Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

Sorted by: relevance · author · university · dateNew search

You searched for subject:(direct indirect contact). Showing records 1 – 3 of 3 total matches.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters

1. Maalouf, Samer. Étude et conception d'un système thermodynamique producteur du travail mécanique à partir d'une source chaude à 120°C : Study and design of a thermodynamic system generating mechanical work from a hot source at 120°C.

Degree: Docteur es, Energétique et Procédés, 2013, Paris, ENMP

Les fumées à basse température (<120-150 °C) sortant des procédés industriels pourraient être récupérées pour la production d'électricité et constituent un moyen efficace de réduction de la consommation d'énergie primaire et des émissions de dioxyde de carbone. Cependant, des barrières techniques tels que la faible efficacité de conversion, la nécessité d'une grande zone de transfert de chaleur, et la présence de substances chimiques corrosives liées à une forte teneur en humidité lors du fonctionnement en environnement sévère entravent leur application plus large. Cette thèse porte particulièrement sur les secteurs industriels les plus énergivores rencontrant actuellement des difficultés à récupérer l'énergie des sources de chaleur à basse température dans des environnements hostiles. Des cycles thermodynamiques existants basés sur le Cycle de Rankine Organique (ORC) sont adaptés et optimisés pour ce niveau de température. Deux méthodes de récupération de chaleur classiques sont étudiées plus particulièrement : les déshumidifications à contact direct et indirect. Des méthodes de conception optimisées pour les échangeurs de chaleur sont élaborées et validées expérimentalement. Pour la déshumidification à contact indirect, des matériaux à revêtement anticorrosifs sont proposés et testés. Pour la déshumidification à contact direct, les effets du type et de la géométrie des garnissages sur les performances hydrauliques sont étudiés. Des cycles thermodynamiques innovants basés sur la technologie de déshydratation liquide sont proposés. Un cycle de régénération amélioré (IRC) est développé. Comparé aux technologies de récupération de chaleur classiques, l'IRC proposé améliore à la fois la puissance nette et le taux de détente de la turbine en prévenant par ailleurs les problèmes de corrosion.

Low-temperature waste-gas heat sources (< 120-150°C) exiting several industrial processes could be recovered for electricity production and constitute an effective mean to reduce primary energy consumption and carbon dioxide emissions. However, technical barriers such as low conversion efficiency, large needed heat transfer area, and the presence of chemically corrosive substances associated with high moisture content when operating in harsh environment impede their wider application. This thesis focuses on particularly energy-hungry industrial sectors characterized by presently unsolved challenges in terms of environmentally hostile low-temperature heat sources. Existing thermodynamic cycles based on Organic Rankine Cycle (ORC) are adapted and optimized for this temperature level. Two conventional heat recovery methods are studied more particularly: indirect and direct contact dehumidification. Optimized design methods for heat exchangers are elaborated and experimentally validated. For the indirect contact dehumidification, advanced anti-corrosion coated materials are proposed and laboratory tested. For the direct contact dehumidification, the effects of packing material and geometry on the corresponding hydraulic performances…

Advisors/Committee Members: Clodic, Denis (thesis director).

Subjects/Keywords: Valorisation de la chaleur à basse température; Cycle de Rankine Organique (ORC); Déshumidification par contact indirect; Déshumidification par contact direct; Déhumidification par absorption; Low-temperature heat valorization; Organic Rankine Cycle (ORC); Indirect contact dehumidification; Direct contact dehumidification; Desiccant dehumidification

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Maalouf, S. (2013). Étude et conception d'un système thermodynamique producteur du travail mécanique à partir d'une source chaude à 120°C : Study and design of a thermodynamic system generating mechanical work from a hot source at 120°C. (Doctoral Dissertation). Paris, ENMP. Retrieved from http://www.theses.fr/2013ENMP0074

Chicago Manual of Style (16th Edition):

Maalouf, Samer. “Étude et conception d'un système thermodynamique producteur du travail mécanique à partir d'une source chaude à 120°C : Study and design of a thermodynamic system generating mechanical work from a hot source at 120°C.” 2013. Doctoral Dissertation, Paris, ENMP. Accessed January 23, 2021. http://www.theses.fr/2013ENMP0074.

MLA Handbook (7th Edition):

Maalouf, Samer. “Étude et conception d'un système thermodynamique producteur du travail mécanique à partir d'une source chaude à 120°C : Study and design of a thermodynamic system generating mechanical work from a hot source at 120°C.” 2013. Web. 23 Jan 2021.

Vancouver:

Maalouf S. Étude et conception d'un système thermodynamique producteur du travail mécanique à partir d'une source chaude à 120°C : Study and design of a thermodynamic system generating mechanical work from a hot source at 120°C. [Internet] [Doctoral dissertation]. Paris, ENMP; 2013. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2013ENMP0074.

Council of Science Editors:

Maalouf S. Étude et conception d'un système thermodynamique producteur du travail mécanique à partir d'une source chaude à 120°C : Study and design of a thermodynamic system generating mechanical work from a hot source at 120°C. [Doctoral Dissertation]. Paris, ENMP; 2013. Available from: http://www.theses.fr/2013ENMP0074


Texas A&M University

2. De La Garza, Guadalupe Ray, III. Effective contact of cattle and feral swine facilitating potential foot-and-mouth disease virus transmission in southern Texas, USA rangeland.

