Sosialisasi Pemanfaatan Tenaga Surya Sebagai Sumber Energi Listrik Di Desa Ciherang Pondok, Kabupaten Bogor

One of the obstacles faced in providing electricity in rural areas is renewable energy sources, especially solar energy, which potentially in all rural areas also require inexpensive costs plus a lack of knowledge about these technologies. With a variety of goodness that exists in solar energy, counseling or socialization must be given about its utilization. Ciherang Pondok Village is located on a plateau in the area of ​​Caringin District, Bogor Regency. The village is located at a strategic point, so it has enough light intensity to utilize solar power as a source of electrical energy. Extension activities are carried out by the lecture method to convey various general information about the use of solar power as a solution to the problem of electrical energy in the countryside. As a result, the knowledge of the local community increases and can apply directly independently how to use solar energy to be used as a source of electrical energy so that the availability of energy and people's access to energy are guaranteed at affordable prices in the long term while paying attention to environmental sustainability

IMPLEMENTASI PENERAPAN METODE SIX SIGMA PADA PROSES PERAKITAN ELEKTRO MOTOR (STUDI KASUS: PT. TATUNG ELECTRIC INDONESIA)

Tatung Electric Indonesia is a peripatetic company in manufacturing industry assembling of electro motor. So that product yielded by PT. Tatung Electric Indonesia can continue to fulfill requirement of customer, company try to improve the quality of its product by minimizing defect which during the time still happened. This defect arising caused by the existence of variation at yielded product and also that happened in the process. Six Sigma represent control technique or method to reach storey or level quality of 3.4 DPMO ( Defects Per Million Opportunities), which applied by Motorola company since year 1986. Applying strategy to be used is Define-Measure-Analyze-Improve-Control (DMAIC). This Method represent recuring step and form a make-up of quality cycle. Calculations show the company is 3.641 sigma level with DPMO 15,830. The sigma levels are on the average level of sigma industries in Indonesia (3-4 sigma). Increased levels of sigma would happen if the company immediately continuous improvement over time. Conclusion of the application of Six Sigma is the DMAIC method in the assembly process of electro motors can analyze and reduce disability that occurs that will increase the quality of products

PENGARUH KINERJA DOSEN TERHADAP KEPUASAN MAHASISWA

Perhatian kepuasan atau ketidakpuasan konsumen (mahasiswa) semakin besar. Semakin banyak pihak yang menaruh perhatian terhadap hal ini. Salah satu pihak yang banyak berhubungan langsung dengan kepuasan dan ketidakpuasan di perguruan tinggi adalah mahasiswa. Persaingan yang semakin ketat, banyaknya perguruan tinggi yang terlibat dalam pemenuhan kebutuhan dan keinginan mahasiswa menyebabkan setiap perguruan tinggi menempatkan orientasi pada kepuasan mahasiswa sebagai tujuan utama sehingga  semakin banyak pihak yang menaruh perhatian terhadap kepuasan dan ketidakpuasan mahasiswa di peguruan tinggi. Adanya sedikit ketidakpuasan mahasiswa terhadap dosen.dengan munculnya 2 skor yang terkecil pada point pertanyaan 3 dan 9 maka, dosen dapat lebih memperbaiki lagi kinerjanya terutama menambah diskusi dalam setiap tatap muka dan memperbaharui bentuk pengajaran agar menambah minat dan semangat belajar mahasiswa dengan keaktifan dosen dan mahasiswa berimbang dalam kuliah, sehingga tercipta nilai maksimal dalam kualitas pelayanan terhadap mahasiswa

Pengembangan Model Perencanaan Alokasi Pesanan Pada Fungsi Koordinasi Produksi Untuk Meminimasi Biaya Produksi Dan Biaya Pengiriman

In many real situations, the estimated demand is very uncertain. This uncertainty has the tendency to greater degree for next coming period of time. Inefficiency of order management can give impact to customer service, order cycle time and operational costs for an order. Order management is a series of related to the management of customer orders using the standard order document. The main focus of this research is the development model of the planning system in coordination function to allocate production orders into the use of different capacities. The test uses three different distribution and calculating the total cost for 30 periods. The goal is to achieve an efficient and effective system taking into account the availability of generating capacity and minimize total costs of production and delivery. Based on experiments with a number of orders, the calculation of the total cost of the proposed method in accordance with the total cost equation. The total cost of the trial simulation on each distribution is influenced by the number of demands in each period

Machining Untuk Mengatasi Ovality Pada Cylinder Transition Turbin Gas MW701D Di UP Gresik

