International Journal of Research In Vocational Studies (IJRVOCAS)
VOL. 2, NO. 1, APRIL 2022, PP. 01~04
Print ISSN 2777-0168| Online ISSN 2777-0141| DOI prefix: 10.53893 https://journal.gpp.or.id/index.php/ijrvocas/index
Study Combination Vertical Wind Turbine in The Mining Area
RD. Kusumanto
1,*, Fatahul Arifin
2, Carlos R. S.
1, Dicky Septrianto
2, Rusdianasari
3, RM. Fauzi
3, Yusuf Dewantoro Herlambang
41Department of Electrical Engineering, Politeknik Negeri Sriwijaya, Jalan Srijaya Negara, Palembang, Indonesia
2Department of Mechanical Engineering, Politeknik Negeri Sriwijaya, Jalan Srijaya Negara, Palembang, Indonesia
3Department of Renewable Energy Engineering, Politeknik Negeri Sriwijaya, Jalan Srijaya Negara, Palembang, Indonesia 4Department of Mechanical Engineering, Politeknik Negeri Semarang, Jl. Prof. Sudarto, Semarang, Indonesia
Email address:
*Corresponding author
To cite this article:
Kusumanto, RD. ., Arifin, F. ., R. S., C. ., Septrianto, D. ., Rusdianasari, Fauzi, R. ., & Herlambang, Y. D. . Study Combination Vertical Wind Turbine in The Mining Area. International Journal of Research in Vocational Studies (IJRVOCAS), 2(1), 01–04.
https://doi.org/10.53893/ijrvocas.v2i1.96
Received: January 22, 2022; Accepted: April 04, 2022; Published: April 15, 2022
Abstract:
Wind Technology has developed rapidly because it is environmentally friendly alternative energy. The speed of the wind to run the wind turbine is able to exhaust a fan and ordinary wind sources. Tanjung Enim is one of Indonesia's areas, that have comparatively little wind energy. It has a wind velocity of 1.5 - 3 m/s. Tanjung Enim has coal mining, and the blower is used for air in the conveyor line of the mining. It is the potential to generate wind turbines. because the wind velocity in this area is 8 m /s. This study examines the enactment of blades on vertical wind turbines, namely Savonius with 3 blades combine with Darrius 3 blades. The result of the voltage output currently created by of vertical wind turbine maximum is 8.42 Volt and 345 Ampere.Keywords:
Blade, Darrius, Savonius, Technology, Wind1. Introduction
At this time all countries are thinking about new natural resources that can replace the need for energy for energy security that is used for the need for that energy source.
Therefore, all countries will utilize energy resources that can produce large amounts of energy. As it is known that Indonesia has been blessed by God Almighty with natural resources that waste both fossil energy and new renewable energy, therefore the Indonesian government encourages the increase in the use of new and renewable energy such as solar, water, air, and bio energy. mass. In this case, besides that, it is possible to find energy sources from what is used in mining, such as waste energy from exhaust fans in mining areas. The widn energy is one of the least select renewable energy resources to produce electricity deficient CO2 emission with a growth proportion of 30% every year [1-4].
The wind turbine is able to use the wind which has low speed to driving the blades. Tanjung Enim is the one of
Indonesia's areas with a relatively low speed wind area, which has wind velocity in 1.5 - 3 m/s.
Many researchers studied about the vertical wind turbine which is used in the low speed area. The Savonious vertical turbine used in the study, where the shape of the blade is prepared with a half-cylinder shape. The performance of the wind turbine is strongly affected by the area of swept. Drag and lift force is effected by the area of swept [5]. Kamal et al, studied about of the Darrieus wind turbine with four blade at the Jamik Bukit Asam Mosque Complex Tanjung Enim South Sumatera, Indonesia [6]. Irawan et al. researched the performance the Giromill type wind turbine in Muara Enim, South Sumatera [7]. Susandi et. al. studied about the modelling the horizontal wind turbine for simulation to get the best design of wind turbine [8]. Utama et al, investigated the Darrieus H type and Savonius type wind turbine with wind speed variable [9]. Germana et al. obtained the results of
2 RD. Kusumanto et al.: Study Combination Vertical Wind Turbine in The Mining Area
simulation from the design combination of the Savonius with 2 blades turbine and the Darrieus with 3 blades turbine has better power compare with combination the Savonius with 3 blades turbine and the with Darrieus 3 blades turbine at wind velocity for 4 m/s [10-11].
As it is known that the vertical turbine that is widely used is only one turbine, and for that, a new form is sought, which in this case can use two combinations of turbine types such as between gero mill turbines and savinous or others. For this reason, in this research, a combination turbine design is designed, namely the Sanonius turbine and the Darrius turbine.
