Relevant bibliographies by topics / CFC-11

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'CFC-11'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "CFC-11"

1

McDaniel, Anthony H., Chris A. Cantrell, James A. Davidson, Richard E. Shetter, and Jack G. Calvert. "The temperature dependent, infrared absorption cross-sections for the chlorofluorocarbons: CFC-11, CFC-12, CFC-13, CFC-14, CFC-22, CFC-113, CFC-114, and CFC-115." Journal of Atmospheric Chemistry 12, no. 3 (April 1991): 211–27. http://dx.doi.org/10.1007/bf00048074.

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Benjamin Plackett, special to C&EN. "CFC-11 emissions fall again." C&EN Global Enterprise 99, no. 6 (February 22, 2021): 9. http://dx.doi.org/10.1021/cen-09906-scicon6.

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Thomas, Max, Johannes C. Laube, Jan Kaiser, Samuel Allin, Patricia Martinerie, Robert Mulvaney, Anna Ridley, Thomas Röckmann, William T. Sturges, and Emmanuel Witrant. "Stratospheric carbon isotope fractionation and tropospheric histories of CFC-11, CFC-12, and CFC-113 isotopologues." Atmospheric Chemistry and Physics 21, no. 9 (May 5, 2021): 6857–73. http://dx.doi.org/10.5194/acp-21-6857-2021.

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Abstract. We present novel measurements of the carbon isotope composition of CFC-11 (CCl3F), CFC-12 (CCl2F2), and CFC-113 (CF2ClCFCl2), three atmospheric trace gases that are important for both stratospheric ozone depletion and global warming. These measurements were carried out on air samples collected in the stratosphere – the main sink region for these gases – and on air extracted from deep polar firn snow. We quantify, for the first time, the apparent isotopic fractionation, ϵapp(13C), for these gases as they are destroyed in the high- and mid-latitude stratosphere: ϵapp(CFC-12, high-latitude) =(-20.2±4.4) ‰, and ϵapp(CFC-113, high-latitude) =(-9.4±4.4) ‰, ϵapp(CFC-12, mid-latitude) =(-30.3±10.7) ‰, and ϵapp(CFC-113, mid-latitude) =(-34.4±9.8) ‰. Our CFC-11 measurements were not sufficient to calculate ϵapp(CFC-11), so we instead used previously reported photolytic fractionation for CFC-11 and CFC-12 to scale our ϵapp(CFC-12), resulting in ϵapp(CFC-11, high-latitude) =(-7.8±1.7) ‰ and ϵapp(CFC-11, mid-latitude) =(-11.7±4.2) ‰. Measurements of firn air were used to construct histories of the tropospheric isotopic composition, δT(13C), for CFC-11 (1950s to 2009), CFC-12 (1950s to 2009), and CFC-113 (1970s to 2009), with δT(13C) increasing for each gas. We used ϵapp(high-latitude), which was derived from more data, and a constant isotopic composition of emissions, δE(13C), to model δT(13C, CFC-11), δT(13C, CFC-12), and δT(13C, CFC-113). For CFC-11 and CFC-12, modelled δT(13C) was consistent with measured δT(13C) for the entire period covered by the measurements, suggesting that no dramatic change in δE(13C, CFC-11) or δE(13C, CFC-12) has occurred since the 1950s. For CFC-113, our modelled δT(13C, CFC-113) did not agree with our measurements earlier than 1980. This discrepancy may be indicative of a change in δE(13C, CFC-113). However, this conclusion is based largely on a single sample and only just significant outside the 95 % confidence interval. Therefore more work is needed to independently verify this temporal trend in the global tropospheric 13C isotopic composition of CFC-113. Our modelling predicts increasing δT(13C, CFC-11), δT(13C, CFC-12), and δT(13C, CFC-113) into the future. We investigated the effect of recently reported new CFC-11 emissions on background δT(13C, CFC-11) by fixing model emissions after 2012 and comparing δT(13C, CFC-11) in this scenario to the model base case. The difference in δT(13C, CFC-11) between these scenarios was 1.4 ‰ in 2050. This difference is smaller than our model uncertainty envelope and would therefore require improved modelling and measurement precision as well as better quantified isotopic source compositions to detect.
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Katherine Bourzac. "Oceans will become CFC-11 source." C&EN Global Enterprise 99, no. 10 (March 22, 2021): 9. http://dx.doi.org/10.1021/cen-09910-scicon5.

