Articles

Found 5 Documents
Search

Studi Kelayakan Pemanfaatan Pembangkit Listrik Kincir Air Terapung Di Desa Ella Hilir Kecamatan Ella Hilir Kabupaten Melawi

Jurnal ELKHA Vol 7, No 1 (2015): Edisi Bulan Maret 2015
Publisher : Fakultas Teknik Jurusan Teknik Elektro

Show Abstract | Original Source | Check in Google Scholar | Full PDF (257.795 KB)

Abstract

Abstract– Hydroelectric Power Plant (HEPP) use a boost from the water with a specific discharge and dtransformasikan into electricity by generators. River In Rural District of Ella Ella Downstream Downstream Melawi has the potential to be used as energy alternatives, with water flowing speed of 1m / s to 3 m /s. Utilization of Power Plant Feasibility Study Floating In Water Mill Village District of Ella Ella Downstream Downstream Melawi expected to provide an overview as well as a reference for the public and the government about the prospects and benefits are obtained if done on technology implementation or iplementasi floating waterwheel. Based on the lowest current 1 m / s Watermill floating able to produce 533.70 Watt, the highest river currents capable of producing 144,409.90 Watt, a comparison is electricity derived from PT. PLN with a reference group of R1 / 900 where the electricity tariff (TDL) around Rp. 650, - it is not worth the investment, the comparison is electricity derived from the generator, the power specification 1 kVA and price premium / liter Rp. 6.600, - (January 2015) it is well worth the investment Keywords– hydropower, Watermill, Streams, Generator

HUKUM ISLAM DALAM KEHIDUPAN UMAT

Al AHKAM: Jurnal Kajian Ilmu Hukum dan Syariah Vol 4, No 2 (2014): Al Ahkam
Publisher : Al AHKAM: Jurnal Kajian Ilmu Hukum dan Syariah

Show Abstract | Original Source | Check in Google Scholar

Abstract

Persepsi masyarakat tentang apa yang disebut hukum Islam harus selalu terus dibina sebab hukum Islam mengalami stagnasi pada saat ini, karena fanatisme fikih dengan dasar pengetahuan ilmu agama yang sangat terbatas. Hukum Islam adalah kata pengganti dari dua istilah. Aslinya Syari’ah dan Fikih. Hal ini juga menimbulkan kekacauan pengertian dikalangan Islam maupun luar. Suatu hal yang biasa terjadi dimanapun. Hokum islam sangat eksis dalam kehidupan umat. Sebagian besar mereka bersikap fanatik fiqih. Untuk itu perlu terus ditingkat kembangkan eksistensi dan peran serta profesionalis hukum Islam di Negara hokum Pancasila Indonesia.

PENEGAKAN HUKUM DALAM PERSPEKTIF AL-QUR’AN

Al AHKAM: Jurnal Kajian Ilmu Hukum dan Syariah Vol 5, No 1 (2015): Al Ahkam
Publisher : Al AHKAM: Jurnal Kajian Ilmu Hukum dan Syariah

Show Abstract | Original Source | Check in Google Scholar

Abstract

Holy Quran pay great attention to the issue of the rule of law as one of  the pillars to achieve ishlahal-afarat wa al-mujtama’, although in fact the Qur’an is not a book of statute law. So that the law can be enforced among men, the Qur’an has provided the principles of fundamental importance. The most fundamental principle of justice; whereas the other principle is the elaboration of the principles of justice.

Differential Evolution Algorithm with Triangular Adaptive Control Parameter for SHEPWM Switching Pattern Optimization

International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 8, No 3: September 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Original Source | Check in Google Scholar | Full PDF (678.474 KB)

Abstract

Differential evolution (DE) algorithm has been applied as a powerful tool to find optimum switching angles for selective harmonic elimination pulse width modulation (SHEPWM) inverters. However, the DE’s performace is very dependent on its control parameters. Conventional DE generally uses either trial and error mechanism or tuning technique to determine appropriate values of the control paramaters. The disadvantage of this process is that it is very time comsuming. In this paper, an adaptive control parameter is proposed in order to speed up the DE algorithm in optimizing SHEPWM switching angles precisely. The proposed adaptive control parameter is proven to enhance the convergence process of the DE algorithm without requiring initial guesses. The results for both negative and positive modulation index (M) also indicate that the proposed adaptive DE is superior to the conventional DE in generating SHEPWM switching patterns

Optimum Renewable Fraction for Grid-connected Photovoltaic in Office Building Energy Systems in Indonesia

International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 9, No 4: December 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Original Source | Check in Google Scholar | Full PDF (457.75 KB)

Abstract

This paper analyzes influences of renewable fraction on grid-connected photovoltaic (PV) for office building energy systems. The fraction of renewable energy has important contributions on sizing the grid-connected PV systems and selling and buying electricity, and hence reducing net present cost (NPC) and carbon dioxide (CO2) emission. An optimum result with the lowest total NPC for serving an office building is achieved by employing the renewable fraction of 58%, in which 58% of electricity is supplied from the PV and the remaining 42% of electricity is purchased from the grid. The results have shown that the optimum grid-connected PV system with an appropriate renewable fraction value could greatly reduce the total NPC and CO2 emission.