id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
alkej-59	Hoshi, Hisham Assi; Ahmed, Israa S.; Abdulmunem, Abdulmunem R.	تأثير استخدام المركب لفوهة مربعة ذو جنيح مع شريط حلزوني على الخصائص الحرارية في أنبوب مبادل حراري	2018	8	.pdf	application/pdf	2891	166	66	Data Reduction The friction factor (�) is given by � = ∆� �� � �� � …(1) Heat absorbed by the air (Qair) is less by 5 % than the heat provided by the electrical heater (VI) due to the loss of heat to the surrounding ����= ���� = �� ����� − ��)=VI- ����� (2) The heat transfer by convection from the test tube section can be evaluated as follows: ���� = ℎ!��# − �$) …(3) Numerous investigations using insertion of various turbulators configurations on the improvement of heat transfer were performed.	cache/alkej-59.pdf	txt/alkej-59.txt