在大型發電用鍋爐中，為降低鍋爐燃氣排放溫度，以及提高鍋爐效率，通常會裝置迴轉式空氣預熱器，以作為鍋爐熱回收裝置。本文以一套創新改善流程，對空氣預熱器進行創新結構改善，希望能提升冷空氣的出口溫度。因為提升冷空氣的出口溫度，冷空氣的出口溫度如提升，則進入鍋爐時可減少鍋爐的預熱能量，即可使熱空氣的入口溫度達到所需溫度，如此可減少能源的消耗。
本文結合修正式TRIZ及電腦輔助工程分析軟體改善空氣預熱器的轉子結構之研究過程中，主要先應用修正式TRIZ之方法篩選出建議的創研法則及其說明，藉以思考結構改善的概念設計方式，並產生新的空氣預熱器結構，然後用此新的空氣預熱器結構，再經Fluent軟體模擬其熱流場分佈，並驗證此新的空氣預熱器結構的熱流場的溫度改善。
本文空氣預熱器方案以修正式TRIZ發明方法逐步設計改良空氣預熱器的結構。本文先用修用式TRIZ方法，找出發明法則的3.局部特性的 “a.將一物體或外在環境（動作）由相同成分組成的結構轉變成由不同成分組成的結構”。因此本文先提出將單層圓柱型轉子結構改為雙層圓柱型轉子結構，以增加其冷空氣與熱空氣的接觸面積，提升冷空氣的出口溫度。再進一步為了增加單層圓柱型轉子結構的熱空氣與冷空氣的接觸面積，故本文又用TRIZ發明法則，找出3.局部特性的“c.將物體各零件置於最適合操作的條件下。因此決定用六角形柱子型的轉子，取代圓柱型轉子，因六角形柱子型的轉子其冷空氣與熱空氣的接觸面積較圓柱型轉子大。最後再用一次修正式TRIZ的相同發明法則，找出用如第一個改善案例的雙層結構。故本文又提出用兩層六角型柱子的轉子結構的創新空氣預熱器結構。
最後本文利用可計算熱流場的分析軟體Fluent，進行分析上述用修正式TRIZ方法產生的新的各種空氣預熱器結構的熱空氣出入口及冷空氣出入口的溫度場，模擬的結果可驗證本文所提出的雙層六角型柱子的轉子的創新空氣預熱器結構，可提升冷空氣出口的溫度，進而可減少鍋爐預熱所需能源。

Regarding large boiler for power generation, in order to reduce gas discharge temperature of boiler and enhance efficiency of boiler, air preheater would always be installed to serve as a heat recycling device of boiler. The paper uses a set of innovative improvement process to carry out innovative improvement of the structure of air preheater, intending to increase the temperature of cold air outlet. This is because if the temperature of cold air outlet is increased, when air enters the boiler, the preheated energy of boiler can be decreased, and the temperature of hot air inlet can be made to reach the required temperature. In this way, consumption of energy can be decreased.
In the research process of improvement of the rotor structure of air preheater after combining modified TRIZ with computer-aided engineering analysis software, the paper firstly applies modified TRIZ method for screening of some suggested innovative invention rules and their explanations so as to think about the conceptual design way of structural improvement and produce a new structure for air preheater. Then the paper uses this new air preheater structure. After Fluent software is used to simulate distribution of its thermal and flow fields, the paper proves that the temperature of the thermal and flow fields of this new air preheater structure is improved.
The air preheater project of the paper uses modified TRIZ invention method to step by step design improvement of air preheater structure. First of all, the paper uses modified TRIZ method to find “a. Provide transition from a homogeneous structure of an object or outside environment (outside action) to a heterogeneous structure” under the invention rule “ 3. local quality”. Thus, the paper proposes changing the single-layered cylindrical rotor structure to be double-layered cylindrical rotor structure so as to increase the contact area between its cold air and hot air and increase the temperature of cold air outlet.
