APPLICATIONS AND SOLUTIONS
Each Konvekta ER system is designed for specific applications with the flexibility to handle a wide range of added features.
Each energy recovery system is designed and optimized to meet the needs and operating conditions of the building while ensuring that maximum system efficiency can be achieved. This includes not only the design of each individual heat exchanger, but also the implementation and integration of a wide range of added features and system configurations.
These added features can be easily combined to achieve optimal performance. Consistent with Konvekta’s data-based approach, each system is designed and optimized in the Digital Twin process by the Syskon software tool. During operation, the entire system, including all added features, is optimally controlled by the Konvekta Controller at every operating point.
HIGH-EFFICIENCY ENERGY SYSTEMS (BASIC SYSTEM)
In the basic configuration, the energy contained in the exhaust air is absorbed by the heat transfer fluid in the exhaust heat exchanger and pumped to the heat exchanger in the supply air where it heats or cools the outside air.
MULTI-FUNCTIONAL ENERGY RECOVERY SYSTEMS
If the recovered energy is insufficient to achieve the desired supply air temperature, heat or cold can be added to the system with plate exchangers integrated into the water/glycol loop. This eliminates the need for heating coils and cooling coils in the air handling unit. This results in a smaller footprint for the air handling unit and reduced fan power.
ENERGY RECOVERY MULTIPLE ZONE SYSTEM
By interconnecting several energy recovery systems, different zones can be operated individually with a single hydraulic assembly. Such systems are extremely efficient, as energies within an interconnected system can be used according to demand.
WASTE HEAT UTILIZATION
External heat sources can be injected into the water/glycol loop and used to heat the outside air. This further increases system efficiency.
FREE COOLING
Excess heat from other applications such as server rooms or water-cooled lab equipment can be injected into the water/glycol loop. This means that the chiller is not used at all or only to a very reduced extent, further increasing system efficiency.
DEHUMIDIFICATION CIRCUIT (‘WRAP’-System)
The ERS is able to cool the outside air, and also dehumidify and reheat it simultaneously to a preset set point. Due to the heat dissipation during reheating, the outside air can be precooled by a precooling heat exchanger. This can reduce both the total energy demand as well as the peak demand of the chiller.
COOLING OF HEAT EXCHANGERS
The fins of a KONVEKTA heat exchanger can be directly sprinkled with water. Because of the combined heat and mass transfer, a high cooling capacity is achieved.
FILTER PREHEATER
To prevent air filters from becoming damp and causing health problems, part of the ERS heat exchanger upstream of the filter can be used as a filter preheater. The filter preheaters can be easily cleaned with a high-pressure cleaner because the fins of the heat exchanger are thick, flat and durable.
FREEZE PROTECTION/TARGETED ICING
If the temperature falls below the dew point at low temperatures, heat exchangers can ice up. Depending on the design, this is either prevented by a freeze prevention control sequence or targeted icing takes place to recover additional heat. In case of targeted icing, the Konvekta Controller ensures continuous operation by the unique defrosting process.
HEAT REJECTION WITH AN ENERGY RECOVERY SYSTEM
The ERS heat exchanger in the exhaust air is divided into sections. The first section is used as the ERS heat exchanger. The second section is used as an ERS heat exchanger in winter and as heat rejection for the chiller in summer.
ZERO EMISSION ENERGY RECOVERY SYSTEM (ZEERS)
By integrating a heat pump/chiller, the high-efficiency ERS can be operated without the use of fossil fuels and energy efficiency can be increased at the same time.