[태양열산업 선도기업] Sehan Energy

Since its establishment in 2004, Sehan Energy (CEO Young-ho Kwon), which has the only highest-efficiency solar certification technology and products in Daegu and Gyeongbuk since its establishment in 2004, is a PVT natural circulation water heater and a smart farm applied solar hybrid that is evaluated as the future technology of the solar industry. I am concentrating on system development.

An energy-independent solar energy water heater using a solar and heat (PVT) composite collector preheats the hot water from the heat generated by the PVT collector, and transmits the generated electricity to the system. It is a natural circulation solar energy water heater that uses an electric heater that raises the temperature to around 50℃) as an auxiliary heat source. Using the PVT hot water system without a separate auxiliary heat source such as a boiler, it is possible to supply 100% of the load of hot water (hot water) in the house, and it has secured reliability and economical efficiency by minimizing overheating and excess energy in summer through optimized design. In addition, system failure diagnosis and follow-up management are easy through the implementation of low-cost PVT water heater monitoring, thus securing competitiveness in solar thermal systems.

An official of Sehan Energy said, “PVT collectors not only produce electricity and heat at the same time, but also have high energy output per unit area, which is effective for zero-energy buildings or buildings requiring installation of new and renewable energy. “Renewable energy that can be applied to residential buildings is solar It is limited to solar and geothermal systems. Among them, the supply of hot water load and the natural circulation solar water heater are proposed as a realistic alternative.”

The official emphasized that “the development of PVT energy independent water heaters that can supply 100% of the hot water load will be the most important technological factor for the supply of zero energy houses in the future.”

Smart farm convergence system demonstration

Sehan Energy develops and demonstrates the technology to supply cooling, heating and electricity required for newly built smart farm facilities and horticulture to a new renewable energy convergence system. The technology to be applied this time is’Solar & Combined Heat Source Heat Pump Hybrid System-Solar & CHS-HP Hybrid System’ △Solar & CHS-HP Hybrid System connected with dual vacuum tube heat collection system △ In case of Solar & CHS-HP Hybrid in conjunction with solar/optical composite panel

Stem, etc. will be demonstrated.

The core of this demonstration is to maximize energy supply and minimize heat pump driving power by using solar heat year-round while allowing solar heat and geothermal heat to play a complementary role.

The hybrid heat source type heat pump is prepared as a large-division operation concept so that it can be operated by dividing it into geothermal, hydrothermal, and air heat source types regenerated by solar heat to suit the characteristics of the application complex. In particular, a series of base loads during the winter season is a geothermal source + solar source heat pump with good winter performance, and an external heat source type heat pump that cannot handle additional heat loads that cannot be handled by a geothermal source + solar source heat pump. Plan.

In particular, the development of ICT-based integrated operation and control technology and fault diagnosis system for the control and maintenance of the SCHS-HP hybrid system linked to the smart farm is also promoted.

An official of Sehan Energy said, “Gyeongsangbuk-do and Yeongcheon-si are promoting’future smart farm complex (total 33,000m²) construction project (2021~2023 budget 12 billion KRW)’ in response to climate change. It plans to build a new building and use it as a demonstration complex.”