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All Journal Jurnal Litbang Kota Pekalongan Teknika Sains : Jurnal Ilmu Teknik Jurnal Pengabdian KOLABORATIF
Satria Pinandita
Universitas Semarang
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Environmental Science Mechanical Engineering Public Health Social Sciences Transportation

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STUDI PENANGANAN GENANGAN BANJIR DAN ROB SUNGAI MEDURI-BREMI KOTA PEKALONGAN Edy Susilo; Hani Purwanti; Satria Pinandita
JURNAL LITBANG KOTA PEKALONGAN Vol. 20 No. 2 (2022)
Publisher : Badan Perencanaan Pembangunan, Penelitian dan Pengembangan Daerah (Bappeda) Kota Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54911/litbang.v20i2.224

Abstract

Floods and droughts are a problem in most parts of Indonesia. The cause is suspected to be due to changes in land use from an open green land to land covered by buildings. As a result, water infiltration into the soil decreases, and runoff increases. This condition will be overcome by increasing the infiltration of water into the soil. Various attempts have been made using recharge wells and biopores. However, due to the small capacity of the infiltration equipment, it has not been able to overcome the problem of inundation and flooding. Horizontal Recharge Pipe (HRP) with perforated walls has a very large infiltration. The watersheds of the Meduri and Bremi Rivers, which are located in the western part of Pekalongan, are areas that frequently experience inundation and flooding. The results of the analysis of rain data showed that the planned return periods of 2 years, 5 years, 10 years, 25 years, and 50 years respectively for the Meduri watershed were 106.33 mm, 146.98 mm, 172.05 mm, 200.40 mm, and 219.73 mm. As for the Bremi DAS, it is 104.84 mm, 147.62 mm, 173.11 mm, 200.38 mm, 217.98 mm, 233.47 mm, and 247.93 mm. The design flood is calculated using the Gama-1, ITB-1, ITB-2, and Nakayasu methods. With a flow coefficient of 0.455 for the Meduri watershed and 0.439 for the Bremi watershed, the flood discharge plan for the Gama-1 method with return periods of 2 years, 5 years, 10 years, 25 years, and 50 years respectively for the Meduri River is 34.36 m3/sec, 47.49 m3/s, 55.59 m3/s, 64.75 m3/s, and 71.00 m3/s. While the planned discharge of the Gama-1 method for the Bremi River is 49.97 m3/s, 70.36 m3/s, 82.51 m3/s, 95.51 m3/s, 103.61 m3/s, 111.28 m3/s, and 118.17 m3/s. In the LWL condition, it does not rain, and the capacity of the river is sufficient while in the LWL condition and it rains some of the river sections overflows. There are several options for handling this flood, namely A. Motion weirs, ponds, and parapet normalization; B. Dams, ponds, parapet normalization, pumps, and HRP; C. Normalization, parapet, and HRP. Of the three options, it is recommended to choose option C depending on budget availability with the following considerations: low cost, environmentally friendly, increasing groundwater availability, reducing land subsidence, and preventing seawater intrusion, as well as lower operational costs.  Keywords: Flood, horizontal recharge pipe, reduction, pump, land use change
Analisa Efisiensi Alat Pendingin Bermesin Dual Energi Untuk Penanganan Pasca Panen Satria Pinandita; Supari Supari; Diah Aryati Puji Lestari; Andhy Tri Adriyanto; Jonathan Anugrah Lase
TEKNIKA SAINS Vol 8, No 1 (2023): TEKNIKA SAINS
Publisher : Universitas Sang Bumi Ruwa Jurai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24967/teksis.v8i1.2132

