Stockpile moistureAggregate moisture content determines thefield productionrate.Sufficientairflowmust beprovidedbytheexhaust fan to handle exhaust gas components.In wetregions:differentsizehardwarenecessary (drum diameter, exhaust capacity)and higher cost)Minimizecost:ReducemoistureinaggregateLeaksinthefacility16August31,2025TTUDelft
August 31, 2025 16 Stockpile moisture • Aggregate moisture content determines the field production rate. • Sufficient air flow must be provided by the exhaust fan to handle exhaust gas components. • In wet regions: different size hardware necessary (drum diameter, exhaust capacity) and higher cost) • Minimize cost: • Reduce moisture in aggregate • Leaks in the facility
Air flowDry material (1% moisture)compared to wetmaterial(15%moisture).Total airflowhastobeincreased withafactorof 5The volume of steam and water vapouris thenincreased18timesConsequence:some drumscannot reachhighenoughcapacity17August31,2025TTUDelft
August 31, 2025 17 Air flow • Dry material (1% moisture) compared to wet material (15% moisture). • Total air flow has to be increased with a factor of 5 • The volume of steam and water vapour is then increased 18 times • Consequence: some drums cannot reach high enough capacity
horizontal bitumen tankshowing hot oil pipeslevel indicatorbitumenheating coilsoverflow pipecoils
August 31, 2025 18 horizontal bitumen tank showing hot oil pipes heating coils overflow pipe bitumen coils level indicator
xichn招国出品品电
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Much丰
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