Blue energy

Performance Comparison with Conventional Technology

Performance Comparison
with Conventional Technology

A. Hardware Configuration

Category Conventional products Blue Energy Remark
Boiler Fan heater
System structure Central heating and local dispersion combination type Radiating pipe Non-powered air-conditioning Simultaneous heating of the entire space
Removal means PE & iron pipe Duct, plastic duct Not required
Heat storage medium Water (oil) Sheath heater, water Not required
Dispersion Circulating pump Ventilator Not required
Removal means PE & iron pipe Duct, plastic duct Not required
Agitating equipment Agitator Agitator Not required

B. Heating Mechanism

Category Conventional products Blue Energy Remark
Air flow method Forced ventilation ‘Air density difference’ depending on the temperature difference Blue Energy whirl convection
Temperature maintenance Indirect (water,wind) heating Direct heating
Humidity maintenance Dehumidifying equipment Non-dehumidification and life principle Temperature control within the dew point
Realization of smart farm Limits in precise control Realization of 1 ℃ unit control Quick and simultaneous temperature response rate in the entire space

C. Convenience of the Management and Operation

Category Conventional products Blue Energy Remarks
Cold-weather damage risk Concerns about when the central heating equipment fails Module type Blocking cold-weather damage from origin
Machine equipment Mechanical device, air-conditioning equipment Control box,heating pipe Installation space not required
Key management elements Machine failure, corrosion and scale, fire, etc. Almost none Simple structure
Durability About 5 years Longer than 10 years Simple structure

Performance of Whirl Heating

1. Management of Temperature and Humidity

Category Conventional products Blue Energy Remarks
Temperature Temperature change deviation ±5~10℃ Maximum ±1.3℃
Temperature spatial distribution deviation ±10~15℃ Maximum 3℃
Humidity Humidity change deviation Dew condensation, 95% or higher Maximum 80.3% ±6.7%
Humidity spatial distribution deviation Dew condensation, 95% or higher Maximum 79.9% 13.5%

Support of Local Adaptive High-Reliability Slim Farming Machine Manufacturing Base Fostering Project/ (Foundation) Daegu Mechatronics & Materials Institute

Test methods: JTM K 09: 2009(testing the constant temperature and humidity chamber)-KOLAS Certification

Test space: 80m×64m×5.5m, vinyl greenhouse for paprika in Changnyeong-gun, Gyeongsangnam-do

Test date: Measuring for 15 hours in minutes from 5:08 pm of February 13 to 8:57 am of February 14, 2017

Test institution: Korea Testing Laboratory (KTL)

2. Energy Efficiency

Heating stage Energy loss description of conventional products Blue Energy
Energy input Medium materials heated Heat generation
Medium Physical loss following heat exchange None
Heat storage Waste of residual heat energy stored after heating every day None
Removal Waste of energy due to operation of remote heat removal equipment None
Dispersion Waste of residual heat energy stored in the dispersion equipment after heating every day None
Radiation Waste of unnecessary energy due to radiation of residual heat between the system ON and OFF None
Heat exchange Physical loss in the process of heat exchange None
Diffusion Waste of energy due to operation of forced heat diffusion equipment None
Ceiling heat storage Energy waste due to temperature difference with the top of the ground and unnecessary energy use None
Agitation Energy waste due to operation of the upper and lower air flow equipment None
Temperature maintenance Repetition of the above process – occurrence of time difference of the temperature reaction rate Immediate reaction Completion of heating
Dehumidification Dew condensation generated at 95-100% humidity, requiring operation of dehumidifier None Completion of heating

3. Energy efficiency comparison with geothermal heat pump

Contents Geothermal heat pump Blue Energy
Full heating wattage 100 92.3%
Amount of power used 100 85.0%
Electric charge 100 86.2%
Installation cost 100 11.1%

※Based on KEPCO bill for a same-crop husbandry farmhouse in Changnyeong county, South Gyeongsang province during the period from December 2017 to March 2018


Geothermal heat pump is recognized throughout the world as a heating system which is more than twice as efficient as conventional boilers and fan heaters. Therefore, it is no exaggeration to say that the energy efficiency of the Blue Energy system is twice that of a fan or boiler and is even higher than a geothermal heat pump.

4. Comprehensive Comparison with Conventional Heating

Performance factors Blue Energy whirl convention Boiler Fan heater Remarks
Crop growth environment Growth rate control Easy Impossible Impossible Possible to control temperature finely
Temperature Reaction rate Immediately Heat exchange ~ heat storage ~ dispersion ~ radiation -heat exchange~circulation Heat up – heat exchange – dispersion ~ circulation Direct heating/ horizontal whirl convection
Change Maximum ±1.3 About 10~15℃ (ON/OFF basic ±1)
Spatial deviation Maximum 3℃ Maximum 3℃
Humidity Change Maximum 80.3% ±6.7% 95% or higher, dew condensation 95% or higher, dew condensation Crop optimized by itself
Spatial Maximum 79.9% 13.5% Very high (dew condensation and over drying) Very high (dew condensation and over drying)
Wind None Forcible circulating wind Ventilator, agitator Natural convection
Noise None Boiler and circulating pump Fan heater, air-conditioning facilities No mechanical device
Energy efficiency Energy source Electricity fossil fuel or electricity Fossil fuel or electricity
Use of energy Very low High (kcal) High (kcal)
Heating method Direct heating Fuel→water→air Heater ~ air→air Saving heat exchange energy
Heat storage medium None Water (oil) Water, burner, sheath heater Saving heat storage energy
Removal device None Circulation pump Ventilator Saving device energy
Dispersion means None PE and iron pipe Duct, plastic duct Saving dispersion energy
Radiating performance Very high ((20 times) Low Comparatively high 0.25t vacuum corrugated tube
Diffusing method Horizontal whirl convection Elevated convection Elevated convection Saving ceiling storage heat
Agitation device None Required Required Saving agitating energy
Maintenance Mechanical device Control box, heating pipe Boiler and pipe, air-conditioning facilities Fan heater, duct air-conditioning facilities Not requiring separate space
Major defect factors Almost none Mechanical corrosion and scale Mechanical failure fire Simple structure
Construction convenience Very high Pipe welding, boiler chamber, etc Normal Corrugated tube, extending snow removal
Management convenience Very high Low – pipe scale cleaning, etc.. Normal Module method
Durability Semi-permanent About 5 years About 5 years Stainless steel materials