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Nächste Überarbeitung 		Vorhergehende Überarbeitung
sandbox [2022/06/29 08:53]
tfischer 		sandbox [2023/03/29 11:38] (aktuell)
mexleadmin
Zeile 1: Zeile 1:
 +#@TaskTitle_HTML@#~~#.#7.#~~  Power loss and efficiency II     #@TaskText_HTML@# 
 +
 +A water pump ($\eta_\rm P = 60~\%$) has an electric motor drive ($\eta_\rm M=90~\%$).
 +The pump has to pump $500~{\rm l}$ water per minute up to $12~{\rm m}$ difference in height.
 +  * What must be the rated power of the motor?
 +  * What current does the motor draw from the $230~{\rm V}$ mains? (assumption: the $230~{\rm V}$ is a DC value and also the current is DC)
 +#@TaskEnd_HTML@# 
 +
 +#@TaskTitle_HTML@#~~#.#.#~~  Power loss and efficiency II     #@TaskText_HTML@# 
 +
 +A water pump ($\eta_\rm P = 60~\%$) has an electric motor drive ($\eta_\rm M=90~\%$).
 +The pump has to pump $500~{\rm l}$ water per minute up to $12~{\rm m}$ difference in height.
 +  * What must be the rated power of the motor?
 +  * What current does the motor draw from the $230~{\rm V}$ mains? (assumption: the $230~{\rm V}$ is a DC value and also the current is DC)
 +#@TaskEnd_HTML@# 
 +<panel type="info" title="Exercise 1.7.4 Power loss and efficiency II"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 92%>
 +
 +A water pump ($\eta_\rm P = 60~\%$) has an electric motor drive ($\eta_\rm M=90~\%$).
 +The pump has to pump $500~{\rm l}$ water per minute up to $12~{\rm m}$ difference in height.
 +  * What must be the rated power of the motor?
 +  * What current does the motor draw from the $230~{\rm V}$ mains? (assumption: the $230~{\rm V}$ is a DC value and also the current is DC)
 +</WRAP></WRAP></panel>
 +
 ~~NOCACHE~~ ~~NOCACHE~~
 ~~REVEAL theme=dokuwiki&transition=convex&controls=1&show_progress_bar=1&build_all_lists=1&show_image_borders=0&horizontal_slide_level=2&enlarge_vertical_slide_headers=0&show_slide_details=1&open_in_new_window=1&size=1024x768~~ ~~REVEAL theme=dokuwiki&transition=convex&controls=1&show_progress_bar=1&build_all_lists=1&show_image_borders=0&horizontal_slide_level=2&enlarge_vertical_slide_headers=0&show_slide_details=1&open_in_new_window=1&size=1024x768~~
 +
 +
 +  - Nummerierter Listenpunkt
 +  - f\begin{align*}
 +\boxed{ D = {{\Psi}\over{A}} } \\
 +Test
 +\end{align*}
 +  - f
 +
  
 <wrap footer>Footer content here.</wrap> <wrap footer>Footer content here.</wrap>