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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/22471完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 黃秉鈞 | |
| dc.contributor.author | Jen-Hao Liu | en |
| dc.contributor.author | 劉人豪 | zh_TW |
| dc.date.accessioned | 2021-06-08T04:18:34Z | - |
| dc.date.copyright | 2010-07-28 | |
| dc.date.issued | 2009 | |
| dc.date.submitted | 2010-07-27 | |
| dc.identifier.citation | [1] ASHRAE Equipment Handbook, Stream jet refrigeration equipment, US (1979) 13.1-13.6.
[2] B.J. Huang, J.M. Chang, Empirical correlation of ejector design, Int. J. Refrigeration 22 (1999) 379-388. [3] B.J. Huang, J.M. Chang, C.P. Wang, V.A. Petrenko, A 1-D analysis of ejector performance, Int. J. Refrigeration 22 (1999) 354-364. [4] Ian W. Eames, Ali E. Ablwaifa , Volodymyr Petrenko, Results of an experimental study of an advanced jet-pump refrigerator operating with R245fa, Applied Thermal Engineering 27 (2007) 2833–2840 [5] V. Humberto, C. Sergio, S. P. Guilherme dos, Modelling and hourly simulation of a solar ejector cooling system, Applied Thermal Engineering 26 (2006) 663-672. [6] P. Wimolsiri, L. Per, A year-round simulation of a solar-driven ejector refrigeration system with iso-butane as a refrigerant, Int. J. Refrigeration 30 (2007) 840-850. [7] 吳佳鴻，噴射式太陽能輔助熱泵製冷供熱系統研究，台大機械博士論文(2010)。 [8] M. Sokolov, D. Hershgal, Enhanced ejector refrigeration cycles powered by low grade heat. Part 1. Systems characterization, Int. J. Refrigeration 12 (1990) 351-356. [9] M. Sokolov, D. Hershgal, Enhanced ejector refrigeration cycles powered by low grade heat. Part 2. Design procedures, Int. J. Refrigeration 12 (1990) 357-363. [10] M. Sokolov, D. Hershgal, Enhanced ejector refrigeration cycles powered by low grade heat. Part 3. Experimental results, Int. J. Refrigeration 14 (1991) 24-31. [11] B.J. Huang, V.A. Petrenko, J.M. Chang, C.P. Lin, S.S. Hu, A combined-cycle refrigeration system using ejector-cooling cycle as the bottom cycle, Int. J. Refrigeration 24 (2001) 391-399. [12] 汪金華，熱能輔助熱泵製冷供熱系統研究，台大機械系博士論文(2008)。 [13] B.J. Huang, J.H. Wu, H.Y. Hsu, J.H. Wang, Development of Hybrid Solar-assisted Cooling/Heating System, Accepted for publication in Energy Conversion and Management, 2009. [14] 許晃源，採用變頻循環泵浦之液位控制技術研究，台大機械碩士論文(2009)。 [15] 張俊民，噴射式冷氣系統之研究，台大機械系博士論文(1998)。 [16] Bruce R. Munson, Donald F. Young, Theodore H. Okiishi, “Fundamentals of Fluid Mechanics”, 5th Edition, John Wiley. [17] Man Gyun Na, “Auto-Tuned PID Controller Using a Model Predictive Control Method for the Steam Generator Water Level,” IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 48, NO. 5, OCTOBER 2001. [18] Peter J. Campo, Manfred Morari, “Model Predictive Optimal averaging level control” AIChE J. 35(4) (1989) 579-591. [19] Richard C. Dorf, Robert H. Bishop：『MODERN CONTROL SYSTEMS』,9th Edition, Prentice Hall. [20] 黃秉鈞，系統識別講義，國立臺灣大學機械工程學系。 [21] Gene F. Franklin, J. David Powell, Abbas Emami-Naeini, “Feedback Control of Dynamic Systems”, 5th Edition, Pearson Education. [22] John D. Anderson, “Modern Compressible Flow”, 3rd Edition, McGraw Hill [23] B.J. Huang, C.B. Jiang, F.L. Hu, Ejector performance characteristics and design analysis of jet refrigeration system, ASME J. Gas Turbine and Power 107 (1985) 792-802. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/22471 | - |
| dc.description.abstract | 噴射式製冷系統串聯空調機，能夠幫助空調機製冷，降低耗電，而噴射式製冷系統所需的熱能可由太陽能集熱器提供，故本研究實驗系統主要包含有三項：太陽能集熱器、空調機與噴射式製冷系統。
一般噴射式製冷系統使用水冷式冷凝器作為散熱機制，因此無法運轉於缺水的氣候條件。本研究對於噴射式製冷系統的硬體改良，成功以氣冷式冷凝器取代了水冷式冷凝器，未來噴射式製冷系統可以自由選擇適合的冷凝器，應用範圍更加廣泛。 針對太陽能驅動之噴射式製冷系統，產生器內的液位控制是最大的考驗。本研究開發出產生器液位控制系統，實驗結果證明可以在不穩定的太陽能中維持固定的產生器液位，使噴射式製冷系統能夠穩定運轉。 噴射式製冷系統的運轉成本不低，主要在冷凝器過於消耗電力。根據噴射器特性，本研究提出了冷凝器壓力最佳化概念，並藉由控制器付諸實行，使冷凝器耗電下降60%，增加了應用價值。 | zh_TW |
| dc.description.abstract | A solar-assisted ejector cooling/heating system (SACH-k1) was developed in the present study. SACH-k1 includes three systems, ejector cooling system, inverter-type air conditioner and solar heating system. The cooling effect of ECS generated by solar heat is used to cool the condenser of the A/C, then increase A/C’s COP and reduce the power consumption of the compressor.
