5 energy recycling, 4 effects of modern dewatering processes

Which statement is true?
1. mechanical extraction requires more energy than thermal extraction
2. thermal extraction requires more energy than mechanical extraction
3. the energy consumption of mechanical and thermal extraction is always the same
Which is not a thermal extraction method?
1. pressing
2. ironing
3. finishing
What is the aim of reducing the residual moisture by mechanical extraction?
1. lower specific steam consumption in the thermal drying processes
2. improved ironing and finishing quality
3. energy savings in the thermal extraction processes
How much steam is needed to evaporate one litre of residual moisture from a batch?
1. 0.1 to 0.5 kg of steam per litre of water
2. 1.0 to 2.5 kg of steam per litre of water
3. 3.5 to 5.5 kg of steam per litre of water
How can a reduction of the residual moisture after the press or spin be archieved?
1. increasing the ancillary times of the press or spin
2. reducing the cycle time of the batch washer
3. increasing the extraction temperature (e.g. by warm rinsing)
Which statement is wrong?
1. it should be aimed for even moisture retentions within a batch and from batch to the next
2. the drying process usually acts upon the articles with the lowest moisture retention
3. immediate processing of the items after extraction is essential for optimized finishing processes