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Revianti Coenraad
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Journal : BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan

 1 
SEDIMENT TRANSPORT STUDIES ON HOMOGENEOUS SOIL BASE MATERIAL Revianti Coenraad
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 1 No. 1 (2013): Journal Balanga Edisi Januari-Juni 2013
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

Sediment transport is the movement of sediment granular material/non cohesive by water flow. Sediment is carried by the flow of water constantly, which can be distinguished as floating sediment (suspended load) and bed load sediment. Sediment transport from upstream to down stream will affect some areas that experienced scour and deposition (sedimentation). This will cause a variety of problem shence it is needed to know the amount of sediment transport since it always moves with the flow.To minimize its negative effects, it is necessary to study the amount of sediment transport with homogeneous base material composed of sand and gravel. This study aimed to determine the effect of water discharge(Q) and the number of stream sediment transported (T) and to knowthe basic condition of the channel due to sediment transport after discharge flowed. The experiment was conducted at the glass channel of Laboratory of Hydrology/Hydraulics, Faculty of Engineering, University of Palangka Raya with dimensions of 400x10x25cm, while the selection of grain grading and inspection of the channel density of the base material such as sand and gravel carried out at the Laboratory of Soil Mechanics, Faculty of Engineering, University of Palangka Raya.The amount of discharge flowed varies with time and the experiment was performed 5 times for each channel base material. The results of the sediment transport studies on materials such as sand and gravel base shows that the greater the flow, the greater also the amount of sediment transported while the smaller debit amounts of sediment transported less. Sand diameter 0.43mm to0.58 mm transported more than the transported gravel with a diameter of2.40mm to 4.75mm, mostly gravel grain rolling and sliding just moves along the baseline. Basic conditions after a transport channel has changed from its original condition with the average basic channels 2.00cm thickness would appear to be a plane bed, washed-out dunes/transition, ripple and dunes.
PLS MODEL FOR THE PRICE APPROACH OF CONCRETE SAND MATERIAL Yulin Patrisia; Revianti Coenraad
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 5 No. 1 (2017): Journal Balanga Edisi Januari-Juni 2017
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

This study aims to determine the factors that influence the pricing of sand concrete material in a project site and make an approach model to determine the price of relevant construction materials. The study was conducted through literature study and field survey to obtain primer data and secondary data. Approach model to fix the price of sand material by using PLS analysis. The result of research stated that there are several factors influencing the price of concrete sand material, namely economic factor, location factor, material resource factor, transportation factor, and regulation factor and government policy. The approach model to determine the price of concrete sand material shows that the transportation factor has an effect on the price of concrete sand material, while the least dominant variable is regulation factor and government policy.
METODS OF HOUSING CONTRUCTION STEPS IN PALANGKA RAYA CITY Revianti Coenraad
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 5 No. 2 (2017): Journal Balanga Edisi Juli-Desember 2017
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

Palangka Raya urban population growth is currently increasing, it impacts also the economy and the need for proper residence. This situation led to the increasing need for shelters that can be seen from the increasing filing of housing loans. This study will examine the application of housing development procedures in producing a housing product that will be transferred to consumers in a good quality product in the area of Palangka Raya. In the context of this study, development housing procedures is one of the quality systems that can be applied to residential construction project supply chain to produce a quality housing. A primary issue in this study is what is the description of procedures system on the housing development appropriate pattern and how can it be applied based on the conditions of existing resources in the City of Palangka Raya. Areas studied are middle-class residential population, in this case are consumers and housing developers in the city of Palangka Raya, who will be interviewed and filled out questionnaires that were made, and then drew the conclusion after obtaining the desired data. According to the results of the questionnaire, it can be concluded that the developers do not provide good service quality, while buyers of residential do not get the quality of housing they want. The results of this study is to get a quality house and fit in the city of Palangka Raya which made the stages as follows: identification of land ? material selec on ? land clearing ? soil heaping phase I ? bowplank installation ? founda on holing ? moun ng cerucuk Galam ? founda on assembling and casting ? founda3on sloof assembling and cas3ng ? soil heaping phase II ? adobe and sills installation. Based on construct validity results done by experts/specialists from the questionnaire that was analyzed, then obtained the validity of 88 that is in the category valid. This means that housing development procedures can be used as a standard concept of quality of housing construction type 36 which matches in Palangka Raya. Their housing development procedures is able to improve the quality of housing in the city of PalangkaRaya in this case the structure more robust and not easily cracked.
EMPOWERING COMMUNITIES OF RUBBER TANK GROUPS THROUGH THE APPLICATION OF LIQUID SMOKING IPTEX AS A MATERIAL FOR LATEX LITI VILLAGE, CENTRAL KAHAYAN DISTRICT, DISTRICT OF PULANG PISAU DISTRICT, CENTRAL KALIMANTAN PROVINCE Revianti Coenraad
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 6 No. 2 (2018): Journal Balanga Edisi Juli-Desember 2018
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

