Download or read book Energy and Cost Savings for Variable Air Volume VAV Laboratory Fume Hoods in Two University Research Buildings written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume of lab exhaust for Engineering Building 1 (EB-1) and Partners III, which are research labs located on North Carolina State University's Centennial Campus, is measured and analyzed. There are three main objectives. The first is to determine how the actual system exhaust compares to the total design capacity of the lab HVAC system. Next, the potential additional savings that would result from carefully keeping fume hoods closed when no one is working in the hood. Then, estimate the actual savings that result from using variable air volume (VAV) fume hoods in place of constant volume (CV) hoods. Lab buildings require much more energy for the HVAC system than other academic buildings because of their high minimum airflow set points, once-through air for supply, and high static pressures for the ventilation system. VAV fume hoods can reduce the HVAC energy requirements by reducing the hood exhaust flow to about one-fourth of the full flow when the fume hoods are closed. However, it is total lab exhaust that drives energy use, and the actual reduction in total exhaust cannot be assumed to be equal to a reduction in fume hood exhaust. This is true in EB-1 because minimum airflow set points are 10-12 air changes per hour (ACH), and a general exhaust box maintains this minimum. Thus, when all 70 fume hoods in EB-1 were closed on Friday evening before the Labor Day holiday in 2005 there was a drop of 14,166 CFM in fume hood exhaust. However, total exhaust dropped by only 8,156 CFM, which is 58% as much. Therefore, energy savings made possible by closing the fume hoods would be grossly overestimated if the drop in total lab exhaust had been assumed to be equal to the drop in fume hood exhaust. The total exhaust rate was determined to be almost constant at about 68% of the maximum design airflow for EB-1 during the trended period. The total exhaust was relatively constant over the trended period of about one month because most of the labs were controlled by the minim.
Download or read book Energy and Cost Savings for Variable Air Volume VAV Laboratory Fume Hoods in Two University Research Buildings written by Scott Michael Parker and published by . This book was released on 2006 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: HVAC, Exhaust, Trend, Airflow.
Download or read book Prudent Practices in the Laboratory written by National Research Council and published by National Academies Press. This book was released on 2011-03-25 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prudent Practices in the Laboratory-the book that has served for decades as the standard for chemical laboratory safety practice-now features updates and new topics. This revised edition has an expanded chapter on chemical management and delves into new areas, such as nanotechnology, laboratory security, and emergency planning. Developed by experts from academia and industry, with specialties in such areas as chemical sciences, pollution prevention, and laboratory safety, Prudent Practices in the Laboratory provides guidance on planning procedures for the handling, storage, and disposal of chemicals. The book offers prudent practices designed to promote safety and includes practical information on assessing hazards, managing chemicals, disposing of wastes, and more. Prudent Practices in the Laboratory will continue to serve as the leading source of chemical safety guidelines for people working with laboratory chemicals: research chemists, technicians, safety officers, educators, and students.
Download or read book ASHRAE Journal written by and published by . This book was released on 1992 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Engineering 2003 written by Mark D. Thornbloom and published by . This book was released on 2003 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Fume Hoods written by G. Thomas Saunders and published by John Wiley & Sons. This book was released on 1993-05-06 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough reference on adequate fume hood design and use. Dissects this device down to its bare essentials. Examines how and why a fume hood works. The book will help you test, locate, ventilate and maintain hoods which are all on site, field-generated and both old and new.
Download or read book Solar Engineering written by American Society of Mechanical Engineers. Solar Energy Division. Conference and published by . This book was released on 2003 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reducing Airflow Energy Use in Multiple Zone VAV Systems written by Ahmed G. Tukur and published by . This book was released on 2016 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Variable Air Volume (VAV) systems are the most popular HVAC systems in commercial buildings. VAV systems are designed to deliver airflows at design conditions which only occur for a few hours in a year. Minimizing energy use in VAV systems requires reducing the amount of airflow delivered through the system at part load conditions. Air Handling Unit (AHU) fans are the major drivers of airflow in VAV systems and installing a Variable Frequency Drive (VFD) is the most common method of regulating airflow in VAV systems. A VFD drive does not necessarily save energy without use of an appropriate control strategy. Static pressure reset (SPR) is considered to be the most energy efficient control strategy for AHU fans with VFDs installed. The implementation of SPR however has many challenges; for example, rogue zones--zones which have faulty sensors or failed controls and actuators, system dynamics like hunting and system diversity. By investigating the parameters associated with the implementation of SPR in VAV systems, a new, improved, more stable SPR algorithm was developed and validated. This approach was further improved using Fault Detection and Diagnostics (FDD) to eliminate rogue zones. Additionally, a CO2 Demand Control Ventilation (DCV) based minimum airflow control was used to further reduce ventilation airflow and save more energy from SPR. Energy savings ranging from 25% to 51% were recorded in actual buildings with the new SPR algorithm. Finally, a methodology that utilizes historical VAV data was developed to estimate the potential savings that could be realized using SPR. The approach employed first determines an effective system loss coefficient as a function of mean damper position using the historical duct static pressure, VAV damper positions and airflows. Additionally, the historical data is used to identify the maximum mean duct damper position realizable as a result of insuring a sufficient number of VAVs are fully open at any time. Savings are estimated by shifting the damper distribution mean at each time to this maximum value and reducing the static pressure to achieve the same overall system airflow rate. The methodology was tested on three different buildings with varying system characteristics. Savings estimates correlated well to the savings actually realized from SPR. This result has significant implications for energy service providers, who could use the predictions to guarantee savings from SPR.
