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Evaluasi kinerja pengering hybrid berbasis pemanas listrik dan tungku biomassa untuk pengeringan biji kakao Harmen; Prayitno, Hadi; Fitriawan, Helmy; Irsyad, Muhammad; Amrul; Yonanda, Ahmad
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/mdj4sj85

Abstract

Pengering hybrid yang digunakan dalam penelitian ini memanfaatkan sumber panas dari pemanas listrik berbasis energi mikrohidro (PLTMH) dan tungku biomassa menggunakan limbah kayu jati. Penelitian bertujuan mengevaluasi kinerja pengeringan biji kakao dengan sistem hybrid. Metode penelitian meliputi pengukuran temperatur udara masuk dan keluar, kecepatan aliran udara, massa biji kakao, serta kadar air akhir. Analisis dilakukan dengan menghitung energi masuk (Qin), energi terserap (Qout), dan energi hilang (Qloss) menggunakan persamaan termodinamika. Hasil penelitian menunjukkan konsumsi energi listrik sebesar 59.114,9 kJ dan biomassa limbah kayu jati sebesar 456.451 kJ. Energi yang masuk tercatat 26.469,9 kJ, energi terserap 6.534,1 kJ, sedangkan energi hilang mencapai 19.935,8 kJ, dengan panas keluar ruang pengering 9.266,4 kJ. Temuan ini memberikan informasi penting untuk meningkatkan efisiensi pengeringan tipe flat bed dryer pada biji kakao, sekaligus mendukung pengembangan metode pengeringan yang lebih optimal dan berkelanjutan.
EXPERIMENTAL STUDY OF PARAFFIN-BASED PCM THERMAL STABILITY AFTER REPEATED THERMAL CYCLES FOR ENERGY STORAGE APPLICATIONS Kurniawan, Dondi; Irsyad, Muhammad; Wiyono, Apri; Yonanda, Ahmad; Prabowo, Angga Darma; Kusuma, Ardika
Scientific Journal of Mechanical Engineering Kinematika Vol 11 No 1 (2026): SJME Kinematika June 2026
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v11i1.836

