Case Study Copyright © 2014 Power System Services Limited. | www.pss-uk.com. | Telephone: +44(0)1246 268 800. | Fax +44(0)1246 268 811 SCR Retrofit Electric Ireland Customer: Moneypoint (Ireland) To combat the potentially adverse effects of Air-Preheater blockage resulting from Ammonia Bisulphate build up in the heat exchanger Baskets, Power System Services calculated the temperature profile through the heater and established the exact region where this build up may possibly occur. Once the location of this plate surface temperature region, was established, engineered solutions were investigated to evaluate the most cost effective and reliable solution to this potential blockage issue. Key considerations for design evaluation were: • Ensuring the ammoni

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