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Wang, Peidong, Jeffery R. Scott, Susan Solomon, John Marshall, Andrew R. Babbin, Megan Lickley, David W. J. Thompson, Timothy DeVries, Qing Liang, and Ronald G. Prinn. "On the effects of the ocean on atmospheric CFC-11 lifetimes and emissions." Proceedings of the National Academy of Sciences 118, no. 12 (March 15, 2021): e2021528118. http://dx.doi.org/10.1073/pnas.2021528118.

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The ocean is a reservoir for CFC-11, a major ozone-depleting chemical. Anthropogenic production of CFC-11 dramatically decreased in the 1990s under the Montreal Protocol, which stipulated a global phase out of production by 2010. However, studies raise questions about current overall emission levels and indicate unexpected increases of CFC-11 emissions of about 10 Gg ⋅ yr−1 after 2013 (based upon measured atmospheric concentrations and an assumed atmospheric lifetime). These findings heighten the need to understand processes that could affect the CFC-11 lifetime, including ocean fluxes. We evaluate how ocean uptake and release through 2300 affects CFC-11 lifetimes, emission estimates, and the long-term return of CFC-11 from the ocean reservoir. We show that ocean uptake yields a shorter total lifetime and larger inferred emission of atmospheric CFC-11 from 1930 to 2075 compared to estimates using only atmospheric processes. Ocean flux changes over time result in small but not completely negligible effects on the calculated unexpected emissions change (decreasing it by 0.4 ± 0.3 Gg ⋅ yr−1). Moreover, it is expected that the ocean will eventually become a source of CFC-11, increasing its total lifetime thereafter. Ocean outgassing should produce detectable increases in global atmospheric CFC-11 abundances by the mid-2100s, with emission of around 0.5 Gg ⋅ yr−1; this should not be confused with illicit production at that time. An illustrative model projection suggests that climate change is expected to make the ocean a weaker reservoir for CFC-11, advancing the detectable change in the global atmospheric mixing ratio by about 5 yr.
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Hoffmann, L., C. M. Hoppe, R. Müller, G. S. Dutton, J. C. Gille, S. Griessbach, A. Jones, et al. "Stratospheric lifetime ratio of CFC-11 and CFC-12 from satellite and model climatologies." Atmospheric Chemistry and Physics Discussions 14, no. 11 (June 25, 2014): 16865–906. http://dx.doi.org/10.5194/acpd-14-16865-2014.

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Abstract. Chlorofluorocarbons (CFCs) play a key role in stratospheric ozone loss and are strong infrared absorbers that contribute to global warming. The stratospheric lifetimes of CFCs are a measure of their global loss rates that are needed to determine global warming and ozone depletion potentials. We applied the tracer-tracer correlation approach to zonal mean climatologies from satellite measurements and model data to assess the lifetimes of CFCl3 (CFC-11) and CF2Cl2 (CFC-12). We present estimates of the CFC-11/CFC-12 lifetime ratio and the absolute lifetime of CFC-12, based on a reference lifetime of 52 yr for CFC-11. We analyzed climatologies from three satellite missions, the Atmospheric Chemistry Experiment-Fourier Transform Spectrometer (ACE-FTS), the HIgh Resolution Dynamics Limb Sounder (HIRDLS), and the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS). We found a CFC-11/CFC-12 lifetime ratio of 0.47±0.08 and a CFC-12 lifetime of 111(96–132) yr for ACE-FTS, a ratio of 0.46±0.07 and a lifetime of 112(97–133) yr for HIRDLS, and a ratio of 0.46±0.08 and a lifetime of 112(96–135) yr for MIPAS. The error-weighted, combined CFC-11/CFC-12 lifetime ratio is 0.47±0.04 and the CFC-12 lifetime estimate is 112(102–123) yr. These results agree with the recent Stratosphere-troposphere Processes And their Role in Climate (SPARC) reassessment, which recommends lifetimes of 52(43–67) yr and 102(88–122) yr, respectively. Having smaller uncertainties than the results from other recent studies, our estimates can help to better constrain CFC-11 and CFC-12 lifetime recommendations in future scientific studies and assessments. Furthermore, the satellite observations were used to validate first simulation results from a new coupled model system, which integrates a Lagrangian chemistry transport model into a climate model. For the coupled model we found a CFC-11/CFC-12 lifetime ratio of 0.48±0.07 and a CFC-12 lifetime of 110(95–129) yr, based on a ten-year perpetual run. Closely reproducing the satellite observations, the new model system will likely become a useful tool to assess the impact of advective transport, mixing, and photochemistry as well as climatological variability on the stratospheric lifetimes of long-lived tracers.
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Hoffmann, L., C. M. Hoppe, R. Müller, G. S. Dutton, J. C. Gille, S. Griessbach, A. Jones, et al. "Stratospheric lifetime ratio of CFC-11 and CFC-12 from satellite and model climatologies." Atmospheric Chemistry and Physics 14, no. 22 (November 27, 2014): 12479–97. http://dx.doi.org/10.5194/acp-14-12479-2014.

