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ASEAN Journal of Systems Engineering
Published by Universitas Gadjah Mada
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Engineering
ASEAN Journal of Systems Engineering (AJSE) is published by Master Program of Systems Engineering, Faculty of Engineering, Universitas Gadjah Mada as a mean for publishing scientific works in form of research papers, literature study, or scientific review on published articles, about systems engineering especially in the field of energy, industry and environment. The journal is published twice a year (June and December), in both print and online versions.
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 6, No 2 (2022): ASEAN Journal of Systems Engineering" : 5 Documents clear
ANALYSIS OF TECHNO-ECONOMIC PLANNING OF ON-GRID ROOFTOP PV SYSTEM AT THE GOVERNMENT HOUSE OF PACITAN REGENCY Ansori, Tirangga; Setiawan, Ahamd Agus; Wilopo, Wahyu
ASEAN Journal of Systems Engineering Vol 6, No 2 (2022): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajse.v6i2.75808

Abstract

The geographical condition, which is relatively difficult to reach, electricity and infrastructure has not been maximized, making the electrification ratio in Pacitan Regency one of the lowest on the island of Java at 65%. Pacitan Regency has a promising renewable energy potential, but it has not been maximized for the benefit of the residents. One of them is a solar power plant. If used properly, this alternative energy source can be a solution to meet energy needs in remote areas. As part of the Government's efforts to achieve the new and renewable energy (RE) target of 23% by 2025, the Ministry of Energy and Mineral Resources has issued Minister of Energy and Mineral Resources Regulation Number 26 of 2021 concerning Connected Rooftop Solar Power Plants. On the Electric Power Network, the Holder of a Business License for the Provision of Electric Power for Public Interest (IUPTLU). This Ministerial Regulation is a refinement of the previous regulation to improve the governance and economics of PV, especially PV Rooftop. This regulation is also a step to respond to the existing dynamics and facilitate the public's desire to obtain electricity from renewable energy sources, as well as the desire to contribute to reducing greenhouse gas emissions. This study was conducted to calculate the optimum potential of rooftop photovoltaic power plants in the official residence of the Pacitan Regency Government as an alternative energy source to supply the electricity system from the official residence. This simulation was carried out using the System Advisor Model (SAM) software, considering the technical and economic aspects. Where the economic calculation has two scenarios, namely the profit value based on the Minister of Energy and Mineral Resources Regulation No. 26 of 2021 and the Minister of Energy and Mineral Resources No. 49 of 2018 with total energy produced of 13012 kWh / year with a total of 20 modules installed with a slope of 20o facing north and 1 Inverter and an LCOE value of Rp. 1231.31/kWh, and an NPV of Rp. 117,579,325.50.
SUSTAINABILITY ANALYSIS OF MICROHYDRO POWER PLANTS IN JAYAPURA REGENCY, PAPUA Adhitia, Pius; Sulaiman, Muhammad; Budiarto, Rachmawan
ASEAN Journal of Systems Engineering Vol 6, No 2 (2022): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajse.v6i2.76534

Abstract

The need for energy and electricity in a number of regions currently tends to increase every year. The fast pace of modernization and increasing economic activity in various parts of Indonesia are the main factors triggering the increase in energy demand. The data analysis technique in this study was using quantitative correlation methods with questionnaires and data from field observations. Data in the form of questionnaires and data from observations are primary data in this study. The purpose of this survey is to measure the performance of Micro hydro Power Plants (MHPP) at each site using KPIs related to the sustainability of the site. In addition to verifying objects that are connected and not connected to the MHPP, this survey also covers topics related to the sustainability of the MHPP site which includes operational status, finances, checking of physical components and the results obtained. Based on a survey conducted on the five MHPP sites, there are 325 houses stairs, 24 social institutions, and 28 PUE, Non-functioning buildings are the main reason, Damage to components and the presence of new generators are the main reasons behind MHPP not operating, There is a correlation between MHPP performance and customer satisfaction, Tariff system applied by all MHPP sites is a fixed rate with a cost of Rp. 20,000.00 to Rp. 30,000.00, All MHPP sites, Damage to generator and ELC components, Deforestation occurs in all MHPP sites, and Based on physical checks on MHPP.
CO-COMBUSTION EVALUATION OF SPENT BLEACHING EARTH AND COAL: A STUDY CASE IN CEMENT INDUSTRY Lestianingrum, Erna; Bramantiyo, Ranoe; Nugraha, Maulana Gilar
ASEAN Journal of Systems Engineering Vol 6, No 2 (2022): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajse.v6i2.78114