In the gas turbine will function cylinder transition is important, therefore, the need for a replacement part is needed. At this time, the condition of the cylinder transition caused a lot of experience working padadaerah keovalan high temperature so that deformation of the material merupakanpenyebab keovalan.Akibat keovalan the transition cylinder assembly process between basketball combustors and transition piece cylinder connected with the cylinder transition becomes difficult and takes a relatively longer and yield less than the maximum. Furthermore, the process of turning cylinder oval transition so as to re-round, this process requires a cylinder that has been available in the warehouse and use the Gresik Power Unit 1 set lathe which has existed in the workshop Maintenance Service Unit of the Eastern Region and the measuring instrument. Turning is done through the same transition smallest diameter cylinder with a diameter transition piece (Ø 335 mm) After the machining process is done the testing process transition cylinder machining results, the tests performed, among others, hardness test, and penetrant testing test aims to determine whether a decline in the quality of material , and make sure no material defects occur after the machining process. Reduction of the maximum allowable thickness is 3.2 mm atau30% recommendation from manual book

Analisa Kapasitas Force Draft Fan Dengan Bahan Bakar Batubara Kualitas Rendah

Coal power plant is designed based on a particular coal quality. Changes in coal quality will affect the quality of combustion and changes in combustion air. This study will describe the analysis of changes in coal quality on the ability of the force draft fan covers theoretical air, the percentage of air, capacity and force draft fan itself, and to analyze whether the capacity of force draft fan that existed at the time the design is adequate to the quality of coal that apply now .Berdasarkan calculation of theoretical air force draft fan air is 306 300 kg / s with the design power of 811 909 kW. Calculation of actual data shows the average air flow in the period from March to May was 307 610 kg of air / s. The capacity is still inadequate because of changes in the quality of the coal used is not too large

PENGARUH PENAMBAHAN SERBUK ARANG CANGKANG SAWIT TERHADAP KUAT GESER LANGSUNG PADA TANAH LEMPUNG

Salah satu jenis tanah berbutir halus adalah tanah lempung yang memiliki sifat kohesi dengan tingkat plastisitas yang rendah sampai dengan tinggi dan daya dukung yang rendah. Tingginya tingkat plastisitas dapat menyebabkan tingginya potensi mengembang tanah lempung. Untuk mengurangi plastisitas dan meningkatkan daya dukung pada tanah lempung  sehingga perlu adanya perbaikan parameternya. Metode perbaikan yang sederhana adalah stabilisasi kimia. Pada penelitian ini digunakan serbuk arang cangkang sawit sebagai bahan stabilisasi tanah lempung. Serbuk arang cangkang sawit yang ditambahkan berdasarkan berat kering tanah bervariasi mulai 5%, 10% dan 15%. Penambahan serbuk arang cangkang sawit tersebut bertujuan untuk mengetahui pengaruhnya terhadap plastisitas dan parameter kuat geser tanah lempung. Hasil pengujian di laboratorium didapatkan tingkat plastisitas tanah lempung menurun seiring dengan penambahan serbuk arang cangkang sawit. Sedangkan untuk parameter kuat geser diketahui bahwa nilai kohesi mencapai nilai optimum dengan variasi penambahan serbuk arang cangkang sawit 10% dengan nilai sebesar 44,04 kPa. Namun hal tersebut tidak berlaku dengan nilai sudut geser dalam yang semakin lama semakin meningkat seiring dengan bertambahnya serbuk arang cangkang sawit. Penambahan serbuk arang cangkang sawit pada tanah lempung dapat menyebabkan hilangnya sifat kohesif dan tanah lempung menjadi lebih berbutir

Rancang Bangun Gasifier Tanpa Blower Berbahan Bakar Arang Limbah Perkebunan Kelapa Sawit

