8/17/2019 Perhitungan Air Limpasan

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Keterangan :

Qair hujan = 0,278 x

 

8/17/2019 Perhitungan Air Limpasan

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A = (Banyak Grid x Luas Grid ! (Banyak Grid x Luas Grid ! """"""! n

= ( 20 x #0"000 ! ( $$ x #0"000 ! ( %& ! #0"000 ! ( %# x

#0"000 ! ( %& x #0"000 !

( '$ x #00 ! (& x #00 ! ( ' x #00

= (2"000 ! ( $"$00 ! ( %"&00 ! (%"#00 ! (%"&00 ! ('"$00 !

(&00 ! ('00

= 2$"'00 2

= 2$,' k2

Qair hujan = 0,278 x I x A

= 0,278 x #&',''%&$)&% x 2$,'

= #))0"$)$0$

Q*i+asan = 0,278 x I x x A

= 0,278 x #&',''%&$)&% x 0,80 x 2$,'

= ##'2,'#$8)8

Qt-ta* = Qair hujan ! Q*i+asan

= #))0"$)$0$ ! ##'2,'#$8)8

= 2'&%,#$2&08