Waste Heat Utilization

CompriVAP is an industrial heat pump system based on proven mechanical vapor recompression (MVR) technology. It is particularly suited for upgrading waste heat streams, especially from medium-temperature sources.

In the process, vapor is drawn in by an electrically driven compressor and compressed to a higher pressure level. This increases the temperature and energy content of the vapor, enabling it to be reused as valuable process steam.

• Reuse of warm liquid waste streams like wastewater, process condensate, etc.
• Utilization of gaseous waste media like exhaust air/gas, process gas, etc.

The system configuration depends on the specific application, the characteristics of the heat source, and the required steam parameters. A CompriVAP installation may consist of a single compressor or multiple compression stages. When liquid waste streams are used as the heat source, an additional flashing stage is integrated into the system.

• Reduced primary energy demand and lower CO₂ emissions through the reuse of liquid and gaseous waste heat
• Lower consumption of fresh steam and cooling water through more efficient use of existing energy resources
• Potential significant OPEX savings through reduced energy demand
• Fast and straightforward installation, including retrofit in existing plants
• Proven technology – already available for use on large industrial scale

• Detailed evaluation of available waste heat
• Pre-Engineering and tailored process design
• Careful selection of compressors from different OEMs
• Detailed engineering, procurement and constructionof the whole process solution incl. system integration
• Fact-based evaluation of CAPEX and OPEX aspects

At the heart of the VarioVAP system is a plate falling-film evaporator that serves as the central heat exchanger. Each heat source – typically individual vapor streams – is introduced into separate bundles designed as lamella heat exchangers within the evaporator. The thermal energy is recovered, converted into steam, and compressed to the desired pressure level by compressors.

The VarioVAP system is ideally suited for environments with multiple waste heat streams:

• Industrial plants: Especially effective for sectors involving thermal separation processes such as distillation, evaporation or drying – for example the chemical, food, pulp, paper or building materials industries.
• Industrial parks: Joint utilization of diverse waste heat streams from various facilities – either for reintegration into internal processes or for feeding into district heating networks.

The system can operate either as a stand-alone heat exchanger or in combination with an open heat pump system based on mechanical vapor recompression (MVR).

In this configuration, the generated steam is compressed to a higher energy level and can be supplied as high-quality steam to production processes or external energy networks as required.

• Centralized waste heat utilization with one system integrating multiple heat sources
• Lower resource consumption with reduced demand for fossil energy and cooling water
• Reduced CO₂ footprint Maximum energy efficiency through the use of previously unused waste heat
• High operational flexibility with scalable and reliable system design
• Compact design enabling easy retrofit and low maintenance

• Design and engineering of customized systems
• Engineering, manufacturing, procurement and delivery
• Integration into existing processes
• Optional: Flash tank systems for liquid media
• Installation, commissioning, maintenance and after-sales service