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Abstract. Chlorofluorocarbons (CFCs) play a key role in stratospheric ozone loss and are strong infrared absorbers that contribute to global warming. The stratospheric lifetimes of CFCs are a measure of their stratospheric loss rates that are needed to determine global warming and ozone depletion potentials. We applied the tracer–tracer correlation approach to zonal mean climatologies from satellite measurements and model data to assess the lifetimes of CFCl3 (CFC-11) and CF2Cl2 (CFC-12). We present estimates of the CFC-11/CFC-12 lifetime ratio and the absolute lifetime of CFC-12, based on a reference lifetime of 52 years for CFC-11. We analyzed climatologies from three satellite missions, the Atmospheric Chemistry Experiment-Fourier Transform Spectrometer (ACE-FTS), the HIgh Resolution Dynamics Limb Sounder (HIRDLS), and the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS). We found a CFC-11/CFC-12 lifetime ratio of 0.47±0.08 and a CFC-12 lifetime of 112(96–133) years for ACE-FTS, a ratio of 0.46±0.07 and a lifetime of 113(97–134) years for HIRDLS, and a ratio of 0.46±0.08 and a lifetime of 114(98–136) years for MIPAS. The error-weighted, combined CFC-11/CFC-12 lifetime ratio is 0.46±0.04 and the CFC-12 lifetime estimate is 113(103–124) years. These results agree with the recent Stratosphere-troposphere Processes And their Role in Climate (SPARC) reassessment, which recommends lifetimes of 52(43–67) years and 102(88–122) years, respectively. Having smaller uncertainties than the results from other recent studies, our estimates can help to better constrain CFC-11 and CFC-12 lifetime recommendations in future scientific studies and assessments. Furthermore, the satellite observations were used to validate first simulation results from a new coupled model system, which integrates a Lagrangian chemistry transport model into a climate model. For the coupled model we found a CFC-11/CFC-12 lifetime ratio of 0.48±0.07 and a CFC-12 lifetime of 110(95–129) years, based on a 10-year perpetual run. Closely reproducing the satellite observations, the new model system will likely become a useful tool to assess the impact of advective transport, mixing, and photochemistry as well as climatological variability on the stratospheric lifetimes of long-lived tracers.
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Hofer, Markus, and Dieter M. Imboden. "Simultaneous Determination of CFC-11, CFC-12, N2, and Ar in Water." Analytical Chemistry 70, no. 4 (February 1998): 724–29. http://dx.doi.org/10.1021/ac970499o.

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Christidis, N., M. D. Hurley, S. Pinnock, K. P. Shine, and T. J. Wallington. "Radiative forcing of climate change by CFC-11 and possible CFC replacements." Journal of Geophysical Research: Atmospheres 102, no. D16 (August 1, 1997): 19597–609. http://dx.doi.org/10.1029/97jd01137.

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Cheung, H. Michael, and Shreekumar Kurup. "Sonochemical Destruction of CFC 11 and CFC 113 in Dilute Aqueous Solution." Environmental Science & Technology 28, no. 9 (September 1994): 1619–22. http://dx.doi.org/10.1021/es00058a014.

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Dissertations / Theses on the topic "CFC-11"

1

Marani, Luciano. "Estudo das concentrações dos clorofluorcabonetos CFC-11 e CFC-12 na baixa atmosfera em regiões remotas, rurais e urbanas no Brasil." Instituto Nacional de Pesquisas Espaciais (INPE), 2003. http://urlib.net/sid.inpe.br/jeferson/2003/07.17.07.43.

