A decision analysis guideline for underground bulk air heat exchanger design specifications

作者：Hooman M^*; Webber Youngman R C W; du Plessis J J L; Marx W M

来源：Journal of the Southern African Institute of Mining and Metallurgy, 2015, 115(2): 125-129.

DOI：10.17159/2411-9717/2015/v115n2a6

• mine refrigeration
• water-air
• heat exchanger design
• decision analyser

This paper discusses a study that investigated different underground bulk air heat exchanger (>100 m(3)/s) design criteria. A literature review found that no single document exists covering all design criteria for different heat exchangers, and therefore the need was identified to generate a guideline with decision analyser steps to arrive at a technical specification. The study investigated the factors influencing heat exchanger designs (spray chambers, towers, and indirect-contact heat exchangers) and the technical requirements for each. The decision analysers can be used to generate optimized, user-friendly fit-for-purpose designs for bulk air heat exchangers (air cooler and heat rejection). The study was tested against a constructed air cooler and heat rejection unit at a copper mine(1). It was concluded that the decision analysers were used successfully. This tool (decision analysers) can be used by engineers for the efficient and cost-effectively design of heat exchangers.

• 出版日期2015-2