1278516991595a1267106724867-brochure-o-wartsila-solutions-2015

ELECTRICAL & AUTOMATION• Wärtsilä Direct Electric HeatingDEH is a cost efficient and environmentally sustainable flow assurancemethod that replaces the use of chemicals.The presence of wax and hydrates in subsea flow lines is a majorconcern in the offshore industry. Wärtsilä DEH is based on using thethermally insulated flow line as part of the electric circuit, and allowingthe electrical losses to heat the contents of the pipe.Direct Electric Heating is today a mature technology that hasbeen used for more than 15 years in Norwegian and West Africaninstallations. Wärtsilä has participated in the development of WärtsiläDEH since the nineties, and today undertakes the design and supply ofthe complete topside Wärtsilä Direct Electric Heating package.Wärtsilä Direct Electric Heating has been used for flow lines of up to42 km, and with a power requirement of up to 12 MW.The topside package comprises tailor made medium voltagecomponents that control the current in the flow line, convert the load28