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STUDI PENGARUH JUMLAH SUDU TERHADAP UNJUK KERJA SAVONIUS WATER TURBINE PADA ALIRAN AIR DALAM PIPA Imron Hamzah; Syamsul Hadib; D. Danardono Dwi Prija Tjahjanac
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (781.511 KB)

Abstract

Rainwater, flowed through a pipe, has potential energy that can be used to drive a turbine coupled with generator. Savonius water turbine with horizontal axis is used here as the turbine. The research compares the Savonius water turbine with different blade number of 2, 4, 6, 8, 10 and 12 using Computational Fluid Design (CFD) of SolidWork 2013. The turbine specifications have the angle of curvature about 70°, the aspect ratio of 1, the end plate ratio of 1,1 and deflector angle of 45°. The data obtained in this paper are the pressure contour of Savonius turbine blade, the velocity of fluid flow and the torque generated. The aims of the research are to obtain the influence of the blade number in the Savonius turbine to the turbine performances and to obtain the best of blade number. The results show that two blades has the best performances compared with the others. It has the highest torque about 5,75 Nm for the same conditions as well. Keywords: power, Savonius turbine, torque, blade, flow
Penyebutan Muwathin sebagai Strategi Inklusivitas Hukum dan Sosial di Indonesia: Telaah Praktis dan Yuridis atas Keputusan Konferensi Besar Nahdlatul Ulama Tahun 2019 Imron Hamzah
As-Syar i: Jurnal Bimbingan & Konseling Keluarga  Vol. 7 No. 2 (2025): As-Syar’i: Jurnal Bimbingan & Konseling Keluarga
Publisher : Institut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/as.v7i2.7803

Abstract

This research examines the practical and juridical consequences of the use of the term muwathin (citizen) in place of the term kafir in the context of Indonesian national law, as recommended in the 2019 Konbes Alim Ulama of Nahdlatul Ulama (NU). This term change is understood as a response to the need to strengthen equality, inclusiveness and tolerance in a multicultural society. This research uses a descriptive qualitative approach with normative and theoretical analyses through theories of multiculturalism, Rawlsian justice, legal pluralism, as well as communication theory and critical law. The results show that practically, the mention of muwathin encourages the recognition of equal rights and obligations for all citizens regardless of religion, removes theological stigma, strengthens unity, and changes public communication and policies to be more inclusive. Juridically, the term supports the principle of a just and non-discriminatory rule of law, encourages revision of legal language, and affirms the limits of authority of religious institutions in the national legal system. The discussion in this article links these changes to the dynamics of a modern plural and democratic nation state. The mention of muwathin is not just a semantic change, but a socio-political and legal strategy to strengthen the social contract and civic nationalism. The conclusion states that this step is strategic in strengthening the principles of justice, equality and harmonious national life, and is an important foothold for the development of an inclusive national law.