6 research outputs found
Analisis Pengaruh Konsentrasi Pewarna dari Daun Pepaya terhadap Performansi Dye Sensitized Solar Cell (DSSC)
No full textABSTRAK Rizali, Dede. 2017. Analisis Pengaruh Konsentrasi Pewarna dari Daun Pepaya terhadap Performansi Dye Sensitized Solar Cell (DSSC). Skripsi. Jurusan Teknik Mesin, Fakultas Teknik, Universitas Negeri Malang. Pembimbing: (I) Dr. Heru Suryanto, S.T., M.T., (II) Dr. Sukarni, S.T., M.T. Kata Kunci: DSSC, daun pepaya, konsentrasi klorofil, gugus fungsi, Fill Factor, efisiensi. Dye Sensitized Solar Cell (DSSC) merupakan sel surya generasi ketiga yang memiliki struktur sandwich terdiri dari material organik dye (zat warna) dan beberapa komponen lain yaitu semikonduktor titanium dioxida (TiO2), elektrolit, dan substrat (countere electrode dan elektroda kerja). Dye yang digunakan adalah klorofil tanaman hijau, tanaman sumber klorofil yang banyak dibudidayakan diantaranya pepaya. Penelitian ini bertujuan mengetahui pengaruh konsentrasi pewarna klorofil daun pepaya terhadap performansi DSSC yang meliputi daya output (Pout), Fill Factor (FF), dan efisiensi (ɳ). Metode yang digunakan adalah penelitian eksperimental eksploratif dengan variabel bebas yaitu pencahayaan langsung dan pencahayaan tidak langsung. Variabel terikat yaitu daya output (Pout), Fill Factor (FF), dan efisiensi (ɳ) DSSC. Prosedur yang digunakan meliputi preparasi substrat, pembuatan pasta TiO2, preparasi larutan dye, preparasi elektrolit, preparasi countere electrode, dan perakitan DSSC. Pengujian yang dilakukan meliputi kandungan kadar klorofil menggunakan metode spektrofotometri, gugus fungsi klorofil menggunakan FTIR (Fourier Transform Infrared Spectroscopy), dan pengujian performansi DSSC dengan menggunakan lampu halogen 1.000 W/cm2 pada kondisi pencahayaan langsung dan pencahayaan tidak langsung. Hasil riset menunjukkan bahwa ekstraksi menghasilkan kandungan kadar klorofil a terbanyak terdapat pada konsentrasi 100% sebesar 3,1294 mg/m3. Gugus fungsi klorofil a meliputi –OH senyawa fenol, C-H senyawa alkana, C=O senyawa karboksilat, C=C senyawa aromatik, dan C-O senyawa asam karboksilat. Performansi terbaik diperoleh DSSC 4 dengan konsentrasi 100% kandungan kadar klorofil 3,1294 mg/m3 untuk DSSC pencahayaan secara langsung mendapatkan Pout 0,9557 mW, FF 0,07282, dan efisiensi 1,499137%. Sedangkan untuk DSSC pencahayaan secara tidak langsung mendapatkan Pout 0,00455 mW, FF 0,01535, dan efisiensi 0,049863%
The Effect of Chlorophyll Concentration from Papaya Leaves on the Performance of Dye Sensitized Solar Cell
Get PDFDye-Sensitized Solar Cell (DSSC) is the third generation solar cell that has sandwich structure consisted of organic dye material and other components such as titanium dioxide (TiO2) semiconductor, electrolyte, and substrates (counter electrode and working electrode). The dye in the device was made from green plant chlorophyll such as papaya. This research aimed to find the influence of dye concentration from papaya leaves chlorophyll on the performance of DSCC. The discussion covered the output power (Pout), Fill Factor (FF), and efficiency (ɳ). The method in this research was explorative experimental with independent variables such as direct and indirect sunlight. The dependent variables were output power (Pout), Fill Factor (FF), and efficiency (ɳ) from the DSSC. The procedures in this research consisted of substrates preparation, TiO2 paste production, dye solution preparation, electrolyte preparation, counter electrode preparation, and DSSC assembly. The tests on chlorophyll concentration were conducted using spectrophotometry method while the DSSC performance test used 1,000 W/cm2 halogen lamp. The results showed that 100% chlorophyll concentration resulted in 3.1295 mg/m3 chlorophyll content type a. The best DSSC performance was obtained by the DSSC sample that had 100% chlorophyll concentration and 1.1294 mg/m3 chlorophyll content. The direct light of DSSC achieved Pout of 0.9557 mW, FF of 0.07282, and efficiency of 1.499137%. The DSSC with indirect light obtained Pout of 0.00455 mW, FF of 0.01535, and efficiency of 0.049863%
TA : Pembuatan Film Bergenre Drama Berunsur Komedi Farce dengan Plot Linear Circular Yang Berjudul "Agus"
Get PDFThe film is a live picture, also often called a movie. Film, collectively, often called cinema. Cinema itself is derived from the word cinematic or motion. So the sense of motion is painting with light. The author makes a comedy movie using Circular Linear plot as the plot. The method used was the story begins from conception, data collection techniques of filming and editing videos.
