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  • Back to the Basics: Detection of Ventilation Loss
    The minimum ventilation calculations should be made for the "worst case." A direct measurement of the ventilation rate - using properly situated low-pressure switches - should be connected to the control logic so that the process shuts down immediately if ventilation falls below the minimum
  • CO2 Control In School Gymnasiums
    The Coquitlam School District has been able to save $10,000 to $15,000 in annual energy costs for each of its schools by installing CO2 based ventilation control in its Gymnasiums and auditoriums. The school district is nestled in the foothills of the Rocky Mountains just outside of Vancouver BC
  • Using CO2 To Reduce Costly Over Ventilation
    The role of CO2 demand controlled ventilation in reducing energy costs in building with high variable occupancy is well known. What is less well known is the role CO2 sensors can play in providing a feedback control to ensure that minimum outdoor air settings are not over-ventilating spaces
  • ASHRAE Interpretation Gives Green Light to CO2 Control
    The role of Carbon Dioxide (CO2) demand controlled ventilation (DCV) in indoor air quality and ventilation control has been clarified in a recent interpretation to ANSI/ASHRAE 62-1989 "Ventilation For Acceptable Air Quality". While the proposed and massive revision to the standard, often referred
  • Flexible Packaging (.pdf)
    This case history describes how one company used AcuPro Infrared Process Analyzers to provide safety and ventilation control to save energy costs.
  • Garage Monitoring for Energy Management.
    The growing demand for underground and enclosed parking and maintenance garages (resulting from limitations on land availability) has increased the awareness and need for proper ventilation and control systems. In addition, increased health and safety programs have only added to the concerns
  • Explaining The AirTest Self Calibrating CO2 Sensor
    The self-calibration algorithm used in all AirTest CO2 sensors targeted for ventilation control in buildings has been used extensively since 1993. This algorithm is called "ABC", which stands for Automatic Background Calibration. The figure below shows the initial use of the ABC algorithm by 32
  • Energy Savings Opportunity In Parking Garages
    This document provides a review of the opportunity available in utilizing AirTest products to provide CO based ventilation control in enclosed parking facilities. It also describes the products offered by AirTest and selling tools that can be used to take advantage of this lucrative opportunity
  • Did You Know? Carbon Monoxide Sensors Do Not Detect Diesel Exhaust?
    Popular uses of carbon monoxide sensors in the building automation industry involve monitoring vehicle exhaust. Sensors are commonly installed in parking garages to monitor carbon monoxide levels and provide an input signal for a ventilation control system or building automation system. This system
  • CO2 Control In School Classrooms
    There are four primary reasons to consider using CO2 sensors in school classrooms. 1. Student Health Considerations. CO2 monitoring can ensure that acceptable levels of ventilation for the health and welfare of students and teachers is maintained at all times. Are Codes & Standards Being Met?. CO2
  • Control of Salt Dust in Snack Food Manufacturing (.pdf)
    A name-brand snack food producer approached Verantis for a simple solution to their dust problem. During the final production stages for various snacks, salt and spice flavorings were sprayed on the product and the entrained overspray needed to be ventilated and scrubbed. The ventilation volume

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  • Pediatric and Neonatal Mechanical Ventilation
    … poorer outcome in ECMO- treated CDH may reflect the initial severity of disease rather than ECMO: Beardsmore showed that ECMO per se did not worsen respiratory function at 1 year of age compared to convention- ally ventilated controls (Beardsmore et al. 2000).
  • Patty's Industrial Hygiene 4-Volume Set 6th Edition
    3 LOCAL EXHAUST VENTILATION Local exhaust ventilation controls an emitted air contaminant by capturing it at or near the place where it is generated and removing it from the workspace.
  • Noninvasive Mechanical Ventilation
    Neurally Adjusted Ventilatory Assist (NAVA) is a mode of ventilation controlled by the electrical activity of the diaphragm (Edi) and can be delivered invasively (NAVA) or noninvasively with different interfaces (NIV-NAVA).
  • Tunnel Fire Dynamics
    Fuel and Ventilation Controlled Fires......................................................
  • Manual of Neonatal Respiratory Care
    Also, if small changes in power settings result in large changes in PaCO2 , ventilation control will be improved by increasing the frequency to 15 Hz.