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Os clorofluorcarbonetos (CFCs), a maioria deles de origem antropogênica, foram utilizados durante muitos anos nos ciclos de refrigeração e na indústria química. Atualmente sua produção e comercialização são controladas, pois esses gases são os principais responsáveis pela diminuição global e buraco na camada de ozônio. Este trabalho teve como objetivo estudar a distribuição das razões de mistura do CCl3F (CFC-11) e do CCl2F2 (CFC-12) no Brasil. Faz-se uma primeira avaliação do comportamento destes gases na baixa troposfera em regiões remotas (Barra de Maxaranguape - 6°S; 35°O), rurais (Campo Grande - 20,5°S; 54,6°O e Maringá - 23,4°S; 51,9°O) e urbanas (São Paulo - 23,5°S; 46,6°O e São José dos Campos - 23,2°S; 45,9°O). Para a determinação das razões de mistura dos CFCs nas amostras coletadas foi utilizada a técnica de cromatografia gasosa. Os resultados indicam que as variações latitudinais para ambos os gases são pequenas e as médias anuais para 2002 são próximas (Barra de Maxaranguape, CFC-11: 259,2 ± 4,1 pptv e CFC-12: 544,4 ± 3,5 pptv; Campo Grande, CFC-11: 257,6 ± 2,2 pptv e CFC- 12: 543,7 ± 3,2 pptv; Maringá, CFC-11: 257,2 ± 2,4 pptv e CFC-12: 544,5 ± 3,6 pptv). Observa-se uma pequena variação sazonal, com mínimo nos meses de inverno, para o CFC-11 em Barra de Maxaranguape e Maringá. Esta sazonalidade é mais intensa no CFC-12, sendo observada nos três pontos de coleta. A razão de mistura do CFC-11 em Barra de Maxaranguape, adotado como ?background?, apresenta tendência de decréscimo de longo prazo em torno de 8 pptv/ano, enquanto permanece aproximadamente constante para o CFC-12. As medidas em regiões urbanas, como São Paulo e São José dos Campos, mostram que emissões de CFC-11, se existirem, são pouco significativas. Ao contrário, observou-se uma grande variação espacial e temporal do CFC-12 em São Paulo e São José dos Campos, com mínimo de 551,1 pptv e máximo de 1395,8 pptv, a qual indica, como esperado, a presença de fontes localizadas, com emissões intensas, em regiões urbanas.
ABSTRACT Chlorofluorocarbons (CFCs) were intensively used for refrigeration, production of aerosols and foams. Presently, their production and trade are controlled, because of their role in ozone depletion. This work presents a study of atmospheric chlorofluorocarbons CCl3F (CFC-11) and CCl2F2 (CFC-12) in the lower troposphere of remote regions in Brazil (Barra de Maxaranguape - 6°S; 35°O; Campo Grande - 20.5°S; 54.6°O and Maringá - 23.4°S; 51.9°O), daily and spatial variations in urbanized areas (São Paulo - 23.5°S; 46.6°O and São José dos Campos - 23.2°S; 45.9°O). For quantitative determination of CFCs concentrations, a gas chromatograph with electron capture detector (ECD) was optimized. Surface data for both CFCs showed no latitudinal variation. The annual averages for 2002 were: Barra de Maxaranguape, CFC-11: 259.2 ± 4.1 pptv and CFC-12: 544.4 ± 3.5 pptv; Campo Grande, CFC-11: 257.6 ± 2.2 pptv and CFC-12: 543.7 ± 3.2 pptv; Maringá, CFC-11: 257.2 ± 2.4 pptv and CFC-12: 544.5 ± 3.6 pptv. The monthly averages of CFC-11 for Barra de Maxaranguape and Maringá showed a small seasonal variation, with minimum during winter (June/July). The observed CFC-12 concentrations at the three remote locations presented a more pronounced seasonal variation than that observed in CFC-11, with same time of minimum. In Barra de Maxaranguape the CFC-11 concentration showed a decreasing trend, with a rate of about 8 pptv/year, while the CFC-12 concentration did not show any annual variation. On the contrary, there is a large spatial and temporal variation in the concentration of CFC-12 in the urban areas, ranging from 551.1 pptv to 1,395.8 pptv.
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Marchetto, Eleonora. "Analisi di tendenza per ozono e CFC-11 nella serie decennale delle misure di MIPAS in stratosfera e alta troposfera." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8341/.

