APACK succeeded in developing the products employing technologies to secure all the source technologies required for production, provides engineering for any adaptive areas, and guarantees a thorough after-sales services. APACK applies the technologies of vacuum and heat pipes to the products to reduce heat loss (e.g. conduction and convection) from the solar heat absorption plates by 95%, reduce about 30% the installation area. These high efficiency products are available for industrial process heating, as well as hot water Supply, and air conditioning (heating, cooling) in large buildings.

Core Technology

Glass/copper tube joining technology

• Core technology for maintaining high vacuum level
• First to be developed internally (third in the world)

Manifold heat-exchange technology

• Employing pre-cast fins for enlarging the heat conductivity area
• Dry connection heat-exchange mode for simple installation and maintenance, repair

Heat pipe technology

• Employing heat pipes with excellent heat response and heat transportation
• Evaporation allowed without external power, repeat condensation processes

Heat collector plate welding technology

• Coating particulaly titanium with excellent absorption rate and lower emissions
• Ultrasonic welding of heat pipes and heat collector plates

Schematic diagram Evacuated Tubular Solar System

Specification & Technology

Item			Specifications
Model			SP-10	SPD-16
Type			Evacuated Tubular Solar Collector
Mode			Heat pipe mode	CPC Type
Solar collector tubes			10 tubes	16 tubes
Collector area(m2)			2.55	3.02
Dimensions(L x W x H mm)			2185 x 1165 x 162	1990 x 1516 x 134
Water Capacity(L)			4.8	2.5
Weight(kg)			58	63
Weight filled with water to top level(kg)			62.8	65.5
Water inlet of tube			25mm	15mm
Hot water outlet diameter			25mm	15mm
Water pressure inspection pressure(kg/cm2)			7kg/cm2
Material	Absorber plate		Titanium-coated copper plate
	Glass tube		Borosilicate glass -outer diameter 102mm, hickness 2.5mm	Borosilicate glass -Outer diameter 58mm, thickness 1.8mm -Inlet diameter 47mm, thickness 1.6mm
	Insulation	Collector	Vacuum insulation
		Manifold	Urethane foam
	Housing		Aluminum
	Water inlet/hot water outlet		Brass

High Performance

• Vacuum technology reduce thermal loss (e.g. conduction and convection) from the solar collector plates for a high-efficient performance, particularly heat collection efficiency in winter seasons
• Heat pipes are applied for their fast thermal response and excellent heat transfer
• Both directly reached and scattered solar radiations are effectively applied ideal for the climatic conditions of large scattered radiation
• Suitable for industrial process, large-scale hot water supply, and air-conditioning (heating, cooling) in large buildings(80~150°C)
• Easy maintenance (without moving part)
• No restriction on the installation angle

Compant Size

• Enhancing efficient use of space (engineering and installation)
• Utilization of exterior factors of buildings

New & Renewable Energy Certification

• Performance Certification : Korea Energy Management Corporation
• Company Certification : Ministry of Commerce, Industry and Energy

New Technology

• Patented technologies applied such as joining glass with copper tubing
• Dry connection heat-exchange mode of heat pipes and manifolds (Efficient maintenance)

Easy Maintenance

• Core technologies preserved for vacuum tube type solar collectors (prompt troubleshooting for any defects during operation)
• Domestic manufacture of vacuum tube type solar collectors (easy maintenance and prompt supply of materials for after-sales services)
• Remote system control and monitoring via the Internet (periodic preventive maintenance available)

Application

• Low temperature industrial processes (lower than 100°C)
  - Hot water for foodstuff container (bottles and cans) cleaning, dying process and concrete block curing
• Medium temperature industrial processes (100-150°C)
  - Drying process in foodstuff process, textile manufacture, paper and pulp mills
• Large-scale hot water supply and air-conditioning (heating, cooling) in large buildings
  - Public building and welfare facilities, apartment building and commercial buildings
• Replacement of energy sources in rural areas
  - Greenhouses, fish-farm and sewage treatment plants