In recent years, radiation plate technology has emerged as a transformative approach in modern building climate control. From the evolution of traditional air conditioning systems to innovative radiation heat exchange solutions, this technology offers unique advantages in energy efficiency, comfort, and environmental sustainability. Its wide-ranging applications—from residential and commercial buildings to specialized industrial environments—demonstrate not only the value of radiation plate systems but also the best practices for maximizing performance and user satisfaction.
The definition and characteristics of radiation plate air conditioning system
Core definition
Radiant plate air conditioning systemIt's a kind ofHeat radiation is the main component (about 60%), and heat convection is the auxiliary component (about 40%)The heating and cooling system. It uses cold water (16-18 °C in summer) or low-temperature hot water (28-32°C in winter) with a temperature not lower than the dew point temperature as a medium to exchange heat with the indoor environment, achieving cooling or heating.
Principles of bionics:Simulating the form of energy delivery by human capillaries, as well as the dynamic thermal balance between objects in nature, to achieve comfortable indoor environment control.
System core composition
· End of radiation plate
bearing sensible heat load
· FreshFresh air system
bearing latent heat load
· Water system
Cold and heat source and distribution
· Intelligent control
Anti-condensation and temperature control
The essential difference from traditional air conditioners
Heat transfer mode
Traditional air conditioners:Forced convection (100%)
Radiator plate:radiation (60%) + convection (40%)
Air supply form
Traditional air conditioners:High wind speed forced air supply
Radiator plate:Windless natural heat exchange
Water supply temperature
Traditional air conditioners:7-12 °C (low temperature water)
Radiator plate:16-18 °C (high temperature cold water)
Dehumidification capacity
Traditional air conditioners:It has the function of dehumidification itself
Radiator plate:Need to cooperate with independent fresh air dehumidification
Technology evolution timeline
1970s：Origins of technology in Europe
Radiation cooling technology originated in Europe in the 1970s. German scientists were inspired by human capillaries and invented capillary radiation air conditioning systems. 1985 The first successful application of the German Lüzov Bank.
1990s：Mature technology and popularization in Europe
90 In the s, radiation heating technology gradually matured and was widely used in Europe. Radiation cooling technology began to expand to North America, Japan, and other places, and the product form developed from capillary to metal-assembled radiation plate.
2000s：Introduction to China · Start Development
21 Radiant air conditioning technology was introduced to China in the early 20th century and was initially used in high-end residential and office buildings. 2008 Some of the venues of the Beijing Olympic Games adopted radiation heating technology.
2020s：Intelligent and dual-carbon drive
The current radiation plate technology is developing towards intelligence and integration, and the Wuheng system. (Constant temperature, constant humidity, constant oxygen, constant cleanliness, constant tranquility) deep integration. Under the promotion of the "dual carbon" strategy, it has ushered in a period of rapid development with the advantages of high efficiency and energy saving.
The core advantages of the radiation plate air conditioning system
The ultimate comfort
· No wind sensation：60% through radiation heat exchange, no forced air supply, avoiding "air conditioning sickness".
· No noise：No moving parts, indoor noise less than 30dB, creating a quiet environment.
· Uniform temperature：The vertical temperature difference is less than 2 °C, with no uneven temperature distribution.
High efficiency and energy saving
· Energy saving 28-40%：High-temperature cold water + low-temperature hot water, the COP of the refrigeration unit is increased by 25%.
· Natural cold source：16-18 °C cold water can be used as natural cooling sources such as groundwater and cooling towers.
· Low energy consumption for transmission and distribution：The energy consumption of the water system is only 1/10-1/5 of that of the air system.
Health and hygiene
· No condensate water：No condensate pan, eliminating bacterial growth and dripping problems.
· No dust：No forced air supply, no stirring of dust, reducing the spread of allergens.
· High quality of fresh air：Independent fresh air system, 100% fresh air, controllable quality.
Space saving
· Concealed installation：It is embedded in the ceiling/wall and does not occupy indoor usable area.
· No air duct：The large air duct is eliminated, saving the ceiling space by 300-500mm.
· High aesthetics：Perfectly integrated with the decoration style, improving the interior quality.
System Stability
· No moving parts：There are no moving parts such as fans indoors, with low failure rate and simple maintenance.
· Long service life：The design life is 50 years, far exceeding traditional air conditioners (10-15 years).
· Strong heat storage capacity：The temperature changes slowly after shutdown, maintaining a comfortable environment.
Typical application scenarios
High-end residence
Application characteristics: Villa, large flat, pursue ultimate comfort and health, and pay attention to interior decoration quality.
System configuration: Capillary/metal radiation plate + full heat exchange fresh air + ground source heat pump + intelligent control
Office building
Application characteristics: Office buildings and conference centers require a quiet and undisturbed environment to improve employee work efficiency.
System configuration: Metal radiation plate + replacement ventilation + chiller unit + zone control
Public buildings
Application characteristics: Large spaces such as airports, stations, and stadiums achieve uniform temperature distribution and reduce operating costs.
System configuration: Metal radiation plate + vent air supply + natural cold source utilization + centralized monitoring
Special places
Application characteristics: Hospitals, laboratories, and museums have high requirements for air quality and temperature and humidity accuracy.
System configuration: Capillary radiation + clean fresh air + precision control + backup system
Typical project cases
Beijing Daxing International Airport Cargo Area
The metal radiation plate system is used to achieve uniform cooling in a large space, saving 35% energy annually.
· Cooling capacity: 85 W/m²
· Energy saving: 35%
· Public buildings
Shuozhou Moisturized Airport
Radiant cooling combined with fresh air systems solves the problem of air conditioning in large spaces.
· Pavement rate: 65%
· Comfort: PMV ≈ 0
· Public buildings
Berlin, Germany, Palace Office Building
The European classic radiation air conditioning project has been running for 20 years, and the system is stable and reliable.
· Running: 20 years
· Satisfaction: 95%
· Office building
South Korea Samsung Germany headquarters
The capillary radiation system is used to achieve a constant temperature and humidity office environment.
· Temperature control accuracy: ± 0.5 °C
· Humidity accuracy: ± 5%
· Office building
Beijing Entrepreneurship Building
Early radiation air conditioning projects in China have cultivated a large number of technical talents for the industry.
· Application: 2005
· Energy saving: 30%
· Office building
Key points and considerations for the design of radiation plate system
1. Load calculation
Calculate separately sensible heat load and latent heat load. The radiation plate bears the sensible heat, and the fresh air bears the latent heat.
2. Anti-condensation design
Must be configured The dew point monitoring and control system ensures that the surface temperature is 0.5℃ higher than the dew point.
3. Fresh air coordination
Ensure that the fresh air volume is sufficient for dehumidification, and the moisture content of the supplied air should be Below the indoor dew point. Oh, yeah.
4. Envelope structure requirements
The air tightness and insulation performance of the building should meet the standards to reduce the cooling and heating load.
5. Light position and furniture reservation
Avoid blocking the radiation plate, and do not place furniture near the capillary tube on the wall.
Precautions and restrictions
❌ Unsuitable places
· Places with high wet load (swimming pool, gym)
· Places that require rapid cooling (theatrical stage)
Places with frequent window ventilation (street-facing shops)
🦉 professional requirements
Requires a professional design team for system design
High construction quality requirements, requiring professional teams
Long commissioning period, 2-4 weeks to reach the best state
💰 Economic analysis
Initial investment: 30-50% higher than conventional air conditioners
Operating costs: 28-40% less than conventional air conditioners
Payback period: 3-5 years (depending on the strength of use)
Life cycle costs: significantly lower than traditional air conditioners