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Lo strumento MIPAS, operativo a bordo del satellite polare ENVISAT negli anni dal 2002 al 2012, ha misurato spettri di emissione nel medio infrarosso utilizzando la tecnica di scansione del lembo atmosferico. L'Agenzia Spaziale Europea (ESA), mediante un algoritmo di inversione ottimizzato, ha ricavato dagli spettri di MIPAS la distribuzione verticale di diversi composti chimici minoritari in stratosfera e alta troposfera. Tra questi composti figurano l'ozono (O3) e il CFC-11. Lo strato di ozono stratosferico svolge una funzione fondamentale come schermo della radiazione ultravioletta solare, altrimenti dannosa per gli esseri viventi sulla terra. D'altra parte, da alcuni decenni i cosiddetti cloro-fluoro carburi (CFC), tra cui la molecola di CCl3F (indicata sinteticamente con la sigla CFC-11) sono ritenuti responsabili della diminuzione generale dell'ozono stratosferico. Per questo motivo nel 1987 a Montreal è stato siglato un accordo internazionale per limitare l'immissione dei CFC in atmosfera. A partire dalla fine degli anni '80, in base a questo accordo, ci si aspetta quindi una progressiva riduzione dei CFC e un conseguente graduale recupero della concentrazione di ozono. Le misure di MIPAS, con copertura geografica globale, offrono una possibilità assai interessante per la verifica di queste tendenze attese. In questo lavoro di tesi, i profili verticali di frazione volumetrica (VMR) di ozono e CFC-11 ricavati dal processore di ESA versione 6.0 sono stati interpolati a livelli di pressione costante, raggruppati per bande di latitudine e mediati su intervalli di tempo mensili. Abbiamo quindi sviluppato un modello di tendenza parametrico che include un termine costante, uno lineare, due termini dell'oscillazione quasi biennale (QBO), un termine di flusso solare radio e diversi termini armonici in seno e coseno con periodo diverso. Il modello è stato quindi adattato mediante un algoritmo di minimizzazione di Levenberg-Marquardt alle medie mensili ottenute dalle misure di MIPAS per tutto il periodo che va da luglio 2002 ad aprile 2012. Le stime di tendenza ottenute per ozono e CFC-11 sono statisticamente significative e, a seconda della latitudine e del livello di pressione considerato, assumono una gamma di valori che va da -0.15 ppmv/decade a +0.44 ppmv/decade per l'ozono e una gamma di valori che va da -50.2 pptv/decade a +6.5 pptv/decade per il CFC-11. Abbiamo ottenuto tendenze per la maggior parte leggermente positive per l'ozono e quasi ovunque fortemente negative per il CFC-11, risultato in accordo con le disposizioni emanate a seguito del Protocollo di Montreal e in buon accordo anche con lavori precedentemente pubblicati in letteratura. Infine abbiamo stimato l'errore sistematico sulle tendenze ricavate, causato dalla deriva strumentale dovuta alla non-linearità della risposta dei rivelatori, che varia a seguito dell'invecchiamento dei rivelatori stessi.
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Lee, Bing-Sun. "Uses of chlorofluorocarbons as ocean tracers and for estimating the removal rates of CFC-11 and carbon tetrachloride in certain marine environments /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/11048.

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"Estudo das concentrações dos clorofluorcabonetos CFC-11 e CFC-12 na baixa atmosfera em regiões remotas, rurais e urbanas no Brasil." Tese, Arquivo URLib de Teses e Dissertações do INPE, 2003. http://bibdigital.sid.inpe.br/rep-/sid.inpe.br/jeferson/2003/07.17.07.43.

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Books on the topic "CFC-11"

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Shahed, Somea. The effect of CFC-11 on methanogenesis. Ottawa: National Library of Canada, 2002.

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Proceedings of the Society for Management in Education in Ireland (1 Dublin). From subject based curriculum development to whole school management: The paper delivered by Dr. Michael Murray CFC at a meeting of the society on 11 April 1992 at Trinity College Dublin. Dublin: (Society for Management in Education in Ireland), 1992.

