Vertical Natural Circulation (VNC) HRSG designed for heavy cycling duty in the Brighton Beach Power Plant/Canada

摘要

Brighton Beach Power Station (BBPS) located at the site of the former J.C. Keith generating station near Windsor/Ontario, Canada is developed by ATCO Power Canada Ltd and Ontario Power Generation Inc. The facility will produce electricity for Coral Energy Canada Inc, an independent power marketer. This new combined cycle generation plant consists of two natural gas fired 172 MW (ISO) General Electric Combustion Turbine Generators (CTG) which are exhausting to two supplementary-fired Vertical Natural Circulation (VNC) HRSGs. The steam produced in the VNC HRSG is feeding one 220 MW Steam Turbine Generator (STG). Austrian Energy′s HRSG division received the contract for design, manufacturing and transportation to site of two VNC HRSGs for the BBPS in the fourth quarter of 2001. Commercial operation of the plant is scheduled to commence in the first quarter of 2004. In order to operate the plant commercially successfully, all plant parameters have been optimized. To meet this requirement the HRSG have been designed for high thermal efficiency, low flue gas pressure losses and the ability of daily cycling. Those requirements, especially the specific suitability for frequent cycling operation directed clients decision to select an HRSG using VNC technology for the BBPS, although this design, prevailing in Europe and certain Asian countries, is not commonly used on the North American continent.