California now has new regulations that mandate seismic retrofitting along with emission reductions. As a result, many hospitals must begin to comply to these strict new codes. The Case Studies here examine customer applications and key challenges.
Stanford UniversityHeat Recovery System Installation
R.F. MacDonald Co. provides a boiler-room solution at Stanford.
In an effort to become one of the most energy-efficient universities in the world, Stanford University in Stanford, Calif., launched the Stanford Energy System Innovations (SESI) project in 2012. At the heart of the three-year SESI initiative is heat recovery.
After researching a number of options, Stanford decided to transition from a fossil-fuel-based, combined heat and power system with steam distribution to an electrically powered, combined heat and cooling system with hot water distribution.
The idea is to capture waste heat from the district chilling system to produce hot water for the district heating system. To make the project a reality, Stanford installed more than 20 miles of hot water piping and retrofitted 155 buildings to convert the campus from a steam- to a hot water-based system. Read more
Biopharmaceutical CompanyHybrid Boiler System
Maximum efficiency yields high energy savings from condensing boilers.
A large Northern California biopharmaceutical company operates a research campus with Cleaver-Brooks Flextube Boilers in many of their buildings. The boilers were only six years old when the Bay Area Air Quality Management District began including smaller boilers in regulated emission control standards. As a result, the boilers were required to meet the new NOx and CO emission levels, as well as flue stack temperature criteria.
After evaluating a number of retrograde options for the existing boilers, including a heat recovery unit on the exhaust flues and changing the existing mechanical linkage system to an electronic emissions system, all of the options proved too costly. It was decided to replace the boilers with new equipment to meet the current requirements. Read more
Kaiser Permanente AnaheimNew Central Utility Plant (CUP)
Central utility plant meeting all seismic and emission requirements.
Kaiser Permanente was planning a large expansion to their Orange County health service network that would meet a number of strategic needs: provide updated facilities, meet the expanding demands of an aging population and comply with the new seismic and emission regulations within Southern California. They determined the best option was to build a new facility to replace a nearby existing facility. The new construction was established as a three phase process including: an initial medical office building, a second office building and central utility plant and the main hospital opening in September 2012.
Another key concern for Kaiser Permanente was the need to contain human resource costs for the completed facility. As a result R.F. MacDonald Co. worked in conjunction with the engineering firm overseeing the project to design and deliver Thermal Fluid Skids, for a system that would deliver steam for humidification, sterilization and hot water heating. Read more
El Camino HospitalNew Central Plant
Mountain View, CA
New boiler plant meeting low NOx emissions and seismic requirements.
The 1994 Northridge earthquake, a 6.7 trembler centered in Los Angeles, resulted in 72 deaths, over 9,000 injuries and rendered dozens of area hospitals damaged or unusable. As a result, the California State Senate passed a law that amended the Hospital Facilities Seismic Safety Act. SB-1953 requires all hospitals to retrofit, rebuild or close hospital buildings by specific dates if they do not meet strict new seismic safety standards, which would ensure that acute care units and emergency rooms could withstand future earthquake events.
The El Camino Hospital is located in the heart of Silicon Valley and for over 43 years has supplied a blend of cutting-edge technology with high quality patient care. In the spring of 2004 the hospital began planning and development for a new and expanded facility, designed to meet the seismic standards in Senate Bill 1953, as well as enable the facility to pioneer new approaches to patient comfort, convenience and safety. Read more
Mission HospitalBurner Retrofit
Mission Viejo, CA
Retrofit existing burner to meet low NOx emissions requirements.
In response to overcrowding and consistently operating at or above capacity levels, Mission Hospital recently approached R.F. MacDonald Co. after embarking on construction of a four-story, 94,730 square foot facility that would offer an additional 64 private patient beds, as well as become the new home for trauma services, the surgical intensive care unit, neuroscience center, diagnostic imaging and hospital chapel.
At the time, the hospital was running off of two Kewanee 250HP H35-250-G Boilers which are responsible for heating, hot water, humidification, and sterilization in the current tower. One of the current units was operating at 30ppm NOx with an older and obsolete Vitatherm burner. With their inability to obtain parts for this outdated system as well as the burners inability to keep up with the demand of the second tower, Mission Hospital required a solution to allow an overall increase in efficiency as well as keep up with the additional demand that the extra tower would now be placing on the existing systems. Read more
Kaiser Permanente ModestoNew Hospital Boiler Room
New boiler plant meeting low NOx emissions and seismic requirements.
Kaiser Permanente is recognized as one of America’s leading health care providers and not-for-profit health plans, currently serving over 8.6 million members in almost a dozen states. Modesto Medical Center is one of several new hospitals for Kaiser Permanente providing care to the San Joaquin Valley. The 670,000-square-foot hospital features energy-reducing materials and advanced green hospital furnishings and fixtures that use fewer toxic chemicals and earning national recognition as one of the “greenest” health care facilities in North America.
Once the initial project was developed, R.F. MacDonald Co. worked in conjunction with the specifying engineer to deliver boiler equipment that would meet the specifications and needs of the new facility, including both low NOx requirements and seismic requirements. Read more
UC Davis Medical CenterBoiler Retrofit
Retrofit existing boilers to meet low NOx emissions requirements.
The UC Davis Medical Center serves 6 million residents in 33 counties encompassing 65,000 square miles in Northern and Central California. The acute-care, teaching hospital is licensed for 613 beds and maintains an annual budget of roughly $1 billion. The hospital used their boilers for sterilization, domestic hot water and heating applications within the facility. They were operating four boilers: two Johnston 750 HP High Pressure, Dual Fuel (natural gas and #2 oil) Boilers that operated at 150 PSI and two Johnston 750 HP Low Pressure, Dual Fuel (natural gas and #2 oil) Boilers that operated at less than 15 PSI.
Under the new Sacramento Metropolitan Air Quality Management District (SMAQMD) Rule 411, they were required to reduce their emissions from 30 PPM NOx to 9 PPM NOx and in addition were required to reduce their CO from a permitted 400 PPM to 100 PPM. Read more