| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Heat of compression | Mining | As air passes down shafts and along inclined workings, it is compressed. Heat is always generated when air is compressed, and although the reverse process of decompression and cooling takes place as the air ascends the upcast shaft, the net effect is to raise the air temperature underground. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
