Rona Teknik Pertanian最新文献

{"title":"Simulasi Penentuan Kebutuhan Daya Pompa Pada Sistem Transpor Bahan Pangan Cair Dengan Menggunakan Parameter Reologi Susu Kental Manis","authors":"Ratna Ratna, Darwin Darwin, Siti Mechram","doi":"10.17969/RTP.V6I1.360","DOIUrl":"https://doi.org/10.17969/RTP.V6I1.360","url":null,"abstract":"ABSTRAK. Simulasi penentuan kebutuhan pompa energi pada sistem bahan makanan transfer cair dengan menggunakan parameter software hasil krim reologi kental manis. Software ini dapat digunakan untuk menentukan energi pompa yang dibutuhkan oleh sistem transfer krim kental manis sehingga tidak terjadinya produk lompat dan gelembung yang menghancurkan krim kental manis. Sehingga pada saat dipasarkan, produk tidak lagi menarik dan baik untuk dikonsumsi. Sebelum melakukan simulasi dengan program komputer, dibutuhkan data viskositas (kekentalan) parameter reologi krim kental manis. Hal ini diperlukan untuk mengetahui pengaruh parameter reologi untuk energi pompa yang diperlukan oleh sistem transfer krim kental manis. Dari simulasi diperoleh gambaran yang baik lebih untuk merancang suatu sistem transfer krim kental manis di salah satu pabrik pengolahan.A Simulation to Determine the Requirement of Pump Power on Transport System for Liquid Food Material using Rheology Parameter of Sweetened Condensed MilkABSTRACT. A simulation using a software to determine the requirement of pump power on transport system for liquid food material using rheology as parameter for sweetened condensed milk. The software was able to determine the pump energy required by a transfer system of sweetened condensed milk in order to prevent the occurrence of the product jump and the effervescence. The effervescence would destroy the cream of sweetened condensed milk, so at the time of marketing, the product was no longer in good condition to consume. Before conducting simulation using computer program, viscosity data of sweetened condensed milk was required to know the influence parameter of rheology on pump power required by a transport system of sweetened condensed milk. From the simulation, a more good description was obtained to design a transfer system of sweetened condensed milk at one particular factory.","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67485879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Penyimpangan Penggunaan Lahan Berdasarkan Rencana Tata Ruang Wilayah Kabupaten Aceh Barat","authors":"H. Basri, Syakur Syakur, A. Marta","doi":"10.17969/RTP.V6I1.911","DOIUrl":"https://doi.org/10.17969/RTP.V6I1.911","url":null,"abstract":"Abstrak. Penelitian ini bertujuan untuk: (1) mengevaluasi kesesuaian alokasi ruang RTRW Kabupaten Aceh Barat tahun 2012- 2031 dengan alokasi penetapan kawasan hutan Kabupaten Aceh Barat berdasarkan SK Menhutbun No. 170/Kpts- II/2000, dan (2) mengevaluasi penyimpangan penggunaan lahan eksisting Kabupaten Aceh Barat tahun 2012 dengan RTRW Kabupaten Aceh Barat tahun 2012-2031 dan (3) membahas secara umum penyebab dari penyimpangan penggunaan lahan dan dampak yang ditimbulkannya. Penelitian ini dilaksanakan dari bulan Maret 2012 hingga Februari 2013 di Kabupaten Aceh Barat dan di Laboratorium Penginderaan Jauh dan Kartografi Fakultas Pertanian Universitas Syiah Kuala. Penelitian ini menggunakan metode deskriptif dengan mengumpulkan berbagai data sekunder dan primer yang diperlukan dan analisis tumpang tindih peta (overlay) serta cek lapangan (ground check) penggunaan lahan terkini. Hasil penelitian menunjukkan terjadi penyimpangan alokasi ruang RTRW Kabupaten Aceh Barat tahun 2012-2031 terhadap kawasan hutan Kabupaten Aceh Barat yang ditetapkan dalam SK Menhutbun No. 170/Kpts- II/2000 seluas 6.663,45 ha (2,41%). Penggunaan lahan eksisting Kabupaten Aceh Barat tahun 2012 juga menunjukkan terjadi penyimpangan terhadap alokasi ruang RTRW Kabupaten Aceh Barat tahun 2012-2031 yaitu seluas 25.319,21 ha (9,16%). Secara umum faktor penyebab terjadinya penyimpangan penggunaan lahan adalah pemekaran kabupaten/kota, pengembangan infrastruktur wilayah, pengembangan usaha perkebunan dan pertambangan. Penyimpangan penggunaan lahan tersebut berdampak kepada semakin luasnya deforestasi, meningkatnya koefisien limpasan dan frekuensi banjir.Deviation of Land Use Based on Spatial Planning of West Aceh DistrictAbstract. This study aimed to: (1) evaluate the suitability of spatial allocation of space in West Aceh district from 2012 to 2031 with the allocation of forest establishment of West Aceh by Decree of Menhutbun No. 170/Kpts-II/2000, (2) evaluate the deviation of the existing land use of West Aceh district in 2012 with the Spatial West Aceh district of 2012-2031, and (3) discuss generally the cause of the deviation and the impact of land use. This study was conducted from March 2012 to February 2013 in the West Aceh district, and at the Laboratory