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Table 2 Overview of the updated factor formulas

From: Benchmarking bulkers delivered between 2010 and 2016, identifying the effect of the EEDI introduction

Factor (old eq. nr.) (source)

New Formula

EEDI (Simplified) (2) ≥ 10.000 DWT

(IMO 2012)

\( \frac{\left(1.025\ast \sum {P}_{MEi}+250\right)}{DWT\ast {V}_{design}} \) (12)

EEDI (Simplified) (2) < 10.000 DWT

(IMO 2012)

\( \frac{\left(1.05\sum {P}_{MEi}\right)}{DWT\ast {V}_{design}} \) (13)

Power Ratio (4)

∑PMEi (14)

Block Coefficient (5) (Watson 1998)

\( 0.70+\frac{1}{8}\ast \arctan \left(\frac{23-100 Fn}{4}\right) \) (15)

Lightweight (LDT) Ratio (6)

\( \frac{C_b\ast L\ast B\ast T\ast \rho - DWT}{C_b\ast L\ast B\ast T\ast \rho } \) (16)

Area to volume ratio (10)

\( \frac{1.7\ast L\ast T+\nabla /T}{\sqrt{\nabla \ast L}} \) (17)