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United, States Congress House Committee on Science Space and Technology Subcommittee on Natural Resources Agriculture Research and Environment. CFC reduction--technology transfer to the developing world: Hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment and the Subcommittee on International Scientific Cooperation of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred First Congress, second session, July 11, 1990. Washington: U.S. G.P.O., 1990.

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United, States Congress House Committee on Science Space and Technology Subcommittee on Natural Resources Agriculture Research and Environment. CFC reduction--technology transfer to the developing world: Hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment and the Subcommittee on International Scientific Cooperation of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred First Congress, second session, July 11, 1990. Washington: U.S. G.P.O., 1990.

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United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Natural Resources, Agriculture Research, and Environment. CFC reduction--technology transfer to the developing world: Hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment and the Subcommittee on International Scientific Cooperation of the Committee on Science, Space, and Technology, U.S. House of Representatives, One hundred first Congress, second session, July 11, 1990. Washington: U.S. G.P.O., 1990.

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United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Natural Resources, Agriculture Research, and Environment. CFC reduction--technology transfer to the developing world: Hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment and the Subcommittee on International Scientific Cooperation of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred First Congress, second session, July 11, 1990. Washington: U.S. G.P.O., 1990.

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United, States Congress House Committee on Science Space and Technology Subcommittee on Natural Resources Agriculture Research and Environment. CFC reduction--technology transfer to the developing world: Hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment and the Subcommittee on International Scientific Cooperation of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred First Congress, second session, July 11, 1990. Washington: U.S. G.P.O., 1990.

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United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Natural Resources, Agriculture Research, and Environment. CFC reduction--technology transfer to the developing world: Hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment and the Subcommittee on International Scientific Cooperation of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred First Congress, second session, July 11, 1990. Washington: U.S. G.P.O., 1990.

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Panicker, Elizabeth G. The effect of CFC-11 on the biodegradation of PCE. 2002, 2002.

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P, Nelson T., and Air and Energy Engineering Research Laboratory, eds. Control technology overview report: CFC-11 emissions from flexible polyurethane foam manufacturing : project summary. Research Triangle Park, NC: U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1988.

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Book chapters on the topic "CFC-11"

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Booth, J. R., R. S. Graves, and D. W. Yarbrough. "Effective Diffusion Coefficients for CFC-11 by Gravimetric Depletion from Thin Slices of PIR Foam." In Thermal Conductivity 23, 325–37. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210719-36.

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"Oklahoma Experimental Program (Water and CFC-11)." In Release, 11–17. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470935170.ch4.

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Hiraiwa, M., A. Yamazaki, R. Otsuka, and T. Nagoya. "Adsorption and catalysis mechanism of CFC-11 in NaX zeolite." In Zeolite Science 1994: Recent Progress and Discussions - Supplementary Materials to the 10th International Zeolite Conference, Garmish-Partenkirchen, Germany, July 17-22, 1994, 192–93. Elsevier, 1995. http://dx.doi.org/10.1016/s0167-2991(06)81149-3.

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Zhang, Y. "Numerical simulations of dating young groundwater with multiple atmospheric tracers: CFC-11, CFC-12, SF6, 3H/3He and 85Kr." In Computational Methods in Water Resources: Volume 2, Proceedings of the XVth International Conference on Computational Methods in Water Resources, 1367–78. Elsevier, 2004. http://dx.doi.org/10.1016/s0167-5648(04)80150-3.

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Conference papers on the topic "CFC-11"

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Marani, Luciano, and Plínio C. Alvalá. "Observations of CFC-11 and CFC-12 in remote and urban areas in Brazil." In 8th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2003. http://dx.doi.org/10.3997/2214-4609-pdb.168.arq_283.

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Altan, Hakan, Baolong L. Yu, Robert R. Alfano, and Scott Alfano. "Room Temperature Terahertz (THz) Spectroscopy of CCl3F (CFC-11)." In Laser Applications to Chemical, Security and Environmental Analysis. Washington, D.C.: OSA, 2006. http://dx.doi.org/10.1364/lacsea.2006.wb4.

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Girschikofsky, Maiko, Dimitrij Ryvlin, Siegfried R. Waldvogel, and Ralf Hellmann. "Planar Bragg Grating Sensor for the Detection of CFC-11." In Optics and Photonics for Energy and the Environment. Washington, D.C.: OSA, 2018. http://dx.doi.org/10.1364/ee.2018.et5a.5.

