http://220.247.167.101:8080/xmlui/handle/123456789/25 2026-06-06T22:30:15Z 2026-06-06T22:30:15Z Abdullah, Md Abedin, Mohammad Zoynal Hossen, Saddam http://220.247.167.101:8080/xmlui/handle/123456789/41 2023-09-24T08:30:22Z 2022-01-01T00:00:00Z

Effects of Fire Hazards Due to Leakage in Gas Circulation Lines in Bangladesh Abdullah, Md; Abedin, Mohammad Zoynal; Hossen, Saddam Fire hazards caused by leakages in gas circulation lines are dangerous and pose a threat that results in a significant loss of wealth, lives, and the environment. By adopting significant precautions, the risks of fire hazards can be reduced effectively through the use of new technologies and preventive measurements of the system. In addition, the effects of fire hazards due to leakage in gas circulation lines in the buildings as well as in the other systems can be assessed to create the context of preventive measures for a fire protection system in a way to overcome the fire hazards in gas circulation lines. The paper aims to review the effects of fire hazards due to leakage in gas circulation lines in Bangladesh. It is noted that in Bangladesh during 2018-2019, the total gas distribution line in the Titas gas system was measured as 13,138 km where the pressure-reducing system or gas riser was found as 1.2 million and the number of customers was found as 2.866 million. In the system, the number of fire accidents that occurred was 208 in the circulation system. Because of connecting the illegal gas lines and poor maintenance of the system, Bangladesh faces significant fire hazards every year. To avoid this kind of problem, proper maintenance along with the varieties of new technologies incorporating sensors and microcontrollers can be utilized.

2022-01-01T00:00:00Z Alam, Md. Mahmodul Ahmed, Irfan Joy, Md. Golam Rasul Kamal, Maksud Anim, Md. Tahmid Islam, Tanjila Amin, Iftekhar http://220.247.167.101:8080/xmlui/handle/123456789/37 2023-09-24T04:58:56Z 2021-01-01T00:00:00Z

DEVELOPMENT AND PERFORMANCE OPTIMIZATION OF VERTICAL AXIS WIND TURBINE USING AVP Alam, Md. Mahmodul; Ahmed, Irfan; Joy, Md. Golam Rasul; Kamal, Maksud; Anim, Md. Tahmid; Islam, Tanjila; Amin, Iftekhar This investigation focuses on the development and performance optimization of Vertical Axis Wind Turbine (VAWT) by using Asymmetric Vortex Provider (AVP). This experiment has been carried out at BAUST campus, Saidpur where the local velocity is much lower than the coastal areas. The objective was to build a VAWT with a very low starting speed as well as performance optimization which have been accomplished by using 6 blade section AVP made of PVC. This study shows that after using AVP, this VAWT is capable of producing power at very low wind speed under different conditions. It also depicts that using AVP doesn’t increase the moment of inertia whereas it increases the RPM tremendously at any wind speed along with the turbine efficiency. The RPM was measured and compared at different conditions and it shows that at the same wind speed, the rpm of VAWT with AVP is much higher than the rpm of VAWT without AVP. The local velocity of the turbine is also increased by using AVP. This whole investigation suggests that, AVP can be a solution for those areas where wind speed is not enough to rotate the turbine blade to produce electric power.

2021-01-01T00:00:00Z