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MJW PROJECTS IN THE NEWS

MJW Upgrades HVAC System at Georgia Jobs Corps Center // July 2018

Students preparing for careers in heating, ventilation and air conditioning at the Brunswick (Ga.) Job Corps Center are getting some up-close insight into what a professional HVAC installation looks like.

Management & Training Corporation, which manages the Brunswick center for the U.S. Department of Labor, has chosen MJW Consolidated to install two new chillers and perform an extensive upgrade of the HVAC control system. The center offers no-cost education and technical training to low-income young people ages 16 to 24 in a variety of trades, including HVAC, facilities maintenance, electrical, plumbing, painting, landscaping, security and health care careers.

Built in the 1940s as part of a U.S. Navy base, the building that houses the Brunswick Job Corps Center was cooled by an outdated chiller and a control system that has made it difficult for the facility management team to provide a comfortable learning environment with uniform temperature and humidity.

One part of the upgrade project, which began with a thorough system assessment, was replacement of the 270-ton main chiller with a modern, more efficient unit that will save energy, lower costs and increase comfort. In addition, MJW replaced a smaller chiller unit for the facility’s gymnasium.

Another key aspect of the project was an upgrade of the control system, which had relied on pneumatic lines and compressors to regulate the air flow into various sections of the structure. The old system was prone to failures, difficult to monitor and unable to provide sufficient control for varied conditions in different parts of the building.

“The new control panel and the digital controls at each of the air handler control points — more than 200 in all — allow much closer monitoring and will alert the building maintenance team of issues before they become bigger problems,” said Ralph Harrison, MJW project manager.

The entire scope of work, from evaluating each of the segmented air handling system components for replacement or continued service, to setting, piping up and commissioning the large chillers, was self-performed by the MJW’s experienced team that worked closely with the client team to provide an efficient and reliable system that will support the Job Corps’ important mission for many years to come.

GA Job Corps

 

 

 

 

 


MARATHON DOCK PIPING UPGRADES // June 2018

MJW Consolidated recently completed a project for Marathon Petroleum Corporation in Jacksonville Florida. This was a multi-phased project beginning in October 2016 and completing in March of 2018. MJW utilized the services of our Fire Protection, Fire Alarm, Civil, Structural, Mechanical, and Steel Fabrication groups on this project.

The scope of work was to replace four existing 16” fuel lines and one 16” fire line with pre-fabricated supports on a 360 LF long fuel unloading dock on St. John’s River along with two concrete containment slabs, multiple concrete foundations and cross over stairs on the shore.

In lieu of working over water, our approach to this challenging project was to fabricate each 360LF long pipe section on land, on top of 17 temporary heavy duty neoprene roller supports, and pull it to its final place on the dock using a tugger.  Once the new piping was in place, the tie-ins to the existing piping on the dock and on land were completed during a 15 day outage. After the tie-ins were made and hydrostatic testing completed, the existing 16” fuel lines were cleaned and removed from the dock. Utilizing this approach, we minimized the impact on Marathon's day-to-day operations while at the same time abating the risks of environmental contamination of the St. John's River since the majority of welding, sand blasting, painting, and hydro-testing work was performed in a controlled environment on land.  

Despite many scheduling challenges due to the weather as well as the requirement to accommodate frequent fuel tanker offloading activities on this active terminal, the largest in NE Florida, the project was completed on budget, ahead of schedule and without any environmental issues or recordable injuries.  As a result, Marathon awarded MJW a perfect score on their Contractor Project Scorecard for Safety, Environmental, Planning, Schedule, Quality, Equipment and Project Management performance. 

           Marathon 2     Marathon Pic 1