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Abstract

Bukit Liti Village is one of the villages which is administratively located in Central Kahayan District, Pulang Pisau Regency, Central Kalimantan Province. Bukit Liti Village has an area of 9,461.10 Ha with population density has reached 925 people. The location is ± 35 km from the capital of Central Kalimantan Province, Palangka Raya and ± 130 km from the town Pulang Pisau, and ± 12 km from the capital district Kahayan Tengah. Villagers in Bukit Liti village welcomed community service activities organized by Palangka Raya University, in the future they hope to conduct regular PKM activities in the village. The output resulting from this PKM activity is 3 units of pyrolysis reactor to produce liquid smoke. The use of liquid smoke as a latex freezer gives a real impact to farmers that are environmentally friendly, effective as latex clotting, preventing and reducing the bad smell of rubber materials and improving the quality of rubber processed materials. At the end of this community partnership program, the implementing team will conduct an evaluation of the implementation by conducting a simple survey of community opinions regarding program implementation, as well as their expectations of future activities.
TRAINING ON BIOGAS PRODUCTION FROM MANURE AND CONCRETE BRICK PRODUCTION TO IMPROVE THE ECONOMY OF CITIZEN IN DANAU SADAR VILLAGE, CENTRAL KALIMANTAN Lilis Rosmainar; Karelius; Rasidah; Akhmad Damsyik; I Made Sadiana; Revianti Coenraad; Tia Monika
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 9 No. 1 (2021): Journal Balanga Edisi Januari-Juni 2021
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v9i1.2954

Abstract

Danau Sadar Village is a village located in the sub-district of Dusun Selatan, 8 km from Buntok, the capital of South Barito Regency. This village has several potentials such as rubber plantation, livestock sector, tourism, and fisheries sector. Even though this potential is quite remarkable, the citizen welfare is still in low catagories due to the lack of skill in managing it. This condition happened because not all workers are engaged in the production process. Related to the condition of the community in Danau Sadar Village, an idea emerged to empower the community, by providing training to improve their skills. The objectives of community service in Danau Sadar Village are as follows: (1) assisting the people of Danau Sadar Village in developing economic independence; (2) improving entrepreneurial skills through the training provided. The community service program has been successful by carrying out two types of training activities to improve citizen welfare: training on biogas reactors from manure and brick making to obtain optimal products in terms of production costs and quality. The citizen in Danau Sadar Village welcomes this community service program. They hope that Palangka Raya University will carry out the community service program regularly in their village.
OPTIMIZATION MODEL FOR USING WATER FLOW IN HYDRAM PUMP STORAGE BARRELS AS A SOURCE OF SUSTAINABLE ELECTRICITY GENERATION ON A LABORATORY SCALE Vontas Alfenny Nahan; Topan Eka Putra; Revianti Coenraad
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 11 No. 2 (2023): Journal Balanga Edisi Juli-Desember 2023
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v11i2.11742