Dikenal sebagai salah satu negara yang memiliki kebun kelapa sawit terluas, terbuka peluang besar bagi Indonesia untuk menggunakan potensi sumber daya energi terbarukan untuk menghasilkan energi listrik, terutama untuk daerah-daerah pedesaan atau kawasan terpencil. Limbah kelapa sawit dapat dimanfaatkan sebagai sumber bahan bakar dalam  proses gasifikasi untuk menghasilkan syntetic gas (syngas) yang akan digunakan untuk menghasilkan energi listrik. Proses gasifikasi sangat dipengaruhi oleh reaktor gasifier agar gas yang dihasilkan memiliki nilai kalor tinggi dan bersifat mampu bakar. Penelitian ini bertujuan untuk merancang dan membuat reaktor gasifier tipe updraft tanpa blower sehingga tidak memerlukan energi listrik dalam pengoperasiannya, akan tetapi menggunakan daya hisap mesin. Desain ini sesuai untuk pembangkit listrik skala kecil yang tidak terhubung ke jaringan listrik (off-grid) di daerah pedesaan. Berdasarkan perhitungan, ketersediaan energi biomassa diketahui 2113,8 MJ dan hasil rancang bangun gasifier ini diketahui untuk luas penampang reaktor 375 cm2 dan untuk tinggi 100 cm dengan bahan baku 2.47 kg/jam serta menghasilkan daya output dengan kapasitas 5 kW. Penelitian menggunaan genset gasolin dengan output maksimal 2,5 kW. Pada percobaan terakhir, gasifier dioperasikan selama 3 jam dengan menggunakan beban 1 kW menghabiskan arang sebanyak  6.9 kg. percobaan masih perlu diusahakan untuk daya lebih besar dan penggunaan bahan bakar sesedikit mungkin. Kata kunci: Kelapa sawit, gasifier, listrik   Known as one of the countries with the largest oil palm plantations, there is a great opportunity for Indonesia to use the potential of renewable energy resources to produce electricity, especially for rural areas or remote areas. Palm oil waste can be used as a fuel source in the gasification process to produce syntetic gas (syngas) which will be used to produce electricity. The gasification process is strongly influenced by the gasifier reactor so that the gas produced has a high heating value and is capable of combustion. This study aims to design and make an updraft type gasifier reactor without a blower so that it does not require electrical energy in its operation, but uses engine suction power. This design is suitable for small scale power plants that are not connected to the electricity network (off-grid) in rural areas. Based on calculations, the availability of biomass energy is known to be 2113.8 MJ and the results of this gasifier design are known for the reactor cross-sectional area of ​​375 cm2 and for a height of 100 cm with a raw material of 2.47 kg / hour and produce an output power with a capacity of 5 kW. The research uses a gasoline generator with a maximum output of 2.5 kW. In the last experiment, the gasifier was operated for 3 hours using a 1 kW load consuming 6.9 kg of charcoal. trials still need to be tried for more power and as little fuel usage as possible. Keywords: Palm oil, gasifier, electricit

Applications of Marginal Abatement Cost Curve (MACC) for reducing greenhouse gas emissions: a review of methodologies

A wide range of Marginal Abatement Cost Curve (MACC) methods for reducing greenhouse gas (GHG) emissions has been introduced in various academic literature in the last decade to address various issues, to use different calculable logic, producing different results and implications. A detailed review has not been carried out on the application of MACC in terms of types of emissions, country/sector, and methodology used. This study is aimed at identifying, interpreting, and clarifying currently available literature on MACCs development from 2010-2020 by reviewing the previous applicability of three analytic dimensions including Greenhouse Gas (GHG) emission type, research objects, and modeling methodologies from top-down and bottom-up methods, providing researchers with information of past developments and future trends in this area. The result shows that CO2 is one of the most studied GHG emissions in calculating marginal abatement costs and some countries/regions have not received much attention from researchers in assessing emission reductions. Finally, the MACC bottom-up methodology focuses on the application of the engineering model method and the distance function method is a favorite in the application of the top-down method. Furthermore, this study also highlights possible research opportunities, which may lead to more successful and impactful results in future MACC studies

PANEN HUJAN SEBAGAI SUMBER AIR ALTERNATIF DI SEKOLAH AS SHOLIHIN, CIPONDOH, TANGERANG

Air merupakan salah satu kebutuhan utama masyarakat yang tidak tergantikan, dan sumber-sumber air yang sering dimanfaatkan berasal dari air tanah. Penggunaan air tanah yang berlebihan dapat mengakibatkan penurunan permukaan tanah serta penurunan kualitas dan jumlah air tanah yang tersimpan.Beberapa langkah yang telah dilakukan untuk membatasi penggunaan air tanah, salah satunya adalah penggunaan air hujan sebagai sumber daya air alternatif melalui sistem panen hujan. Sekolah As Sholihin, Cipondoh, Kota Tangerang sebagai salah satu sekolah yang masih mengandalkan air tanah sebagai sumber untuk memenuhi kebutuhan akan air bersih. Melalui kegiatan Pengabdian kepada Masyarakat, tim memberikan solusi pemecahan masalah tersebut dengan menerapkan sistem panen hujan sederhana. Air hujan yang tertampung di dalam tandon dapat digunakan sebagai air wudhu dan kebutuhan air di dalam toilet. Selain itu, dengan adanya penerapan sistem panen hujan di lingkungan sekolah dapat memberikan contoh kepada masyarakat di sekitar mengenai pemanfaatan air sebagai sumber daya air alternatif melalui penerapan sistem panen hujan sederhana