On Compressed-Air Machinery for Underground Haulage

Ergonomic and Existing Seat Designs Compared on Underground Mine Haulage Vehicles

NIOSH researchers conducted a study to compare seat designs on underground coal mine haulage vehicles. The objective of the study was to support prior findings that NIOSH-designed seats, which incorporated ergonomic design features (e.g., viscoelastic foam padding and low-back support), are improved designs. Based on measured levels of vehicle jarring/jolting and perceived discomfort, researche...

Compressed Air Energy Storage: Matching the Earth to the Turbo-machinery- No Small Task

Compressed Air Energy Storage (CAES) is a process for storing and delivering energy as electricity. A CAES facility consists of an electric generation system and an energy storage system. Only earth based geological structures can currently store adequate potential energy in the form of a pressurized air mass required by commercial electric turbines. Earth based structures suitable for service ...

BBUNS: Bluetooth Beacon-Based Underground Navigation System to Support Mine Haulage Operations

A Bluetooth beacon-based underground navigation system (BBUNS) was developed to identify the optimal haul road in an underground mine, track the locations of dump trucks, and display this information on mobile devices. A three-dimensional (3-D) geographic information system (GIS) database of the haul roads in an underground mine was constructed, and the travel time for each section was calculat...

Compressed Air Energy Storage

Compressed Air Energy Storage