Experimental data are obtained for the overall heat transfer coefficient between immersed horizontal tube bundles and an atmospheric fluidized bed combuster burning high‐sulfur coal. Limestone (1000 μm size) is used as the bed material. Tests are conducted with coal and limestone addition at overall average bed temperatures ranging from 1028 to 1116 K, and fluidizing velocities ranging from 2.08 to 3.14 m/s. The overall heat transfer coefficients of the horizontal tube sections increase as the height from the distributor plate increases, except for the top tubes located in the splash zone. The average overall heat transfer coefficients of all horizontal tube sections increases as the fluidization velocity and overall bed temperature increase.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.