of Remote Sensing and Cartography, Faculty of Agriculture, Kuala University. This research used descriptive method by collecting a variety of secondary and primary data necessary, analysis of overlap maps and ground check for evaluating the current land use. The results showed deviations spatial space allocation of West Aceh District of 2012-2031 to West Aceh forests set out by Decree of Menhutbun No.170/Kpts-II/2000 was 6,663.45 Ha (2.41%). Furthermore, the deviation of existing land use of West Aceh district in 2012 to the spatial allocation of the West Aceh district of 2012-2031 was 25,319.21 Ha (9.16%). In general, the causes of deviation were the division of districts, development of region infrastructure, plantation","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67485951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prediksi Erosi Kebun Kopi Rakyat di Kecamatan Permata, Kabupaten Bener Meriah, Provinsi Aceh","authors":"H. Basri, Syamaun A. Ali, Konadi Konadi","doi":"10.17969/RTP.V5I2.231","DOIUrl":"https://doi.org/10.17969/RTP.V5I2.231","url":null,"abstract":"Prediction of Erosion in the Coffee Plantation in Subdistrict of Permata, District of Bener Meriah, Province of AcehAbstract. This study aimed to determine the level of erosion that occurred on the slopes of plantation of coffee community in sub-district of Permata, district of Bener Meriah, Province of Aceh, conducted from January to August 2011. Coffee plantations of community were located in sub-district of Permata as samples, particularly in the village of Jungke which had 8 percent slope and the village of Seni Antara which had 30 percent slope. This study was conducted by field observation and laboratory analysis to predict the values of erosion using the method of USLE (universal soil loss equation). Further Erosion Hazard Level (TBE) was determined by considering the effective depth of soil. The results showed that the value of the actual erosion that occurred in the coffee plantation of community in the village of Seni Antara which had 30 percent slope at 87,711.47 tones ha-1 year-1 greater than the actual value of erosion in the village Jungke which only 8 percent slopes at 21.79 tones ha-1 year-1. Erosion Hazard Rate on slopes of 30 percent (village of Seni Antara) classified as very heavy, while TBE at 8 percent slope (Village of Jungke) as light. The main factors that affected the value of erosion were the value of LS (long and large slope) and the value of K (erodibility). To prevent erosion on coffee plantations advised people to be able to add shade trees, use of litter and planting cover crops. ","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67485910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of Renewable Energy Hybrid System for Grid Connected Application","authors":"M. Mustaqimah","doi":"10.17969/RTP.V5I2.237","DOIUrl":"https://doi.org/10.17969/RTP.V5I2.237","url":null,"abstract":"ABSTRACT. Hybrid energy systems are pollution free, takes low cost and less gestation period, user and social friendly. Such systems are important sources of energy for shops, schools, and clinics in village communities especially in remote areas. Hybrid systems can provide electricity at a comparatively economic price in many remote areas. This paper presents a method to jointly determine the sizing and operation control of hybrid energy systems. The model, PV wind hydro and biomass hybrid system connects to grid. The system configuration of the hybrid is derived based on a theoretical domestic load at a typical location and local solar radiation, wind and water flow rate data and biomass availability. The hybrid energy system is proposed for 10 of teacher’s houses of Industrial Training Institute, Mersing. It is predicted 10 kW load consumption per house. The hybrid energy system consists of wind, solar, biomass, hydro, and grid power. Approximately energy consumption is 860 kWh/day with a 105 kW peak demand load. The proposed hybrid renewable consists of solar photovoltaic (PV) panels, wind turbine, hydro turbine and biomass. Battery and inverter are included as part of back-up and storage system. It provides the economic sensitivity of hybridization and the economic and environmental benefits of using a blend of technologies. It also presents the trade off that is involved in optimizing a hybrid energy system to harness and utilize the available renewable energy resources efficiently.","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67485724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Efisiensi Pada Sistem Pengeringan Bunga Rosella (Hibiscus sabdariffa L) Menggunakan Alat Pengering Tipe Lemari","authors":"Refli Safrizal, Hendri Syah, Rita Khathir","doi":"10.17969/RTP.V5I2.234","DOIUrl":"https://doi.org/10.17969/RTP.V5I2.234","url":null,"abstract":"Efficiency