Technical Specification for the Adiabatic Cooler for Brill Place

General description

Finned heat exchanger acting as a Drycooler

Certificates

Certified according to ISO 9001/2008
Certified according to ISO 14001/2004

Technical data

Capacity:	400.0 kW
Insufficient capacity:	0 h/a, max. 0 kW (0.0%)
Height above sea level :	36 m
Heat carrier:	Ethylene glycol 20 Vol. %
Max. operating pressure:	16.0 bar
Fluid volume flow:	71.21 m³/h
Fluid inlet temp.:	47.0 °C
Fluid outlet temp.:	42.0 °C
Fluid pressure drop:	0.27 bar
Air volume flow:	70492 m³/h
Air inlet temp.:	35.0 °C / 37.0 %
Air outlet temp.:	42.1 °C
Switch point:	26.1 °C
Hours of spraying:	103 h/a
Mean water consumption:	19.0 m³/a
Max. water volume:	0.34 m³/h
Required supply pressure:	2.0 bar
Heat exchanger surface:	1778.3 m²
Tube volume:	236.7 l
Number of fans:	5
Fan diameter:	900 mm
Speed:	560 min-1
Voltage/frequency:	230V / 1Ph, 50-60Hz
Current consumption per fan:	2.10 A
Capacity (el.):  per fan:	0.47 kW
Sound pressure level:	41 dB(A)
at a distance of:	10.0 m
Sound power:	74 dB(A)
Inlet connection:	2 x 88.9 * 2.00 mm
Outlet connection:	2 x 88.9 * 2.00 mm
Unit length:	6669 mm
Unit width:	1330 mm
Unit height::	2850 mm
Empty weight:	1687.5 kg
Manufacturer:	Güntner
Type:	S-GFD 090.4D/5-SD1C/2P.E

Design

Heat exchanger coil (double coil, V-shape arrangement)

Equipped with Güntner's proven floating coil design which prevents any contact of the refrigerant-carrying tubes with parts of the supporting frame.
Leakage through thermal expansion is prevented, thereby maximizing operational safety and service life.
Tube pattern 50.0 x 25.0 mm staggered in air flow direction
Core tubes plain copper Ø 12 mm
Fins made of Aluminum
Fin spacing 2.40 mm
Smaller fin spacings and slitted fins not accepted due to increased risk of clogging.
For testing purposes, all circuits are fitted with Schrader valves.
Outlet and inlet header  Copper
Drain and vent connection

Casing

Robust, self-supporting construction
Tested by means of tensile tests and FEM verification calculations.
Static verification regarding own weight, snow load, wind load and earthquake incl. proof by a certified external service provider.
Casing made of Galv. Steel
 
Varnishing RAL 7035 light grey

Axial fans

EC technology
Fans suitable for continuous speed control with Güntner Motor Management (GMM)
Drive motor, fan blades and supporting protection guard construction form a unit with optimal air guiding characteristics
Low-noise, maintenance-free drive motors
All fans are subject to the balancing quality Q 6.3 according to VDI 2060 (Association of German Engineers)
Drive motors with protection class IP 55
Windings of thermal class  F  acc. to DIN EN 60 034-1
A. c. motor(s) 230 V, 50-60 Hz
Temperature range fan -25.0 °C to 60.0 °C
Fan protection guards according to EN294
All axial fans are mounted in such a way that they can easily be accessed for servicing.
The thermal contacts are integrated into the motor windings.

Design options/accessories

EC fans with motor management GMM EC/08
Vibration Dampers SMA3
HydroSpray Professional

Connections:

Welding neck flanges DN80 PN16 B1 (DIN EN 1092-1)

HydroSpray

General

The patented operating mode Section Cycling* improves the capacity of the heat exchanger at high ambient temperatures. Used in refrigerating plants, it optimises energy consumption by lowering the condensation temperature. What's more, Section Cycling significantly reduces water consumption.
Spraying duration up to 1000 h/a

Solenoid valves

Industrial quality, protection class IP65, approved for temperatures up to +60 °C

Spray nozzles

Leeway-poor spraying pattern
Not susceptible to clogging and corrosion
Fast and easy to replace without tools
Colour-coded jet sizes

Connections

One water supply and one electrical connection per unit.
¾" threaded water connection on pressure reducer
On-site valves for spraying and draining required in frost-protected area

Unit design

The calculation is based on the climate data of (file date). 
Every hour of spraying is included in the calculation of the annual water consumption
Water pressure and nozzle size are calculated specifically for the respective project to determine the amount of excess water used to reduce dirt and deposits.

Water quality

Required water quality: Water hardness ≤ 2.0 °dH, electrical conductivity 50-600 µS/cm, chloride ≤ 150 g/m³, sulfate ≤ 150 g/m³, ammonium ≤ 0.5 g/m³, pH-value 6.5-8.5, colony forming units ≤ 1000 KBE/ml, legionnaires ≤ 10 KBE/ml. The water preparation (softening) has to be provided on site.
Attention: Water quality must be strictly observed!

Automatic drain

To prevent frost damage
To prevent the build-up of legionella and other bacteria in the system.
Automatic drain in the event of a power failure

Factory-mounted spraying system

Mounted ready to use
Wired ready to use
Made of PE tubes, with one nozzle per fan section
Rotatable water supply tubes that do not affect the transport dimensions
Spraying system has no high-pressure pump − high reliability and low maintenance

Spray controller GHM

Connected, wired and parameterized on a project-by-project basis
Setpoint-controlled spraying according to condensing pressure/fluid temperature
Sequential switching of sections according to spraying hours
Automatic draining
Automatic rinsing cycle to prevent the build-up of legionella and other bacteria in the system

*Güntner Section Cycling

Patented operating mode facilitates section-wise spraying, reducing annual water consumption by up to 50 % compared to HydroSpray Basic.