التفاصيل البيبلوغرافية
| العنوان: |
Investigations of flame front propagation between interconnected process vessels: Development of a new flame front propagation time prediction model. |
| المؤلفون: |
Markus Roser, Albrecht Vogl, Siegfried Radandt, W. Malalasekera, Robert M. Parkin |
| سنة النشر: |
1999 |
| المجموعة: |
Loughborough University: Figshare |
| مصطلحات موضوعية: |
Mechanical Engineering not elsewhere classified, Dust and gas explosions, Reduced explosion over-pressure, Pressure venting, Flame front propagation, Interconnected vessels, Explosion disengagement, Explosion interruption, K value |
| الوصف: |
For the case where a dust or gas explosion can occur in a connected process vessel, it would be useful, for the purpose of designing protection measures and also for assessing the existing protection measures such as the correct placement, to have a tool to estimate the time for flame front propagation along the connecting pipe. Measurements of data from large-scale explosion tests in industrially relevant process vessels are reported. To determine the flame front propagation time, either a 1 m3 or a 4.25 m3 primary process vessel was connected via a pipe to a mechanically or pneumatically fed 9.4 m3 secondary silo. The explosion propagation started after ignition of a maize starch/air mixture in the primary vessel. No additional dust was present along the connecting pipe. Systematic investigations of the explosion data have shown a relationship between the flame front propagating time and the reduced explosion over-pressure of the primary explosion vessel for both vessel volumes. Furthermore, it was possible to validate this theory by using explosion data from previous investigations. Using the data, a flame front propagation time prediction model was developed which is applicable for: —gas and dust explosions up to a K value of 100 and 200 bar m s-1, respectively, and a maximum reduced explosion over-pressure of up to 7 bar; —explosion vessel volumes of 0.5, 1, 4.25 and 9.4 m3, independent of whether they are closed or vented; —connecting pipes of pneumatic systems with diameters of 100–200 mm and an air velocity up to 30 m s-1; —open ended pipes and pipes of interconnected vessels with a diameter equal to or greater than 100 mm; —lengths of connecting pipe of at least 2.5–7 m. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
2134/5504; https://figshare.com/articles/journal_contribution/Investigations_of_flame_front_propagation_between_interconnected_process_vessels_Development_of_a_new_flame_front_propagation_time_prediction_model_/9545261Test |
| الإتاحة: |
https://figshare.com/articles/journal_contribution/Investigations_of_flame_front_propagation_between_interconnected_process_vessels_Development_of_a_new_flame_front_propagation_time_prediction_model_/9545261Test |
| حقوق: |
CC BY-NC-ND 4.0 |
| رقم الانضمام: |
edsbas.7F64735F |
| قاعدة البيانات: |
BASE |
