Industrial Air Conditioning

Air conditioning is used in industrial applications to ensure correct operation of equipment that requires specific environmental conditions or to dispose of heat created by some industrial processes like welding. Data centres are core consumers of industrial cooling.

ABN Amro

ABN Amro

Sector
Air Conditioning Industrial
Application
Data Centre
Office
Technology Type
Refrigerant
Carbon Dioxide
Manufacturer
Star Refrigeration
Country
Scotland
Energy Efficency

The Dutch bank ABN Amro, uses a CO2 system to cool 15 high-performance servers at the data centre of its London branch. To provide a controlled climate for this hardware, the manufacturer, Star Refrigeration, designed and built a low-energy-consumption CO2 refrigeration system in 2006 to generate a total output of 300 kW. The carbon dioxide is recondensed with water at 6C via an indirect chilling cycle. The cooling is handled by ventilator units on the back of the server cabinets, where the carbon dioxide evaporates at 14C and absorbs the heat siphoned off by the fans. CO2 is reportedly well suited for IT climate control as it does not conduct electricity, helping to increase safety.

Advanced IT Cooling Solutions

Advanced IT Cooling Solutions

Sector
Air Conditioning Industrial
Application
Data Centre
Technology Type
Absorption
Refrigerant
Carbon Dioxide
Manufacturer
Trox
Manufacturer Country
Germany
Energy Efficency

Trox Advanced IT Cooling Solutions (AITCS) produces and installs CO2 based data center cooling solutions.
As a heat absorption device, the system removes the PC heat at source, reducing background room cooling to a minimum. The use of ‘non-water’ liquid CO2 eliminates the potential hazards of mixing water and electronics. Per kilogram, CO2 has seven times the cooling capacity of water, so the volume flows with smaller diameter distribution pipework is reduced.

Website

Asahi Brewery

Asahi Brewery

Sector
Refrigeration Commercial
Air Conditioning Industrial
Application
Brewery
Technology Type
Absorption
Integral
Refrigerant
Ammonia
Hydrocarbons
Manufacturer
Country
Energy Efficency
The company expects to save 400 million yen a year from the resultant energy savings.

Asahi Brewery aims to reach zero absolute greenhouse gas emissions by 2050. Their natural refrigerant journey began in 1999 with the installation of a co-generation energy system at their Nagoya plant, using ammonia absorption for air-conditioning and hydrocarbons for the beer vending machines. The company saved 400 million yen a year from the resultant energy savings.

Bayer Manufacturing Facility

Bayer Manufacturing Facility

Sector
Air Conditioning Industrial
Application
Chemical Manufacturing
Technology Type
Rotary Screw Compressors
Refrigerant
Ammonia
Manufacturer
York
Country
Ireland
Energy Efficency

The Bayer Chemicals Group commissioned York to build an ammonia-based refrigeration system at its primary plant in Leverkusen, Germany. This facility is one of the largest production facilities in the world, spanning roughly 600 buildings on more than one square mile, Bayer manufactures pharmaceuticals, dyes, rubber, polyurethanes and organic and inorganic products.The company chose ammonia because it is an efficient, economical and environmentally friendly refrigerant. The job was part of Bayer’s extension of the remote cooling system. The heat generated by all production-related processes is dissipated through a remote refrigeration plant with several refrigeration centers. Three different temperature levels are available for this process: 23, -4 and -49°F (-5, -20 and -45°C). Decentralized cascade chillers, also hooked up to the main supply, provide temperatures of -49°F and below. Bayer uses the remote refrigeration plant, which comprises several large units, to economically generate cooling energy and ensure a steady supply.In the York engineered refrigeration plant, two rotary screw compressor units provide cooling energy. The refrigerant, ammonia, is liquefied in condensers that are supplied with cooling water. The refrigerant is then fed into the liquid line through a sub-cooler and part-time jetting pumps as needed to supply the process loads. The overheated ammonia gas returned by the network is cooled in a suction separator and is then returned to the suction side of the compressor. The plant’s refrigeration output exceeds 5 MW.

Biosphere 2

Biosphere 2

Sector
Air Conditioning Industrial
Application
Research Centre
Technology Type
Refrigerant
Ammonia
Manufacturer
Biosphere 2
Country
USA
Energy Efficency

Built in 1991, Biosphere 2 research centre operates on an ammonia-based refrigeration system.  The 12,700m2 structure is comprised of high performance glass and a series of steel tubing. Using energy harnessed from solar-power, the system provides cool water for both ventilation, and for heat recovery by way of two 4,365 kW ammonia chillers. In order to provide heat recovery, water at a temperature of 4°C (39°F) was pumped into a storage tank containing eutectic salts, providing heat as the salt solution began to change phase.
In 2011, the University of Arizona purchased Biosphere 2, as a research centre to manipulate carbon dioxide in order to better determine its effects on climate change. The structure contains within it a number of biomes to simulate different ecosystems and has been built to last 100 years.

CO2OLtec

CO2OLtec

Sector
Air Conditioning Industrial
Application
Sports Facility
Technology Type
Transcritical
Refrigerant
Carbon Dioxide
Manufacturer
Carrier
Country
USA
Energy Efficency

The Power CO2OL system installation at the SNØ arena will be the largest transcritical CO2 refrigerant system in Norway consisting of three racks with a total capacity of 3,100 kilowatts, which will maintain temperatures at minus four degrees Celsius, with the ability to reach as low as minus 12 degrees Celsius, to help make it winter year-round in the ski hall.

Concordia University

Concordia University

Sector
Air Conditioning Industrial
Application
Ice Rink
Technology Type
Transcritical
Refrigerant
Carbon Dioxide
Manufacturer
Concordia University
Country
Energy Efficency

In 2013, the Concordia University ice rink in Quebec, Canada, was renovated to include a transcritical CO2 system, with heat recovery. Under the new system, the arena is able to operate 11 months a year, saving the university CA $40,000 a year on energy and maintenance costs.

Cornell University

Cornell University

Sector
Air Conditioning Industrial
Application
School
Technology Type
District Cooling
Refrigerant
Manufacturer
Cornell University
Country
Energy Efficency

Cornell University has a district cooling system that delivers 20,000 tons of cooling to its campus by pumping cold water into a heat exchanger from nearby Lake Cayuga. The system is designed to last 75-100 years and has reported energy savings of 86% over conventional, synthetic-based cooling systems.

Mr. John Andrepont of Cool Solutions; http://eia-international.org/putting-the-freeze-on-hfcs

Craven Regional Medical Center

Craven Regional Medical Center

Sector
Air Conditioning Industrial
Application
Medical Facility
Technology Type
Absorption
Refrigerant
Water
Manufacturer
Trane
Country
Ireland
Energy Efficency

The Craven Regional Medical Center uses a naturally-refrigerated double-effect absorption chiller, manufactured by Trane, to chill existing facilities.

DataGryd

DataGryd

Sector
Air Conditioning Industrial
Application
Data Centre
Technology Type
Absorption
Refrigerant
Water
Manufacturer
Con Edison
Country
USA
Energy Efficency