Zobrazeno 1 - 8
of 8
pro vyhledávání: '"P K Dörfler"'
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLIII-B1-2022, Pp 453-458 (2022)
In contrast to stationary systems, mobile robots have an arbitrarily expandable workspace. As a result, the spatial dimensioning of the task to be mastered plays only a subordinate role and can be scaled as desired. For the construction industry in p
Externí odkaz:
https://doaj.org/article/d4bb79e14cf84d578bb9995dc2eab318
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 1079:012050
Hydropower plants equipped with Francis turbines may enter unstable conditions at high turbine discharge [13], with strong pulsations of power output and internal pressure. The cause are oscillations of a vapor-filled cavity in the vortex flow downst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::026a516ef769f4ac688f6535a4a43e21
https://doi.org/10.1088/1755-1315/1079/1/012050
https://doi.org/10.1088/1755-1315/1079/1/012050
Autor:
P. K. Dörfler
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 405:012015
A forced oscillation of system pressure occurs when a Francis turbine operates at partial load, typically between 50-85% of best-efficiency flow. Its cause is the precession of the draft tube vortex; due to cavitation of the vortex, the oscillation m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::975bcafc55231cf2809cb9cd92dacdbf
https://doi.org/10.1088/1755-1315/405/1/012015
https://doi.org/10.1088/1755-1315/405/1/012015
Autor:
P. K. Dörfler
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 240:052023
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72f59789c89a278559a3becba3a6d9f0
https://doi.org/10.1088/1755-1315/240/5/052023
https://doi.org/10.1088/1755-1315/240/5/052023
Autor:
P. K. Dörfler
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 240:052022
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::373b5f5890342c124637053a248ee0d6
https://doi.org/10.1088/1755-1315/240/5/052022
https://doi.org/10.1088/1755-1315/240/5/052022
Publikováno v:
La Houille Blanche. 85:34-40
When operated at speed-no load, the vertical single-stage pump-turbine at Bhira pumped storage plant (India) exhibited at rated speed oscillations of speed, head and guide vane opening with a period of 15 seconds. The original PID speed governor coul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ef1abbe1e15c1c95ba649bc6519a07e
https://doi.org/10.1051/lhb/1999017
https://doi.org/10.1051/lhb/1999017
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 12:012026
Francis turbines may produce spontaneous pulsations of pressure and output power when operating at very high discharge. In such cases there is a cavitating central vortex in the draft tube with variable cavity volume Vc. Until today, researchers agre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52fd38b8e5ed8371624d53b88f0319d9
https://doi.org/10.1088/1755-1315/12/1/012026
https://doi.org/10.1088/1755-1315/12/1/012026
Autor:
P K Dörfler
Publikováno v:
IOP Conference Series: Earth & Environmental Science; Nov2016, Vol. 49 Issue 5, p1-1, 1p