The sterilization chamber is designed to sterilize the body using a filler formulation that is not harmful to the skin surface. Formulation, namely the composition of filler fluids (type, dose and amount) using substances that are safe for the body accordingly, certainly provides benefits. The use of the sterilization booth uses the correct and safe filling fluid. The sterilization chamber uses a mist nozzle sprayer (with the appropriate discharge) to spray the filling liquid so that the user is safe. This sterilization booth is named "White Box". This "White Box" research aims to design (functional and structural) and test (function test and performance test) on a system and mechanism for condensing the condensation of a humidifier that can fill the sterilization room optimally. The design method of the "White Box" sterilization booth uses a qualitative method with the following phases: (1) The preparation stage, namely the functional design and the structural design of the "White Box"; (2) The implementation stage is analyzing the use of tools and materials and making sterilization booths; (3) Post-implementation stage, namely testing the sterilization chamber, including the function test and performance test of the sterilization chamber. The design activity of the "White Box" sterilization booth was carried out by testing various variations of the prototype, including variations in the dimensions of the distribution pipe, the shape of the distribution pipe, and variations of the piping system. The validation process includes: (1) The diameter of the pipe against humidifier dew bursts; (2) The shape of the piping against humidifier dew spray; and (3) the length of the pipe passage to the humidifier dew spray. ABSTRAKBilik sterilisasi didesain untuk mensterilisasi tubuh dengan menggunakan formulasi zat pengisi yang tidak berbahaya bagi permukaan kulit. Formulasi yaitu komposisi cairan pengisi (jenis, takaran dan jumlah) menggunakan zat yang aman bagi tubuh yang sesuai, tentu memberi manfaat. Penggunaan bilik sterilisasi menggunakan cairan pengisi yang benar dan aman. Bilik sterilisasi menggunakan mist nozzle sprayer (yang debitnya sesuai) untuk menyemprotkan cairan pengisinya sehingga pengguna aman. Bilik sterilisasi ini diberi nama "White Box". Penelitian "White Box"ini bertujuan merancang (fungsional dan struktural) dan menguji coba (uji fungsi dan uji kinerja) pada sebuah sistem dan mekanisme penyaluran pengembunan dari alat humidifier yang mampu memenuhi ruang bilik sterilisasi secara optimal. Metode rancang bangun bilik sterilisasi "White Box" menggunakan metode kualitatif dengan tahap kegiatan meliputi: (1) Tahap persiapan yaitu rancangan fungsional dan rancangan struktural"White Box"; (2) Tahap pelaksanaan yaitu analisa penggunaan alat dan bahan dan Pembuatan bilik sterilisasi; (3) Tahap Pasca Pelaksanaan yaitu pengujian bilik sterilisasi antara lain uji fungsi dan uji kinerja bilik sterilisasi. Muatan kegiatan rancang bangun bilik sterilisasi "White Box" dilakukan dengan cara menguji coba berbagai variasi prototipe, meliputi variasi dimensi pipa penyaluran, bentuk pipa penyalur, variasi sistem perpipaan. Proses validasi yang dilakukan meliputi: (1) Diamater pipa terhadap semburan embun humidifier; (2) Bentuk pipa penyalur terhadap semburan embun humidifier; dan (3) Panjang lintasan pipa terhadap semburan embun humidifier.

Archimedes Spiral Turbine has characteristic of blade which can catch water flow well. It uses two force concepts, i.e. drag and lift forces. Flow direction change greatly influences Archimedes Spiral turbine performance. Therefore, it needs flow direction system in form of truncated cone and tail vane. Archimedes Spiral turbine with flow direction system generated Cp value of 0,19–0,22 and TSR value between 1,76–1,85. Torque value obtained is between 0,013–0,017 Nm on RPM value range of 28,64–33,60. Limitation between truncated cone with Archimedes Spiral turbine blade causes vortex flow at the back of blade to decrease. Truncated cone addition can enlarge flow catchment force. When flow speed captured by Archimedes Spiral turbine increase, resulting in a compressive force on enlarged. The addition of tail vane capable of passing the flow vortex is elongated to downstream. The flow of vortex which is passed on inhibits the rotation of the turbine blades and result in a compressive force on the turbine is enlarged. Compressive force on blade which grows bigger causes torque value to increase as well. The increasing torque value causes drag force concept used in Archimedes Spiral turbine with flow direction system higher than lift force concept.

The people of Pahandut Seberang Village have long lived on the Kahayan Riverside area. The characteristics of the settlements in Pahandut Seberang Village are floating houses and pillar houses, most of which are located above the water. The river is used for water transportation, fishing, fulfilling daily needs such as bathing, washing, and as a source of drinking water. The Kahayan River problem is also a place for disposal of waste from human activities such as household waste. Human waste is dumped directly into water bodies because the toilets of the pillar houses on the riverside do not have septic tank facilities. To solve the priority problems of Partners, a solution to assist the manufacture and installation of Repeated Processing Septic tank (RPS) Technology for pillar houses in Pahandut Seberang Village is needed. The goal is to provide sanitation problem solving for settlement in Pahandut Seberang Village through training on the construction and installation of RPS. The methods used qualitatively include: (a) Finding concrete problems and priorities: the existence of a toilet on pillar house without a septic tank; (b) Offering ideas, making RPS to settlement who are located on pillar houses on the riverside; (c) Making activity plans and work procedures, and d ) Inviting Partner participation by providing training (creating and installing RPS). A special target has been achieved by giving a pilot RPS to settlement of Pahandut Seberang Village, by facilitating a house on stilts with the RPS. Outputs in the form of RPS goods and products and their specifications.

Darrieus turbine use blades with a hydrofoil shape, so the rotational ability is influenced by lift force. This caused the initial rotation capability to be very low when compared to the drag turbine type. The flow velocity distribution in the vertical direction indicates a small cross-sectional speed of flow approaching the base of the flow channel, then rising towards the surface. Darrieus Spinning Top turbine is the result of innovation and design based on the concept of flow velocity distribution. Darrieus Spinning Top turbine’s blade shapes are circular-arc and straight-line, adjusting flow velocity distribution of 0.2H, 0.6H and 0.8H from the top of the turbine. In this study, a performance comparison was conducted between Darrieus turbine and Spinning Top Darrieus. Darrieus turbines produce RPM and torque values of 54.59 – 67.90 and 0.014 – 0.029 Nm, respectively. Darrieus Spinning Top turbines produce RPM values and torque of 69.24 – 82.02 and 0.012 – 0.020 Nm respectively. RPM improvements in Darrieus Spinning Top turbine design increase the influence of lift force (increased λ value). This results in a high lap rate, but requires a high self starting to perform the turbine rotation cycle.

The research location is located in the village of Pahandut Seberang as a new village developed by Pahandut Village. Pahandut Seberang Village has vacant land in the form of forests and swamps that have not yet been developed as one of the potential development areas. Identification of a new green open space potential area is using figure ground analysis and history of place analysis. The purpose of this study is to identify the potential of the green open space and the development of urban forest tourism. The potential location is expected Pahandut Seberang Village, District of Pahandut, City of Palangka Raya. This location is closed to the Kahayan riverside area as a pilot project to environmental management and sustainability area in the future. The method uses qualitative methods through observation, surveys and interviews. Physical analysis is to identify green open space area in Pahandut Seberang Village using field observations such as: (1) land use development, (2) green open space area, and (3) built up area. Non-physical analysis is using of indepth interview from Pahandut Seberang community as a part of real participation to maintain the green open space and forest area in the future.