Diesel generator solution for NUI, gas platform – Zone 2 environment

Dale was asked to provide diesel generators for a new offshore gas platform. The generators would be situated in a Zone 2 environment where explosive gases could occur. Challenges included:

• Limited deck space

• Platform crane max lift weight – 19 tonnes

• Design had to be A60 fire rated

• Noise emission limits

• Minimal service visits

• 27 years expected lifespan

• Harsh saline marine environment

Dale’s Solution

• 1 x 200 kW generator and 1 x emergency 200 kW generator

• Each element was designed to manage the overall finished weight and not exceed the offshore crane’s limitations

•  Materials were integrated to extend the life of the equipment

• All components were fully bunded

• The enclosure and pipework were constructed from 316L stainless steel

Our Results

• Lifting and support package certified to DNV GL

• Enclosure with A60 passive fire rating

• Max averaged noise emission 85dBa @1M

• Installation by Dale Power Solutions’ team of CompEx qualified electricians under the ATEX Directive

• Extended maintenance intervals, up to 2000 hours

• Compliant to ATEX Directive 2014/34/EU and suitable for application in Zone-2 hazardous area

• Generator base frame certified to DNV GL ST-E273

• Water cooled heat exchanger. Exhaust gases achieved the T3 Temperature Class below 200℃