| 摘要 |
<p>A combustion system having a combustor that includes tubing for carrying boiler water, a cyclone to recover solids from exhaust of the combustor and an external heat exchanger to recover heat from the solids, includes: a bypass for providing boiler water from the combustor to tube bundles of the external heat exchanger and a boiler water return for providing boiler water from the tube bundles to waterwall tubing of the combustor. A method and an external heat exchanger are also provided.</p> |
