Cleveland State University
Beginning in early 2008, the Science (SI) and Science Research (SRC) buildings at Cleveland State University (CSU), constructed during the early 1970s and 1980s, respectively, are scheduled to undergo removal or replacement of their outdated, malfunctioning, and inefficient fume hoods. In the years since their construction, the two buildings' fume hood ventilation systems have deteriorated significantly due to wear and tear, leading to numerous complications and equipment failures. After evaluating various options for fixing and/or upgrading its equipment, CSU decided to replace its fume hoods with the latest, energy-efficient models (or remove those hoods deemed unnecessary) and install variable frequency drives and a heat recovery system in both buildings. The Labs21 Technical Team assisted CSU during the proposal phase of the project by evaluating the submitted proposals and advising the university on which prospective team would be the best fit for the project.
As part of the renovation project, CSU plans to replace 173 constant air volume fume hoods with 118 new variable air volume hoods and eliminate 55 hoods entirely. Also installed will be 112 new exhaust variable air valves, 166 dual-duct variable air volume boxes, and 114 room air quality monitoring sensors. Four air handling units will be modified from single-fan, dual-duct systems into single-fan, single-variable, hot/cold air duct systems. All systems will include heat recovery coils to recover heat from exhaust air or steam condensate.
In addition to replacing the buildings' outdated fume hood equipment, CSU also plans to enhance the ventilation systems' efficiency by maintaining six air changes per hour (ACH) during occupied times and two ACH during unoccupied times. Occupancy sensors will be installed in all rooms to ensure the proper switching of air changes based on the occupancy of each room. Operator-activated emergency buttons will also be installed to change to 12 ACH in case of emergency.
These upgrades are expected to reduce SRC's energy consumption from an average of nearly 300,000 British thermal units (BTUs) per square foot per year to approximately 84,000 BTUs per square foot per year. SI's energy consumption is expected to decrease from 170,000 BTUs per square foot per year to just over 52,000 BTUs per square foot per year. The total cost of the project is slightly more than $10 million, with a projected payback period of five years. The project is expected to be completed by the end of 2008.
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Cleveland State University (CSU) was established as a state-assisted university in 1964 after adopting the buildings, faculty, staff, and curriculum of the former Fenn College, a private institution that was founded in 1929. Located in the heart of downtown Cleveland, Ohio, CSU offers an amazingly rich environment for learning, with 40 buildings on 85 acres—the largest footprint in the city. The metropolitan school boasts an enrollment of 16,000 students and a full-time faculty of nearly 575 members. For more information visit CSU's Web site.
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