Rancang Bangun Alat Pengering Cengkeh Greenhouse Berbasis PLTS Dengan Pengendalian Suhu Dan Monitoring IoT

Abstract

Conventional clove drying still depends on weather conditions, making the drying duration difficult to control. This study aimed to design a greenhouse-based clove dryer powered by a Solar Power Generation System (PLTS) with temperature control using an ESP32 and to evaluate its performance compared with conventional drying. The system employed a DHT22 sensor, heater, circulation fan, exhaust fan, automatic sieve rack mechanism, PZEM-017, and ThingSpeak for Internet of Things (IoT)-based monitoring. Testing was conducted using 5 kg of fresh cloves with an initial moisture content of 70%. The results showed that the dryer reduced the moisture content to 12.5% within 32 hours or 3 days, while conventional drying required 40 hours or 4 days and resulted in a final moisture content of 12.9%. The proposed dryer reduced the drying time by approximately 20% and achieved the target moisture content, although temperature stability and heat distribution still require further optimization.