Industrial Cookie Bakery

Heat recovery from a tunnel oven reduced gas consumption with 20%.

food industry - biscuit production in a factory on a conveyor belt
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food industry - biscuit production in a factory on a conveyor belt

4% boiler effiency increase

140 kW heat recovery

Payback time 1 year for equipment

Heat recovery from fouling baking vapours

The industrial bakery has the ambition to reduce energy consumption. In the production process of cookies many fatty ingredients are used like butter and chocolate. In the oven fouling baking vapours are extracted and currently released to the atmosphere at high temperature. The bakery would like to recover heat from these vapours to reduce overall energy consumption.

HeatMatrix Polymer Air Preheater

Because of the smooth surface of the polymer tubes the HeatMatrix polymer air preheater has a low tendency to foul. This aspect in combination with an in-situ cleaning system makes it the perfect combination for heat recovery at this bakery. A polymer air preheater was installed and cools down all the baking vapours from the oven.

20% reduction of oven gas consumption

Circulation air for the oven is preheated from 15 to 103°C, which results in a heat recovery of 140 kW and a reduction of the oven gas consumption of 20%. 

Specifications

Solution has a duty of 140kW
Flue gas flow 6,100 kg/hr
Temperature flue gas flow 163 °C
Fouling Sugars and fatty acids
Installed heat exchanger HeatMatrix Polymer Air Preheater
Process flow diagram (PFD) of a HeatMatrix polymer air preheater installed on an industrial bakery oven

Oven gas consumption reduced by 20%

"Installing the HeatMatrix polymer Air PreHeater resulted in energy savings of 20% in natural gas consumption. Furthermore, the temperature distribution of our oven improved, which resulted in more stable operation and a reduction in baking time."
Industrial Cookie BakeryHead of Technical Services
Industrial Cookie Bakery

For more than 10 years we design and deliver heat recovery systems for industrial factories

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HeatMatrix heat recovery opportunity scan for an industrial bakery
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