Optimering Af Genvinding.pdf - Aarhus Maskinmesterskole Campus
Optimering Af Genvinding.pdf - Aarhus Maskinmesterskole Campus
Optimering Af Genvinding.pdf - Aarhus Maskinmesterskole Campus
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Abstract<br />
Side2<br />
Jesper Overgaard<br />
AAMS B6<br />
The following text is about optimization of the recycling system at Danish Crown in Herning. An<br />
analysis of the existing system shows various optimization opportunities. An energy balance presents<br />
the first point of attack, which is the scald tank. A study has revealed a high loss, which is reduced by<br />
covering and insulation. Calculations establish additional energy requirement, which is provided by<br />
the process water. To avoid purchase of district heating investigations of several options are<br />
initiated.<br />
The challenge is to achieve the desired temperatures with the recovery system while devoting the<br />
water. In order to achieve the high temperatures, the flow has to be lowered, but it is not coherent<br />
with cooling compressors requirements.<br />
By including a future investment, i.e. air compressors, the purchase of district heating could be<br />
reduced. To eliminate the need for purchase of district heating, a heat pump is supplied in the<br />
cooling system. The heat pump contributes to the heating water, but also to reducing the power<br />
obtained in the condensing unit.<br />
By implementing these systems in the existing system, the need for purchased energy is almost<br />
avoided.
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