Class 1 (Chief Engineer) Engineering Management 📅 Dec 2022

Exam Question

Optimization of hull forms is recognized as means to improve energy efficiency of ships. Discuss scope and impact of optimization of the following in improving energy efficiency of ship:

(i) Forebody optimization

(ii) Aftbody optimization

(iii) Twin skeg design

Reference Answer

### Introduction
Optimization of a ship's hull form is a fundamental aspect of naval architecture aimed at improving energy efficiency by reducing hydrodynamic resistance. Total resistance is a combination of frictional resistance, wave-making resistance, and form drag. Effective optimization targets these components, leading to substantial reductions in required propulsion power and, consequently, lower fuel consumption and emissions. This discussion will cover the scope and impact of forebody, aftbody, and twin skeg designs in achieving these efficiencies, in line with regulatory drivers like the Energy Efficiency Design Index (EEDI) and Carbon Intensity Indicator (CII).
### (i) Forebody Optimization
**1. Primary Goal:**

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