DCN September 2017 - Page 36

sponsored case study Aquilar Provides Leak Detection for Dublin Data Centre H aving previously provided Leak Detection solutions to a number of large data centres in Dublin, Aquilar recently completed a project for a major internet company. Aquilar and its Dublin partner Cable Accessories worked together to support the local contractor during the design, installation and commissioning stages of the new data centre, having already built another similar site for the same client in the past. The new data centre houses servers that run some of the client’s highest profile products. The challenge As with all data centres, continuity of service is a priority to its clients and users. To ensure this, the client specified an on-floor water leak detection system with the ability to store and retrieve a CAD/.pdf drawing of the facility and leak detection routing. They required the ability to accurately pinpoint the location of the leak when an alarm is sounded and be able to visualise this on a screen. The project encompassed large and varied areas, including electrical rooms, battery rooms, data hall, the plant room, around 36 | September 2017 the CRAC (computer room air conditioning units) and the building envelope. In addition, fuel leak detection was required in the diesel generator room, in which UPS generators were in operation. ‘As well providing highly accurate and timely leak detection, Aquilar’s solution allowed for potential future expansions.’ TT1000 water sensing cable The solution To ensure that the client would be able to quickly and effectively pinpoint the location of any potential leak, Aquilar supplied the TraceTek digital touchscreen TT- TS12 Panel. The TT-TS12 provides a graphic user interface that manages and displays information from a network of up to 250 external TraceTek leak detection circuits - an excellent solution for a project of this scale. This highly intelligent product can track multiple leaks simultaneously, collecting data from a network of TraceTek Senor Interface Modules or wireless Mesh Transmitters, displaying the status of all leak detection cables and probes in a top level summary. The 12 inch full-colour, touchscreen panel features interactive and dynamic leak location maps, for user interaction and control. The location of any detected leak is displayed by a flashing icon positioned over the floor plan, piping layout or the photo of a single piece of equipment, at the user’s discretion. In addition, audible alarms, summary relays, serial data and web interfaces are all provided as standard features. Via MODBUS RTU, the panel communicates any alarm information to the building management systems for remote alarming and system status monitoring. Remote alarming is an essential part of ensuring that leaks are identified and dealt with as quickly as possible at any time of day. To complement the TT-TS12 panel, the TraceTek TT1000 water sensing cable was chosen for its ability to detect water leaks at any point along its length. As an added benefit, its flexibility allows for easy installation across large areas. In the plant room the AquiTron water sensing probe was chosen as the best suited product for the application. The five diesel generator rooms required a different solution to the rest of the project, so an AT-OPSEN (optical diesel sensor) was installed. The rooms contained UPS generators, which would ensure the continued running of the data centre in the event of National Grid power loss. An undetected diesel leak could result in insufficient fuel for these generators and a potential total loss of power to the data centre. In addition, an undetected leak would pose a major fire hazard, so effective detection was of paramount importance in this area. The AT-OPSEN was selected for its ability to detect a diesel leak within seconds. It can also be dried and cleaned in situ, allowing the system to be restored to normal quickly. Additional benefits As well providing highly accurate and timely leak detection, Aquilar’s solution allowed for potential future expansions. During the installation stage of the project, the products’ modular design assembly allowed systems to be configured in a way that was bespoke to the clients’ needs as there was no requirement to conform to fixed length factory standards.