Before authors begin filming this, the authors conducted several research methods, such as literature, namely by looking for books related to the movie-making process. Moreover, the authors also conducted an analysis of some of the films made in reference to the character creation as well as analyzing the properties commonly used in a comedy movie.
Film "AGUS" tells about the life of a young person who wanted to try his fortune village in the city. Are then faced with a dilemma, in which he must decide wisely over what happened.
The process of making this film started pre-production process that begins with the design work of ideas and concepts. Writers develop it into a movie by using the techniques of filmmaking in general.
This film uses a video editing software on finalizing, it will also facilitate the task of the writer in perfecting. Finally, the hope of the author of the final report will be the best, so it can be a role model for others, both technical and moral message contained in the film, and through this work, the author is able to provide different entertainment that could shift the interest of the film market film eroticism to quality films
TA : Pembuatan Film Bergenre Drama Berunsur Komedi Farce dengan Plot Linear Circular Yang Berjudul "Agus"
Get PDFThe film is a live picture, also often called a movie. Film, collectively, often called cinema. Cinema itself is derived from the word cinematic or motion. So the sense of motion is painting with light. The author makes a comedy movie using Circular Linear plot as the plot. The method used was the story begins from conception, data collection techniques of filming and editing videos.
Before authors begin filming this, the authors conducted several research methods, such as literature, namely by looking for books related to the movie-making process. Moreover, the authors also conducted an analysis of some of the films made in reference to the character creation as well as analyzing the properties commonly used in a comedy movie.
Film "AGUS" tells about the life of a young person who wanted to try his fortune village in the city. Are then faced with a dilemma, in which he must decide wisely over what happened.
The process of making this film started pre-production process that begins with the design work of ideas and concepts. Writers develop it into a movie by using the techniques of filmmaking in general.
This film uses a video editing software on finalizing, it will also facilitate the task of the writer in perfecting. Finally, the hope of the author of the final report will be the best, so it can be a role model for others, both technical and moral message contained in the film, and through this work, the author is able to provide different entertainment that could shift the interest of the film market film eroticism to quality films
Keanekaragaman dan struktur komunitas semut pada perkebunan lada di Lampung
Get PDFThe occurrence of ants in agricultural habitat is related to the availability of food resources as well as environmental condition for its nesting site. As predator, ants play an important role on controlling pest population in agricultural habitat. The objective of this research was to study the diversity of ants in pepper plantation. The research outcome can be used as basic information for cultivation management of pepper. Ecological observation was conducted in four regencies in Lampung Province with two selected plots on each regency. On each plot, ants were sampled using pitfall traps. In total, 28 ant species were recorded from pepper field in four regencies. Two species i.e. Anoplolepis gracilipes and Solenopsis geminataare well-known as tramp and invasive species. There is significantly different of ant species composition among regencies. The occurrence of ants in pepper plantationis probably affected by habitat condition surrounding pepper plantation and precipitation
Environmental Factors Affecting Productivity Of Two Indonesian Varieties Of Black Pepper (Piper Nigrum L.)
Get PDFBlack pepper plantation area in Lampung province (the biggest producer area within Indonesia) has decreased from time to time, which might be related to unfavourable environmental condition. The aim of this study was to assess which environmental factors are positively or negatively correlated with productivity in particular yield of two local varieties of black pepper plant (Natar 1 and Natar 2) in Lampung province. Two observational studies were carried out in the present study i.e. phenological development and productivity of black pepper productivity in related to various environmental factors. Our results showed that productivity of two varieties were significantly affected rainfall, light intensity and micro humidity. Dry matter yield was positively correlated with rainfall, both in Natar 1 and Natar 2. It was concluded that among environmental factors affecting productivity of black pepper, rainfall intensity was the most influencing factor with a positive relationship with the productivity
