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All Journal PENELITIAN DAN KARYA ILMIAH Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Journal of Applied Engineering and Technological Science (JAETS) JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Indonesia Sosial Sains International Journal of Applied Sciences and Smart Technologies
Supriyadi Supriyadi
Universitas Trisakti
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PENGGANTIAN AC TIPE SPLIT-DUCT DENGAN SISTEM WATER COOLED CHILLER DI PUSAT PERBELANJAAN X BANDUNG Endi Jumairi; Chalilullah Rangkuti; Supriyadi Supriyadi
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v7i2.13331

Abstract

Penurunan konsumsi energi sistem HVAC menjadi semakin penting karena meningkatnya biaya bahan bakar fosil yang berdampak juga kepada meningkatnya biaya pembangkit listrik dan masalah lingkungan. Karena itu, untuk mengurangi konsumsi energi di gedung tanpa mengorbankan kenyamanan dan kualitas udara dalam ruangan merupakan tantangan penelitian yang sedang berlangsung. Setiap disiplin HVAC memiliki persyaratan desain khusus dan masing-masing memberikan peluang untuk penghematan energi. Dengan tingginya konsumsi energi listrik untuk HVAC ini yang rata–rata 50% dari total penggunaan listrik gedung, maka pihak pengelola dan pemilik gedung melakukan berbagai upaya untuk melakukan penghematan energi listrik, salah satunya dengan mengganti AC splitduct yang sudah terpasang selama 20 tahun dengan water cooled chiller. Total unit AC Split Duct yang terpasang untuk mendinginkan seluruh pusat perbelanjaan adalah sebanyak 280 unit dengan total kapasitas 1860 TR, penggantian dilaksanakan secara  bertahap, untuk tahap pertama dengan mengganti 43 unit AC split duct dengan total kapasitas 500 TR dengan water cooled chiller kapasitas 500 TR, sehingga dengan penggantian ini ada lantai yang disupply dari AC splitduct dan ada yang di suplai water cooled chiller system. Penulis menghitung konsumsi energi listrik yang dibutuhkan untuk kedua tipe AC ini dengan membandingkan beban actual (kWatt) dari AC splitduct dengan water cooled chiller system, dengan cakupan luas area yang sama dari kedua Tipe AC tersebut, dari nilai penghematan yang diperoleh, dihitung waktu pengembalian investasi dari water cooled chiller system
PENGGANTIAN AC TIPE SPLIT-DUCT DENGAN SISTEM WATER COOLED CHILLER DI PUSAT PERBELANJAAN X BANDUNG Endi Jumairi; Chalilullah Rangkuti; Supriyadi Supriyadi
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1419.29 KB) | DOI: 10.25105/pdk.v7i2.13331

Abstract

Penurunan konsumsi energi sistem HVAC menjadi semakin penting karena meningkatnya biaya bahan bakar fosil yang berdampak juga kepada meningkatnya biaya pembangkit listrik dan masalah lingkungan. Karena itu, untuk mengurangi konsumsi energi di gedung tanpa mengorbankan kenyamanan dan kualitas udara dalam ruangan merupakan tantangan penelitian yang sedang berlangsung. Setiap disiplin HVAC memiliki persyaratan desain khusus dan masing-masing memberikan peluang untuk penghematan energi. Dengan tingginya konsumsi energi listrik untuk HVAC ini yang rata–rata 50% dari total penggunaan listrik gedung, maka pihak pengelola dan pemilik gedung melakukan berbagai upaya untuk melakukan penghematan energi listrik, salah satunya dengan mengganti AC splitduct yang sudah terpasang selama 20 tahun dengan water cooled chiller. Total unit AC Split Duct yang terpasang untuk mendinginkan seluruh pusat perbelanjaan adalah sebanyak 280 unit dengan total kapasitas 1860 TR, penggantian dilaksanakan secara  bertahap, untuk tahap pertama dengan mengganti 43 unit AC split duct dengan total kapasitas 500 TR dengan water cooled chiller kapasitas 500 TR, sehingga dengan penggantian ini ada lantai yang disupply dari AC splitduct dan ada yang di suplai water cooled chiller system. Penulis menghitung konsumsi energi listrik yang dibutuhkan untuk kedua tipe AC ini dengan membandingkan beban actual (kWatt) dari AC splitduct dengan water cooled chiller system, dengan cakupan luas area yang sama dari kedua Tipe AC tersebut, dari nilai penghematan yang diperoleh, dihitung waktu pengembalian investasi dari water cooled chiller system
Pembuatan Aerator Dengan Menggunakan Tenaga Surya Untuk Pemeliharaan Ikan Pada Kolam Berdimensi Kecil Sentot Novianto; Supriyadi Supriyadi; Abigunto Amoro Adji; Muhammad Faishal Ammar
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 4 No 1 (2022): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.959 KB) | DOI: 10.25105/jamin.v4i1.9652

