 ผลงานตีพิมพ์ในวารสารวิชาการPatterns of polychaete diversity in selected tropical intertidal hahitatsผู้แต่ง: Frojan, CRSB, Kendall, MA, Paterson, GLJ, Hawkins, LE,  Mr.Sompoch Nimsantijaroen , Dr.Chittima Aryuthaka, Associate Professor , วารสาร: 
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ผลงานตีพิมพ์ในวารสารวิชาการPost-Tsunami Recovery of Shallow Water Biota and Habitats on Thailand's Andaman Coastผู้แต่ง:Kendall, M. A, Dr.Chittima Aryuthaka, Associate Professor, Chimonides, J, Daungnamon, D, Hills, J, Jittanoon, C, Komwachirapitak, P, Kongkaew, V, Mittermeyr, A, Dr.Yaowaluk Monthum, Assistant Professor , Mr.Sompoch Nimsantijaroen, Paterson, G. L. J, Foster-Smith, R, Foster-Smith, J, Thongsin, N, วารสาร:  |
ผลงานตีพิมพ์ในวารสารวิชาการPatterns of polychaete communities in tropical sedimentary habitats: A case study in South-Western Thailandผู้แต่ง:Frojan, CRSB, Hawkins, LE, Dr.Chittima Aryuthaka, Associate Professor, Nimsantijaroen, S, Kendall, MA, Paterson, GLJ, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการZonation on sandy tropical beaches: a case study using Dotilla intermedia (Brachyura: Ocypodidae)ผู้แต่ง:Allen, CJ, Paterson, GLJ, Hawkins, LE, Hauton, C, Clark, PF, Dr.Chittima Aryuthaka, Associate Professor, วารสาร: |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Passivity-based Proportional Integral Tuning Method for a Simple Heat Exchanger Network) ผู้เขียน:Siwaporn Mahitthimahawong, นิติภัทร์ ชัยวัฒนพงศ์, Tony Paterson, ดร.ธงไชย โรหิตะดิษฐ ศรีนพคุณ, ศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractA more realistic heat exchanger model was developed by implementing a bypass control loop. Under the decentralized unconditional stability (DUS) condition, proportional integral (PI) tuning parameters were designed based on the passivity concept to maintain closed-loop stability. The controller’s performance was tested with a simple heat exchanger network (HEN) under various inlet flow rates of hot stream using an Aspen Dynamics simulator. The results indicated that the proposed controller can reject the disturbance and give faster and better setpoint tracking than conventional PI controllers based on the Ziegler-Nichols method. In addition, this proposed controller could handle the entire process at the target setpoint even with sluggishness in one control loop whereas the conventional controller could not operate properly and all responses were too slow. |
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