In this research has done the densification process of jabon wood and its measuring 5/7 cm into 5/5 cm by heat compression. The research objective determines the reliability of wood densification technology as improving the physical and mechanical wood properties. This research also used U steel as a tool press. The results showed that densification in jabon wood can improve its physical properties as indicated by the increase in specific gravity amounted to 28.95 percent; its density increased 26.83 percent; as well as water content declined of 32.68 percent. The mechanical properties of jabon wood shown by parameters like the strength perpendicular to fiber increased to 51.44 percent; MOE increased to 32.93 percent, and MOR increased to 36.14 percent. Treatment of densification on jabon wood has increased the strong class of jabon wood from strength class IV into a strength class III based on specific gravity and value of MOR rise to strength class II. Densified jabon wood is suitable for use as building construction materials and gives its aesthetic value because its color is more attractive. The architectural design of urban buildings can also use the densified wood material as it proves to

Desain gabungan antara modifikasi Savonius dan modifikasi Darieus (menggunakan geometri airfoil NACA 0018) dirancang memanfaatkan kecepatan angin rendah yang akan di konversi menjadi energi listrik alternatif sehingga dapat dimanfaatkan untuk rumah tangga dan komersil. Dikarenakan kedua jenis turbin ini memiliki kelebihan dan kekurangan masing-masing, maka dirancang pengabungan dari modifikasi kedua turbin ini yang mampu memberikan daya yang lebih besar. Pada kecepatan yang sama yaitu 6,1 m/s dilakukan pengujian dan diperoleh daya yang dihasilkan oleh turbin modifikasi Savonius ialah 3,32 Watt dan daya yang dihasilkan oleh turbin modifikasi Darrieus ialah 14,62 Watt, sementara daya yang dihasilkan oleh turbin modifikasigabungan lebih tinggi yaitu17,86 Watt. Dari hasil tersebut dapat disimpulkan bahwa turbin modifikasigabungan 1,2 kali lebih besar dari modifikasi Darieus, dan daya yang dihasilkan oleh turbin modifikasi gabungan 5,38 kali lebih besar dari modifikasi Savonius. Sementara koefisien daya dihasilkan oleh turbin modifikasi gabungan 1 kali lebih besar dari modifikasi Darieus, dan koefisien daya yang dihasilkan oleh turbin modifikasi gabungan 5,05 kali lebih besar dari modifikasi Savonius. Sehingga penggabungan modifikasi turbin Darieus-Savonius pada satu poros dapat meningkatkan efisiensi dalam mengkonversi energi angin menjadi daya listrik.

The National Energy General Plan policy is one of the government's focuses on controlling the use of renewable energy in line with the development of the need for energy use for the community, especially in the electricity sector. Electrical energy is energy that is very important for human needs, where every human being is very dependent on electricity for their daily needs. Currently, there is a crisis of fossil resources, so renewable energy can be developed. One renewable energy that is easy to develop is a wind turbine by utilizing the energy of the wind that blows. Indonesia has started to pay attention to increasing the efficiency of electricity generation, especially wind power. The type of turbine planned is the Darrieus type vertical axis wind turbine (VAWT) using a modified NACA Airfoil 2414 geometry with variations in wind speed. At a speed of 7,61 m/s from the test results obtained the power produced by the turbine is 20,78 watts with a voltage of 11,61 Volts and an electric current of 1,79 Amperes and at 354 rpm generator rotation. from the results obtained, the higher the wind speed, the higher the rotation produced by the turbine.

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