A new method for infrared imaging of air currents in and around critical hazard fume hoods

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:6812330

Mulac, W A; McCreary, J R ^[1]; Schmalz, H ^[2]

---

1. Argonne National Lab., IL (United States)
2. Argonne National Lab., IL (United States) Thermal Surveys, Inc., Rockford, IL (United States)

A real time method of measuring and recording the efficacy of vapor containment in and around critical hazard fume hoods is being developed. An infrared camera whose response is restricted to a spectral range that overlaps a strong absorption band in a non-toxic gas is used to render real-time video images of the presence and flow of the gas. The gas, nitrous oxide, is ejected in a continuous stream in and around fume hoods that are to be certified capable of containing hazardous fumes. The principle advantage is that various scenarios of air flow displacement in and outside the hood can be easily investigated; the principle limitation is the necessity of high tracer gas concentration to obtain strong visualizations. We hope that this technique can be found to be an effective and safe method to test hoods in locations that were built before present regulations were promulgated.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6812330
• Report Number(s): ANL/CHM/CP-75284; CONF-921095-2; ON: DE93003009
• Resource Relation: Conference: Symposium on indoor air quality: environments for people - investigating and evaluating contaminants and occupant factors and responses, control and remediation, San Francisco, CA (United States), 18-21 Oct 1992
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
47 OTHER INSTRUMENTATION
FUME HOODS
AIR FLOW
GAS FLOW
MEASURING METHODS
VAPORS
CONTAINMENT
CAMERAS
IMAGES
INFRARED THERMOGRAPHY
NITROUS OXIDE
OCCUPATIONAL SAFETY
CHALCOGENIDES
EQUIPMENT
FLUID FLOW
FLUIDS
GASES
LABORATORY EQUIPMENT
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
SAFETY
THERMOGRAPHY
054000* - Nuclear Fuels- Health & Safety
440800 - Miscellaneous Instrumentation- (1990-)