Added value for builders
Economy – Sustainability – Guaranteed services
ECONOMICAL
Government subsidies
Due to the high CO2 savings, significant subsidies can be obtained, depending on the country and region. Due to the data-based optimization process, detailed and reliable energy and CO2 information is available during the design phase. This information can be used for subsidy applications. The continuous recording of data when the system is in operation makes it easier to prove that the savings submitted for funding are achieved in practice.
Subsidies are especially interesting in the context of renovations. Energy recovery in retrofit projects often achieves extraordinarily high energy and CO2 savings.
Cost reduction in other trades
An efficient ERS has a great impact on other trades. Since Konvekta system optimization provides detailed and reliable energy and performance data in the design phase, this information can be incorporated into the design of the other trades. This results in significant cost reductions for air handling units, piping, heating, cooling, and building automation. The costs of these trades are lower, since so much is already covered and guaranteed by Konvekta.
For a meaningful cost comparison, this integral view, based on comprehensive integral planning, is essential.
With a detailed, reliable design and a system that performs as designed, components, such as boilers and chillers can be down-sized:
- Detailed design of the high-performance ERS for all 8760 operating hours
- Performance Guarantee
- Proof of the guaranteed values
- Optimization of the ERS in the first year of operation to ensure optimal and trouble-free operation
- System monitoring with automatic reporting and analysis of the cause of any malfunctions
- Remote system access to address malfunctions
Cost security (from planning to execution)
The energy recovery system is designed from the start for operation over all 8760 hours of the year, instead of just for the winter design point and the summer design point, as is the case with conventional systems.
The impact on energy recovery and on other trades is significant. Close cooperation with the design engineer results in a detailed design and accurate budgets early in the design phase.
Minimum space requirement
Often there is little space available for ventilation in projects and valuable space needs to be used as efficiently as possible. Konvekta ERS meet this requirement in various ways.
Konvekta heat exchangers have a very compact construction and are less deep than conventional heat exchangers. They achieve higher recovery values than comparable systems and achieve recovery coefficients of over 80%.
The multi-functional use of energy recovery (feeding heat and cold into the water/glycol cycle) eliminates the need for heating coils and cooling coils which makes air handlers shorter.
This results in area savings of approximately 20-30% for the air handling units.
SUSTAINABLE
Optimized annual operation
Conventional energy recovery systems are designed according to nominal conditions at 40°F and maximum general conditions (maximum air volumes and extreme outside air temperatures). This determines the temperature efficiency/heat recovery coefficient and determines the peak demands that the ERS must cover.
In addition to this static analysis, Konvekta goes a step further with dynamic analysis over the course of the year. Using mathematical models in the Digital Twin process, partial load cases are verified over the course of the year on the basis of site weather data and taking into account the time-of-day usage. This optimizes not only a few operating points, but all 8760 hours of the year and the total energy recovery over the course of the year. After all, energy recovery – in terms of sustainability – is the real goal of the ERS.
Separated air streams (hygiene)
The supply and exhaust air are completely separated from each other. This can only be achieved with closed loop systems like the Konvekta ERS. Other energy recovery systems have leaks and result in cross-contamination. Complete separation of the supply air from the exhaust air creates a hygienic added value for occupants. This applies not only to rooms with exceptionally high hygienic requirements (such as in medical facilities or in the pharmaceutical industry), but is also a great advantage in general. Especially in times of pandemics, like with the Corona Virus, (a virus transmitted in aerosols), this became very clear. 100% fresh air for the building – 100% hygienic.
GUARANTEED PERFORMANCE
Proof of efficiency in operation
The efficiencies promised in the design phase and with the performance guarantee are continuously recorded, calculated, and archived during post occupancy. All energy quantities such as demand, recovery and theoretical maximum possible power are visible and verifiable on the controller at any time. This makes system performance and efficiency transparent and verifiable.
Temperature efficiency/heat recovery coefficient guaranteed
Konvekta commits itself to meet the guaranteed performance values. Underperformance can jeopardize certifications and increase energy costs which can have a significant effect on payback.
A performance comparison shown continuously
Konvekta systems consist of precisely sized components, which are specified, manufactured, installed, and optimized as an overall system. Mathematical modeling guarantees the reliability of performance data and energy recovery.
Konvekta systems not only display real-time operating data but also display theoretical data. The theoretical data is based on the performance mapping of the heat exchangers, the pump and valve data, and the current operating conditions.
In the energy calculation, these reference values are used to calculate the actual efficiency of the ERS which can be checked at any time. The values are displayed on a user-friendly dashboard. The Konvekta Eye, which has been intuitively designed according to the traffic light system, allows an immediate comparison between the system performance and the theoretical maximum possible performance. This is a crucial tool that, worldwide, is only offered by Konvekta.