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All Journal EPIC : Journal of Electrical Power, Instrumentation and Control Jurnal Inkofar
Ulpen Hiermy
Sekolah Tinggi Teknologi Bina Tunggal
Electrical & Electronics Engineering

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Rancang Bangun Alat Pengering Produk Pertanian Berbasis Tenaga Surya dengan Kontrol Suhu Otomatis dan Suplai Udara Panas Berbasis Internet of Things Erdo Adriosa; I Putu Hikariantara; Adiman; Ulpen Hiermy; Hendriyanto
EPIC Journal of Electrical Power Instrumentation and Control Vol 8 No 2 (2025): EPIC
Publisher : Universitas Pamulang, Prodi teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/epic.v8i2.58711

Abstract

Proses pengeringan konvensional yang mengandalkan sinar matahari memiliki keterbatasan pada ketergantungan cuaca dan risiko kontaminasi, yang merugikan kualitas pascapanen petani. Penelitian ini bertujuan merancang dan mengembangkan sistem pengering hasil pertanian otomatis berbasis tenaga surya (smart solar dryer) berkapasitas 50–60 kg yang terintegrasi dengan pemanas resistif cadangan. Metode penelitian melibatkan implementasi mikrokontroler ESP32 sebagai unit kendali utama, sensor DHT11 untuk pemantauan suhu dan kelembaban, serta sistem forced-convection berbasis blower untuk distribusi panas yang merata. Sistem ini juga mengintegrasikan teknologi Internet of Things (IoT) melalui platform Blynk untuk pemantauan dan kendali jarak jauh secara real-time. Pengujian dilakukan pada komoditas sayuran kangkung, bayam, dan sawi untuk mengukur tingkat penyusutan bobot dan performa termal ruang pengering. Hasil penelitian menunjukkan bahwa sistem mampu menjaga kestabilan suhu otomatis pada rentang 50–60°C dengan akurasi yang konsisten meskipun kondisi cuaca berfluktuasi. Pemanas resistif terbukti efektif mempertahankan suhu saat radiasi matahari menurun, sementara sistem forced-convection mempercepat evaporasi dan memastikan keseragaman hasil pengeringan. Integrasi IoT melalui Blynk menunjukkan performa jaringan yang andal dalam transmisi data sensor. Disimpulkan bahwa prototipe ini memberikan solusi teknologi tepat guna yang efisien bagi UMKM pertanian untuk meningkatkan kualitas produk dan kemandirian energi di wilayah tropis.
COOLING LOAD-BASED RETROFITTING OF BRIDGE AIR CONDITIONING SYSTEM TO IMPROVE THERMAL COMFORT AND OPERATIONAL SAFETY ON TB. ANANTA SESA 1 Windy Jayusman; I Putu Hikariantara; Ulpen Hiermy; Doni Suseno; Mochammad Zoehry
INKOFAR Vol. 10 No. 1 (2026)
Publisher : Politeknik META Industri Cikarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Background The bridge compartment of a vessel serves as the primary operational area where navigation and monitoring activities are conducted continuously. Maintaining an adequate thermal environment with in this space is essential to ensure operator comfort, concentration, and operational safety Purpose This study aimed to evaluate the cooling load requirements of the bridge compartment onboard TB. Ananta Sesa 1 and assess the effectiveness of an air conditioning retrofitting strategy in improving thermal comfort conditions Methodology The research employed a field observation approach combined with cooling load calculations using the Cooling Load Temperature Difference (CLTD) method. Findings Internal heat gains from occupants and navigation equipment, as well as external heat gains from solar radiation, wall and roof heat transfer, and air infiltration, were considered in the analysis. The results indicated that the total cooling load of the bridge compartment reached 15,900 BTU/h, exceeding the capacity of the existing 1 PK air conditioning unit rated at 9,000 BTU/h. To address this deficiency, the existing system was replaced with a 1.5 PK split air conditioning unit utilizing R32 refrigerant. Performance testing demonstrated that the retrofitted system reduced the indoor temperature from 36°C to 25.5°C within 60 minutes of operation. The measured relative humidity remained at approximately 55%, which is consistent with thermal comfort recommendations provided by ASHRAE Standard 55 Implications These findings indicate that the retrofitting strategy successfully improved the cooling performance of the bridge compartment and provided thermal conditions that support operator comfort and safe vessel operation Originality The results may serve as a practical reference for cooling system evaluation and retrofit planning in similar marine applications.
Co-Authors Adiman Doni Suseno Erdo Adriosa Hendriyanto I Putu Hikariantara Mochammad Zoehry Windy Jayusman