Open AccessDutch Experience With Hot Windbox Repowering
Author(s) -
P. J. Ploumen,
J. J. Veenema
Publication year - 1996
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1115/96-gt-250
Subject(s) - boiler (water heating) , combined cycle , rankine cycle , environmental science , nox , turbine , waste management , gas turbines , steam turbine , brayton cycle , engineering , combustion , power (physics) , mechanical engineering , chemistry , thermodynamics , physics , organic chemistry
The combination of a topping Brayton (gas turbine) cycle with an existing Rankine (boiler-steam turbine) cycle for improved overall cycle heat rate has been very successful in the Netherlands. In the years 1985–1989 10 gas-fired power plants with a capacity of nearly 4000 MW were substantially modernized by adding a gas turbine topping cycle. In all these cases the Hot Wind box repowering or Windbox repowering with a supplementary boiler option was chosen. Besides the improvement of the heat rate it was remarkable that a NOx-emission reduction was achieved between 50 and 85%. So far more than 500,000 hours experience with hot windbox is available. If NOx-reduction becomes very important windbox repowering is the best option to modernize power plants.