The book presents the select proceedings of 5th International Conference on Mechanical Engineering (ICOME). ICOME is a series of international conference in mechanical engineering held every two years in Indonesia. The covered topics include aerodynamics and fluid mechanics, air conditioning and cooling system, turbomachinery and alternative fuels, modeling, simulation and optimization, thermodynamics and heat transfer, and combustion system. This book also covers material engineering, composite materials, biomaterials, fatigue and fracture, corrosion, tribology, and biomechanics. Given the contents, the book is useful for students, researchers, and professionals in the area of mechanical engineering and materials.