Abstract

Currently, energy needs are increasing greatly, this is influenced by increasing population growth and human activity. The development of simpler renewable energy must be encouraged to meet energy needs, at least to meet the domestic energy needs of households. A hydram pump is a tool that can utilize water flow to produce kinetic energy which is then converted into potential energy to lift water to a certain height. This potential energy can be converted into electrical energy through a generator. A hydram pump is a tool used to raise water from a low place to a higher place automatically with energy originating from the water itself, namely because of the height of the falling water which is used to press the valve on the hydram pump and result in a water hammer when the water is stopped automatically. suddenly, then the change in momentum of the fluid mass will also increase the pressure suddenly. This research was carried out at the Mechanical Engineering Education Laboratory at Palangka Raya University with the methods described which will include experimental steps, data collection and analysis to be carried out. This research aims to develop an optimization model for the use of water flow in the hydram pump reservoir as a source of sustainable electricity generation on a laboratory scale. The results of this research have been carried out 4 times with the height of the turbine from the bottom of the experimental floor being 3 m while the size of the exhaust valve opening is ± 4 cm and the height of the water plunge from the barrel to the hydram pump is 2 m; 1.5m; 1.2 m is able to produce stable turbine rotation so that the lights come on. However, at a height of 1 m from the barrel to the hydram pump, the turbine rotation produces dim lights.
STUDY OF BRIDGE PILLAR SHAPES ON THE POTENTIAL OF LOCAL SCOUR IN EXPERIMENTAL LEARNING FOR BUILDING ENGINEERING EDUCATION STUDENTS Topan Eka Putra; Lola Cassiophea; Revianti Coenraad; Samuel Layang; Wiratno Y Sigin; Petrisly Perkasa; Whendy Trissan; Nika Safitri; Welrenot Sinaga
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 12 No. 1 (2024): Journal Balanga Edisi Januari-Juni 2024
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v12i1.15828

Abstract

One of the elective courses in the Building Engineering Education Study Program, FKIP, Palangka Raya University is Bridge Structure. Experimental study is a way of teaching and learning that involves student activity by experiencing and proving for themselves the process and results of experiments which are closely related to everyday life. On the subject of bridge structures, it is necessary to carry out experimental studies on bridge pillars. Pillars are part of the bridge's lower structure. The existence of pillars in river flows causes changes in river flow patterns. Changes in flow patterns will result in local scouring around the pillars. This research aims to determine the effect of pillar shape on the potential for local scour that occurs around the pillar. This research was carried out under steady uniform flow conditions with three discharge variations. The physical models of pillars used are rectangular pillars, cylindrical pillars and triangular pillars. The type of research used is experimental research. The research location was carried out at the Building Engineering Education Laboratory, FKIP UPR with glass channel media with dimensions of 200 cm long, 15 cm wide and 20 cm high. In the test with flow discharge Q1= 40.08 cm3/sec, the maximum scour in the middle of the pillar that occurred was (ds)= 0.2 cm and the average at the edge was (ds)= 0.3 cm for pillars with the shape rectangular, while for triangular and cylindrical pillars experiencing sedimentation, Q2= 100.20 cm3/sec. The maximum scour at the center of the pillar that occurs is (ds)= 1.3 cm and the average at the edges is (ds) = 1.4 cm for rectangular pillars, while for triangular and cylindrical pillars experiencing sedimentation, Q3= 107.04 cm3/sec. The maximum scour in the center of the pillar that occurs is (ds)= 1.5 cm and is flat -average at the edge is (ds)= 1.5 cm for pillars with a rectangular shape, while for pillars with a rectangular shape and cylinders experience sedimentation. The results obtained from this series of research are that the greater the discharge flowing in a channel cross-section, the deeper the local scour around the pillars will be and the best shape in this study is a cylindrical shape because it has the potential for the smallest scour depth.
UTILIZATION OF WOOD WASTE AND REJECTED PALM OIL SEEDS FOR ROCKET STOVE FUEL AS AN ALTERNATIVE TO LPG GAS IN PETUK LITI VILLAGE, CENTRAL KALIMANTAN Cassiophea, Lola; Ni Putu Diah Agustin Permanasuri; Danar Airangga Windra Gautama; Ruslan; Revianti Coenraad; Tuah; Mega Kurniawati; Sri Wahyuni
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 12 No. 2 (2024): Journal Balanga Edisi Juli-Desember 2024
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v12i2.17027