The outcomes display that Cp maximum is 51% while the Savonius turbine harmony is 0. The turbine efficiency will decline with the rise in the blade correspondence percentage.
Due to the tip speed ratio (λ) of the Savonius turbine is inadequate, the relationship area is very minor, so it requests to be in the realistic size to produce the supreme possible Cp from the turbine [12].
Figure 1. Gupta’s Design of Darrieus and Savonius Combination Turbine [11]
Wakui et al., associated the performance from the united Darrieus and Savonius turbines with altered formations [5].
One of the new renewable energy is wind energy which can drive turbines. This energy is environmentally friendly energy that has little impact on the environment. To utilize wind energy, we need a tool that can collect wind energy, one of which is a turbine. which this turbine will produce energy, namely if the wind speed is at a minimum speed to move the turbine. Now another source of energy that has not been utilized is the mining area which has an exhaust fan in the conveyor line area [13]. The exhaust is known to have a constant speed, this is caused by an electric motor, but the energy released is not utilized even though the potential for the energy output of the exhaust fan in this area is very large, namely the resulting wind speed is 8 m/s. With such a large speed it is very possible to be able to generate a turbine that can be utilized for its energy.
Based on the studies that have been carried out, a suitable turbine design is found to be installed in the exhaust fan area
so that it can produce a source of electrical energy that can at least illuminate the area without adding another power source, namely by utilizing the exhaust energy from the fan itself. In this case, the design carried out for this research is a combination of Darrius and Savonius turbines with a total of 3 blades for each turbine combination.
2. Methodology
The design wind turbine is 3 blades of Savonius combined with 3 blades of Darrieus. The rate wind from the exhaust is unceasing at 8 m/s. The pattern is able to appearance the optimum blade types which can use for the tunnel area. The figure 2 shown the two design combination of blades type for the vertical wind turbine.
The blades material of turbine use recycles plastic buckets for blade of Savories and PVC pipe for blade of Darrieus then the steel pipe is used for tower in this experiment. Then the flowchart research can be seen in figure 3.
The research start from design the wind turbine, then install it in the exhaust fan of mining. Afterward, collecting data and calculated. Finally, do discussion for getting the conclusion.
Figure 2 (a) Design and (b) Actual Savonius-Darrieus VAWT
Figure 3 Flow Research Chart Diagram
https://doi.org/10.53893/ijrvocas.v2i1.96 3
3. Result and Discussion
The wind turbine was experienced by matching two blades forms to get the optimum blade for request using wind from exhaust wind in the tunnel area. The research gets the data of current for each blade, voltage and turbine speed. The table 1 and figure 4 and 5 show the characteristics of vertical wind turbines with 3 blades of Savonius combined with 3 blades of Darrieus.
From all data in table 1, the rpm of the turbine average is 320 rpm, then the Trs average is 1.87.
Table 1. The Measuring of Savonius 3 Blades Combined with Darrieus 3 Blades Data
Time
Savonius 3 Blades Combined With Darriues 3 Blades Wind
Speed (m/s)
Voltage (V)
Current (mA)
Turbine Speed
( rpm) Tsr
8:00 8.06 8.21 241.90 314.06 1,91
9:00 8.29 8.19 344.90 343.07 1,96
10:00 8.19 8.29 265.72 319.11 1,88
11:00 8.17 8.30 302.08 332.19 1,92
12:00 8.18 8.15 265.19 319.20 1,88
13:00 8.30 8.35 220.40 323.21 1,87
14:00 8.01 8.12 235.17 298.90 1,81
15:00 8.17 8.35 297.98 327.30 1,91
16:00 8.05 8.07 236.56 301.08 1,82
Figure 4. Assessment Wind Velocity, Turbine Speed, and Current of Savonius 3 Blades Combination with Darrius 3 Blades Wind Turbine
It can be seen in figure 3 the maximum current is 345.9 mA at 9 o’clock, while the minimum current is 230.17 at 14.00 o’clock. Then the maximum voltage is 8.42 Volt at 9 o’clock, while the minimum voltage is 8.03 Volt.
Figure 5. Assessment Wind Velocity, Voltage and Load of Savonius 3 Blades Combination with Darrius 3 Blades Wind Turbine
.
4. Conclusion
In conclusion, the type of 3 blades Savonius combination with 3 blades Darrius can be applied in the area of the exhaust fan because it is able to be absorbed the wind energy. This power generating can be applied to bright the exhaust fan area.
Even though, in this study there is the limitation in the collecting data due to the limitation of observation in this area.
Acknowledgements
The authors would like to thank the Ministry of Cultural and Education of Republic of Indonesia, Directorial of Vocational Higher Education, Politeknik Negeri Sriwijaya through Research Development Funding 2021 and PT Bukit Asam, Tbk which has supported and helped the author to complete this research
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