XP 40 Ref feedstock or other external


condition that causes the system to cool. Carrier Rental Systems recently supplied a temporary boiler package to a major water treatment plant in Dartford to address such a problem,


maintaining production until the issue could be remedied and a long-term solution found.


A HIAB crane and trailer was used to deliver a 2MW packaged boiler to site, supported by a 20,000l fuel tank. This was


connected by flexible pipework to the main flow and return heating coil using the customer’s flange connections.


Once installed and


commissioned, the boiler soon generated sufficient hot water to restart the biological process and production of methane was quickly re-established. The timely intervention overcame the need to remove the inactive contents from the bio-digester and start the process from scratch, saving time, money and lost productivity. Carrier Rental Systems is


also providing packaged Carrier AquaForce 30XA air-cooled screw chiller on a hire basis for use in biodigester facilities undergoing maintenance. Here, in a reverse of the above process, a chiller is used to cool the contents of


the biodigester in order to arrest biological activity.


In a recent example, Carrier Rental Systems supplied a high efficiency 100kW AquaForce chiller to an energy-from-waste plant in Reading, which was due for major maintenance work. The chiller was connected to the plant’s main process heat exchanger, enabling rapid cooling of the biodigester conten ts as they passed through. This quickly reduced the


temperature within the reactor vessel, progressively arresting biological processes, enabling maintenance work to commence. Marc White, director of Carrier Rental Systems, says: “The hire approach provides a highly cost-effective solution for such en ergy-from-waste plants based on a biodigester. In the case of heating during the initial phase, it overcomes the need to invest in permanent capital plant for customers, which would in any case no longer be needed after the first few weeks of commissioning. “At a more advanced stage of the production cycle, hire chillers are an excellent option in order to stop the activity within the biodigester, as they allow essential maintenance and upgrade work to be carried out much more quickly and effectively, and at less cost.”


Problem so low GWP Op


and eas


oblem solv W


solved with WP Opteon™ XP40


• Excellent efficiency and performance • Quick and easy replacement for R-404A • ASHRAE A1, non-fl ammable • One third the GWP of R-404A • Widely available and supported by


mable component manufacturers Refrigerant ( t (R-449A)


CASE STUDIES


“Opteon™ XP40 – the best solution for my customers”


David Wilkinson General Manager GEA Refrigeration UK Ltd


www.opteon.com Chemours


© 2016 The Chemours Company FC,LLC. Opteon™ and any associated logos are trademarks or copyrights of The Chemours Company FC,LLC. Chemours™ and t he Chemours Logo are trademarks of The Chemours Compan y .


www.acr-news.com 73


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