Waste heat recovery from refrigeration equipment offers the greatest potential, from a single action, to reduce energy costs and relieve the impact of global warming on the environment – especially in all areas of food processing and food retail!
Cooling and heating requirements exist in almost all food-processing plants.
Refrigeration is essential for the safe production and storage of the product and goods. Simultaneously, a large amount of hot water is used for general hygiene purposes and deep cleaning. The cooling process creates waste heat energy, which is a perfect energy source for water heating using the DK-Heat Recovery: Free hot water!
All companies – small, medium and large, that operate refrigeration systems and consume hot water for their sanitation use or heating systems, will benefit from the availability of free hot water.
These companies have refrigeration systems for keeping goods fresh. Whilst at the same time, are using a large amount of hot water for general hygiene, equipment cleaning and as part of the food mixing and cooking process. All cooling systems generate waste heat, which can be used to heat this water with the help of DK heat recovery.
This means: hot water for free and less work needed from the hot water boiler.
Too many refrigeration systems still go into operation without heat recovery – an unused opportunity to relieve the environment. After the shut down of the last nuclear power plant in Germany in 2022, the power supply will be ensured by conventional power plants, as renewable energies cannot always provide the necessary amount. An important step to reduce CO2 emissions is to save energy. This is the only way to ensure that the required energy does not have to be produced in the first place – neither by nuclear power plants, conventional power plants nor renewable energy sources.
You can find more information about our systems in the > Downloads.
DK is recognised as the supplier with the largest product range of heat recovery solutions in Europe, and we are confident that we have a solution for every application from the family butcher’s shop on the High Street to the largest food processing factory on the planet.
The advantages of DK systems contribute to…
Applications
For single cooling units and for small compound systems with pressure-pipes dimensions till 35 mm
Advantages
Applications
For larger compound systems with pressure-pipes dimensions till 108 mm.
Function of an external heat exchanger
Energetic control of the legionella circuit plus optimum corrosion protection
The entire storage tank is heated by the DK Hygiene Kit to the desired target temperature within the required period. If the desired temperature has already been reached by the waste heat from the refrigeration system, the legionella protection function is not activated. This new economy function minimizes the need for additional external energy!
In addition, there is no need for any installation work, as the pump and the piping are already firmly mounted on the tank.
Also integrated in the DK-Hygiene Kit is a maintenance-free and durable corrosion protection to maintain the value of the storage tank.
Advantages
Applications
Function principle
DK heat recovery with internal heat exchangers
At a higher performance of cooling unit and no demand of warm drinking water you can use the waste energy for heating. Especially supermarkets use DK products for heating.
Copper heat exchangers in single walled version are fitted in raw steel tanks.
Vorteile
• This system works without loading pump to safe energy and costs.
DK heat recovery with internal heat exchangers
At a higher performance of cooling unit and no demand of warm drinking water you can use the waste energy for heating. Especially supermarkets use DK products for heating.
Heat exchangers made of a copper shell tube with internal single walled ripped pipes are fitted to a raw DK storage tank or directly on the compound system.
Advantages
DK heat recovery is installed directly in the refrigeration circuit between the compressor and the condenser. Where the discharge gas is at its hottest.
Assumed values
In many European countries, commercial and industrial companies can apply for grant funding towards the cost of investments in waste heat recovery installations. Please contact our European partners for guidance for your area. Currently, there are generous subsidies in Belgium and France, among others. This helps to minimize the initial installation costs and offer attractive payback times.
Take a look at our > references and see for yourself that cold and heat harmonise perfectly – and that in many companies!
Our experts will be happy to advise you on the subject of heat recovery. Based on your company, we go through the options for integration and promotion, as well as for savings. Contact us today and benefit from DK heat recovery. We look forward to your inquiry.
Timo Kappenberg
order processing