Abstract

Kebutuhan udara pada kolam pemeliharaan ikan sangat vital untuk kelangsungan hidup ikan yang dipelihara. Beberapa kolam yang dikembangkan tidak memiliki suplai udara yang cukup, seperti pemeliharaan ikan di dalam terpal ataupun di dalam akuarium. Tumbuhnya ikan menyebabkan kebutuhan udara di dalam air meningkat. Solusi untuk menyuplai udara di kolam adalah dengan menggunakan aerator. Aerator yang biasa digunakan pada umumnya menggunakan energi listrik langsung dari PLN atau berbahan bakar diesel. Penggunaan energi tersebut menimbulkan biaya yang cukup besar dan berpengaruh terhadap keuntungan budidaya ikan. Kegiatan PkM ini bertujuan untuk membuat sistem aerator sebagai penyuplai udara pada kolam berdimensi kecil dengan sumber energi penggerak aerator menggunakan energi alternatif yaitu surya (panel surya). Metode yang digunakan adalah dengan membuat tracker panel surya untuk mengoptimalkan energi surya yang akan digunakan untuk aerator. Hasil yang telah dicapai berupa prototype aerator bertenaga surya 100 Wp yang dapat dipergunakan untuk mendukung budidaya ikan di lokasi mitra PkM yaitu di Griya Asri, Purwakarta.
PENGGANTIAN AC TIPE SPLIT-DUCT DENGAN SISTEM WATER COOLED CHILLER DI PUSAT PERBELANJAAN X BANDUNG Endi Jumairi; Chalilullah Rangkuti; Supriyadi Supriyadi
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v7i2.13331

Abstract

Penurunan konsumsi energi sistem HVAC menjadi semakin penting karena meningkatnya biaya bahan bakar fosil yang berdampak juga kepada meningkatnya biaya pembangkit listrik dan masalah lingkungan. Karena itu, untuk mengurangi konsumsi energi di gedung tanpa mengorbankan kenyamanan dan kualitas udara dalam ruangan merupakan tantangan penelitian yang sedang berlangsung. Setiap disiplin HVAC memiliki persyaratan desain khusus dan masing-masing memberikan peluang untuk penghematan energi. Dengan tingginya konsumsi energi listrik untuk HVAC ini yang rata–rata 50% dari total penggunaan listrik gedung, maka pihak pengelola dan pemilik gedung melakukan berbagai upaya untuk melakukan penghematan energi listrik, salah satunya dengan mengganti AC splitduct yang sudah terpasang selama 20 tahun dengan water cooled chiller. Total unit AC Split Duct yang terpasang untuk mendinginkan seluruh pusat perbelanjaan adalah sebanyak 280 unit dengan total kapasitas 1860 TR, penggantian dilaksanakan secara  bertahap, untuk tahap pertama dengan mengganti 43 unit AC split duct dengan total kapasitas 500 TR dengan water cooled chiller kapasitas 500 TR, sehingga dengan penggantian ini ada lantai yang disupply dari AC splitduct dan ada yang di suplai water cooled chiller system. Penulis menghitung konsumsi energi listrik yang dibutuhkan untuk kedua tipe AC ini dengan membandingkan beban actual (kWatt) dari AC splitduct dengan water cooled chiller system, dengan cakupan luas area yang sama dari kedua Tipe AC tersebut, dari nilai penghematan yang diperoleh, dihitung waktu pengembalian investasi dari water cooled chiller system
Analysis of Participatory Approaches of Community-Based Sustainable Marine Protected Area Management Groups Alyandra Gusman; Supriyadi Supriyadi
Jurnal Indonesia Sosial Sains Vol. 5 No. 03 (2024): Jurnal Indonesia Sosial Sains
Publisher : CV. Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jiss.v5i03.1026

