Solar Water Heating System

1

Brand

Jaysolar

2

Overall size

2030 mm x 1030 mm x 95 mm.

3

No. of fins per collector

9

4

Absorber area

2.06 sq. M

5

Absorber coating

NALSUN Solar selective coating on copper (black chrome on copper with or without nickel undercoat)

6

Absorptivity

0.92 – 0.96

7

Emissivity

0.10 - 0.15

8

Temperature tolerance of coating

More than 200 deg. C

9

Absorber sheet (Copper)

0.12 mm thick x 1900mm L x 115mm W

10

Riser (Copper tube)

O. D. 12.7mm x 0.5 mm thick x 1922mm L

11

Bonding between riser tube and absorber

Ultrasonic welding

12

Bonding between riser tube and header

Copper brazing

13

Riser tube protrusion inside header

Max. 3 mm

14

Hydraulic Test pressure

5 Kg/ sq. cm.

15

Rated pressure

2.5 Kg/ sq. cm.

16

End connections

Brass flared Flanges

17

Collector box

Specially Extruded Aluminum sections

18

Box Corner joints

G. I. screws

19

Box-back sheet joint

Pop riveted

20

Back sheet

Aluminum sheet 0.45 mm thick

21

Reflector

Aluminum foil 0.02/ 0.05 mm thick

22

Glazing

Toughened & Tempered glass 4 mm thick - free from bubbles and scratches