No abstract

No abstract

No abstract

This paper is based upon experience gained from evaluation tests, sponsored by individual coal producers during the past 12 years, to determine the suitability of various coals for use in residential underfeed stokers of the clinkering type. The conclusions reached through the evaluation tests are in general agreement with the marketing experiences of the producers in the field. Comparisons are also made between the characteristics of the coals as determined by the evaluation tests and data determined by standard laboratory-test methods. Correlation in this regard was not good.