Central condensate and exhaust gas heat recovery system using the heat exchanger principle.

• Central system, can be used for a variety of baking ovens.
   
• Highest level of efficiency overall thanks to the separation of flue gas and steam.
   
• Recovers an average of one fourth of the energy consumed for baking - this corresponds to a system efficiency of up to 37%.
   
• Heat exchanger based on the internal bare-tube principle with condensate drip tray.
   
• Sulphur dioxide-flue gas washing unit with CaCo3 neutralisation.
   
• Constant total draught due to forced suction (central fan with frequency converter PID control).
   
• Automatic, dynamic draught adaptation for each baking oven.
   
• Individual draught controllability for each baking oven.
   
• Low material and installation costs for the pipework.
   
• Highest operational reliability due to MIWE bypass.
   
• MIWE TC control system.

High energy recovery
by means of separately processing flue gas and steam

As a standard feature, flue gas and steam are fed in separately for heat recovery in the MIWE eco : nova. Due to the laws of physics, thermal energy from both material flows can only be used to the full extent when the flows are further processed separately for heating water over 60°C (which is practical in the bakehouse). The higher energy content of the steam can only by used when the flows are kept separate. The total efficiency of the heat recovery is six times as higher as in processing where the material flows are mixed (see diagram).
The actual high energy recovery co-efficient can be seen directly in economic terms, too. Fast amortisation means flexibility in further investment planning.

Temperature-independent baking results
thanks to dynamic draught adjustment

Developed for special requirements in this bakehouse, the dynamic draught adjustment ensures that the specific draught required for each individual oven remains constant. A constant mechanical adjustment for each oven is no longer necessary. In addition to that, an uneven chimney draught due to the climate is hardly of consequence any longer because the dynamic draught regulation of the MIWE eco : nova works directly in the run-around coil system (where fluctuations in the natural chimney draught due to atmospheric conditions can influence the baking result) greatly improving the evenness in the baking result.

Individual draught regulation for each baking oven as an additional parameter to optimise the baking process

All baking parameters under precise control! The draught can be set to an exact value within a wide control range. Depending on the requirement, a strong or a gentle draught can be set to remove the steam from the baking oven.This plays a crucial role in the evenness and quality of the products and prevents fluctuating climate conditions from affecting the baking result.

Highest operational reliability with MIWE bypass

Even in the most unlikely event of a malfunction on the MIWE eco : nova, normal baking operation can continue without downtime thanks to the integrated bypass, a kind of redirection of the material flows past the MIWE eco : nova. A clever construction as a measure against supply shortages and loss in sales.

Easy-to-clean smooth-bore tube principle

The MIWE eco : nova functions according to the smooth-bore tube principle making its heat exchangers easy and convenient to clean unlike commercially available finned-tube heat exchangers that have neither good self-cleaning properties nor are convenient to clean manually.

Integrated flue gas washing
for environmental protection

With integrated limestone filtering, sulphur dioxide in the flue gas is neutralised naturally. This allows purified air to leave the heat exchanger and the MIWE eco : nova makes a significant contribution to protecting the environment.

Easy operation with MIWE TC

Complex functions made easy to operate. That's what makes the Touch Control MIWE TC, also in the MIWE eco : nova better than the rest. All the data in view all the time - from vacuum and temperatures reached, right up to energy recovered. Moreover, comprehensive statistical information of all the data can be displayed. This makes it possible to adjust the processes in the bakery for energy saving baking.

A central unit as a cost benefit

The advantages of the MIWE eco : nova as a central unit can already be seen right at the initial investment. Instead of having one chimney for each individual oven, just one exhaust (and thus only one opening at the installation site) is necessary for the central MIWE eco : nova. One forced-suction fan with frequency converter PID control replaces expensive chimney stack fans for each oven. Also for the pipework, the savings in material and installation costs are considerable.
A further advantage of this central system is that in the case of necessary modifications (e.g. due to regulatory requirements), changes need to be made on one system only.

The concept from a single source

Planning, design, oven technology, MIWE eco : nova, service - MIWE offers the solution from one source. The entire concept is always aimed at achieving the best possible baking result.