Abstract: Empirical equations were developed giving minimum air and power requirements for the vacuum and pressure transport of crushed coal through horizontal pipelines. The test system included 2-, 4-, ...

Abstract: Empirical equations were developed giving minimum air and power requirements for the vacuum and pressure transport of crushed coal through vertical pipelines. Data used in the development were ...

Abstract: Pipelines were installed aboveground at the U. S. Bureau of Mines, Morgantown (W. Va.) Energy Research Center, to develop and evaluate different types of systems—vacuum or pressurized, horizontal ...