Abstract

Paraffin-based phase change materials (PCMs) have great potential in thermal energy storage due to their ability to absorb and release energy during the freezing and melting processes. However, the stability of their thermal characteristics after undergoing repeated heating and cooling cycles remains a challenge for long-term applications. This study aims to evaluate the phase change temperature characteristics and latent heat capacity of paraffin after undergoing 0, 200, 400, and 600 repeated thermal cycles using Differential Scanning Calorimetry (DSC) and T-history tests. The test results show that despite a slight decrease in freezing, melting temperatures changes in chemical structure after a number of cycles, paraffin still maintains its capacity to absorb and release energy quite efficiently. The latent heat capacity decreased from 142.77 J/g to 126.02 J/g over 600 cycles during the melting process. However, during the freezing process, it increased from 139.25 J/g to 147.55 J/g. These findings provide a scientific basis for optimizing paraffin-based PCM for reliable and sustainable thermal energy storage applications.
Co-Authors A.Yudi Eka Risano Adawiyah, Robi'Atul Aditya Gunawan, Aditya Admiral, Randa Afriyanti, Liza Agus Saputro, Mohammad Alif Agus Solikhin, Agus Agus Sugiri, Agus Agus Sutarjo Ahmad Farhan, Ahmad Ahmad Yonanda Ahmad Yonanda Ahyuni Ahyuni Akbar, Amin Kurniawan Akhmad Qashlim, Akhmad Alifa, Alifia Zuhriatul Alviona Marsya Alwis Alwis Amrizal Amrizal Amrul Amrul Amrul Ananda, Sherly Andysah Putera Utama Siahaan Angga Darma Prabowo Aniswita Anshari, Muhammad Isa Anwar, Hasrul Apri Wiyono Ardelia, Adinda Abidah Asbanu, Govira Christiadora Assyarify, Hanif Aulia, Weko Indira Romanti Aziz, Qithfirul Azmi, Khairil Baehaqi Broer, Rizal Bukhori, Bukhori Chairiyati, Fauziah Chandra, Reski Mai Dafid Slamet Setiana Delifah, Nur Denik Agustito Desmaiani, Herda Dhany, Hanna Willa Dian Fadli, Dian Dwi, Nurdin Edi Tarigan, Tri Juli Elin Haerani Elliyana, Dessy Em Yunir, Em Eriyadi, Riko erman Balo, Asri Andrias H Fachry Abda El Rahman Fadhilah Syafria Fajri, Zidan Fakhira, Adzra Fauziyyah, Laila Nurul Febi Yanto Febriansyah, Wahyu Fitri Insani Fitri Wulandari Fitria Sulistyowati Fitriaty, Fitriaty Gusti, Siska Kurnia Hadi Prayitno Hadi Prayitno, Hadi Haida Fitri Hakim, Naufal Harmen Harmen, Harmen Haryanto Haryanto Hasan Basri Helmy Fitriawan Helviansyah, Try Hendrawan, Rezki Naufan HERU WAHYUDI Hery Dian Septama Iffa, Marwika Rifattul Iis Afrianty Irsyada, Amelia Irza Sukmana, Irza istiqomah istiqomah Iswati, Eni Jaelani, Alan Jasril Jasril Jasril Jasril Jayadi, Yusma Indah Jayawarsa, A.A. Ketut Jumriah Syam, Jumriah Syam Junaidi Junaidi Junidy, Muhammad Raihan Khairudin, Rizal Khairul Khirfatul Jannah Krismadinata Krismadinata, Krismadinata kurnia, fitra Kurniawan, Dondi Kusuma, Ardika Leni Marlina Lubis, Anggun Tri Utami BR. M, Musnaini M. Dyan Susila M. Haviz M. Ridho Ulya Martinus, Martinus Michel, Michel Misfa Susanto Muhamad Komarudin Muhammad Affandes Muhammad Arsan Jamili Muhammad Fikry Muliani, Sarifah Musafira Musafira Muthmainnah, Ami Chandra Nadhif, Muhammad Hanif Nafrizal Najmi, Risna Lailatun Najmuddin Abd Shafa Nalis, Amrizal Nashrul Hakiem Nasution, Rodiah Nazir, Alwis Nazruddin Safaat Nazruddin Safaat H Negara, Benny Sukma Niky Fetra, Niky Nugraha, M. Zein Farhan Nugraha, Yulian Nurlaila, Endang Pizaini Pizaini Pratama, Daffa Akbar Pratiwi, Trya Ayu Putri Ayuni, Desy R.S, Salsa Faradilla Rachmadi, Erfan Rafaelandri, Billy Rahmad Kurniawan Rahmad Kurniawan Raka Indra Lukmana Ramadhan, Muhammad Ilham Ramadhan, Syabani Ratna Sulistiyanti, Sri Retno Putri Lestari Reza Ramadhan, Reza Ridha, Afif Nabil Rijal Febriyantono, Muhammad Riszal, Akhmad Riszal, Akmad Rizal Adi Saputra Rudi Susanto Safitri, Jehan Salsabillah, Angelia E. Sardi, Hajra Sari, Tyasha Ayu Melynda Sarumpaet, Angela Setiawan, Ahmad Adi Sibawaihi Sibawaihi Silfia Hanani Silvy Amelia Sinaga, Jorfri Boike Sinaga, Jorfri Boyke Siti Mujiatun Siti Nurul Rofiqo Irwan Sofiyah, Wan Sophian, Ali Sri Rahayu Budiani Sri Sukaesih Sry Rosita Subhi, Yazid Abdullah Subuh Tugiono, Subuh Sugiman Sugiman Suharso Suharso Suharto Linuwih Sujadi, A.A. Sukma Noor Akbar Sumarni Sumarni Supono Surya Agustian SUTRIONO SUTRIONO Suwanto Sanjaya Syarli, Syarli Tambunan, Elisabet Tambunan, Toman Sony Tasnim Rahmat, Tasnim Titin Yulianti Triyadi, M Dico Uma, Yuli Choirul Vitriani, Yelfi Wahid Munawar Widiatama, Angga Jati Wiyanto - Yahya Mara Ardi Yani, Susmi Syahfrida Yefterson, Ridho Bayu Yogi, Muallim Supra Yosefa, Yessa Okta Yudianto Yudianto Yulian, Aji Muhammad Yuliani, Rika Yusra, Yusra Zainuddin, Ahmad Dennil Zakir, Supratman Zuhriyah, Indah Aminatus