|
|
| ghorbani, zahra; Hassan-Beygi, Seyed Reza; Ghobadian, Barat. |
| A detailed experimental study has been conducted to evaluate the effect of the two developed enclosures (simple and modified) on the noise emission of a small generator fuelled by natural gas. The sound of generator without enclosure and covered by developed enclosure was measured in front of the generator exhaust at five electric loading conditions (0%, 25%, 50%, 75% and 100% load). The sound was measured on a test site was managed according to SAE J1074 test procedure. The sound signals were measured using a precision sound level meter. The time domain sound signals were recorded in a lap-top computer hard disk. The digital sound was converted to the frequency domain using a developed Fast Fourier Transform (FFT) program to achieve narrow band signals.... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3707 |
| |
