Sentence examples for coal rank from inspiring English sources

First, lignites, the lowest coal rank, often contain recognizable plant remains.

The results show the general tendencies known for the influence of coal rank.

The results indicate that CPT is affected by coal rank, moisture, sulfur, and the experimental conditions.

Strikingly disparate combustion behaviors were observed depending on the coal rank.

Moreover, deduced ignition temperatures increased with increasing coal rank and decreased with increasing oxygen concentrations.

The influence of coal rank was examined by using a lignite, a sub-bituminous and a high volatile bituminous coal.

Results show that NMR transverse relaxation (T2) distributions strongly relate to the coal pore structure and coal rank.

A clear gradation of the char reactivity towards both O2 and CO2 with the coal rank was found.

Then, the effects of ambience temperature, oxygen mole fraction and coal rank on the characteristic ignition delay are examined.

Different varieties of coal arise because of differences in the kinds of plant material (coal type), degree of coalification (coal rank), and range of impurities (coal grade).

Results show that NMR transverse relaxation (T2) distributions of the water saturated cores strongly relate to the coal pore structure and coal rank.