| contributor author | Abraham Kribus | |
| contributor author | Irina Vishnevetsky | |
| contributor author | Andrei Sytnik | |
| contributor author | Moshe Meri | |
| contributor author | Amnon Yogev | |
| date accessioned | 2017-05-09T00:14:17Z | |
| date available | 2017-05-09T00:14:17Z | |
| date copyright | August, 2004 | |
| date issued | 2004 | |
| identifier issn | 0199-6231 | |
| identifier other | JSEEDO-28356#842_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/130761 | |
| description abstract | Tracking motions in current heliostats are usually performed in discrete steps, even though the motion of the sun is continuous. Aiming errors due to the discrete steps are often about 1 mrad or more. A significant reduction of tracking error by smooth continuous tracking is presented. The implementation uses an electronic speed control unit to modify the rotational speed of the two AC motors on an existing heliostat. The continuous tracking system was implemented and successfully operated at the Weizmann Institute heliostat field. Measurements of heliostat motion show that aiming error due to tracking intervals was practically eliminated. A comparison of heliostat motions and flux on the target in step-tracking and continuous tracking modes is reported. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Continuous Tracking of Heliostats | |
| type | Journal Paper | |
| journal volume | 126 | |
| journal issue | 3 | |
| journal title | Journal of Solar Energy Engineering | |
| identifier doi | 10.1115/1.1668026 | |
| journal fristpage | 842 | |
| journal lastpage | 849 | |
| identifier eissn | 1528-8986 | |
| keywords | Measurement | |
| keywords | Motion | |
| keywords | Errors | |
| keywords | Motors AND Engines | |
| tree | Journal of Solar Energy Engineering:;2004:;volume( 126 ):;issue: 003 | |
| contenttype | Fulltext | |