Ensol solar collector type ES2V/4,0 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/4,0 is ideal for use in large solar installations. The main part of the large surface collectors is an aluminium sheet covered with a high selective eta plus coat with an active surface of 3,73 m2. The sheet ensures 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 aluminium 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 5 solar collectors ES2V/4.0 in parallel in one field. Large area flat collectors with prismatic glass have certificate of compatibility with norm DIN EN 12975-2:2006 conducted by TÜV Rheinland Immissionsschutz und Energiesysteme GmbH and Solar Keymark certificate.
- Width (A) 1977 mm
- Height (b) 2006 mm
- Depth (C) 85 mm
- Weight (m) 69 kg
- Surface (S) 4,006
- Optical efficiency (ηo) 80,1 %
- Coefficient (a1) 3,28 W/(m2K)
- Coefficient (a2) 0,017 W/(m2K)
- Incidence angle modifier (IAM) 0,94
- Connection: Cu pipe (⌀) 22 mm
- Casing alu-profile
- Kind of an absorber Aluminium sheet 0,3 mm
- Selective layer high selective layer
- Technology Ultrasonic welding
- Absorption coefficient (α) 95 %
- Emission coefficient (ε) 5 %
- Width (a) 1953 mm
- Height (b) 956 mm
- Absorber surface (Sb) 3,734 m2
- Active surface (Sn) 3,734 m2
- Amount of fluid (V) 3,6 dm3
- Balance temperature (Tr) 208 oC
- Guaranteed minimal heat yield 525 kWh/m2*year
- Flow recommended 80-120 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