June 2019

Special Focus: Process Optimization

Air-cooled steam surface condenser case study: Retrofit vs. revamp

It is difficult to revamp an existing air-cooled steam surface condenser (ACSSC) for higher throughput, since most ACSSC suppliers have changed to a single-tube row design and have discontinued their multi-tube row design.

Pramanik, R., Srinath, N. R., Fluor Daniel India Pvt. Ltd.

It is difficult to revamp an existing air-cooled steam surface condenser (ACSSC) for higher throughput, since most ACSSC suppliers have changed to a single-tube row design and have discontinued their multi-tube row design. The challenge is further exacerbated since the ACSSC handles steam under vacuum, and any maldistribution due to the geometric change (from multiple rows to a single row) can severely impact the performance of the revamped ACSSC, thereby negating the purpose of the revamp. The case presented here is for an existing multi-row ACSSC that needs to be revamped for a higher steam throughput by adding additional bays under the constraint of limited space. This article will discus

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