Analysis in Drying System for Rosella (Hibiscus sabdariffa L) Using Cabinet Type DryerABSTRACT. Drying is one of the most important process in producing a good quality of rosella tea. The study was aimed to evaluate the drying efficiency of rosella tea by using a cabinet dryer. The source of energy for the dryer was from the burning of charcoal. The charcoal was prepared from the coconut shell since it was abundant biomass product. About 7.5 kg of fresh rosella flower was dried for 17 hours. The total of charcoal consumed was 17 kg. The moisture content of rosella flower was reduced from 90 to 12 %. The analysis showed that the total of energy produced from the burning of 17 kg charcoal was 309.4 MJ, whilst the total energy needed to dry the flower was 15,72 MJ. Therefore, the drying efficiency was still low about 4.58%. Further study is recommended to improve the drying efficiency for example by the use of deeper depth of dried products between 2 and 6 cm as well as by improving the system of hot air circulation. ","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67486063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Karakteristik Lokasi dan Pola Resapan: Data, Analisis dan Respon","authors":"Ichwana Ichwana, S. Sumono, Delvian Delvian","doi":"10.17969/RTP.V5I2.232","DOIUrl":"https://doi.org/10.17969/RTP.V5I2.232","url":null,"abstract":"Characteristics of the Location and Recharge Pattern: Data, Analysis and ResponseABSTRACT. Infiltration as a movement of water could determine a large amount of water which could move over the soil surface to the river, and the water that went into the ground. The information of water infiltration in watershed was required to make decision about sustainable water resources. On the other hand, the infiltration was dynamic, that was why it was interesting to be analyzed. The purpose of this study was to determine differences in volume that occurred in the watershed catchment of Krueng Peusangan. Having viewed the differences and similarities location against variabel temperature, evapotranspiration, moisture, discharge, rainfall for the fivepoint, watershed locations of Krueng Peusangan using Principal Component Analysis (PCA). Based on PCA, the location was selected to analyze the volume of leach discharge measured during 2008-2011 in Wih Nareh and Kr. Teumbo. Absorption volume indicated that occurred instable infiltration at Kr. Teumbo. It needed guidelines for land use arrangement and forest function, especially in the recharge area. So, it could maintain the balance of hydrological cycle, groundwater quantity and quality properly.  ","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67485935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Standardisasi Waktu Kerja Pada Unit Pengolahan Kakao, Koperasi Rimbun, Pidie Jaya","authors":"J. Juanda, Zalniati Fonna Rozali, H. Syahputra","doi":"10.17969/RTP.V5I2.233","DOIUrl":"https://doi.org/10.17969/RTP.V5I2.233","url":null,"abstract":"Standardization of Working Time at Cocoa Processing Unit, Rimbun Cooperative, Pidie JayaABSTRACT. Rimbun Cooperative is a business unit operating a chocolate factory producing several chocolate products such as cocoa fat, cocoa powder, 3 in 1 instant drinks (sachets), and chocolate bars. This research aims to measure standard times of operators in all working stations of the chocolate factory. These standards comprised the standards in roasting, peeling, pasting, pressing, powdering, powder sieving, powder mixing, dough mixing, refining, and chonching working stations. The data were directly collected using Time Study method with Stop Watch. The samples were randomly selected with five (5) repetitions; and the standard times were measured using Westinghouse Method to quantify performance and allowance factors. The result shows that standard times of operators in each working station are as follows: roasting (36 minutes), peeling (193 minutes), pasting (276 minutes), pressing (78 minutes), powdering (17 minutes), powder sieving (14 minutes), powder mixing (36 minutes), dough mixing (17 minutes), refining (30 minutes), and chonching (30 minutes). In peeling, pasting, powdering, powder sieving working stations, standard times of operators cannot be separated with working times of machines because the operators are required to run the machines (sequence). In general, standard times of operators, after calculation, are larger than direct records because during the working times, operators would not or could not use allowance factors for personal uses, such as for going to bathroom, drinking, and socializing with their colleagues as means to reduce stress or boredom.","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67486019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perbandingan Nilai Intersepsi Pohon Mahoni (Swietania mahagoni) dan