Heat recovery from surface water

This heat is then transferred to a heating system, for example a district heating system, by means of a heat exchanger. The technology is an alternative to fossil fuels and can be used in both small-scale and large-scale systems for district heating or industrial use. The advantages lie in the availability of the water, the low CO2 emissions and the reduction in operating costs, while at the same time relying on renewable energy sources.

Are you planning/operating a heat pump that uses lakes, rivers or even the sea as a heat source?

Perhaps you are also looking into the district heating substation for the district heating supply? Numerous framework conditions such as temperature and volume flow, heat exchanger technology, integration into existing infrastructures, economic and ecological aspects and water quality must be taken into account. For example, the substances contained in the water of your heat source can lead to undesirable effects in evaporators/heat exchangers depending on many parameters:

The implementation of effective and efficient heat extraction from surface water therefore requires detailed and specialist knowledge. If different parameters are precisely coordinated and configured in the optimum relationship to each other, risks can be minimized and bespoke solutions developed. Inadequate planning or the wrong choice of technology can result not only in high costs, but can also impair the efficiency of the entire system and increase the environmental impact.

The TAPROGGE applications of water extraction, filtration and tube cleaning systems for heat exchangers and evaporators provide process engineering solutions that lead to energy savings and ensure efficient operation in the long term. Our mature modular systems, combined with the application experience of 12,000 systems commissioned worldwide (including more than 100 systems in the industrial heat pump sector) also provide the perfect solution for optimum operation of your heat pump.

• TAPIS® water extraction system: Systems for water extraction that can be backwashed with compressed air offer downstream pumps protection against macrofouling
• Backwash filters of different series as necessary (pre-) filtration protect downstream objects such as evaporators of heat pumps and heat exchangers from macrofouling and blockage.
• Strainer sections with fixed or backwashable strainers as part of the evaporator cleaning system using the TAPROGGE process ensure reliable and permanent prevention of microfouling in the evaporator/heat exchanger tubes. The heat transfer coefficient remains comparable to that of a new system when the tubes are smooth on the inside.

Application-specific consulting

To exploit the full potential of heat recovery from surface water, it helps to have the specialist knowledge of experts who not only know the appropriate technologies and materials, but also develop bespoke solutions for your specific requirements. We are here to help and support you. With our knowledge of the specific risks such as micro- and macrofouling, the choice of materials, the design of heat exchangers and suitable cleaning strategies combined with our extensive experience in the analysis and optimization of heat transfer systems, tailored approaches can be developed for you. These include, among other things:

• Continuous cleaning of the heat exchanger tubes without interrupting operation
• Protection of the environment through chemical-free processes
• Use in straight-tube and, where applicable, U-tube heat exchangers
• Reduction of seasonal risks by avoiding icing during winter operation
• Use of materials that are adapted to the process conditions (e.g. corrosion-resistant)