5 Energy recovery (optional)
5.1 Energy recovery unit
Description
A large part of the energy required for any compression process is transformed into heat. For GA oil-injected
screw compressors, the major part of the compression heat is dissipated through the oil system. The Atlas
Copco energy recovery (ER) systems are designed to recover most of the above-mentioned heat by
transforming it into warm or hot water without any adverse influence on the compressor performance. The
water can be used for diverse applications.
Components
The energy recovery system is completely integrated and mainly comprises:
• Stainless steel oil/water heat exchanger
• Selector handle (V1) to enable/disable Energy Recovery
• Thermostatic by-pass valve for energy recovery heat exchanger(s) (BV2)
• Two temperature sensors for water inlet and outlet control (3 and 4)
• The necessary bolts, flexibles, etc.
Energy recovery unit (ER-unit)
Main components of the ER unit
Reference Designation
1 Water inlet pipe
2 Water outlet pipe
3 Temperature sensor, water inlet pipe
4 Temperature sensor, water outlet pipe
Instruction book
62 2920 1634 04
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