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JOURNAL OF APPLIED SCIENCE (JAPPS)
Published by Institut Teknologi Sains Bandung
ISSN : 26567288     EISSN : 26567334     DOI : https://doi.org/10.36870/japps
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Journal of Applied Science (JAPPS) is a collection of scientific articles relating to the field of applied science which includes engineering and design. This journal discusses the scientific development of engineering in the fields of civil engineering, mining engineering, metallurgical and material engineering, petroleum engineering, and engineering in other fields. In addition, it also contains scientific articles in the field of planning such as urban and regional planning and Architecture which is balanced with design in the fields of Product and Interior Design. In the process, this journal involves the reviewer with a minimum doctoral qualification from domestic and foreign universities affilitations. In addition, it also involves observers from industry and the government with appropriate qualifications in the field of review. JAPPS will be published twice a year, in February and August with different topics for each volume. In its future development, JAPPS will be published in two versions: Indonesian and English.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 6 Documents
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Search results for , issue "Vol 3, No 2 (2021): Journal of Applied Science (JAPPS)" : 6 Documents clear
Challenges of Applying On-Site Photovoltaic System At Environmetally Friendly Buildings In Indonesia Esterlita Hisamatsu
JOURNAL OF APPLIED SCIENCE (JAPPS) Vol 3, No 2 (2021): Journal of Applied Science (JAPPS)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36870/japps.v3i2.240

Abstract

Seventh goal of the "Sustainable Development Goals (SDGs)" is clean and affordable energy to increase the proportion of renewable energy. However, power plants in Indonesia are still dominated by non renewable energy. Therefore, it is necessary to have renewable energy technologies such as photovoltaic that can be installed on-site in buildings as an alternative clean electricity supplier. Even though Indonesia has abundant sun energy, domestic photovoltaic development is relatively slow. This research aims to identify obstacles to the application of photovoltaic as an on-site electrical system in Indonesia by spreading questionnaire to experts and users. Each question in the questionnaire is related to the understanding of the three pillars of sustainability (environment, social, and economic) related to on-site photovoltaic. The results of the data will be tested using the one sample t-test method to identify the environmental barriers, social barriers, and economic barriers. The results of this study indicate that the constraints of photovoltaic as an on-site power plant are generally dominated by social and economic barriers. Meanwhile, environmental barriers are recessive.
Redesign Woodeco Stool Jhon Viter Marpaung; Muhammad Fauzi; Desy Prastyani
JOURNAL OF APPLIED SCIENCE (JAPPS) Vol 3, No 2 (2021): Journal of Applied Science (JAPPS)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36870/japps.v3i2.258

Abstract

The concept applied to the design of stool furniture this time carries the theme that will be used, namely Scandinavian. A product that will be designed through trend analysis, through the uniqueness of the design owned. The uniqueness is presented through a combination of foreign and traditional cultures, being a style inspiration for designers and becoming the first choice product for the community in its needs. Qualitative methods with an event approach that is carried out make a direct source for designers to conduct a renewable data research so as to gain knowledge about the style and concept of a broader design to be applied to a design design this time. Market segmentation or User is intended is an urban society that has a standardization of modern living, as well as the characteristics of users who have uniqueness in a work such as creative workers oriented in the field of art or creative. This product is intended for families who have a modern lifestyle, with the implementation of modern product styles making this design has a concept of styling organic design that is combined with the application of batak toba motifs as the preservation of cultural products to preserve cultural knowledge to make their own scandinavian-style products
Perancangan Alat Total Dissolved Solid (TDS) Monitoring pada Air Boiler berbasis Mikrokontroler di Pabrik Kelapa Sawit Naga Sakti Lia Laila
JOURNAL OF APPLIED SCIENCE (JAPPS) Vol 3, No 2 (2021): Journal of Applied Science (JAPPS)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36870/japps.v3i2.259

Abstract

Steam is a utility that have an essential function in palm oil production. Steam is mainly used in steam turbine to move the generator to produce electricity. Steam also has a lot of other functions such as heating cold oil in storage tank, heating coil in kernel drying, etc. Steam is produced in a machine called boiler. Boiler require a treated feed water as an input. To maintain boiler performance and lifetime, one need to control the TDS (Total Dissolved Solid) in boiler feed water in a range of 2100 2500 ppm. TDS is a parameter that shows the solid concentration which dissolved in the water. TDS has to be checked every hour to maintain its concentration controlled. In a practical use, TDS monitoring is a simple process but take a lot of time to proceed. Water from the sampling pipe collected in a bottle then cooled until room temperature. TDS from cooled boiler water then measured with a device called TDS meter. To control TDS value in the standard condition, the measurement time need to be reduced. Therefore, a faster method to measure TDS in boiler water is needed. An easier and faster measurement using a system which consisted of sensor, microcontroller, LCD display is one of the idea to reduce unneccessary measuring time. The development and experiment of this TDS monitoring device is situated in Nagasakti Palm Oil Mill, Riau Province, Indonesia.
Konsep ‘Container Shelter’ Untuk Mendukung Program ‘Re Development’ Kampung Kumuh Di Pusat Kota Syahyudes Rina
JOURNAL OF APPLIED SCIENCE (JAPPS) Vol 3, No 2 (2021): Journal of Applied Science (JAPPS)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36870/japps.v3i2.245