Furthermore, in order to increase the contact area between the cold air and hot air of the single-layered cylindrical rotor structure, the paper uses TRIZ invention rules again to find “c. Place each part of the object under conditions most favorable for its operationm” under “3. local quality”. Hence, it is determined to use hexagonal column-shaped rotor to replace cylindrical rotor. This is because the contact area between the cold air and hot air of hexagonal column-shaped rotor is greater than that of cylindrical rotor. Finally, the paper once again uses the same modified TRIZ invention rule to find the double-layered structure of the first improvement case. Therefore, the paper proposes again using the innovative air preheater structure with double-layered hexagonal column-shaped rotor structure.
Lastly, the paper uses the analysis software Fluent that can calculate thermal and flow fields to analyze the new temperature fields of the hot air inlet and outlet as well as the cold air inlet and outlet of the various air preheater structures produced by the above modified TRIZ method. The simulation results can prove that the innovative air preheater structure with double-layered hexagonal column-shaped rotor proposed by the paper can increase the temperature of cold air outlet, and further decrease the energy required for preheating of boiler.

[1].Goldfire Innovator, http://www.invention-machine.com/index.htm
[2].Liu, C. C., and Chen, J. L., “Development of Product Green Innovation Design Method,” Proceedings of EcoDesign : Second International Symposium on Environmentally Conscious Design and Inverse Manufacturing, Tokyo, Japan, No. 7190476, pp.168-173 (2001).
[3].Liu, C. C., and Chen, J. L., “A TRIZ Inventive Product Design Method without Contradiction Information,” The TRIZ Journal, Paper No. 6, http://www.triz-journal.com (2001).
[4].Chang, H. T., and Chen, J. L., “An Approach Combining Extension Method with TRIZ for Innovative Product Design,” Journal of the Chinese Society of Mechanical Engineers, Vol. 25, No.1, pp.13-22 (2004).
[5].Low, M. T., Lamvik, K. W., and Myklebust, O., “Manufacturing a green service: engaging the TRIZ model of innovation,” IEEE Transactions on Electronics Packaging Manufacturing, Vol. 24, Issue 1, pp.10–17 (2001).
[6].Chang, H.T., and Chen, J. L., “The Conflict-Problem-Solving CAD Software Integrating TRIZ into Eco-Innovation,” Advances in Engineering Software, Vol. 35, Issue 8-9, pp.553-566 (2004).
[7].Wang, H., Chen, G., Lin, Z., and Wang, H., “Algorithm of Integrating QFD and TRIZ for the Innovative Design Process,” International HYPERLINK "http://www.inderscience.com/browse/index.php?journalID=5&year=2005&vol=23&issue=1"Journal of Computer Applications in Technology, Vol. 23, Issue 1, pp.41-52 (2005).
[8].Tong, L. H., He, C., and Shen, L., “Automatic Classification of Patent Documents for TRIZ Users,” World Patent Information, Vol. 28(1), Issue 1, pp.6-13 (2006).
[9].Terninko, J., ”The QFD, TRIZ and Taguchi Connection : Customer– Driven Robust Innovation,” The Ninth Symposium on Quality Function Deployment, pp.374-380 (1997).
[10].León-Rovira, N., and Aguayo, H., “A new Model of the Conceptual Design Process using QFD/FA/TRIZ,” The TRIZ Journal. http://www.triz-journal.com/, July (1998).
[11].Apte, P. R., and Mann, D. L., “Taguchi and TRIZ: Comparisons and Opportunities,” The TRIZ Journal, http://www.triz-journal.com/, November (2001).
[12].Mann, D. L., “Assessing the Accuracy of the Contradiction Matrix For Recent Mechanical Inventions,” The TRIZ Journal.http://www.triz-journal.com/, February (2002).
[13].Fey, V., and Rivin, E., “Innovation on Demand: New Product Development Using TRIZ,” Cambridge University Press, UK,(2005).
[14].Savransky, S. D., “Engineering of Creativity –Introduction to TRIZ Methodology of Inventive Problem Solving,” CRC Press, New York, (2000).