Abstract

Energi listrik dikatakan sebagai kebutuhan pokok bagi masyarakat pada zaman globalisasi sekarang. Akan tetapi tingkat kebutuhan Energi listrik masyarakat yang semakin tinggi ini nampaknya menimbulkan berbagai permasalahan baru seperti efisiensi biaya tagihan listrik. Pada penelitian ini bertujuan menganalisa efisiensi generator flywheel dual energi berbeban. Alat dan bahan yang dibutuhkan dalam penelitian ini : 2 buah Generator 1kW, Motor listrik 3 phase 1 Hp, Inverter 220 V To 380 V, Automatic Transfer Switch (ATS), Flywheel 60 Kg, Fanbelt, dan Pulley. Hasil dari penelitian ini yaitu pembangkit dual energi terdiri dari motor listrik sebagai penggerak dengan spesifikasi daya 1 HP, tegangan 380 V, arus 2 A, dan kecepatan putaran 1390 rpm,  flywheel yang berfungsi sebagai penyimpanan energi dengan massa 60 kg dan diameter 50 cm dan generator berfungsi sebagai penghasil energi listrik dengan spesifikasi  daya 1 kW, tegangan 220 volt, arus 4,8 A, dan kecepatan putaran 2890 rpm. Generator dapat menghasilkan tegangan sesuai spesifik 226 volt dengan menggunakan diameter pulley pada flywheel sebesar 50 cm. Selain itu, generator dapat menghasilkan momen inersia sebesar 7,5 Kg m2. Daya yang dapat dihasilkan generator dalam kondisi stabil atau tidak ada perubahan adalah sebesar 2.990 Watt atau 2,9 kW dengan efisiensi dari generator dual energi sebesar 20%, dengan beban.
Pelatihan Instalasi dan Troubleshooting Sistem Audio untuk Pengurus Mushola Aljabbar Desa Tawangrejo Winong Kabupaten Pati Fahrudin Ahmad; Supari; Agus Margiantono; Satria Pinandita
Jurnal Pengabdian KOLABORATIF Vol. 4 No. 1 (2026): January
Publisher : Faculty of Engineering, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/kolaboratif.v4i1.13262

Abstract

This community service program was conducted to enhance the technical abilities of the management team of Mushola Aljabbar, Tawangrejo, Pati regency, in operating and maintaining the audio system used for religious and social activities. The main problems identified include limited knowledge of audio installation, insufficient understanding of maintenance procedures, and difficulties in handling minor technical issues. The program employed a participatory training method that consisted of theoretical sessions, hands-on installation practice, maintenance activities, and troubleshooting simulations. Participants also took pre-test and post-test evaluations. The results indicate a significant improvement in participants’ competencies, demonstrated by an average score increase of 39.16%. Participants were able to perform basic installation, conduct routine maintenance, and independently solve common technical problems. This program had a positive impact on improving audio quality in the mushola and increasing the management’s self-reliance. Continuous training is recommended to ensure adaptability to technological developments in audio systems.
Pengembangan Kemandirian Pengurus Musholla SMA Negeri 1 Jakenan Pati melalui Pelatihan Instalasi Audio Fahrudin Ahmad; Supari Supari; Agus Margiantono; Satria Pinandita
Jurnal Pengabdian KOLABORATIF Vol. 4 No. 2 (2026): July
Publisher : Faculty of Engineering, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/kolaboratif.v4i2.13875

Abstract

Sub-optimal management of musholla audio systems is often caused by limited technical competence among administrators and the absence of structured standard operating procedures (SOPs). This Community Service program aimed to enhance the self-reliance of musholla administrators at SMA Negeri 1 Jakenan Pati through practice-based training in audio installation and maintenance. The implementation methods included needs-assessment surveys, technical planning, hands-on training, pre- and post-test evaluations, and the development of SOPs for installation, troubleshooting, and periodic maintenance. A total of 20 participants, consisting of musholla administrators and school technical staff, took part in the program. Evaluation results showed an improvement in scores from a range of 40–70 in the pre-test to 62–95 in the post-test. In addition, the quality of the audio installation improved through cable reorganization, signal level adjustment, and equalizer tuning according to room characteristics. The program also produced practical outputs in the form of training modules and operational SOPs. Overall, the results indicate that practice-based training is effective in enhancing technical competence while simultaneously fostering partner self-reliance in managing musholla audio systems.
Co-Authors Agus MARGIANTONO Andhy Tri Adriyanto Dr. Supari Edy Susilo Fahrudin Ahmad Jonathan Anugrah Lase Lestari, Diah Aryati Puji Purwanti, Hani Supari Supari