Download or read book Engineering News record written by and published by . This book was released on 1981-07 with total page 1490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Design Construction and Renovation written by National Research Council and published by National Academies Press. This book was released on 2000-05-12 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory facilities are complex, technically sophisticated, and mechanically intensive structures that are expensive to build and to maintain. Hundreds of decisions must be made before and during new construction or renovation that will determine how successfully the facility will function when completed and how successfully it can be maintained once put into service. This book provides guidance on effective approaches for building laboratory facilities in the chemical and biochemical sciences. It contains both basic and laboratory-specific information addressed to the user communityâ€"the scientists and administrators who contract with design and construction experts. The book will also be important to the design and construction communitiesâ€"the architects, laboratory designers, and engineers who will design the facility and the construction personnel who will build itâ€"to help them communicate with the scientific community for whom they build laboratory facilities.
Download or read book ASHRAE Transactions written by and published by . This book was released on 1982 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tax and Other Possible Incentives for Energy saving Ventilation Equipment written by Wisconsin. Legislature. Legislative Council and published by Legislative Reference Bureau. This book was released on 1980 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ventilation and Energy Efficiency in Welding Shops written by Alexander Zhivov and published by Springer Nature. This book was released on 2021-11-02 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Guide is based on several decades of author’s research and practical experience in the areas of process optimization, ventilation and energy conservation in welding shops of auto manufacturing and maintenance facilities. The Guide will describe principles of Weld Fume Control, advanced ventilation systems for facilities with welding and allied processes and with energy conservation opportunities that result from the process related measures to reduce emission of fumes and gases and the building envelope improvements. The objectives of the Guide are to improve the health and safety in the industrial environment and offer strategies for energy conservation. The Guide is designed for engineers, production operators and energy managers.
Download or read book Laboratory Fume Hoods Explained written by Chip Albright and published by . This book was released on 2020-10-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "It doesn't matter if the hoods work, it only matters that we have them and that people assume they work."This callous comment from a laboratory owner who was preparing to build a new laboratory shocked fume hood designer and manufacturer, Chip Albright and convinced him to write this book. Albright's 40 years in the fume hood industry took him into hundreds of laboratories around the world and exposed the fact that the fume hood is the most misunderstood and misused safety device in most laboratories. Until now, understanding the complexity of laboratory ventilation systems was a nearly impossible feat for most. This book takes a step by step approach to explaining the interface between the fume hood, the laboratory ventilation system and the building HVAC. It reveals not only the failings of these systems, but suggests solutions for making them better. Albright's holistic approach to the subject is refreshing and effective. If you own or work in a laboratory, this book is required reading.Finally, a single source that includes:?the history of the fume hood?a detailed explanation of how a fume hood works?why most fume hoods do not perform effectively?why all laboratory users should be concerned?how to ensure that your laboratory fume hood is actually keeping your laboratory safe
Download or read book ASHRAE Laboratory Design Guide written by and published by Ashrae. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Reference manual for planning, design, and operation of laboratory HVAC systems to reduce the laboratory's energy footprint while ensuring safety, providing good comfort and indoor air quality, and protecting the integrity of experiments; includes online access to electronic design tools that illustrate features of laboratories and provide practical design aids"--
Download or read book Green Investment Green Return written by David J. Eagan and published by . This book was released on 1998 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents examples of exemplary academic institutions that have achieved both a healthy environment and the goal of saving economically. Twenty-three public and private institutions' cost-effective environmental management stories are presented. Institutional size ranges from a few thousand to 40,000 students. Contents include: (1) "Transportation"; (2) "Energy Conservation"; (3) "Water Conservation"; (4) "Dining Services"; (5) "Re-Use"; (6) "Management of Hazardous Chemicals"; (7) "Composting"; and (8) "Recycling." (YDS).
Download or read book Campus Energy Management Projects written by Energy Task Force and published by . This book was released on 1979 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