Abstract

As one of largest producers of greenhouse gas (GHG) emission, cement industries are committed to applying alternative ways to reduce the GHG emission level. Co-combustion of spent bleaching earth (SBE) and coal in cement industry is evaluated to reduce dependencies on fossil fuels. Such evaluation is conducted at one of cement plants in Indonesia owned by PT Indocement Tunggal Prakarsa Tbk. Palimanan Unit (PT ITP Palimanan Unit). Combustion in rotary kiln and calciner in two plant units (P9 and P10) were analyzed and compared. The comparison was conducted not only between plant units but also in different combustion operations, i.e., with and without SBE utilization as co-combustion agent. Several parameters consisting of temperature and gas compositions, which include CO, PM, SO2, NO2, CO2, and O2, were analyzed.The study results show insignificant differences in the kiln temperature, while in the calciner, SBE utilization enhances temperature level by up to 40°C compared to the process without SBE. Based on gas composition measurement, slight discrepancies are observed between the two different combustion conditions, although different trends in average absolute value are obtained. NO2 and PM concentrations are found to be slightly higher in the system without SBE, while an opposite trend is observed in SO2 emission. The study also discovered that properties of raw coal and SBE influence the emission trend in the combustion system. This work highlights the potential of SBE co-combustion with coal to be applied in a continuous manner since it provides slightly higher energy conversion while maintaining nearly similar emission level. In addition, the utilization of SBE is found to not cause significant disturbance to the rotary kiln and calciner operations.
PIAT DEVELOPMENT TOWARDS WELLNESS TOURISM WITH KANSEI ENGINEERING AND KANO MODELS Istikomah, Sintha; Ushada, Mirwan; Masruroh, Nur Aini
ASEAN Journal of Systems Engineering Vol 6, No 2 (2022): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajse.v6i2.78753

Abstract

Wellness tourism is one of the efforts to revive the Indonesian tourism sector during the transition period of the pandemic to endemic. People seek prevention and health maintenance by traveling to get a better quality of life. Giving rise to wellness tourism as wellness and health tourism in the form of health care based on a healthy natural environment and restoration of relaxation. One of the innovations carried out by PIAT is the development of agro-industry by applying the concept of wellness tourism. Tourist attractions will be more valuable if they can meet the needs of the highest level, namely pleasure. This study aims to: (1) identify the words Kansei of prospective tourists related to wellness tourism. (2) determine the concept model of wellness tourism atmosphere design that suits the pleasure needs of tourists. (3) improve the products and services of the Agrotechnology Innovation Center (PIAT) based on the priority attribute of tourist needs. This research used the Kansei engineering method and the kano model. Semantic Differential (SD) Questionnaire 1 to capture images of wellness attractions. Kansei engineering begins with the collection of tourist pleasure needs in the form of Kansei word, simplifying Kansei word with factor analysis, categorization analysis of Kano models, identification of technical attributes, dissemination of SD 2 questionnaires and questionnaire analysis with quantification theory 1 (QT1) to determine the correlation between tourist attributes and design concepts quantitatively. The results obtained from the first questionnaire, there are nine Kansei words that describe wellness tourism places at PIAT UGM, namely "Worthy-Shady", "Quite Adequate-Good", "Warm-Cool", "Spread-Neat", "Somber-Fun", "Set-Customized", "General-Local Wisdom", "Independent-Existence of Guides", and "Vintage-Latest (Update)". The order of priority of improvement is based on the attraction & one attribute. In addition, this study produced five concepts of wellness tourism service design atmosphere that suit the pleasure needs of tourists, namely: "cool", "local wisdom", "fun", "the presence of a guide", and "good". The results showed that all service design concepts have an R-value of more than 0.8 so all concepts are used in determining service design prototypes.
ANALYSIS OF SOLAR ENERGY POTENTIAL TO ACHIEVE NEARLY ZERO ENERGY COMMUNITY. (CASE STUDY: MALIOBORO STREET, YOGYAKARTA). Yuan, Anita; Ridwan, Mohammad Kholid; Setiawan, Bakti
ASEAN Journal of Systems Engineering Vol 6, No 2 (2022): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajse.v6i2.96176

Abstract

A number of concrete strategies developed at global, national and local level as a step forward in implementing the sustainability in the community. An interesting concept introduced by the European Commission about buildings that can reach nearly zero energy building with energy efficiency and use the integration of renewable energy sources. This concept then developed into nearly zero Energy Community (nZEC) at community level referring to a group of buildings. Along with the vision of the Malioboro area in the RTBL Final Report on the creation of an environment-friendly and sustainable Malioboro area, research on the potential of solar energy as a PV power source is conducted.This study applies a mapping of the distribution of solar energy potential using 3D building data analysis on Open Street Map (OSM) and Digital Elevation Model (DEM). ArcGIS Pro software was applied to analyze 3D buildings data and geospatial aspects. This study shows a negative correlation between building density and the average solar energy potential with a coefficient of determination R2=0.85. Coverage Degree shows that only by using a solar energy conversion system, the level of coverage by renewable energy can be achieved from 10.25% – 12.56%. However, this value is not enough to achieve energy independence through the nearly Zero Energy Community (nZEC) concept, so a way is needed to achieve it in the future. Significant planning and geometric parameters in relation to performance indicators provide insight as a reference for establishing solar energy-friendly urban planning and architectural design guidelines.

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