Chapter 3.2 - Test cycles and weighting factors to be applied
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Statutory Documents - IMO Publications and Documents - Circulars - Marine Environment Protection Committee - MEPC.1/Circular.540 – Approved Unified Interpretations to MARPOL Annex VI and the NOx Technical Code – (24 November 2006) - Annex - Draft Unified Interpretations to MARPOL Annex VI and the NOx Technical Code and Related Implementation Issues - The NOx Technical Code - Chapter 3.2 - Test cycles and weighting factors to be applied

Chapter 3.2 - Test cycles and weighting factors to be applied

 Chapter 3.2.3 reads as follows:

 For variable-pitch propeller sets, test cycle E2 shall be applied in accordance with table 1.

Test cycle for "Constant-speed main propulsion" application (including diesel-electric drive and variable-pitch propeller installations)

Test cycle type E2 Speed 100% 100% 100% 100%
Power 100% 75% 50% 25%
Weighting
factor 		0.2 0.5 0.15 0.15

 Interpretation:

 For application of the term “variable-pitch propeller sets” it shall be interpreted that the E2 cycle is applicable to any propulsion engine coupled to a variable pitch propeller, irrespective of whether the system operates at constant speed or variable speeds.

Parent topic: The NOx Technical Code
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