The environment is becoming one of the major issues of our times. We take environmental protection very seriously. So far, the application of alternative energies is rather restricted so that baking ovens are operated by electricity, gas or oil.
wachtel is continuously developing and testing new ideas. For example heating with eco-friendly wood pellets is a current subject. It is our task to look for options to conserve energy while at the same time offering the user true economic benefits.
wachtel Energy Management by Computer Control
By recording operating data, it automatically recognizes how much baking surface must be ready for baking at a given point in time. The control operates under the assumption that for production, the utilization of baking capacity is different at different times and days. For example, on Saturdays more baking surface is used than on the other days of the week. Week by week, the self-optimizing control saves the required baking surface based upon the preceding week’s data and automatically switches required capacity on or off. This intelligent procedure saves a considerable amount of energy. The potential savings are 7 – 10% for production baking and even 15 – 20% for in-store baking. In the end, it is of course the baker who determines the baking surface to be used. Independent of the system, he can control his oven as it suits himself.
The Stand-by ECO button
The ECO button is a standard feature of all computer controls. It takes into account the fact that the complete capacity it not always required. At home, the television is of course switched off when nobody watches any longer. The ECO button has the same purpose. After pressing the ECO button, the baker enters the target time at which the oven should be ready for baking again. The oven does the necessary calculations and is again ready for baking at the desired point in time. Using the ECO button potential energy savings are ca. 6 – 10 % for production baking and 10 – 20% for in-store baking.
The “Ready for baking” timer
It is not the user who determines the oven start time but the oven’s computer control. The user enters the effective ready-for-baking time and the rest is taken care of by the computer. The oven respectively individual groups of decks are automatically heated to a level which assures that by taking into account all relevant factors the desired baking temperature is reached about 10 minutes before the set time. Decks that are still warm are switched on later, depending upon their residual temperature. Resulting energy savings: between 3% and 5%.
wachtel Energy Hamster
The flue gas generated by gas and oil heated baking ovens is discharged through the chimney at a temperature of 200 to 300°C. A part of the thermal energy of the hot exhaust gases can be recovered and used to heat process water.
The energy hamster supplied by wachtel is a heat exchanger installed in the exhaust duct between boiler and chimney. Inside the device, water flows though a heat exchanger and absorbs a large amount of the thermal energy of the heating gas.