It has been noted that ejector cooling system should be designed using an air-cooled condenser in hot climate area because of the water shortage. Thus, SACH-k1 is developed for this purpose and the design details are shown in paper. To utilize solar energy, the liquid level of SACH’s generator needs to be controlled precisely. A liquid level control system is developed in the present study, so that SACH can overcome unstable effect due to generator temperature changes caused by variation of solar irradiation. Further, running cost of ejector cooling system is too high to apply. This study proposes the idea of ejector’s backpressure optimal control and realizes the idea by the optimal control system. As a result, the operating power consumption is decreased about 60%. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T04:18:34Z (GMT). No. of bitstreams: 1 ntu-98-R97522316-1.pdf: 2991856 bytes, checksum: a953cb10622a9d4549545c29092d633f (MD5) Previous issue date: 2009 | en |
| dc.description.tableofcontents | 摘要 I
Abstract III 符號說明 V 目錄 IX 圖目錄 XI 表目錄 XIV 第一章 序論 1 1.1 研究動機 1 1.2 文獻回顧 2 1.2.1 噴射器原理與設計 2 1.2.2 噴射式製冷技術 5 1.2.3 太陽熱能驅動之噴射式製冷系統 8 1.2.4 噴射式製冷系統與空調機結合之複合式系統 9 1.2.5 產生器液位控制技術 16 1.3 研究內容 18 第二章 串聯型太陽能輔助氣冷式噴射式製冷系統之設計 20 2.1 太陽能集熱系統 23 2.2 變頻空調機及冷房 27 2.2.1 變頻空調機規格 28 2.2.2 冷房 31 2.3 噴射式製冷系統 32 2.3.1 噴射器 34 2.3.2 產生器與中間冷卻器 36 2.3.3 冷媒R365mfc循環泵浦與儲液器 40 2.3.4 膨脹閥 42 2.4 氣冷式冷凝器 43 2.4.1 氣冷式冷凝器規格 43 2.4.2 氣冷式冷凝器入口分配管 46 2.5 結果與討論 50 第三章 產生器液位控制研究 51 3.1 產生器液位變化的動態模型推導 53 3.1.1 產生器液位動態模型之統御方程式 58 3.1.2 產生器液位動態微擾模型 65 3.2 產生器液位控制系統設計分析 71 3.3 產生器液位控制系統硬體與軟體製作 78 3.4 產生器液位控制系統整合測試結果 81 第四章 噴射器冷凝壓力最佳化控制研究 88 4.1 冷凝壓力對於噴射式製冷系統的影響 89 4.2 噴射器冷凝壓力最佳控制 93 4.3 噴射器冷凝壓力最佳控制系統硬體與軟體製作 96 4.4 噴射器冷凝壓力最佳化系統整合測試結果 99 第五章 結論與未來展望 104 5.1 結論 104 5.2 未來展望 106 參考文獻 107 附錄 109 A.產生器液位控制各項參數實驗數據 109 B.冷媒R365mfc飽和壓力-溫度性質表與Matlab換算程式 112 | |
| dc.language.iso | zh-TW | |
| dc.subject | 氣冷 | zh_TW |
| dc.subject | 最佳控制 | zh_TW |
| dc.subject | 噴射器 | zh_TW |
| dc.subject | 太陽能 | zh_TW |
| dc.subject | ejector | en |
| dc.subject | solar energy | en |
| dc.subject | air-cooled | en |
| dc.subject | optimum control | en |
| dc.title | 太陽能輔助氣冷式噴射式製冷系統性能最佳化研究 | zh_TW |
| dc.title | A Study of Air-Cooled Condenser and Optimum Performance for Solar-Assisted Ejector Cooling/Heating System | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 98-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 顏瑞和,白先聲 | |
| dc.subject.keyword | 噴射器,最佳控制,氣冷,太陽能, | zh_TW |
| dc.subject.keyword | ejector,optimum control,air-cooled,solar energy, | en |
| dc.relation.page | 116 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2010-07-27 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
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