Pohon Pinus (Casuarina cunninghamia)","authors":"Siti Mechram, Susi Chairani, A. Zaki","doi":"10.17969/RTP.V5I2.235","DOIUrl":"https://doi.org/10.17969/RTP.V5I2.235","url":null,"abstract":"Comparation of Interception Loss on Mahoni (Swietania mahagoni) and Pinus (Casuarina cunninghamia)ABSTRACT. Interception of rain is the retention of rainwater on surface vegetation before it evaporates back into the atmosphere. Research relating to the interception is still lacking, so it is necessary to study the interception on some types of plants. Although the interception had a little value, and sometimes overlooked, but in some plants have a considerable effect. The purpose of this study was to determine the magnitude of interception in Mahogany and Pine trees, as well as to determine the relationship between rainfall and interception. In this study, samples taken at the Mahogany and Pine trees by the number of 3 samples of each tree. There were two approaches to measure the amount of interception, the first approach was the Volume Balance Approach and the second approach was the Energy Balance Approach. In this study, the volume balance approach, with measurements of rainfall, throughfall, stemflow and interception for ten days of rainfall. The average amount of interception Mahogany obtained 15.5 mm (7.31%) of the total amount of rainfall and the correlation coefficient (r) was at 0.554. While the average number of interception Pinus acquired 87.23 mm (41.15%) of the total amount of rainfall and the correlation coefficient (r) was at 0.505. The size of the interception was influenced by wind speed, density and canopy shape. The research obtained that the interception for pine trees was higher than Mahogany trees. The results also showed that the higher percentage of rainfall, the smaller interception. This was due to the canopy conditions and climatic factors.  ","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67485619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Kecepatan Maju Traktor dan Putaran Pisau Pemotong Pada Pengeprasan Tebu Ratoon","authors":"Syafriandi Syafriandi","doi":"10.17969/RTP.V5I2.236","DOIUrl":"https://doi.org/10.17969/RTP.V5I2.236","url":null,"abstract":"Analysis on Forward Speed of Tractor and The Spin of Cutter Knife on Ratoon Sugarcane Stubble ShaverABSTRACT. Cultivating ratoon sugarcane by using a stubble shaver conducted on sugarcane cultivation could save the cost of production. A good cultivation could be done by cutting the rest of the plant to the ground. The tool that commonly used was a hoe and a stubble shaver. Revitalization program that included the production of mechanical tools, in addition to providing lucrative benefits in the production business, on the other hand also had weaknesses in some aspects. To improve the quality and efficiency of the tool functions required the development and improvement tools. For example, the development and improvement efforts on tools sugarcane stubble shaver. Therefore, it still needed to conduct research on sugarcane stubble shaver machines to improve productivity especially in the cultivation of ratoon sugarcane stubble by improving the quality of results that would not break the ratoon sugarcane. The purpose of this study was to analyze the forward speed of the tractor and the blade rotation speed of ratoon sugarcane.","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67485631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rancang Bangun dan Uji Performansi Alat Penyiang Gulma pada Tanaman Kacang Tanah","authors":"M. Dhafir, Andriani Lubis, Cut Zakiyya","doi":"10.17969/rtp.v4i1.32060","DOIUrl":"https://doi.org/10.17969/rtp.v4i1.32060","url":null,"abstract":"Weeds were plants whose presence was undesirable because it lowered the yield of agricultural land that could be achieved by the production plant. Weeding the groundnut crop had been done conventionally, weeding method had many drawbacks. The purpose of this research was to design, fabricate and per-formance test of the weed clean device on peanut plants. The results showed that the dimensions of the weed clean device was 1332 mm long, connecting rods were made of pipe with a diameter of I inch, wide handlebars 732 mm diameter, wheel steering handlebars handheld was 48 mm, wheelbase was 150 mm steel, blade was made of steel plate 2 mm with a length of 250 mm and a width of 20 mm. The strength and durability of the weed clean device were met because the stress permis (131 MPa) was greater than the stress occurred (16.9 Mpa). From the obtained performance test of weed clean device capacity was 16 hours /ha, better than weeding manually, 90 hours /ha.","PeriodicalId":55725,"journal":{"name":"Rona Teknik Pertanian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67485897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}