Utilization of Solar Power Plants for Coffee Roasters

Abstract

Electricity generation generally uses fossil fuels whose supplies are dwindling in nature, so they must use new and renewable energy such as solar, wind and so on. Rapid technological advances in the field of power generation, such as Solar Power Plants, make it easier in various fields, especially the coffee sector. The purpose of this study was to design a Solar Power Generation system that is used in coffee roasters and then conduct tests to determine the power and time used to roast coffee beans weighing 2 kg. Based on this research, the system in the roasting circuit and process has been successfully created and works well so that the roasted coffee beans can be cooked evenly using a DC motor as a stirrer with specifications of 12 Volt 60 Watt and heating element 220 Volt 300 Watt. Coffee beans weighing ± 2 kg with a maximum temperature of 165 C, require a duration of roasting time of ± 50 minutes. The results of testing the utilization of Solar Power in this coffee roaster are influenced by the temperature produced by the heating element, the weight of the coffee and the way of stirring.