Ensol solar collector type ES2V/5,23 is designed for heating service water and swimming-pools through a heat exchanger, supporting central heating as well as generating process heat. Large surface solar collector ES2V/5,23 is ideal for use in large solar installations. The main part of a large surface collector is a copper sheet covered with a high selective eta plus coat with an active surface of 4,71 m2. The sheet ensures a high level of solar radiation absorption, which results in obtaining high efficiency of the energy conversion process. The absorber’s plate is connected by means of ultrasonic welding with the meandric copper tubes system, in which the medium circulates. Meander absorber ensures a steady heat removal through the circulating medium. Heat losses were minimized by application of lower and lateral insulation made of mineral wool of low heat conduction. It is possible to connect up to 10 solar collectors ES2V/5.23 in parallel in one field. Large surface flat collectors with prismatic glass have certificate of compatibility with DIN EN 12975-2:2006 norm conducted by TÜV Rheinland Immissionsschutz und Energiesysteme GmbH and Solar Keymark certificate.
- Width (A) 2356 mm
- Height (b) 2220 mm
- Depth (C) 85 mm
- Weight (m) 94 kg
- Surface (S) 5,23 m2
- Optical efficiency (ηo) 82,1 %
- Coefficient (a1) 3,276 W/(m2K)
- Coefficient (a2) 0,025 W/(m2K2)
- Incidence angle modifier (IAM) 0,89
- Connection: Cu pipe (⌀) 28 mm
- Casing alu-profile
- Kind of an absorber Copper sheet, 0,2mm
- Selective layer high selective layer
- Technology Ultrasonic welding
- Absorption coefficient (α) 95 %
- Emission coefficient (ε) 5 %
- Width (a) 2300 mm
- Height (b) 1068 mm
- Absorber surface (Sb) 4,913 m2
- Active surface (Sn) 4,712 m2
- Amount of fluid (V) 4,18 dm3
- Balance temperature (Tr) 208 ⁰C
- Guaranteed minimal heat yield 525 kWh/m2*year
- Flow recommended 125-240 l/h
- Insulation mineral wool
- Conduction coefficient (λ) 0,035 W/mK
- Thickness of the insulation layer bottom (d) 40 mm
- Thickness of the insulation layer side (d) 8 mm