Paper Title
Safety Evaluation of Solid Oxide Fuel Cell Biogas Power Plant

Abstract
Malaysia is one of the largest producers of palm oil in the world, alongside Indonesia. Ensuring occupational safety and health is a priority for both employers and employees to avoid accidents. This study aimed to evaluate the safety of biogas power plants with SOFC technology, by identifying hazards and conducting risk assessments. The objectives of the study were to assess risk using the F&EI method, which calculates the risk of fire and explosion accidents only and to propose controls to reduce risk using the HAZOP and FTA methods. Finally, standard safety operating procedures were developed for biogas power plants with SOFC based on the results of the F&EI, HAZOP, and FTA assessments. The F&EI method identified the anaerobic digesters (AD-101) and storage tanks (T-201) as the highest risk areas with a value of 231 and 171, respectively. A P&ID was used for the HAZOP study and was constructed after the HAZOP was completed. The FTA study focused primarily on the risk of 'fire', with a probability of 3.66 x 10-5. Several measures were proposed to minimize the likelihood of a fire. The standard safety operating procedures, based on the HAZOP and FTA results, were divided into three processes: before the operation, during operation, and maintenance. Further studies into risk identification and safe working methods are needed to improve efficiency. Keywords - Solid Oxide Fuel Cell, Biogas Plant, Hazard Identification and Risk Assessment, Fire and Explosion, Standard Operating Procedure.