{"title":"Numerical Investigation on Air Flow and Heat Transfer Performance outside Double Row Elliptical Tube with Rectangular Steel-Plate Fins","authors":"Lei Shi, Jin Wang, P. Yan, Xu Quankun","doi":"10.1109/ICEET.2009.187","DOIUrl":"https://doi.org/10.1109/ICEET.2009.187","url":null,"abstract":"The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers. The research on the flow and heat transfer performance outside double row tube is of great important for the optimal design and safe operation of air cooled condensers. Under different frontal wind velocity, the 3 dimensional airside of double row tube is simulated; the flow field and temperature field are analyzed and studied. Data regressions show the equation of pressure drop and mean heat transfer coefficient with frontal wind velocity. It offers good help for the optimal design of direct air cooling system.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"31 1","pages":"745-748"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77943618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Huan Zhao, Pei-hong Wang, Xianyong Peng, Jin Qian, Quan Wang
{"title":"Constrained Optimization of Combustion at a Coal-Fired Utility Boiler Using Hybrid Particle Swarm Optimization with Invasive Weed","authors":"Huan Zhao, Pei-hong Wang, Xianyong Peng, Jin Qian, Quan Wang","doi":"10.1109/ICEET.2009.143","DOIUrl":"https://doi.org/10.1109/ICEET.2009.143","url":null,"abstract":"In order to meet the requirement of high efficiency and low NOx emission combustion of coal-fired boiler, two constrained optimization objectives were designed based on the practical requirement, the one was that maximization of boiler efficiency under NOx emission constraint, and the other one was that minimization of NOx emission under a good boiler performance. Considering the complexity of response characteristics modeling about efficiency and NOx emission, a hybrid particle swarm optimization with invasive weed (IW-PSO) was proposed to optimize the constrained objective functions. In IW-PSO, particle swarm optimization (PSO) and invasive weed optimization (IWO) were integrated in parallel form, and after some iteration, IWO was considered to assist PSO. And in the process of optimizing, variational optimization objective values were tracked by inspection of the results conducted previously. The optimized results indicate that the proposed method can effectively control NOx emission and improve boiler efficiency for different constrained objectives.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"90 1","pages":"564-567"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77950437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study on Magnetic Circuit Structure of Magnetic Valve Controllable Reactor Based on ANSYS","authors":"Ziqiang Wang, Z. Yin, Zhengyu Xie","doi":"10.1109/ICEET.2009.315","DOIUrl":"https://doi.org/10.1109/ICEET.2009.315","url":null,"abstract":"The core cross section area of magnetic valve controllable reactor has a reduced section. By changing the saturation degree of the cross section area, the capacity of the reactor can be changed. In this paper, focusing on a new type of magnetic valve controllable reactor prototype, the precise 2-D field-circuit coupling model of the prototype is established in the finite element analysis software ANSYS. Based on this model, the magnetic state within the core is studied under the combined effects of AC and DC. The theoretical analyses and simulation results show that the analyzed 2-D field-circuit coupling model can reflects the actual reactor transient electromagnetic process accurately.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"35 1","pages":"317-320"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77972121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study on Further Treatment of Coal Coking Wastewater by Ultrasound Wave, Fenton's Reagent and Coagulation","authors":"Jun Shi, Liangbo Zhang","doi":"10.1109/ICEET.2009.425","DOIUrl":"https://doi.org/10.1109/ICEET.2009.425","url":null,"abstract":"The study on further treatment of coal coking wastewater by ultrasound wave, Fenton's reagent and coagulation was carried out in this paper at the first time, Furthermore, this paper discussed the optimum cooperative reaction condition of their combined application and the influence trend of COD by the single factor. The results showed that the removal rates of COD had optimum values with the variation of concentration of ferrous sulfate, the frequency of ultrasound, the concentration of FeCl3, PAM and H2O2, these optimum value were 68.3%, 68.5%, 68.7%, 67.5%, respectively. As a result, it indicated that the best reaction conditions were C¿Fe2+¿=40mg/L, C (H2O2) =55mg/L, C (FeCl3) =5.4mg/L, C (PAM)=1.2mg/L, and the frequency of ultrasound wave was 34.19kHz, Under the reaction conditions, the removal efficiency of COD reached 77.7%. The influence sequence of the COD removal efficiency by the single factor was Fe2+≫ H2O2≫PAM≫the frequency of ultrasound wave ≫ FeCl3. This experimental result provides important reference foundation based on the choice of the treatment scheme of coal coking wastewater.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"3 1","pages":"771-774"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75285414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Soil Solution Extraction Technic in Vadose Zone","authors":"Han Shuangping, Jing Jihong","doi":"10.1109/ICEET.2009.593","DOIUrl":"https://doi.org/10.1109/ICEET.2009.593","url":null,"abstract":"Soil solution sampler is a kind of equipment for soil solution sampling in fieldwork, it can be used for water saturated zone sampling, also it can be used for solution sampling in vadose zone. The well developed equipment offered an important instrument for monitoring on soil solution componential variation and repeated soil solution sampling for laboratory and experimental ground in many research fields. This paper described the ordinary methods of soil solution sampling namely direct soil sampling, flow automatically method and suction method, introduced the operation methods, suitable range and installation of figuline soil solution sampler. As an example of TQ-1 and TQ-2 type soil solution sampler developed by institute of hydrogeology and environmental geology CAGS, it special introduced the soil solution sampler used in fixed position sampling method with broad applicability.