A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ventilation Measurements in the Norris Cotton Federal Office Building in Manchester, NH
Winter ventilation measurements were made in the Norris Cotton Building in Manchester, N.H. Air exchange rates, averaged for the entire building, were of the order of 0.7 to 0.8 air changes per hour by the SF6 tracer techniques. This was obtained with outside air dampers closed. From this estimate and from counts of the number of occupants, ventilation rates of the order of 41 to 58 cfm (0.95 to 1.34 cu. m/min) per person were calculated. The use of measured CO2 concentration as an index of ventilation was reexamined. About 65 percent of the concentrations in selected rooms on each floor were between 700 and 1,200 ppm. In one room where 11 people were taking an examination, 2440 ppm CO2 was found. Ventilation rates per person, calculated from CO2 concentrations, were less than those estimated from the overall building ventilation rate, but nevertheless met the requirements in the ASHRAE Ventilation Standard 62-73 when the building was operated with the outside air dampers closed.
Ventilation Measurements in the Norris Cotton Federal Office Building in Manchester, NH
Winter ventilation measurements were made in the Norris Cotton Building in Manchester, N.H. Air exchange rates, averaged for the entire building, were of the order of 0.7 to 0.8 air changes per hour by the SF6 tracer techniques. This was obtained with outside air dampers closed. From this estimate and from counts of the number of occupants, ventilation rates of the order of 41 to 58 cfm (0.95 to 1.34 cu. m/min) per person were calculated. The use of measured CO2 concentration as an index of ventilation was reexamined. About 65 percent of the concentrations in selected rooms on each floor were between 700 and 1,200 ppm. In one room where 11 people were taking an examination, 2440 ppm CO2 was found. Ventilation rates per person, calculated from CO2 concentrations, were less than those estimated from the overall building ventilation rate, but nevertheless met the requirements in the ASHRAE Ventilation Standard 62-73 when the building was operated with the outside air dampers closed.
Ventilation Measurements in the Norris Cotton Federal Office Building in Manchester, NH
C. M. Hunt (author)
1979
12 pages
Report
No indication
English