In Poland there are many industries which use water for cooling within the manufacturing process.
The first group are processing plants producing, i.e. dairy, all kinds of concentrates, sauces, marinades in jars (pickled bell peppers, mushrooms, corn, beans, green peas) and meats.
The second group are plants that use water to cool its installations. This group includes biogas plants, power plants, combined heat and power plants, sugar plants, dairies, meat processing plants, fruit and vegetable storage and processing plants, breweries, pharmaceutical plants, steel and glass works, cement plants, etc.
The heat generated in such production plants is called waste heat.
Water, after receiving heat during the cooling process, usually has a temperature of 80-100°C. It must be cooled before it can be recirculated to the production process. Effective cooling of large amounts of water is associated with the need to provide adequate, often expensive installations, the operation of which also requires constant expenditure related to maintenance and power supply. Installations commonly used for cooling water give off the heat into the atmosphere. The air cools the water by taking the heat from it. Its temperature after cooling the water is too low (35-45 ° C) for heat recovery.
In search for solutions that allow recovery of waste heat, generated by some industries in very large quantities (up to 2MW), the logical step is to recycle it in industries characterized by high energy consumption. The ideal solution is to install an on-site dryer with a suitable heat exchanger.
Our company produces dryers using waste heat with the ability to reach a drying temperature of 65 ° C.
On November 8, 2019, we were invited to the ceremonial opening of the Agricultural Biogas Plant and the Fruit Dryer facility in the municipality of Michalów Kolonia, Poland. After the solemn inauguration, we listened to a presentation at the Integrated Renewable Energy Sources conference. Waste heat from biogas plant will be used to power our dryers, which will produce delicious and healthy dried fruit. Therefore, instead of a water cooling installation, which has construction costs, generates operating costs and does not enable recovery of waste heat, an installation was created that utilizes waste heat with profit for the investor. We are particularly proud of this project because we can be part of an eco-friendly undertaking that results from caring for the natural environment.