Free cooling with water
Free cooling with water is an economic and environmentally friendly alternative to producing cold. In fact, many countries around the world have installed free cooling to protect their data centers with fantastic results.
When utilizing free cooling as your chosen source, less mechanical cooling is required. That means fewer harmful refrigerants and fossil fuels are necessary to keep systems running.
Thanks to our continuous research and development strategy, we can supply products for any cooling application, regardless of cooling media or source. In other words, we can utilize any kind of aggressive cooling media you want to use. This covers everything from sea and brackish water, to river and well water.
Plus, with a plate heat exchanger in your system, you can isolate the chilled water loop from all your sensitive equipment. So, you can confidently eliminate any potential for corrosion, scaling or constant maintenance.
Adding a heat exchanger to a free cooling system will also require less space, so it is an extremely compact solution. Please note that in sea and freshwater applications, we recommend you use a filter to protect your heat exchanger.
With that said, we at Alfa Laval have so much more to offer than outstanding products. We are always available to use our leading expertise and provide quality solutions to any of your production needs.
Free cooling with a chiller
In the spring and autumn, a combination of free cooling and chiller-produced cold is used, whereas in summer, the chiller does most of the cooling alone. Water is a form of free cooling and can come from rivers, lakes, (deep) oceans, ground water, ice and snow storage.
Free cooling with a chiller bypass
Producing electricity often involves air pollution, so reducing the electricity consumption of your chiller has a positive effect on the environment. Installing a chiller bypass system will save costs and improve the PUE and CUE value of your system. Plus, it will help cover cooling requirements during periods when the free cooling source has lower temperatures than your chilled water, like winter.
Savings across many dimensions
Using free cooling with water and a well-designed gasketed plate heat exchanger improves the cost-efficiency and sustainability of your data center in many ways. We know this because using AHRI performance certified heat exchangers has been proved to reduce your power usage effectiveness (PUE) by 2 %. It will even decrease the carbon usage effectiveness (CUE) of your facility by the same amount. Plus, a heat exchanger in your cooling system enables more efficient heat recovery and lower OPEX as a result.
Design your system for maximum profitability
Designing heat exchangers for a datacenter is different to designing for HVAC-applications. Firstly, we need to find the right temperatures for a continuous cooling process. Then there are other important design parameters to consider and calculate, like flow rates, turbulence, fouling, and pressure drop.
A heat exchanger that is designed correctly will increase cooling system reliability and maintain high efficiency levels. At Alfa Laval we can help you optimize your cooling needs with our proven heat exchanger solutions and leading expertise in datacenter cooling.
Watch this video with our expert, Gemma Reeves, to learn more about how to design heat exchangers for free cooling with water in a datacenter.
The benefits of a gasketed plate-and-frame heat exchanger
- Enables bypassing of chiller for free cooling when outdoor temperature and climate allows
- Reduced use of water and pumping costs thanks to cleaner pipes and minimized flushing needs
- Reduced maintenance costs for downstream cooling equipment
- Improved uptime with no unplanned shutdown due to corrosion issues
- Simple and easy cleaning of heat exchanger by single operator in just a few hours
- Certified performance in accordance with AHRI regulations
Cooling loop protection
A cooling system that incorporates a heat exchanger and an Alfa Laval Filter can be used to cool the most sensitive process equipment, even with polluted or corrosive water. The Alfa Laval Filter (ALF) is integral to any heat exchanger cooling system, as it removes debris that can foul and clog heat exchangers.
Without the Alfa Laval Filter, mussels, seaweed, and other forms of marine life can settle on the heat transfer surfaces, even after effective screening at the water intake stage. The growth conditions in the cooling system are ideal for these lifeforms, which increases their multiplication rate and causes less effective heat transfer. In many cases they can even cause heat exchangers and other equipment to breakdown.
Watch this movie to learn more about the ALF solution.
The benefits of an ALF filter
- Heat exchangers are protected from debris and marine life
- Increased cooling system uptime
- Lower maintenance costs
- Ensures continuous GPHE performance, even when backflushing
- Backflushing is performed automatically without interrupting the filtering process
- Easy installation and maintenance
- Proven & reliable technology
- Full support from Alfa Laval Service teams throughout equipment lifecycle
Discover the future of green IT with Alfa Laval
Alfa Laval has supplied solutions for cooling server rooms since the earliest days of the internet. Today, we offer a wide range of solutions for data center cooling, all backed by a worldwide service network with experts who understand your business. By partnering with us as you begin planning your data center project, we can help you design a system that ensures you get maximum cooling efficiency and reliability.
알파라발 전문가는 장비의 성능을 검토하고 분석합니다. 모든 유지 보수를 예측하여 시스템 가동 시간 최적화 계획을 세울 수 있도록 최신 도구를 사용해 오염이나 기타 위험을 감지할 수 있습니다.
오염이 발생하면 알파라발 CIP(현장 세정) 시스템을 통해 장비를 분해하지 않고도 열교환기를 빠르고 쉽게 인라인 세척할 수 있습니다. 알파라발은 환경친화적이며 쉽게 생분해 가능한 세척제를 항상 사용합니다. CIP를 시행하면 장비를 반복적으로 불필요하게 개방할 필요가 없습니다. 따라서 예비 부품 소비와 유지 보수에 투입되는 인시(man-hour)가 크게 줄어듭니다.
역류 세척 장비
알파라발은 짧은 시간 동안 빈번하게 유입되는 냉각수 흐름에 대해서는 역류 세척 시퀀스를 권장합니다. 이 시퀀스에서는 물이 역류하면서 판형 열교환기 표면에 축적된 이물질을 긁어내고 세척합니다. 역류 세척 장비를 사용하면 시간과 비용을 절약하고 가동 중지 시간을 최소화할 수 있습니다.
Ready to learn more?
Want to find out how we can boost the cost efficiency and sustainability of your data center with smart cooling tower solutions based on leading plate heat exchanger technologies? Contact us today, and our experts will be in touch!