Application Note

A True Condenser Tube Restoration Compostilla Power Plant

Source: CTI Industries

By Peter Tallman - Cti Industries, Inc.
Jose Manuel Armesto Gomez - Endesa
And Fernando Millan - Sirem

Endesa’s Compostilla Power Plant is located in Ponferrada (León), Spain, commissioned in 1964. It is a coal-fired power plant with a capacity of 1292 megawatts spread across five (5) turbines, which are a combination of Westinghouse and Mitsubishi.

The cooling water for the steam condenser is a closed loop system, coming from a cooling tower with water from a local reservoir in unit 4 and 5, and open loop in 1, 2 and 3.

The Unit G-4 condenser was started up in 1981. The unit consists of 24,740 tubes, 800 of which are in the Air Removal sections. The 800 Air Removal tubes are 1” O.D. Type 304 Stainless Steel. The main body of the condenser tubes (23,940 nos.) are made of Admiralty Brass, Alloy C44300, 1” O.D. (25.4mm) x 18 BWG (.049”/1.245mm wall thickness) x 30’3” long (9,220mm).