Rosemount Analytical continues to assist preservation of Civil War sub

North Irvine, Calif. - In 1864, the H.L. Hunley, a Civil War submarine and the first ship capable of maneuvering completely underwater, sank off the coast of South Carolina, while returning from its first mission. Now, after over 135 years at the bottom of the Atlantic, one of the most sought-after artifacts in the history of naval warfare has been raised, and is being restored.

12/20/2001


North Irvine, Calif. - In 1864, the H.L. Hunley , a Civil War submarine and the first ship capable of maneuvering completely underwater, sank off the coast of South Carolina, while returning from its first mission. Now, after over 135 years at the bottom of the Atlantic, one of the most sought-after artifacts in the history of naval warfare has been raised, and is being restored.

The Rosemount Analytical division of Emerson Process Management (Austin. Tex.) has been is assisting this monumental undertaking. The ruggedness and reliability of the firm's products, combined with Rosemount's analytical expertise, resulted in its being selected to provide sensors and analyzers for the restoration and preservation of the H.L. Hunley. Phase one of the restoration project was recently completed, and phase two is expected to begin in January 2002.

After the delicate wooden submersible was raised and moved from the sea, Rosemount Analytical devices began to be used during the preservation process to monitor the Hunley's conductivity, pH/ORP (oxidation reduction potential), and dissolved oxygen levels. The first phase of the restoration project included the raising the sub, and the excavation of artifacts and the remains of the crewmen.

The sub has now been kept for approximately 15 months in a large tank of water, which is being monitored with Rosemount Analytical instruments. During phase two, the chloride-removal process will begin, which will prevent the sub from corroding, rusting or deteriorating. One step in that process involves immersing the sub in a large tank filled with an electrolyte solution of water and sodium hydroxide, which will draw the chlorides out of the metal.

During this restoration project, the analyzers continue to be used to monitor pH/ORP, conductivity and dissolved oxygen in the sub's storage tank. 'Rosemount's equipment allow us to reliably monitor the electrolyte solution, which is critical to the success of the Hunley restoration,' says Dr. Robert Neyland, Hunley project director and underwater archaeologist from the Naval Historical Center. 'Without this sensor data, it would be impossible for us to maintain a proper environment for the chloride removal.'

Davis and Floyd and C.R. Hipp Construction Co., a division of Encompass Services Corp., in conjunction with the Friends of the Hunley Inc., awarded the instrumentation contract to Rosemount based on the durability of its sensors and analyzers. Rosemount sensors supplied for the Hunley project are housed in ruggedized cowlings to prevent damage to the electrodes. 'The reliability and rugged design of the Rosemount sensors are critical to the project,' says Al Hitchcock, C.R. Hipp's president. 'This durability makes them well-suited for this type of critical operating environment.'

Built for the Confederate Navy in 1863, the H.L. Hunley was plagued with disaster. The sub sank twice during testing with all hands onboard, and then sank a third and final time as it was returning from its first mission. The Hunley was re-discovered in 1995.

Friends of the Hunley raised the sub on August 8, 2000, and in an extensive effort, is preserving the relic; honoring the crewmen aboard the ill-fated vessel with a proper burial; and restoring the sub in preparation for display at the Charleston Museum.





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Robotic safety, collaboration, standards; DCS migration tips; IT/OT convergence; 2017 Control Engineering Salary and Career Survey
Integrated mobility; Artificial intelligence; Predictive motion control; Sensors and control system inputs; Asset Management; Cybersecurity
Big Data and IIoT value; Monitoring Big Data; Robotics safety standards and programming; Learning about PID
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This article collection contains several articles on how automation and controls are helping human-machine interface (HMI) hardware and software advance.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Big Data and bigger solutions; Tablet technologies; SCADA developments
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me