Abstract

A local government policy of Bandung City related to the re-building of slums area or kampung kumuh concept is the vertical row houses development. In practice, people are temporarily moved to a relocation site or to find houses for rent with a specific budget. Both of these options were complained about and rejected by people with various considerations that became problems in the row houses development. Based on this, it is concluded that there is a need for shelter as one of the temporary infrastructures provided for the initial step in the Re-Development program related to the people's sustainability lives. Related to the effectiveness of shelter development, containers can be used as houses materials. This trend is triggered by environmental problems, where containers that have been used piled up and do not return to their place due to shipping empty containers more expensive. Containers are modified to make housing units, with improved green housing value through container reused. The method of data and information were collected: a) field observations and interviews the settlement characteristics (physical and environmental, socio-economic, and residence); b) institutional surveys, c) secondary surveys covering theoretical studies and regulations. The method of analysis uses: a) qualitative method, by describing the data and information obtained, b) analyzing by literature review, comparing to policy and concept of ReDevelopment, container houses, and healthy house standards; c) functional design methods include analysis of users, activities, and space requirements; d) arrange the concept of a container shelter, then reflected into the function of macro space (site) and micro space (building). The output of this study is the housing container to refers the settlement characteristics, environmental requirements, modular methods, materials and container construction, unloading function of the house, according to needs people low income, and that the needs to maintains the preservation of the residential in the transition period.
Kajian Hidro-Oseanografi Untuk Rehabilitasi Suaka Margasatwa Muara Angke – Jakarta Utara Asep Irwan
JOURNAL OF APPLIED SCIENCE (JAPPS) Vol 3, No 2 (2021): Journal of Applied Science (JAPPS)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36870/japps.v3i2.260

Abstract

Muara Angke Wildlife Reserve (MAWR) is the smallest natural reserve area in Indonesia with a wetland ecosystem type, dominated by open swamp and mangroves, and greatly influenced by freshwater from the Angke River. Although small, this region plays an important role in protecting biodiversity, especially for mangrove ecosystems in Jakarta. However, this area has suffered severe degradation because of river pollution and decreasing salinity so that rehabilitation efforts carried out to maintain the presence of mangrove ecosystems. We asses the hydro oceanographic aspects, i.e. tidal conditions, sedimentation and bathymetry by conducting field survey and modeling. Based on the results, there is 0.35 m increase in the water level compare to previous period. The value of Formzhal 2.47 is obtained which indicates the mixed tide prevailing diurnal type, mainly because of the influence of the river, although sometimes their mixed tides with very different heights and periods. The tidal mounts in Muara Angke based on the Admiralty method are 0.94 meters. Then, from the results of the sediment test, it was found the type of mud sediment with a value of TSS between 23 mg/l - 74 mg/l. The result of this study is that the sustainability of the mangrove ecosystem in Muara Angke Wildlife Reserve depends on these three aspects. There needs to be mitigation efforts to reduce sedimentation and overcome freshwater immersion from rivers so that mangrove rehabilitation in this region can be successful.
Kriteria Prioritas Pemilihan Teknologi Pengolahan Limbah Cair Industri Tempe Cahyaning Kilang Permatasari
JOURNAL OF APPLIED SCIENCE (JAPPS) Vol 3, No 2 (2021): Journal of Applied Science (JAPPS)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36870/japps.v3i2.173

Abstract

The location of tempe processing adjacent to the settlement causes problems. The resulting liquid waste makes people uncomfortable. This is presumably because the liquid waste has not been managed properly, because it is only dumped into the drainage channel. The majority of tempe industrial entrepreneurs are home industries who are not aware of creating a healthy environment by paying attention to liquid waste processing. There are many studies on technology for the tempe industrial wastewater problem, but each technology has advantages and disadvantages. It is necessary to have a system to choose the technology that suits the waste conditions. This research takes a case study in Karanganyar Regency. The Analytical Hierarchy Process (AHP) method is a method of determining priority scale that can accommodate all aspects. Furthermore, a sequence of criteria can be arranged as needed. The results of the analysis with AHP are: technology criteria 31.09%; environment 28.65%; economic 21.74% and social 18.53%. Environmental sub-criteria showed the results of the removal of ammonia 40.56%; treated water quality 30.74%; the amount of mud is 18.91% and the emission level is 9.80%. Technology sub-criteria are ease of operation 28.67%; land area requirement 28.56%; service life of 28.05% and the potential of technology in the midification of 14.72%. Economic sub-criteria with the results of operating costs 34.21%; installation cost 33.28%; maintenance costs 23.78% and HR costs 8.73%. Social sub-criteria with the results of the need for employment of 49.10%; readiness of human resources 19.33%; implementation of construction 16.74% and aesthetics 14.82%. The results of the AHP can be used as input for tempe entrepreneurs, the government and the community to improve the environmental quality of the tempe industrial wastewater. It is hoped that entrepreneurs will find it easier to determine the appropriate technology to treat the tempe industrial liquid waste.

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