A dyeing process consists of 3 phases:
1. Bleaching operation
2. Dyeing operation
3. Washing and rinsing operations
~ Approximately 6 to 12 steps.
Most of these processes ( 50-70 %) require hot water usage and hot discharge.
An ambient water temperature needed for each of the hot processes is heated by steam up to the necessary degree.
For example:
Let's suppose that we need 85 ˚C temperature in any given part of the dyeing process.
The water in an approximate room temperature of 20 ˚C is taken and heated up to 85 ˚C. Considering that the water heating speed of a dyeing machine is 3-4 ˚C per minute, the waiting period will be (85-20)/3 = 22 minutes.
If ErkaMaX ® Energy Recovery System is used and if we consider that the discharge temperature is 85 ˚C, it drops down to through loss of energy.
ErkaMaX® Energy Recovery System will provide you with 75 ˚C hot water through usage of the 85 ˚C (80 ˚C) waste water.
In this way, the waiting period will be dropped down to (85 -75)/3 = 3 minutes .
It's clear how much energy could be saved / recovered if we calculate the amount of time saved for each step throughout the process as well as throughout the day for each machine and the total usage throughout the dying plant for all the machines.
In addition, if the amount of fuel needed for the heating process is calculated, it will be perfectly clear how much fuel is saved and that how this reflects itself in the dramatic drop in costs.