Technical Reports, Ventilation Planning, and Bulk Air Cooling

This set of flashcards covers the requirements of technical reports, factors influencing ventilation planning in mechanised mines, and methods/design considerations for bulk air cooling.

What are the essential requirements of a good technical report regarding its objective?

Determine the true objective and write the report in such a way as to achieve this aim and therefore avoid non-essential consideration.

How should facts be handled and analyzed in a good technical report?

All facts should be accurate and logically analysed.

What provides the basis for the final judgement in a good technical report?

The report must have sound recommendations and conclusions.

What are the requirements for brevity and relevance in technical reporting?

Brevity is preferred and irrelevant information should be excluded.

How should the subject matter be structured and presented in a technical report?

Subject matter must be broken down into small steps and be presented logically and systematically.

What is the goal for reader engagement in a technical report?

Keep the readers interested.

In a mine producing $80\,000$ tons per month with mechanised equipment and a diesel capacity of $4\,000\,kW$, what are the specific air-related aspects that influence ventilation planning?

Diesel fumes / DPM, Dust control, and Heat from equipment.

What infrastructure and system-choice factors influence ventilation planning in a mechanised mine?

Air losses to mined out areas, Ventilation of ramps, and System choice series/parallel.

What specific measurement and performance factors influence ventilation planning for diesel equipment?

Air requirements - $m^3/s/\text{rated kW equipment}$ and Equipment efficiency.

What safety risk is highlighted as an influence on ventilation planning for mechanised equipment?

Increased fire risk.

What are the two specific methods of Bulk Air Cooling mentioned?

Cascade Cooler (used in cooling cars) and Horizontal Spray Chambers (2 stage cooling).

What are the design considerations for Methods of Bulk Air Cooling?

pumping costs, volume of air to be cooled, positional efficiency, Size of excavation, and optimization of total owning costs.