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4

Kundu, Sazal K., Eric M. Kennedy, John C. Mackie, Thomas S. Molloy, Vaibhav V. Gaikwad, Bogdan Z. Dlugogorski, and Clovia I. Holdsworth. "Reaction of CCl3F (CFC-11) with CH4 in a dielectric barrier discharge reactor." In 2015 IEEE International Conference on Plasma Sciences (ICOPS). IEEE, 2015. http://dx.doi.org/10.1109/plasma.2015.7179783.

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Yu, Suiran, Jing Tao, Qingyan Yang, Jianpu Zhang, and Fengfu Yin. "Case Study of Chinese SMEs Oriented Environmental Impact Assessment on Refrigerator Production." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48920.

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This paper presents a Life Cycle Assessment (LCA) case study aiming at assisting Chinese Small and Medium Enterprises (SMEs) to identify the environmental improvement opportunities. A typical refrigerator SME located in suburb of Shanghai is visited for data collection. Besides, related project reports, academic papers, and LCA software and databases are referred for necessary data. Environment inventory of manufacturing a typical Chinese household refrigerator model is calculated and analyzed. Results show that ABS components are the major contributors to energy consumption; production of rubber (for gaskets), MDI (for insulation) and packaging materials are the most water polluting processes, while phosphatizing treatment of compartment plates and door panels generates most of the waste water with phenol; the majority of CO2 (eq.) and SO2 (eq.) is emitted during ABS component and steel sheet production while the use of F-containing coolant causes most of the CFC-11(eq.) emission, which is the major cause of ozone depletion. The opportunities of environmental improvements are then assessed by sensitivity and economical analysis. It is suggested that for refrigerator manufacturing SMEs, reduction in ABS use and eco-optimized packaging solutions are the most cost-effective measures for environmental improvements. Also, there are improvement potentials in material and energy utility management of SMEs. However, considering their limited management capability and access to resources and information, SMEs needs support from the public sector in entrepreneurship and environmental education, technological and financial help and regulatory protection for sustainable development.
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Briggs, Adrian, Christos Kelemenis, and John W. Rose. "CONDENSATION OF CFC-113 WITH DOWNFLOW IN VERTICAL, INTERNALLY ENHANCED TUBES." In International Heat Transfer Conference 11. Connecticut: Begellhouse, 1998. http://dx.doi.org/10.1615/ihtc11.430.

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Schmitt, Joshua. "Development of an Advanced Hydrogen Energy Storage System using Aerogel in a Cryogenic Flux Capacitor (CFC)." In Thermal-Mechanical-Chemical Energy Storage Workshop, San Antonio, Texas, August 10-11, 2021. US DOE, 2021. http://dx.doi.org/10.2172/1813864.

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Yang, K. H., S. K. Lee, Y. S. Chiang, W. C. Chen, and M. M. Ting. "A Comparative Study of Centrifugal Chiller Performances After CFC Refrigerant Conversion." In ASME 1997 Turbo Asia Conference. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-aa-037.

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Theoretical analysis indicated that, a typical centrifugal chiller could lose over 8% to 10% of its cooling capacity after converting from R-11 into using R-123 refrigerant. In this study, an attempt to recover some of this capacity loss by slightly decreasing its operating speed was analyzed. A full-scale experiment was performed to change the gear train of a 300 RT centrifugal chillier, which validated that 3%∼6% capacity recovery could be expected. This is a break-through to promote the chiller conversion for wide engineering applications and is discussed in detail in this paper.
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Reports on the topic "CFC-11"

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Graves, R. S., D. L. McElroy, R. G. Miller, D. W. Yarbrough, and R. R. Zarr. Interlaboratory comparison of four heat flow meter apparatuses on planed polyisocyanurate boards foamed with CFC-11. Office of Scientific and Technical Information (OSTI), June 1991. http://dx.doi.org/10.2172/5685795.

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McElroy, D. L., R. S. Graves, D. W. Yarbrough, and F. J. Weaver. Laboratory test results on the thermal resistance of polyisocyanurate foamboard insulation blown with CFC-11 substitutes: A cooperative industry/government project. Office of Scientific and Technical Information (OSTI), September 1991. http://dx.doi.org/10.2172/6232228.

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You might also be interested in the extended bibliographies on the topic 'CFC-11' for particular source types:
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