7/28/2019 - Solar geometry

1/15

.

2001

s s s s s x .

x x s s s x s s s.

s , s . . : . 010 65 19403, 097 78284 14 delaxo@centra l .ntua.gr

7/28/2019 - Solar geometry

2/15

7/28/2019 - Solar geometry

3/15

. 10/12/200 1

3

4 & s

s s s s sx s s:

s 21/12 x ( )

s 21/6 x ( ).

s 21/3 & 23/9 90 ( &).

s s s s s s s, x z & .

5

:

s s 23.5

s s23.5.

z s s :

ss s 66.5

ss 66.5 .

s s s

x 24 0 s s s .

6 s

s s s s s.

, s 21/12 , x . , xs s - z , s s.

s s, x x .

7/28/2019 - Solar geometry

4/15

. 10/12/200 1

4

7 s s

x s -.

s s 24 , ss s s .

x

s

s

. s s s xz .

8 s s

s s s : s s z z s s.

x z z , ss s z s s s.

9 x

x xz sx s s s .

, x x .

s x s s .

1 0 s

s .

ss. z . z

s, s .

7/28/2019 - Solar geometry

5/15

. 10/12/200 1

5

1 1 s s

s s zs ( &z), z .

ss s zs s s. zx 0, z 90.

z s zss s s s s s . z, , .

1 2 x s s s

s s s xs s s x z / , .x. x.

s s ss s xs.

xz z s s xz

s ( ACB).

x ( PBC).

7/28/2019 - Solar geometry

6/15

. 10/12/200 1

6

1 3

s x s s s, s .

xs x s s , s:

.

1. s s, =1. . .365

2. s, =360./365 .25

3. , D= arc si n{0 .3978 .si n[ A- 80.2 +1.92.s in(A -2 .8)] }

4. h, =15(h-12)

5. , =arcsin(sinL.sinD+cos.co sL .c osD )

6. z , =arcos[(sinL.sin -sinD)/cosL.cos ]

cosD.sin/c os

7/28/2019 - Solar geometry

7/15

. 10/12/200 1

7

1 6

xs z x s s s s.

s. x z s s s

.

, x s , x zs , s s x.

x s x ,.x. .

1 7 s

s s s, s:

zss, z & , s & zs s x.

z , z &.

7/28/2019 - Solar geometry

8/15

. 10/12/200 1

8

1 8 x s

x s s x s 3- 2-.

s :

s s x.

z z & z .

z s x s s s s.

z x s ss s.

ss.

s s s.

ss s x s s & ss .

s x s. xs s s s s s .

s (s )x s, x .

1 9 s s

s z s:

,

,

&

.

2 0

, z z.

xx zs .

7/28/2019 - Solar geometry

9/15

. 10/12/200 1

9

2 1

s s , s s z .

xs s z z,s s, s s z s

s.

z 40 sx x x.

2 2

ss s s s , s s s.

s xs s .

7/28/2019 - Solar geometry

10/15

7/28/2019 - Solar geometry

11/15

. 10/12/200 1

11

2 5

s s.

s s s .

s s x s

, xs s & .

s s s . s . xzx.

2 6 s

s s ss x x: s z z s s s, s s s s(z & ).

, z s s x s - z

s s s.s x s .

s s, s s .

2 7

s s s s s

, s z &.

s (s &s) z s s z & .

x s s .

7/28/2019 - Solar geometry

12/15

. 10/12/200 1

12

2 8

s s 2 s 5.

x s, x , s x.

2 9

s x , s s & z .

3 0 x

, s s s .

& z:

s s:

rs = r.

cosD / (sinL + sinD)

ds = r.

cosL / (sinL + sinD)

s s:

dt = r . tanL

rh = r / [cosL . sin(15h)]

dh = r / [cosL . tan ( 15h)]

L sD s s ( s

)

h

7/28/2019 - Solar geometry

13/15

. 10/12/200 1

13

3 1 s

ss s x z s s s .

x s s x s s xs, s, & s.

s s s

x .

3 2

x .

s ss x, - s.

7/28/2019 - Solar geometry

14/15

. 10/12/200 1

14

3 3 s

x s s s x , , x, s.

CAD x s

x , s x 3- .

xss , z.

3 4 s z s

s s 24 xszs 360/24 = 15 s x zs Greenwich. z s x.

s s z s , s s s.

x zs ss s 180, ( s ) ( s ) .

7/28/2019 - Solar geometry

15/15

. 10/12/200 1

15

3 5 x

s x 24 , s x s s, ( ) 24 s s.

s s ss s s -18

+15 , s. z x, z .

ss s s s x.

3 6 &

xs z s s s s xs s z s, sx s (.x .-s).

s s ss s s z s.