Abstract

This study was conducted to see the role of community participation in the management of community-based marine protected areas. In addition, this study also shows the impact of conservation area management on improving community welfare and improving the quality of the environment. The research design used is a mixed method which is a combination of qualitative and quantitative analysis. Qualitative analysis uses in-depth interview methods with resource persons, while quantitative analysis uses the one-sample test method to test respondents' perceptions related to research variables. The research sample consisted of the Head of the Management Group, Village Head, Traditional Head, Religious Leaders, and Community Member Representatives in Roon District, Teluk Wondama Regency, West Papua, Indonesia. Research findings show that the role of the community in the management of conservation areas is very high, this can be seen from the supervisors of conservation area management groups consisting of Government, Religious, and Social groups. In addition, active participation from the community around the conservation area is also the key to the success of good area management. The findings of one sample test showed, that 1) The participation of members of the Marine Protected Area group has been classified as high, 2) Sasi culture has been proven to affect the income level of the community, 3) Member participation has been proven to be active in decision making, 4) The existence of Sasi has been proven to increase the sustainability of natural resources, 5) Proven to successfully contribute to the achievement of SDG number 14.
Analysis of Participatory Approaches of Community-Based Sustainable Marine Protected Area Management Groups Alyandra Gusman; Supriyadi Supriyadi
Jurnal Indonesia Sosial Sains Vol. 5 No. 03 (2024): Jurnal Indonesia Sosial Sains
Publisher : CV. Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jiss.v5i03.1026

Abstract

This study was conducted to see the role of community participation in the management of community-based marine protected areas. In addition, this study also shows the impact of conservation area management on improving community welfare and improving the quality of the environment. The research design used is a mixed method which is a combination of qualitative and quantitative analysis. Qualitative analysis uses in-depth interview methods with resource persons, while quantitative analysis uses the one-sample test method to test respondents' perceptions related to research variables. The research sample consisted of the Head of the Management Group, Village Head, Traditional Head, Religious Leaders, and Community Member Representatives in Roon District, Teluk Wondama Regency, West Papua, Indonesia. Research findings show that the role of the community in the management of conservation areas is very high, this can be seen from the supervisors of conservation area management groups consisting of Government, Religious, and Social groups. In addition, active participation from the community around the conservation area is also the key to the success of good area management. The findings of one sample test showed, that 1) The participation of members of the Marine Protected Area group has been classified as high, 2) Sasi culture has been proven to affect the income level of the community, 3) Member participation has been proven to be active in decision making, 4) The existence of Sasi has been proven to increase the sustainability of natural resources, 5) Proven to successfully contribute to the achievement of SDG number 14.
Utilization of Cocopeat, Empty Fruit Bunch, and Palm Kernel Shell as Renewable Energy Feedstock in Boiler Annisa Bhikuning; Supriyadi Supriyadi; Sandi Apriandi Setiawan; Yustika Agustin; Suhaila Binti Hussain
Journal of Applied Engineering and Technological Science (JAETS) Vol. 7 No. 2 (2026): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/4tv82m49

Abstract

The increasing generation of biomass waste from coconut and palm oil industries presents both environmental challenges and opportunities for renewable energy utilization. This study evaluates the potential of cocopeat, empty fruit bunch (EFB), and palm kernel shell (PKS) as alternative fuels in boiler applications through fuel characterization, blending analysis, and thermochemical performance modeling. This research aims and objective to characterize the three wastes, determine the best composition mixture as boiler fuel, and estimate the potential exhaust gas emissions. This research uses laboratory testing methods, calculation of calorific value, and estimation of exhaust gas emissions (CO₂, SO₂, NO₂) using stoichiometric calculations and steam production modeling based on energy balance principles. The test was carried out by comparing cocopeat pellets (PECO); a mixture of 50% cocopeat and 50% EFB (BCO); PKS; and EFB. The results showed that 10% PECO, 30% EFB, 60% PKS has a high calorific value of 17.05 MJ/kg. Furthermore, NO2 emissions and steam production rate are decreased to 3.42% and 7.93% than 20% PECO, 40% EFB, 40% PKS. This is due to the high value of the coconut shell fraction (PKS), which produces a high calorific value. Furthermore, the cocopeat mixture, consisting of 10%BCO, 30%EFB, and 60%PKS, has low NO2 emissions and can produce high steam in boilers. This indicates that cocopeat can be used as a new fuel when mixed with EFB, thereby maximizing the utilization of coconut waste and reducing environmental impact.
Convergence and Empirical Performance of Tanh-Based Adaptive Particle Swarm Optimization Joko Riyono; Aina Latifa Riyana Putri; Sofia Debi Puspa; Supriyadi Supriyadi; Christina Eni Pujiastuti; Fayza Nayla Riyana Putri
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 10 No 3 (2026): June 2026
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29207/resti.v10i3.7247

