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RECORD NUMBER: 169 OF 517

OLS Field Name OLS Field Data
Main Title Electric component cooling alternatives: {microform} compressed air and liquid nitrogen.
Author Schmitt, S. S. ; Olfenbuttel, R. F.
CORP Author Battelle, Columbus, OH.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher U.S. Environmental Protection Agency.
Year Published 1994
Report Number EPA 600/R-94/170; EPA-68-CO-0003
Stock Number PB95-100087
OCLC Number 52718933
Additional Subjects Cooling ; Environmental chemical substitutes ; Air pollution abatement ; Liquid nitrogen ; Compressed air ; Refrigerants ; Failure mode anlaysis ; Troubleshooting ; Failure modes ; Cracks ; Printed circuit boards ; Integrated circuits ; Capacitors ; Alternatives ; Comparison ; Performance evaluation ; Electronic industry ; Printed circuit board manufacturing ; Thermally intermittent compounds
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=3000392M.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB95-100087 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 104 p. ; : ill..
Abstract The goal of the study was to evaluate tools used to troubleshoot circuit boards with known or suspected thermally intermittent components. Spray cans of refrigerants (R-12 (CFC-12) and R-22 (HCFC-22)), which are commonly used in electronics manufacturing and repair businesses for this purpose, served as the benchmark for the evaluation. A promising alternative technology that was evaluated in the study is a compressed-air tool that provides a continuous stream of cold air that can be directed toward specific components. Another alternative technology that was considered is a Dewar flask that dispenses cold nitrogen gas as the cooling agent. Critical parameters were measured for each cooling method to provide a basis for comparison of compressed air and liquid nitrogen with spray cans of refrigerant. Although the plan was written specifically for the evaluation of compressed air, the test plan was written to include an evaluation of liquid nitrogen because test site staff were interested in evaluating this technology. The liquid nitrogen evaluation showed that it could be a viable alternative.
Notes "September 1994." Microfiche.
Place Published Cinncinati, OH :
Supplementary Notes Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
PUB Date Free Form 1994
NTIS Prices PC A06/MF A02
BIB Level m
Cataloging Source OCLC/T
OCLC Time Stamp 20030724170315
Language eng
Origin OCLC
Type MERGE
OCLC Rec Leader 00695nam 2200205Ka 45020