Protecting hospital power

The standby power system at Halifax Health helps ensure emergency power safety at the medical center in east central Florida.

11/01/2009


View the full story, including all images and figures in our monthly digital edition

 

Halifax Health, located in Daytona Beach, Fla., is the largest medical center in East Central Florida. The center has 944 beds and 500 physicians representing 46 specialties. Founded in 1928, the hospital has continuously expanded over the decades and recently added the new, 10-story France Tower to its campus for inpatient and emergency treatment. For the addition, the administration selected a 4.5 MW MTU Onsite Energy standby power system from Florida Detroit Diesel-Allison, the local distributor for MTU Onsite Energy.

 

“Summer thunderstorms regularly wreak havoc with our local utility due to lightning strikes, but these outages tend to be of short duration,” said James Sawyer, electrical supervisor, Halifax Health. “However, there's always the threat of bigger storms. In 2004, Hurricane Charley was a Category 4 storm that took out the entire grid, forcing us to run on standby power systems in older parts of the medical center campus from midnight until about 6 a.m. the next day.”

 

Previously installed standby power systems were sized to provide emergency power only for operating rooms, intensive care units, and egress lighting to meet life-safety codes. The older standby generators weren't sized with the capacity to power the HVAC systems. The hospital officials sized the MTU Onsite Energy system to supply all loads in the new tower, including HVAC, in accordance with Florida Building Code.

 

Chapter 419 of the Florida Building Code states that “All occupied patient care areas and patient support areas shall be supplied with sufficient HVAC as determined by the facility to ensure the health and safety and well-being of all patients and staff during and immediately following as disaster…as determined by the facility, these selected HVAC systems and their associated support equipment such as control air compressor essential to the maintenance of the occupied patient and patient support area(s) shall receive their power from the emergency power supply system.”

 

The power system in the France Tower consists of three 1,500 kW generator sets operating in parallel for a total capacity of 4.5 MW. The generator sets are powered by the EPA Tier 2 MTU 12V4000 engine. As required by NEC Article 517, the electrical loads are prioritized and segmented and include up to eight automatic transfer switches per generator set. If an outage occurs, all three generator sets start and assume the load when they are up to speed, which takes roughly 10 sec. If the control system detects that only two generator sets are needed to supply the loads, one generator will shut down in order to economize fuel. Supplying the three generator sets are two 30,000-gal. fuel tanks. When completely full, they hold enough fuel to operate the standby power system for more than four days at a 75% load.

 

Throughout the medical campus are various UPS systems to supply power immediately after an outage while the standby generators start. The largest UPS systems supply the medical center's data center and operating theaters. In addition to the standby power system and multiple UPS systems, Halifax Health has dual utility feeds from separate substations in case there is a transmission problem with just one line.

 

The hospital has made decisions that will help ensure that all the critical loads in the medical center are backed up with reliable standby power, no matter what Florida weather sends their way.

 

 

 

Acknowledgements

Informaton provided by MTU Onsite Energy.

 

 

AT A GLANCE

The recently completed 10-story France Tower at the Halifax Health center selected a 4.5 MW MTU Onsite Energy standby power system from Florida Detroit Diesel-Allison, the local distributor for MTU Onsite Energy.

 

The previous standby power systems were sized to provide emergency power for operating rooms, intensive care units, and egress lighting. However, the older generators were not sized with the capacity to power the HVAC systems. Current codes require patient evacuation if an area is without air conditioning for longer than 36 hours.

 

The power system consists of three 1,500 kW generator sets operating in parallel for a total capacity of 4.5 MW. The generator sets are powered by the EPA Tier 2 MTU 12V4000 engine. The electrical loads are prioritized and segmented by up to eight automatic transfer switches per generator set.



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
Strategic outsourcing delivers efficiency; Sleeve bearing clearance; Causes of water hammer; Improve air quality; Maintenance safety; GAMS preview
World-class maintenance: The three keys to success - Deploy people, process and technology; 2016 Lubrication Guide; Why hydraulic systems get hot
Your leaks start here: Take a disciplined approach with your hydraulic system; U.S. presence at Hannover Messe a rousing success
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Applying network redundancy; Overcoming loop tuning challenges; PID control and networks
Putting COPS into context; Designing medium-voltage electrical systems; Planning and designing resilient, efficient data centers; The nine steps of designing generator fuel systems
Package boilers; Natural gas infrared heating; Thermal treasure; Standby generation; Natural gas supports green efforts

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role that compressed air plays in manufacturing plants.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me