Abstract

Particle Swarm Optimization (PSO) is a widely used population-based optimization method but faces challenges in premature convergence, leading to suboptimal solutions. To address this issue, this study proposes a Tanh-Based Acceleration Coefficient PSO (TB-PSO), where the acceleration coefficients are modified using the hyperbolic tangent (tanh) function. The smooth and continuous behavior of tanh enables gradual coefficient updates, limits excessive particle velocities, and maintains swarm diversity, thereby improving convergence stability and balancing exploration and exploitation. The convergence theorem analysis confirms that TB-PSO meets stability criteria before being evaluated on unimodal and multimodal benchmark functions in 10 and 30 dimensions. Its performance is compared against several PSO variants, including TVAC-PSO, SCAC-PSO, NDAC-PSO, and SAC-PSO. In the 10-dimensional experiments, TB-PSO achieves the best overall final ranking based on the average and standard deviation of best solution, ranking first for functions f₃ and f₅, second for f₂ with only a marginal difference from the best-performing method, and remaining competitive for f₁ and f₄. These results indicate superior solution quality and stable convergence. For the 30-dimensional benchmark functions, TB-PSO ranks first for f₂, second for f₅, and third for f₁, f₃, and f₄ based on the same evaluation criteria. Although its ranking decreases compared to the 10-dimensional case, TB-PSO remains competitive, reflecting the increased complexity of high-dimensional optimization problems. Overall, the results demonstrate that the tanh-based acceleration coefficient modification effectively enhances PSO performance, particularly in lower-dimensional search spaces, while maintaining robustness in higher-dimensional scenarios.
IoT Based Nozzle Actuation System Design for Automated Fish Feed Distribution Sentot Novianto; Larasati Putri; Amrullah Ibrahim; Tono Sukarnoto; Faisal Adinegoro; Supriyadi Supriyadi; Nanang Ruhiyat
International Journal of Applied Sciences and Smart Technologies Vol. 8 No. 1 (2026): Volume 08, Issue 1, June 2026
Publisher : Faculty of Science and Technology, Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/cs137362

Abstract

This study presents the design and development of an IoT-based nozzle actuator system intended to improve the accuracy and efficiency of automatic fish-feed distribution. The system was designed using an ESP32 microcontroller as the central controller, a servo motor as the nozzle-direction actuator, and the Blynk application as the remote monitoring and control interface. This configuration enables users to adjust the nozzle’s direction and feed-dispersion intensity through both manual control and scheduled timer modes. A series of experiments was conducted to evaluate mechanical performance, IoT connectivity stability, response time, and cross-device application compatibility. The experimental results indicate that the proposed system improves feed-distribution efficiency by 32.6% compared to conventional manual methods. Feed waste was reduced by 28.4% due to more uniform distribution and minimized overfeeding. The average command-to-actuator response time was measured at 0.82 seconds, demonstrating stable real-time performance. Application testing across five smartphone devices (Redmi 12, Huawei P30, Redmi Note 9, Samsung M23, and Little M3) achieved a 100% success rate for login, timer functions, and manual ON commands, confirming the reliability of the IoT control interface across multiple platforms. Compared with traditional automatic feeders, the developed prototype offers more precise nozzle orientation, flexible remote operation, and an adaptive feed-dispersion pattern. The integration of actuation mechanisms with IoT-based control provides a smarter and more efficient automation solution suitable for small- to medium-scale aquaculture systems. Overall, the findings demonstrate that the proposed design delivers superior distribution performance and operational flexibility, representing a meaningful advancement over existing feeding technologies.
Co-Authors Abigunto Amoro Adji Adinegoro, Faisal Aina Latifa Riyana Putri Alyandra Gusman Amrullah Ibrahim Annisa Bhikuning Chalilullah Rangkuti Christina Eni Pujiastuti Endi Jumairi Fayza Nayla Riyana Putri Joko Riyono Larasati Putri Muhammad Faishal Ammar Nanang Ruhiyat Sandi Apriandi Setiawan Sentot Novianto Sofia Debi Puspa Suhaila Binti Hussain Tono Sukarnoto Yustika Agustin