Page 13 - North American Clean Energy May/June 2019 Issue

Due to the pressure from the warm air, it can enter every unsealed area. It is easy to underestimate just how much HCI develops during a combustion: to put it in perspective, for every 1 kg PVC that is burned, 1.2 liters of acid develops.
Consequences for Technical Equipment and Installations
Corrosion erodes metals. e speed
at which this occurs depends on the contamination level, humidity level, and type of metal. In 1996, the U.S. Department of Energy conducted a study that found that the failure rate of equipment increases dramatically as contamination levels increase. Even low levels of contamination will increase the failure probability to a critical level. If the contamination is not addressed, the failure rate continues to rise.
Contingency Plan Measures
Successfully building a well-functioning contingency plan for serious incidents requires identifying the appropriate internal stakeholders. While they may
vary from company to company, they
can include individuals from HSEQ, site- service, engineering, and risk management.
e next step should be to identify a specialized and trusted recovery partner. It is important to address impacted equipment as soon as possible after an incident, to allow for optimal probability of restoration. Your recovery partner
will evaluate the secondary damage and conduct the proper chloride analyses
to assess the contamination levels
from HCI, as well as determine if the contamination has spread. For certain types of equipment, immediate and simple intervention can signi cantly reduce the cost for recovery or replacement. e recovery engineer on site will prepare a corrosion risk report that can then become a recovery plan, which will include not only your trusted partner, but often operators, service organization, suppliers, and OEM’s.
Recovery of technical equipment is often times faster, less costly, and a more environmentally sustainable solution than the replacement of equipment. For more than 35 years, restoration methods have been proven to be extremely reliable; they are approved by several certi cation agencies.
As mentioned earlier, many corrosive substances develop during combustion
of materials. It is therefore important that the recovery engineer be fully aware of this risk during the inspection of the WTG. To determine the need for further analysis of corrosion risk, the combusted materials and extinguished agents must be taken into consideration. If this is evaluated as a speci c risk, the recovery engineer must take surface samples for lab analysis.
Replacement of certain components may be feasible - your trusted partner will be your primary source of information
for the next steps. After a contamination event, the recovery percentage goal is to achieve 100 percent reliability of the equipment in question. Having a well-functioning contingency plan in place allows restoration specialists to be on site that much sooner after an incident, resulting in a higher likelihood of equipment being restored, reductions in down time, and lower overall costs.
Hans Christian Sørensen is a Sales Manager for AREPA in the Silkeborg, Denmark o ce. With nearly 15 years of experience in the recovery industry for technical equipment and installations, Hans Christian evaluates the value of preparedness and contingency planning, with a focus on the energy sector. AREPA’s global team has over 35 years of experience providing comprehensive recovery solutions following property loss to critical equipment and systems.
AREPA /// www.arepa.com
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North American Clean Energy
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