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در این پژوهش، یک موتور هیبریدی با سوخت پلی‌اتیلن دانسیته بالا و اکسندة اکسیژن گازی مورد آزمایش قرار گرفته است. برای این منظور پاشش اکسنده در محفظة احتراق از طریق یک انژکتور محوری گازی صورت گرفته است. با انجام آزمایش‌ها و استفاده از تکنیک کاهش داده‌های آزمایش، تأثیر عواملی چون شار جرمی، فشار محفظة احتراق و فاصلة طولی از ابتدای گرین بر نرخ پسروی سوخت پلی‌اتیلن بررسی شده است. همچنین، تأثیر استفاده از پیش‌محفظة احتراق بر عملکرد موتور هیبریدی بررسی شده است. آزمایش‌ها نشان می‌دهد که استفاده از پیش‌محفظة احتراق موجب یکنواخی نرخ پسروی در طول موتور خواهد شد. در این حالت، نرخ پسروی سوخت مستقل از فاصلة طولی از ابتدای گرین بود. در ادامه، وابستگی نرخ پسروی به فشار محفظة احتراق به‌دست آمد که با نتایج تجربی موجود مطابقت داشت. در نهایت، رابطة نرخ پسروی سوخت برحسب فشار محفظة احتراق و شار جرمی کل عبوری از هر مقطع به‌دست آمد.
Experimental determination of PE regression rate with an axial GOX injection
In this paper, a hybrid motor performance with high density poly ethylene (HDPE) as fuel and gaseous oxygen (GOX) as oxidizer was studied. Oxidizer was injected into nozzle with an axial injector. Effect of parameters such as mass flux, combustion chamber pressure, and distance from grain lead were studied through tests and by means of data reduction techniques. Besides, effect of utilizing pre-combustion chamber was studied. It was shown that using pre-combustion chamber helps to have an even regression in axial direction. In this case, regression rate was independent from axial location from grain lead. Dependency of regression rate to combustion chamber pressure was also determined which showed a good agreement with available empirical data. Finally, a classic regression rate relation for poly ethylene was determined in terms of total mass flux and combustion chamber pressure.
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دوره 7، شماره 1 - شماره پیاپی 1
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حیدری, محمدمهدی, & قدیری معصوم, نورالدین. (1397). تعیین تجربی نرخ پسروی سوخت پلی‌اتیلن با پاشش محوری اکسیژن گازی. دانش و فناوری هوافضا, 7(1), 35-46.
محمدمهدی حیدری; نورالدین قدیری معصوم. "تعیین تجربی نرخ پسروی سوخت پلی‌اتیلن با پاشش محوری اکسیژن گازی". دانش و فناوری هوافضا, 7, 1, 1397, 35-46.
حیدری, محمدمهدی, قدیری معصوم, نورالدین. (1397). 'تعیین تجربی نرخ پسروی سوخت پلی‌اتیلن با پاشش محوری اکسیژن گازی', دانش و فناوری هوافضا, 7(1), pp. 35-46.
حیدری, محمدمهدی, قدیری معصوم, نورالدین. تعیین تجربی نرخ پسروی سوخت پلی‌اتیلن با پاشش محوری اکسیژن گازی. دانش و فناوری هوافضا, 1397; 7(1): 35-46.