DocumentCode :
2455990
Title :
Chemical reaction thermodynamic model of Low Pressure CVD for Nano-TiO2 film preparation
Author :
Li, Tao ; Yang, Junfeng ; Zhang, Hong-Chao ; Yuan, Chris
Author_Institution :
Sch. of Mech. Eng., Dalian Univ. of Technol., Dalian, China
fYear :
2012
fDate :
16-18 May 2012
Firstpage :
1
Lastpage :
6
Abstract :
With its unique and perfect performance, Nano-TiO2 film has been widely used in many fields. However, the preparation of Nano-TiO2 film has significant sustainability issues including heavy use of energy and materials, low production efficiency, toxic chemical emissions, etc. In this research, case study is conducted on a Low Pressure Chemical Vapor Deposition (LPCVD) process for nano-TiO2 film preparation. For studying chemical reaction energy consumption of LPCVD process, film preparation techniques, chemical engineering thermodynamics and the law of thermodynamics are used to establish parametric thermodynamic model with such thermodynamic metrics as enthalpy change, entropy change and effective energy change. The heat production rate of chemical reaction has been obtained based on reaction rate function and thermodynamic model. Setting certain chemical reaction condition, the corresponding thermodynamic values of Nano-TiO2 film preparation are calculated. At the same time, the energy utilization and material utilization are obtained. To validate the results, the LPCVD process is simulated with Fluent software. The calculated results are compared with the simulation results and are validated. The research can be the basis theory of processes and equipment energy optimization for Nano-TiO2 film preparation.
Keywords :
chemical vapour deposition; energy consumption; enthalpy; entropy; nanofabrication; nanostructured materials; reaction kinetics theory; reaction rate constants; titanium compounds; Fluent software; LPCVD; TiO2; chemical engineering thermodynamics; chemical reaction condition; chemical reaction energy consumption; chemical reaction thermodynamic model; effective energy change; energy utilization; enthalpy change; entropy change; equipment energy optimization; film preparation techniques; heat production rate; low pressure chemical vapor deposition process; material utilization; nano-TiO2 film preparation; reaction rate function; thermodynamic metrics; thermodynamics law; Chemicals; Entropy; Films; Heating; Mathematical model; Standards; Thermodynamics; Energy efficiency; Low Pressure Chemical Vapor Deposition; Nano-TiO2 film; Thermodynamic model;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sustainable Systems and Technology (ISSST), 2012 IEEE International Symposium on
Conference_Location :
Boston, MA
ISSN :
2157-524X
Print_ISBN :
978-1-4673-2003-0
Type :
conf
DOI :
10.1109/ISSST.2012.6228023
Filename :
6228023
Link To Document :
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