[15].鄭振興，「利用知識工程技術進行支撐結構設計評估與設計改善之研究」，國立台灣科技大學機械工程學系，博士論文，台北 (2011)。
[16].黃浩誠，「應用改良之TRIZ理論結合QFD於補償式化學機械拋光終點偵測及補償路徑之改善」，國立台灣科技大學機械工程學系，碩士論文，台北(2007)。
[17 ]STEAM, its generation and use 40th Edition, Babcock & Wilcox a
McDermott company. pp.19-9 ~11 (2000).
[18] Bahnke, G.D. , and Howard, C.P., "The Effect of Longitudinal Heat
Conduction on Periodic-Flow Heat Exchanger Performance"ASME
Journal of Engineering for Power, Series A, Vol.86, pp.105-120 (1964)。
[19].Chung-Hsiung Li, " A Numerical Finite Difference Method for
Performance Evaluation of a Periodic-Flow Heat Exchanger", Journal
of Heat Transfer, Vol.105, pp 611-617 August (1983).
[20].Chi-Liang Lee, "The Optimal Analysis of Thermal Performance in
Rotary Heat Exchanger", Thesis for Master of Science, Department of
Mechanical Engineering, Tatung Institute of Technology, June (1992).
[21].Chi-Liang Lee, ”The Study of Thermal Efficiency of the Gas Air
Heater(GAH) By Several Fuel in Co-generation System", 行政院國家
科學委員會專題研究計畫成果報告。計畫編號:NCS 90-2213-E-237-
001, (August 2001~July 2002)。
[22].R.B. Holmberg, "Heat and Mass Transfer in Rotary Heat Exchanger With
Nonhygroscopic Rotor Materials", Transactions of the ASME, Vol. 99, pp.196-202, May (1977).
[23].包德梅，趙振寧，徐治皋，"Matrix Calculating Method in Dynamic
Analysis of Regenerative Air Preheater", 鍋爐技術, pp.6-10, September (1998).
[24].Wei Pan, Zuo-he Chi, Ge Li, Rong-Hua Sun, Hao Zhou, Xiao Jlang,
and Ke-Fa Cen, "Experimental and Numerical Mode Studies on Cold End Metal Temperature of 600MW Rotating Air Heater", Journal of Zhejiang University(Engineering Science)，Vol.36 No.5, pp.494-497, September (2002).
[25].Hua-Jin Hu, and Zhi-Gao Xu, "Calculating Method Study of the Heat
Transfer Characteristics for the Tri-Sector Air Prehaater" Power
Engineering, Vol.18 No.1, pp. 54-57 February (1998).
[26].Jun-hu Zh, Wei-Juan Yang, Yan-Tao Jin, Zhi-Jun Zh, Xin-Yu Cao,
and Ke-Fa Cen, "Research on the Heat Balance Calculation of the Tri-Section Regenerative Air Prehaeter" Power Engineering,Vol.23 No.6，pp.2810-2813, December (2003).
[27].Wei LENG, Dao-Lun Chen, and Zhi-Lun Zhang, " Heat Exchange
Calculation of a Regenerative Air Heater with Analytical Method"， Proceedings of the CSEE, Vol.25 No.3, pp. 141-146, February (2005).
[28].Chang-quing Li, and Chang-Liang Liu, " The Dynamic Model of Regenerative Air Preheater for Power Plant" , Journal of North China Institute of Electric Power, No.3, pp.71-76 (1993).
[29].Ljungstorm Air Preheater Maintenance Seminar, ABB Air Perheater INC. June (1993).
[30].M. Necati Ozisik,”Finite Difference Methods in Heat Transfer",CRC Press, INC.(1994).
[31].Heat Transfer wit Application, International Edition, KIRK D. HAGEN.
[32] Mochizuki, M., Saito, Y., Goto, K., and Nguyen, T., “Hinged Heat
Pipe for Cooling Notebooks PCs”, IEEE SEMI-THERM
Symposium, pp. 64-72 (1997).
[33] Xie, H., Ali, A., and Bhatia, R., “The Use of Heat Pipes in Personal
Computers”, InterSociety Conference on Thermal Phenomena, pp.
442-446 (1998).
[34] Oomi, M., Fukumoto, T., and Sotani, J., “A Heat-Pipe System for a
Desktop Computer”, Advances in Electronic Packaging, Vol. 2, pp.
1951-1955 (1999).