Strata, machinery, and coal in transit: their relative roles as heat sources
In this paper the belief that machine energy consumption is now the major cause of environmental heat problems in working districts is questioned. Attention is drawn to the fact that more mechanization means not only more power but more coal and greater rates of advance. If the coal cools appreciably in transit it releases heat at a high rate. The misleading nature of heat analyses which fail to take account of the storage potential of steelwork in a modern district is discussed. The results of a field investigation to explore the contribution of transit coal seemed to show that when coal was being produced 60 percent of the heat transferred was from the coal, with the balance from the machinery. The authors conclude that in deep mines the strata and cooling coal could make major contributions in roadways in high-output districts, with face machinery performing an important topping-up function.
- OSTI ID:
- 7311835
- Journal Information:
- Min. Eng. (N.Y.); (United States), Vol. 135
- Country of Publication:
- United States
- Language:
- English
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