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International Journal of Advanced Multidisciplinary

IJAM
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Published by Green Publisher Indonesia

ISSN : 28296184 EISSN : 28296192 DOI : https://doi.org/10.38035/ijam.v1i1

Core Subject : Economy, Science, Education, Social,

Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences

International Journal of Advanced Multidisciplinary (IJAM) is an international, peer reviewed, open access, scientific and scholarly journal which publishes Research papers, Review papers, Mini reviews, Case reports, Case studies, Short communications, Letters, Editorials, Books, Thesis, Dissertation works, etc., from all the aspects of Agricultural Science, Biological Science, Business, Chemical Science, Education Science, Engineering and Technology, Humanities, Life Science, Physical Science, Marine Science, Social science. After publishing, articles are freely available through online without any restrictions or any other subscriptions to researchers and readers worldwide.

Arjuna Subject : Umum - Umum

Articles 294 Documents

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Techno-Economic Comparison of Vehicle-to-Building Lithium-Ion Battery and Diesel Generator Systems for Smart Building Backup Power Using HOMER Pro Lolly Immanuel Berty Mongi; Lilly S Wasitova; Oo Abdul Rosyid
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2276

The transition toward a low-carbon energy system is driving the development of smart buildings that require reliable, environmentally friendly backup power systems. Diesel generators remain the dominant option despite their fossil-fuel consumption and emissions, while Vehicle-to-Building (V2B)-based Lithium-ion battery systems offer a promising but underexplored alternative, particularly in Indonesian smart buildings. This study evaluates the techno-economic feasibility of a V2B-based Lithium-ion battery system as an alternative backup power source, using HOMER Pro to model a representative five-story office building (977 m²). Two configurations were compared: Grid + Diesel Generator and Grid + V2B-based Lithium-ion Battery, assessed technically, economically (Net Present Cost, Cost of Energy, Operating Cost), and environmentally. Results show the V2B system can supply backup power for 4.10 hours and eliminate diesel fuel consumption by 100%, but produces 61.2% higher NPC, 65.7% higher COE, and 36.8% higher operating cost, with only a 0.18% reduction in CO2 emissions. Although not yet the most economical alternative, the V2B system significantly enhances building energy resilience and represents a promising pathway toward cleaner backup power as battery costs decline and electric vehicle adoption increases.

Improving Network Fault Protection at 20/0.4 kV for General Hospital Operations through ETAP Simulation-Based Protection Relay Re-Setting Mochamad Aminudin; Abdul Multi; Agus Sofwan
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2278

Fires caused by electrical disturbances are a major cause of material loss and safety risk in hospital buildings, particularly from short-circuit faults that are not selectively isolated by the existing protection system. This study evaluates the performance of the 20/0.4 kV distribution network protection system in a type-B general hospital and formulates a re-setting of the Over Current Relay (OCR) and Ground Fault Relay (GFR) to satisfy the principles of selectivity, sensitivity, reliability, and speed. A quantitative method with an ETAP 19.0.1 simulation approach was used, supported by field observation and historical fault data. The results show that the existing protection coordination has a grading margin of less than 0.2 seconds between relay levels, resulting in non-selective operation, consistent with a laboratory fire incident that was not isolated quickly. After re-setting based on short-circuit simulation and Time Current Characteristic (TCC) curve analysis, the protection coordination becomes selective, with a total clearance time on the priority feeder below 1.5 seconds and a considerably narrower outage area. This study recommends implementing the new settings together with primary injection testing and standardized documentation procedures for the hospital's electrical team.

Optimization of Internet of Things-Based Solar Panel Cooling Using Splash Fill Abdul Rochim; Masbah R.T. Siregar; Rivira Yuana
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2279

Solar panel performance is strongly affected by module surface temperature because a large portion of incident solar radiation is converted into heat rather than electrical energy. Although water-based photovoltaic cooling has been widely investigated, many existing systems still rely on open-loop or manually activated cooling and provide limited integration between thermal recovery, adaptive control, and real-time monitoring. This study proposes an Internet of Things-based automatic solar panel cooling system that combines closed-loop water circulation, splash fill-assisted water temperature reduction, MQTT communication, and Home Assistant monitoring for tropical operating conditions. The system was evaluated using two 100 Wp monocrystalline photovoltaic panels under identical environmental conditions, where one panel was equipped with the proposed cooling system and the other was operated without cooling. Key parameters, including panel temperature, water temperature, voltage, current, output power, irradiance, daily energy, and efficiency, were measured at 10-minute intervals over two experimental days. The results show that the proposed system reduced panel temperature by 19.22-20.10°C, increased output power by 26.35-28.89 W, and improved average efficiency by 3.42-4.18%. Net daily energy increased by 154.88-167.04 Wh after considering pump consumption. These findings demonstrate that integrating splash fill cooling with Internet of Things-based adaptive monitoring provides a practical and scientifically relevant approach for improving photovoltaic performance in tropical environments.

Analysis of the Role of the Sustainable Food Yard Program (P2L) in Enhancing Household Food Security and Welfare in Nagan Raya Regency Aurum Sahlida; Lukman Hakim; Anwar Deli
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2280

This study aims to examine the role of the Sustainable Food Yard Program (Pekarangan Pangan Lestari—P2L) in strengthening household food security and improving household welfare in Nagan Raya Regency, Aceh Province, Indonesia. Specifically, the study evaluates the effectiveness of program implementation, assesses changes in household food expenditure before and after participation in the program, and identifies the food security status of beneficiary households based on selected socioeconomic characteristics. A quantitative survey design was employed involving 92 beneficiary households selected through purposive sampling from a population of 291 program participants. Primary data were collected through structured questionnaires, in-depth interviews, field observations, and documentation, while the data were analyzed using descriptive evaluative analysis, the Wilcoxon Signed-Rank Test, and cross-tabulation analysis. The findings reveal that the implementation of the P2L Program achieved an effectiveness level of 70.4%, indicating that the program was implemented effectively. Furthermore, participation in the program significantly reduced household food expenditure by 21.6%, with the average monthly expenditure declining from IDR 1,154,348 to IDR 905,435 (Z = −8.464; p < 0.05). The analysis also indicates that 67.4% of beneficiary households were classified as food secure. Higher levels of food security were observed among households that had participated in the program for more than two years and those capable of marketing surplus produce from their home gardens. These findings demonstrate that the P2L Program contributes substantially to enhancing household food security while simultaneously improving economic welfare through the productive utilization of home gardens.

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Home Page

OAI Link

Editorial Team

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Contact Name Greenation Publisher

Contact Email greenation.info@gmail.com

Phone +6281188062005

Journal Mail Official greenation.info@gmail.com

Editorial Address Jl. Kapt. A. Hasan, Telanaipura Jambi

Location Unknown, Unknown INDONESIA

Abstract

Abstract

Abstract

Abstract

Contact Name
Greenation Publisher

Contact Email
greenation.info@gmail.com

Phone
+6281188062005

Journal Mail Official
greenation.info@gmail.com

Editorial Address
Jl. Kapt. A. Hasan, Telanaipura Jambi

Location
Unknown,

Unknown

INDONESIA