5 energy recycling, 5 energy recycling in dryers

What is the purpose of the drying process?
1. removal of all water
2. removal of as much water as possible
3. removal of excess water
Replacement of steam heated drying equipment by gas heated drying equipment
1. enlarges the energy consumption
2. lowers the energy consumption
3. has no effect on the energy consumption
The energy consumption of the mechanical dewatering step compared to the thermal drying step is
1. lower
2. the same
3. higher
Enlarging the pressure of the dewatering press will
1. enlarge the dewatering effect
2. has no effect on the dewatering effect
3. lower the dewatering effect
After dewatering in the press the moisture content of terry towel is
1. higher than that of PES/cotton (65/35)
2. the same as that of PES/cotton (65/35)
3. lower than that of PES/cotton (65/35)
The highest temperature during the course of a drying process is that of
1. the incoming air
2. the outgoing air
3. the textile
Recirculation of hot air in the dryer
1. will lower the energy consumption of the drying process
2. has no effect on the energy consumption of the drying process
3. will enlarge the energy consumption of the drying process
Extra textile wear can be caused
1. overdrying
2. a too high temperature of incoming air at the beginning of the process
3. a low level of mechanical dewatering
Frequent cleaning of the filters of the drying equipment
1. enables optimal air circulation
2. prevents greying of the textiles
3. improves the end-point determination
Present-day end-point determination techniques
1. are independent of the load in the dryer
2. will enlarge drying times
3. can prevent unnecessary textile wear

5 energy recycling, 5 energy recycling in dryers

Chapter 5 explains how to save energy in dryers.