TY  - JOUR
T1  - Experimental Investigation the Effect of Fluidize Bed Concentration on
Heat Pipe Performance
AU - Wahhab Aljibory, Mohammed AU - Hassanal-Ghazali, Hafidh AU - Alkharasani, Taher Habeeb 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 23
SP  - 9946
EP  - 9952
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.9946.9952
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.9946.9952
KW  - Heat pipe
KW  -fluidization
KW  -particle fluidize bed
KW  -thickness
KW  -air velocity
KW  -manufactured
AB  - An experimental research was carried out to study the effect of flowing a solid particle with hot air on heat pipe performance, three heat pipes were manufactured with outer and inner diameter of 22.225, 19.8 mm, respectively and with 1000 mm long for both evaporator, condenser and adiabatic sections were (64.5, 34.5,1) cm long, respectively. The three heat pipes were fixed in a wooden box and the cement fly ash was used as a bed particle cross the evaporator part with the hot air, cement fly ash properties were measured experimentally. Tests were done with air velocity range of 3.5-5.5 m/sec and solid particle bed thickness of 2.5, 5 cm, the results show that the Nusselt number was enhanced by 61.5% for the case of 5 cm particle bed thickness and (5.5 m/sec) air velocity with respect to the case of flow of air without solid particle. An acceptable pressure drop will happened for this case which is not exceed (39%).
ER  -