Tubes Qty

15

18

20

Distance between two tubes

75

75

75

Diameter/Length of Vacuum tube(?)

f58/1800

f58/1800

f58/1800

Material of vacuum tube

high borosilicate glass3.3

high borosilicate glass3.3

high borosilicate glass3.3

Thickness of inner/outer Vacuum tube(?)

1.6/1.8

1.6/1.8

1.6/1.8

Diameter/Length of heat pipe condensor(?)

f14/1750

f14/1750

f14/1750

U pipe material/thickness(?)

Cu tp2/0.5

Cu tp2/0.5

Cu tp2/0.5

Diameter/Thickness of inner tube(?)

f22/1.0

f22/1.0

f22/1.0

Connection size

f22( 3/4?)

f22(3/4?)

f22(3/4?)

Keeping warm material/thickness(?)

Rock wool/40

Rock wool/40

Rock wool/40

Solar Collector Pressure(MPa)

0.6

0.6

0.6

Solar Collector ?working temperature

<100

<100

<100

Solar Collector Capacity(L)

0.98

1.15

1.27

Solar Collector Aperture area(?)

1.5

1.8

2.0

Solar Collector Total Area(?)

2.30

2.74

3.04

Recommend flow(L/min)

1.13

1.35

1.50

Pressure drop(Pa)

59.2

90.6

116.7

Intercept effiency ?₀

0.78

0.78

0.78

Heat loss coefficient a

2.09

2.09

2.09

Solar Collector Power(W)1000W/?

870

1047

1165

Solar Collector Net weight(kg)

50.75

59.75

64.75

a   (?)

1270

1495

1645

b   (?)

1175

1400

1550

c   (?)

1100

1325

1475

c/2 (?)

——

——

——

d   (?)

1980

1980

1980

e   (?)

1240

1240

1240

f   (?)

1470

1470

1470

Packaging Size(?)