Abstract

This service activity aims to explore the potential for utilizing wood waste and rejected palm kernels as alternative fuel for rocket stoves in Petuk Liti Village, Pulang Pisau Regency, Central Kalimantan. The background to this research is the urgent need for alternative energy sources that are cheaper and environmentally friendly, considering the increasing price of LPG gas and the limited access of rural communities to reliable energy sources. Utilizing wood waste and rejected palm kernels as fuel not only offers an economical solution, but also helps in waste management and reducing carbon emissions, which is in line with sustainable development goals. This service involves several important stages, starting from collecting and processing raw materials, developing and testing stoves, as well as the economic and environmental benefits of using alternative fuels. It is hoped that this activity can be implemented more widely in other areas that have limited access to conventional energy, as well as supporting the government's efforts to achieve national energy security and reduce carbon emissions. The output target of this service is to make a significant contribution to the development of renewable energy technology based on local resources, as well as providing a more environmentally friendly and economical alternative for the people of Petuk Liti Village.
LAND WETTING USING THE HYDRAM PUMP METHOD IN PREVENTING PEATLAND FIRES Topan Eka Putra; Frans Putra Ganesa; Samuel Layang; Tuah; Revianti Coenraad; Berkat Yuda; Lola Cassiophea; Wiratno Y Sigin; Danar Airangga Windra Gautama
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 12 No. 2 (2024): Journal Balanga Edisi Juli-Desember 2024
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v12i2.17028

Abstract

Peatlands are an ecosystem that has an important role in the environment, including carbon storage, biodiversity habitat, and water availability (Murdiyarso et al., 2010). However, peatlands are also very vulnerable to fire, especially in extreme dry season conditions (Page et al., 2002). Peatland fires can cause significant environmental losses, including greenhouse gas emissions, loss of biodiversity, and negative impacts on public health due to the smoke produced (Masykur et al., 2019). Therefore, efforts to prevent peatland fires are very important to maintain the sustainability of this ecosystem and public health. The hydram pump method was chosen as an innovative solution in this research because of its ability to pump water continuously without requiring an electricity or fuel source. This makes it a sustainable and environmentally friendly alternative for wetting peatlands, which in turn can increase soil moisture and reduce the risk of fire (Wardhana et al., 2021). By utilizing this method, it is hoped that soil moisture can be maintained, making the land less susceptible to fire. The type of research used is experimental research. The research location was carried out at the Building Engineering Education Laboratory, FKIP UPR with a hydram pump and a drip irrigation system on differences in land elevation from plant water sources and water use efficiency. The target achieved is that this research will be published in the SINTA 5 and HKI Accredited Journals.
MAKING A PROTECTIVE ROOF FOR PORTABLE COMPOST FERTILIZER MEDIA SYSTEMS FOR GARDENS IN BUKIT TUNGGAL VILLAGE, PALANGKA RAYA CITY Revianti Coenraad; Wiratno Y Sigin; Trissan, Whendy; Topan Eka Putra; Frans Putra Ganesa; Sri Wahyuni
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 13 No. 1 (2025): Journal Balanga Edisi Januari-Juni 2025
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v13i1.18436

Abstract

Agriculture is the economic backbone and source of life for many communities in Indonesia, including the City of Palangkaraya. The Sumber Makmur Farmers Group is a clear example of an agricultural community that strives to increase crop production and manage organic waste sustainably. However, they often face obstacles in producing quality compost due to external weather influences. Through this community service, we can also increase awareness of the importance of sustainable and environmentally friendly agricultural practices. The Sumber Makmur Farmers Group can be an example for other communities in implementing simple but effective technology to increase agricultural productivity in a sustainable manner. Thus, the activity of making a protective roof for portable compost fertilizer systems is not only a technical contribution to local agriculture, but is also a real effort to advance community welfare and maintain environmental sustainability in Palangka Raya City.
Co-Authors Akhmad Damsyik Berkat Yuda Carles Willianson Cassiophea, Lola Chandra Edward L.Gaol Chichilya Kosmawanti Danar Airangga Windra Gautama Doni Setiawan Dony Setiawan Frans Putra Ganesa I Made Sadiana Karelius Lilis Rosmainar Lola Cassiophea Mega Kurniawati Ni Putu Diah Agustin Permanasuri Nika Safitri Petrisly Perkasa Rasidah Ricky Rianto Rio Rimbawan Ruslan Safitri, Nika Sakresna Putra Nadea Samuel Layang Saptono Sinaga, Betty Setiawaty Sri Wahyuni Tarita Aprilani Sitinjak Tia Monika Topan Eka Putra Trissan, Whendy Tuah Vontas Alfenny Nahan Welrenot Sinaga Whendy Trissan Wiratno Y Sigin Yulin Patrisia