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"22 1","pages":"523-525"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75540621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Trace Elements on Anaerobic Digestion of Coking Wastewater","authors":"Yu-ying Li, Bing Li","doi":"10.1109/ICEET.2009.364","DOIUrl":"https://doi.org/10.1109/ICEET.2009.364","url":null,"abstract":"The pretreatment of coking wastewater using ASBR was conducted at 35¿ in this paper. The addition of trace elements to the anaerobic reactor has positive effect on the anaerobic treatment of coking wastewater, but too much or too little of it will have negative effect. At the same time the addition of trace elements will be a large cost in field scale anaerobic wastewater treatment. So it is necessary to assay the optimal addition of trace elements to either enhance the anaerobic treatment efficiency or save the cost of addition trace elements. As the coking wastewater is generated in the coal gas purification and by-product recovery processes, there will be some trace elements remain in wastewater, which can save the cost of addition trace elements to coking wastewater than other wastewater anaerobic treatment. After three months’ stable operation at the optimal conditions and with the general addition of trace elements in ASBR, the optimal addition of trace elements was conducted in this study. In the condition of the addition of 60% of general trace elements into ASBR reactor, the COD removal rate could reach as high as 67.8% and had a high biomass remain in the reactor. But too low concentration of trace elements resulted in poor treatment efficiency. When the amounts of trace elements added into the ASBR decreased from 100% to 60%of general addition, the configuration of granular turned looser and the dominant bacteria in the granular turned from Methanosarcina to Methanosaeta.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"5 1","pages":"519-523"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75605009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research on Prevention and Control Technologies of Harbor Pollution","authors":"Zhu H. Ning, Zhu Kuzhu","doi":"10.1109/ICEET.2009.410","DOIUrl":"https://doi.org/10.1109/ICEET.2009.410","url":null,"abstract":"The rapid development of economy has not only promoted harbor’s development but also caused harbor’s serious pollution. The port pollution will affect harbor’s normal production, impair physical and mental health of staff, and damage natural ecological balance of sea and urban environment. The air pollution, water pollution and noise pollution are main forms of port pollution. These three kinds of pollution are analyzed systematical in this paper. Then the environmental protection plans as well as control strategies are proposed.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"18 1","pages":"713-716"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72879556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study on Coagulation-Microfiltration Combination Process for Treating Luan River Water","authors":"Liang Wang, Yueqi Zhu","doi":"10.1109/ICEET.2009.424","DOIUrl":"https://doi.org/10.1109/ICEET.2009.424","url":null,"abstract":"Study on coagulation-microfiltration combination process for treatment of Luan river water was carried out. The experimental results showed that when the dosage of FeCl3 was 35mg/L, the removal of turbidity was above 95%, the organic matter was above 50%, and recovery of membrane flux reached 81% for the combination process. On the other hand, among the four coagulants (FeCl3, Polymeric Ferric Sulfate, Al2(SO4)3, Polymeric Aluminum Chloride) the iron-based coagulant is superior to Al-based coagulant not only in the removal of turbidity but also the organic matter, and the effect of coagulation was affected by pH. The results also suggested that coagulation could mitigate membrane fouling, and the influent water quality of MF membrane process which followed coagulation could be improved.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"17 1","pages":"767-770"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72717349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental Study on the Equilibrium Moisture Content of Fly Ash","authors":"T. Lv, Qi-chun Zhu, H. Lu","doi":"10.1109/ICEET.2009.547","DOIUrl":"https://doi.org/10.1109/ICEET.2009.547","url":null,"abstract":"An experimental study on the equilibrium moisture content of ash and bottom ash under the various factors was performed, and regression was conducted by semi-empirical equation with experimental data, obtained quite good regression result; the article could provide experimental data for related theory and experimental investigation.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"137 1","pages":"341-344"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73753663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesized Power and Frequency Control Strategies Based on Fuzzy Neural Networks for Wind Power Generation Systems","authors":"Yufei Wang, Yang Fu, Dongdong Li","doi":"10.1109/ICEET.2009.215","DOIUrl":"https://doi.org/10.1109/ICEET.2009.215","url":null,"abstract":"Due to its great potential value in theory and application, synthesized power and frequency control strategies of nonlinear wind power generation systems, especially combining with intelligent control methods, have been a focus in the academe. A synthesized power and frequency control method based on fuzzy neural networks presents nonlinear systems in this paper. The controller parameters were designed to detect the power and frequency fluctuation, and adaptive updating method was introduced to estimate and tracking error. Fuzzy neural networks was used to adjust the system parameters and construct automated power and frequency control, and the tracking error compensation control force, which given by state estimation, was used to realize adaptive power and frequency control. This framework leaded to a simple structure, an accurate detection and a high robustness. The simulation results in a wind power generator control system showed that it could work well with high dynamic performance and control precision under the condition of system parameters’ variation and load torque disturbance.","PeriodicalId":6348,"journal":{"name":"2009 International Conference on Energy and Environment Technology","volume":"27 1","pages":"869-872"},"PeriodicalIF":0.0,"publicationDate":"2009-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73922816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}