Construction Infrastructure Service
We are the provider of total services with all the processes of planning and proposal, consulting, designing, construction,
A/S service for construction facilities, civil engineering facilities, and energy rationalization.
We construct various systems, such as buildings, apartments, tunnels, roads, harbors, railways, subways, and bridges, ensuring safe and efficient operation.
New and renewable energy
Summary
The new and renewable energy sector is divided into terrestrial heat, solar power, Fuel cell, and EMS. Our businesses in various areas include buildings, plants, apartments, roads, and tunnels, for the production of new and renewable energy, reduction of energy consumption, and effective integrated management.
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- Terrestrial heat
- Open type
- Building-integrated type
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- Solar power
- Stand-alone type
- Grid-connected type
- Building-integrated type
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- Fuel cell
- For building
- Terrestrial heat
Terrestrial heat-based heating/air-conditioning system
- Environmentally friendly system that does not use fossil fuels (only electrical energy)
- Using a subterranean heat source (15±5°C) that maintains a constant temperature throughout the year and a heat pump with high efficiency
- Management of heating/air conditioning and hot water supply at the same time with a single system
- System efficiency of more than 300%
Analysis of the strengths and opportunities of geothermal systems
지열 시스템의 강점과 기회 분석 정리한 표. Strength Opportunity High efficiency (over COP 3.0) COP : coefficient of performance
COP = Production energy / Consumption energy
COP 3.0 = Efficiency 300%- Application of a system unaffected by external temperature and moisture conditions
- No need to store or manage inflammables, previous energy sources
- Uses electricity unaffected by progressive tax as consumption energy
- Uses a system that decreases C02 emissions
Open-type method to prevent shot cut
Features of the Open-type method- Performance : about 100kW/hole (based on 500m)
- Fill the space between the inner pipe and the hall with filler
- Install the perforated drainpipe to the floor
- Prevent sinking and improve heat exchange rate
- Applicable to large fields with high-capacity, high-efficiency way - Solar Power
Photovoltaics System
- A new and renewable energy system which produces electricity using sunlight
- Its major components are modules composed of solar cells, inverters, and monitoring facilities
Features of solar power
태양광의 특징, 장점과 단점 표 Advantages Disadvantages - Clean, infinite energy source
- Power generation available anywhere needed
- Easy maintenance and possibility of unmanned system
- Long life span (20 years)
- Quick response to changes in demand with a short construction period
- The amount of electricity produced varies depending on the amount of solar radiation in each area
- Requires wider installation area due to low energy density
- Decrease in efficiency due to weather factors
- Difficulty in applying to urban areas
