction of Moisture
a) Higher Output Capacity
2.
Better Control
a) Sense Room Moisture without
Concern of High-Limit Saturation
b) More Accurate. Particularly with
Individual Sensors
3.
Easier to Service
4.
Safety Overflow Control by Sensor and Drain
Piping
Mist-Free Series
Drain and Safety Overflow Ready
Mist-Pac Series
Drain and Safety Overflow Ready
HUMIDIFIRST  QUALITY FIRST