Mechanical Engineering Optimization of Solar-Wind Hybrid Refrigeration Systems for Artisanal Fisheries

Abstract

This research develops and evaluates an integrated mechanical engineering design framework for solar-wind hybrid refrigeration systems optimized for small-scale fishing vessels, combining life cycle environmental assessment with techno-economic feasibility analysis to support sustainable post-harvest value chain development. Employing mixed-methods research across seven months, through laboratory testing, and participatory evaluation phases. The optimized system design achieves 2.8 coefficient of performance, reduces operational carbon footprint by 87% compared to ice-based preservation (4.2 vs. 32.1 kg CO₂eq per fishing trip), delivers 3.2-year payback period through ice cost elimination (6.5 million IDR annually) and premium fish pricing (18% higher revenue), while maintaining fish quality preservation extending shelf life from 36 to 84 hours post-harvest. Multi-objective optimization balancing energy efficiency, refrigeration capacity, system reliability, and economic viability demonstrates that appropriately-sized hybrid configurations can meet small-scale fishing operational requirements under Indonesian coastal conditions. This research contributes validated mechanical design methodologies, life cycle assessment frameworks for marine renewable systems, and evidence-based investment models supporting sustainable fisheries development policies addressing climate mitigation and fisher welfare objectives simultaneously.