Degree: MS, Wildlife and Fisheries Sciences, 2009, Texas A&M University

For the second study, a web-based survey was developed and distributed to all members of four major health education organizations. A total of 1,925 HEs’ completed the survey and 1,607 responses were utilized in the final analysis. This study indicated that participants had deficient knowledge and unfavorable attitudes toward the CDCproposed genomic competencies. In the third study, a theoretical model was developed to predict HEs’ likelihood to incorporate genomic competencies into their practice. Using techniques from Structural Equation Modeling (SEM), the model was tested with the same data of the second study. Findings supported the proposed theoretical model. While genomic knowledge, attitudes, and self-efficacy were significantly associated with HEs’ likelihood to incorporate genomic competencies into their practice, attitudes was the strongest predictor of likelihood. In summary, these studies indicated that participating HEs had deficient genomic knowledge, unfavorable attitudes toward a set of CDC-proposed genomic competencies, and low likelihood to adopt genomic competencies into health promotion. Relevant training should be developed and advocated. As the SEM analysis results indicated the survey findings supported the proposed theoretical model, which can be utilized to steer future training for HEs. statistics, 2) unadjusted inferential statistics, 3) stratified analysis, and 4) multivariable models. My investigation produced results in accord with generally accepted notions in addition to significant findings that interestingly counter current preconceptions. Intraspecies contact was more common than inter-species, with indirect contact occurring more frequently than direct. Direct contact between species occurred extremely rarely. The most important factors that influenced the rate of contact for both species were water, winter, and cultivated fields. Information regarding probability of infectious agent survival and transfer will be used in the future to advance current epidemiological models, including geographicautomata (Ward et al. 2007: In Press) and cellular automata models (Doran and Laffan 2005) to better understand and manage integrated domestic cattle and free-ranging wildlife populations. Such modeling provides essential and necessary knowledge for developing prevention, detection, response, and recovery strategies – employed in advance, during, and after a disease outbreak, respectively. Advisors/Committee Members: Cooper, Susan M. (advisor), Scott, H. Morgan (advisor), Cathey, James C. (committee member), Lopez, Roel R. (committee member).

Subjects/Keywords: effective contact rate; FMDv; epidemiology; wildlife disease management; feral swine; sus scrofa; direct indirect contact; inter-species; intra-species; modeling

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

De La Garza, Guadalupe Ray, I. (2009). Effective contact of cattle and feral swine facilitating potential foot-and-mouth disease virus transmission in southern Texas, USA rangeland. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1387

Chicago Manual of Style (16th Edition):

De La Garza, Guadalupe Ray, III. “Effective contact of cattle and feral swine facilitating potential foot-and-mouth disease virus transmission in southern Texas, USA rangeland.” 2009. Masters Thesis, Texas A&M University. Accessed January 23, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-1387.

MLA Handbook (7th Edition):

De La Garza, Guadalupe Ray, III. “Effective contact of cattle and feral swine facilitating potential foot-and-mouth disease virus transmission in southern Texas, USA rangeland.” 2009. Web. 23 Jan 2021.

Vancouver:

De La Garza, Guadalupe Ray I. Effective contact of cattle and feral swine facilitating potential foot-and-mouth disease virus transmission in southern Texas, USA rangeland. [Internet] [Masters thesis]. Texas A&M University; 2009. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1387.

Council of Science Editors:

De La Garza, Guadalupe Ray I. Effective contact of cattle and feral swine facilitating potential foot-and-mouth disease virus transmission in southern Texas, USA rangeland. [Masters Thesis]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1387


Brno University of Technology

3. Pavlíček, Michal. Tepelné výměníky pro klimatizaci: Heat exchangers for air-conditioning.

Degree: 2018, Brno University of Technology

The thesis is divided into 2 parts. The first part deals with classification and characterization of heat exchangers. The sizing process of plate heat exchangers is described and demonstrated in the second part. Obtained results are compared with real plate heat exchanger produced by Güntner Company. Advisors/Committee Members: Hejčík, Jiří (advisor), Jaroš, Michal (referee).

Subjects/Keywords: Rekuperátory; regenerátory; přímý a nepřímý styk; trubkové; plášťové; deskové tepelné výměníky; přestup tepla; hmotnostní tok; Nusseltovo kritérium; teplosměnná plocha.; Recuperators; regenerators; direct and indirect contact; tube; shell-and-tube; plate heat exchangers; heat transfer; mass flow; Nusselt number; heat transfer surface.

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Pavlíček, M. (2018). Tepelné výměníky pro klimatizaci: Heat exchangers for air-conditioning. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/7430

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Pavlíček, Michal. “Tepelné výměníky pro klimatizaci: Heat exchangers for air-conditioning.” 2018. Thesis, Brno University of Technology. Accessed January 23, 2021. http://hdl.handle.net/11012/7430.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Pavlíček, Michal. “Tepelné výměníky pro klimatizaci: Heat exchangers for air-conditioning.” 2018. Web. 23 Jan 2021.

Vancouver:

Pavlíček M. Tepelné výměníky pro klimatizaci: Heat exchangers for air-conditioning. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/11012/7430.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pavlíček M. Tepelné výměníky pro klimatizaci: Heat exchangers for air-conditioning. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/7430

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.