Versickerung und Retention/en - Versionsgeschichte

Sabrina am 29. März 2019 um 09:27 Uhr

2019-03-29T09:27:31Z

2018-11-21T12:55:41Z

Die Seite wurde neu angelegt: „The crucial rain yield rD(n), the duration D and frequency n [L/sha] must be determined iteratively.“

2018-11-20T15:29:12Z

2018-11-20T15:18:44Z

2018-11-20T15:17:46Z

2018-11-20T15:16:49Z

2018-11-20T15:16:30Z

2018-11-20T15:15:55Z

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2018-11-20T15:15:00Z

@@ Zeile 7: / Zeile 7: @@
 '''For end users:'''
-*sealed surface fees are saved
+*stormwater fees are saved
 *the local microclimate is improved
 '''For municipalities:'''

@@ Zeile 356: / Zeile 356: @@
 ===Discharge from the retention system===
 ===Continuity condition===
@@ Zeile 383: / Zeile 377: @@
 The significant rain yield rD(n) of duration D and frequency n [L/s-ha] must be iteratively determined.
-: V<sub>er</sub> = (&sum;Q<sub>zu</sub> - &sum;Q<sub>s</sub>) x D x 60
+V<sub>er</sub> = (∑Q<sub>zu</sub> - ∑Q<sub>s</sub>) x D x 60
-Die maßgebliche Regenspende r D(n) der Dauerstufe D und Häufigkeit n [l/sha] muss iterativ bestimmt werden.
+The crucial rain yield rD(n), the duration D and frequency n [L/sha] must be determined iteratively.
 ==Overflow frequency==

@@ Zeile 265: / Zeile 265: @@
 | A<sub>red</sub> || = connected paved surfaces in m² (5,000 m² in example)
 |-
-| r<sub>D(n)</sub> || = crucial rainfall in L/s-ha (e.g. KOSTRA-Data Aachen, see Dimensioning of infiltration or retention systems)
+| r<sub>D(n)</sub> || = crucial rainfall in L/sha (e.g. KOSTRA-Data Aachen, see Dimensioning of infiltration or retention systems)
 |-
 | Q<sub>dr</sub>  || = discharge throttle value in L/s (the arithmetic mean of the throttle curve with non-continuous throttles, see diagram of throttle curves, 21 L/s in the example)

@@ Zeile 659: / Zeile 659: @@
 {| class="wikitable"
 |-
-! colspan="2"|A<sub>s</sub> = A<sub>red</sub> / ( k<sub>r</sub> x s<sub>f</sub> x 107 / 2 x r <sub>D(n)</sub> –1)
+! colspan="2"|A<sub>s</sub> = A<sub>red</sub> / (k<sub>r</sub> x s<sub>f</sub> x 107 / 2 x r <sub>D(n)</sub> –1)
 |-
 | A<sub>red</sub> || = connected paved surfaces
@@ Zeile 679: / Zeile 679: @@
 | k<sub>r</sub> || = 2 x 10<sup>-4</sup> m/s
 |-
-| r <sub>D(n)</sub> || = from KOSTRA table with n=0.2/a and D=10 min: r<sub>10(0.2)</sub> = 204.60 L/s-ha
+| r <sub>D(n)</sub> || = from KOSTRA table with n=0.2/a and D=10 min: r<sub>10(0.2)</sub> = 204.60 L/sha
 |-
+|

@@ Zeile 597: / Zeile 597: @@
 |}
-''c. TTable for rough estimation of small systems with r<sub>15,n=0.2</sub>''
+''c. Table for rough estimation of small systems with r<sub>15,n=0.2</sub>''
 {| class="wikitable"
 |-
-! k<sub>f</sub> (m/s) !! !! colspan="3"| e.g. location Aachen (D) r<sub>15,0.2</sub>=152.6 L/(s*ha)!! colspan="3"|e.g. location Berlin (D) r<sub>15,0.2</sub>=213.1 L/(s*ha)
+! k<sub>f</sub> (m/s) !! !! colspan="3"| e.g. location Aachen (D) r<sub>15,0.2</sub>=152.6 L/sha!! colspan="3"|e.g. location Berlin (D) r<sub>15,0.2</sub>=213.1 L/sha
 |-
 | ||  || A=100 m<sup>2</sup> || A=150 m<sup>2</sup> || A=200 m<sup>2</sup> || A=100 m<sup>2</sup> || A=150 m<sup>2</sub> || A=200 m<sup>2</sup>

@@ Zeile 558: / Zeile 558: @@
 {| class="wikitable" "text-align:rechts"
 |-
-! Duration D [min] !! Rain yeld r [l/sha] !! L<sub>erf,rigole</sub> [m] !! V<sub>erf,rigole</sub> [m³]
+! Duration D [min] !! Rain yeld r [L/sha] !! L<sub>erf,rigole</sub> [m] !! V<sub>erf,rigole</sub> [m³]
 |-
 | 5 || 243.00 || 0.75 || 0.77

@@ Zeile 537: / Zeile 537: @@
 :Location: Aachen
 :A<sub>red</sub>= 100 m²
-:Measured rainfall: r15,n=0.2 = 152.6 L/(s*ha)
+:Measured rainfall: r15,n=0.2 = 152.6 L/(sha)
 :k<sub>f</sub> = 1*10-4 m/s (medium sand)
 :s<sub>rr</sub> = 0.56 (DRAINMAX Tunnel installation according to German Institute for Civil Engineering)

@@ Zeile 497: / Zeile 497: @@
 ====Calculation according to Equation 20====
-V<sub>rück</sub> = ( r<sub>(D,30)</sub> x A<sub>ges</sub> – ( r<sub>(D,2)</sub> x C<sub>Dach</sub> + r<sub>(D,2)</sub> x A<sub>FaG</sub> x C<sub>FaG</sub>)) x D x 60 / (10000 x 1000)
+V<sub>rück</sub> = (r<sub>(D,30)</sub> x A<sub>ges</sub> – (r<sub>(D,2)</sub> x C<sub>Dach</sub> + r<sub>(D,2)</sub> x A<sub>FaG</sub> x C<sub>FaG</sub>)) x D x 60 / (10000 x 1000)
 with: D = 10 Min (from DWA-A-118:2006, Table 4)

@@ Zeile 466: / Zeile 466: @@
 ===Equation 21===
-'''V<sub>rück</sub> = (( r<sub>(D,30)</sub>) x A<sub>ges</sub>/ 1000)– Q<sub>voll</sub> x D x 60/1000'''
+'''V<sub>rück</sub> = ((r<sub>(D,30)</sub>) x A<sub>ges</sub>/ 1000)– Q<sub>voll</sub> x D x 60/1000'''
 V<sub>Rück</sub> the to-be retained rainwater amount, m³

@@ Zeile 446: / Zeile 446: @@
 ===Equation 20===
-'''V<sub>rück</sub> = ( r(D,30) x A<sub>ges</sub> – ( r(D,2) x C<sub>Dach</sub> + r(D,2) x A<sub>FaG</sub> x C<sub>FaG</sub>)) x D x 60 / (10,000 x 1000)'''
+'''V<sub>rück</sub> = (r(D,30) x A<sub>ges</sub> – ( r(D,2) x C<sub>Dach</sub> + r(D,2) x A<sub>FaG</sub> x C<sub>FaG</sub>)) x D x 60 / (10,000 x 1000)'''
 V<sub>Rück</sub> the to-be retained rainwater amount, m³