Mine Ventilation Handbook ((full))

Heat is the hidden output of modern mechanized mining. A 2024 mine ventilation handbook includes advanced psychrometric charts specific to high-altitude and deep-level mining. It teaches engineers how to calculate effective temperature (ET*) and wet-bulb globe temperature (WBGT). As mines dig deeper (exceeding 3km in places like South Africa's Mponeng mine), the rock face temperature can exceed 60°C (140°F). The handbook provides the thermal balance equations necessary to size refrigeration plants and cooling coils.

At the heart of every mine ventilation handbook is the Atkinson friction factor (K). This equation determines how much pressure is lost as air scrapes against rough rock walls or through narrow raises. The handbook provides standardized friction factors for different ground supports—from smooth concrete-lined shafts (low K) to rough blasted granite (high K). Modern texts now include Computational Fluid Dynamics (CFD) validation tables to correct the classic Atkinson equation for turbulent flow, which is prevalent in high-speed airways. mine ventilation handbook

You are sealing an old stope with shotcrete to reduce leakage. Heat is the hidden output of modern mechanized mining

Be cautious of "free PDF" versions floating around the internet. Many are scanned copies of the 1970s editions. They contain friction factors for wooden props and steam drawworks, which are dangerously irrelevant today. As mines dig deeper (exceeding 3km in places

"Mine Ventilation: A Practical Guide for the Operator" (published by the US National Institute for Occupational Safety and Health, NIOSH).