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In September 2008, Hurricane Ike flooded over one million square feet of University of Texas Medical Branch Galveston campus buildings to depths of six feet, interrupting and damaging electrical power, emergency generators, natural gas, chilled water, and municipal water and sewer. Submerged in seawater, the steam distribution system was a complete loss.
Affiliated Engineers, Inc. (AEI) supported UTMB recovery efforts with assessments helping to secure FEMA funding. The long-term opportunity created by Ike, however, has been to simultaneously optimize capital investment and operational spending with engineered resiliency and efficiency, to thrive as well as survive on this coastal island.
PRINTED ON 100% POST CONSUMER FIBER
Contact
Mark Lee, PE, LEED® APProject Leader for recovery, distribution, and building conversions 713.548.8910 [email protected]
Lynn Crawford, PEProject Leader for utility plants 713.548.8911 [email protected]
Jerry Schuett, PEAEI Energy and Utilities Market Leader 919.419.9802 [email protected]
Marcel Blanchard, CEM, CEPAssistant Vice President, Utility OperationsThe University of Texas Medical Branch at [email protected]
HurricaneForces the Issue
aeieng.com
Established in 1891, the University of Texas Medical Branch at Galveston is the oldest medical school west of the Mississippi. Covering 85 acres and supported by 13,000 employees, UTMB includes seven hospitals, a network of specialty clinics, numerous centers and institutes devoted to advanced research (Galveston National Laboratory among them), a medical library, and schools of nursing, health professions, and biomedical science, in addition to a medical school of 2500 students and 1000 faculty members.
All illustrations © Affiliated Engineers, Inc.
Beauregard Bryan, chairman of the University of Texas, Board of Regents Medical Committee, responds to the 1900 hurricane disaster.
Credit: UTMB Photos
aeieng.com
EnGINEERING Resiliency
WEST PLANT Hardening2016 scheduled completion
Adjacent to an existing 10,000-ton chiller plant, the new 7.5 MW West Plant Hardening will include a 5.5 MW gas combustion turbine, two 1 MW diesel generators, a 75,000 pph heat recovery steam generator, and a 2M gallon thermal storage tank. The entire existing plant, CHP, and thermal storage will be protected by a 14-foot (20-foot MSL) floodwall.
EAST PLANT2016 scheduled completion
Elevated 18 feet above ground level (30-foot MSL), the new 7.5 MW East Plant will include two 3,550-ton electric centrifugal chillers, a 5.5 MW gas combustion turbine, a 2 MW condensing extraction steam turbine, a 75,000 pph heat recovery steam boiler, one 1 MW diesel engine-driven, black-start generator, and 2M gallons of chilled water thermal storage.
Rather than replacing in kind, AEI and UTMB established an approach that would protect utility sources by elevating boilers and chillers or protecting them with floodwalls; supplement outside electrical utilities with 15MW of on-site microgrid combined heat and power (CHP); and, replace much of the existing steam system with a more resilient and efficient district hot water system.
50% more efficient than conventional systems, UTMB’s two new CHP plants will save approximately $3 million annually, with a 5-year simple payback. Extensive conversion from steam to hot water distribution is expected to save over 10% of the heating load through lower line losses alone, while reducing susceptibility to storm damage.
DISTRIBUTION2016 scheduled completion
BUILDING CONVERSIONS2017 scheduled completion
The new hot water distribution system connects the two plants to buildings throughout the campus with over five miles of piping, direct-buried wherever possible. To counter Galveston Island’s high saltwater table, acidic soil, and flood-prone location, AEI selected a highly corrosion-resistant, factory-insulated, thin-walled steel piping system with a high-density polyethylene outer jacket that complies with European Standard EN253.
AEI analysis determined plate and frame heat exchangers to be the most cost-effective and energy-efficient option, with maximum system Delta T, for the nearly 40 buildings converting from steam to hot water campus distribution. The conversion will utilize existing building piping to serve thermal and domestic water heating loads. Ten lab and research buildings will retain steam.
West Plant
East Plant
Distribution Legend
New Underground
New Overhead
Existing Overhead
In September 2008, Hurricane Ike flooded over one million square feet of University of Texas Medical Branch Galveston campus buildings to depths of six feet, interrupting and damaging electrical power, emergency generators, natural gas, chilled water, and municipal water and sewer. Submerged in seawater, the steam distribution system was a complete loss.
Affiliated Engineers, Inc. (AEI) supported UTMB recovery efforts with assessments helping to secure FEMA funding. The long-term opportunity created by Ike, however, has been to simultaneously optimize capital investment and operational spending with engineered resiliency and efficiency, to thrive as well as survive on this coastal island.
PRINTED ON 100% POST CONSUMER FIBER
Contact
Mark Lee, PE, LEED® APProject Leader for recovery, distribution, and building conversions 713.548.8910 [email protected]
Lynn Crawford, PEProject Leader for utility plants 713.548.8911 [email protected]
Jerry Schuett, PEAEI Energy and Utilities Market Leader 919.419.9802 [email protected]
Marcel Blanchard, CEM, CEPAssistant Vice President, Utility OperationsThe University of Texas Medical Branch at [email protected]
HurricaneForces the Issue
aeieng.com
Established in 1891, the University of Texas Medical Branch at Galveston is the oldest medical school west of the Mississippi. Covering 85 acres and supported by 13,000 employees, UTMB includes seven hospitals, a network of specialty clinics, numerous centers and institutes devoted to advanced research (Galveston National Laboratory among them), a medical library, and schools of nursing, health professions, and biomedical science, in addition to a medical school of 2500 students and 1000 faculty members.
All illustrations © Affiliated Engineers, Inc.
Beauregard Bryan, chairman of the University of Texas, Board of Regents Medical Committee, responds to the 1900 hurricane disaster.
Credit: UTMB Photos
aeieng.com
EnGINEERING Resiliency
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