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Identification of Pollution Sources in Transient Groundwater Systems
Mahar, Pooran; Datta, Bithin - In: Water Resources Management 14 (2000) 3, pp. 209-227
ofgroundwater pollution sources under transient flow and transportconditions. The proposed optimization model incorporates … processes oftransient flow and transient transport in the groundwater systems.The proposed inverse model identifies unknown … model for identifying the sources of pollutionin transient groundwater systems. Copyright Kluwer Academic Publishers 2000 …
Persistent link: https://www.econbiz.de/10010997569
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Effect of operating parameters on the transient performance of a polymer electrolyte membrane fuel cell stack with a dead-end anode
Gomez, Alberto; Raj, Abhishek; Sasmito, Agus P.; … - In: Applied Energy 130 (2014) C, pp. 692-701
aims at the experimental and numerical evaluation of the effect of the key operating parameters on the transient … area of 300cm2. By employing a validated transient two-phase mathematical model of a PEMFC with a dead-end anode, numerical …
Persistent link: https://www.econbiz.de/10010906285
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ПРЕДСТАВЛЕНИЕ ЭКОНОМИЧЕСКОГО ПРОЦЕССА В ВИДЕ ЗАМКНУТОЙ ДИНАМИЧЕСКОЙ СИСТЕМЫ И ЕГО МАТЕМАТИЧЕСКОЕ ОПИСАНИЕ...
ГРИШИНА C.A. - In: Известия Тульского … (2011) 3, pp. 89-99
Рассматриваются вопросы представления экономического процесса в виде замкнутой динамической системы. Обобщаются и систематизируются материалы по адаптации...
Persistent link: https://www.econbiz.de/10011228973
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Computer simulation of solar cooled buildings in Khartoum
Magzoub, Elsheikh E.; Osman, Elamin A. - In: Renewable Energy 14 (1998) 1, pp. 373-379
The transient state heat transfer formulation has been used to determine the air conditioning cooling load for two … transient conduction heat transfer equations. A computer program was developed to analyse the thermal network and to determine …
Persistent link: https://www.econbiz.de/10010807011
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Numerical study of transient heat transfer in semitransparent porous medium
Ben Kheder, C.; Cherif, B.; Sifaoui, M.S. - In: Renewable Energy 27 (2002) 4, pp. 543-560
Transient solutions were obtained for heat transfer through a semitransparent porous medium placed in a flow passage …
Persistent link: https://www.econbiz.de/10010807180
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Experimental evaluation of local instantaneous heat transfer characteristics in the combustion chamber of air-cooled direct injection diesel engine
Rakopoulos, C.D.; Mavropoulos, G.C. - In: Energy 33 (2008) 7, pp. 1084-1099
separates the engine transient temperature signals into two parts, namely the long- and the short-term response ones, processed … coefficients in the engine cylinder. Analysis of the experimental results reveals interesting aspects of transient engine heat …
Persistent link: https://www.econbiz.de/10010810046
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Study of the effects of various parameters on the transient current density at polymer electrolyte membrane fuel cell start-up
Mishra, Bikash; Wu, Junxiao - In: Renewable Energy 34 (2009) 10, pp. 2296-2307
of different parameters on the transient current density behavior is studied. Single phase and two phase models are …
Persistent link: https://www.econbiz.de/10010804855
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Transients in a time-dependent logistic map
Leonel, Edson D; Kamphorst Leal da Silva, J; Oliffson … - In: Physica A: Statistical Mechanics and its Applications 295 (2001) 1, pp. 280-284
We study the one-dimensional logistic map with parametric perturbation. Using a small periodic function as the perturbation, new attractors may appear. Beside these new attractors, complex attractors exist and are responsible for transients in many trajectories. We observe that each one of these...
Persistent link: https://www.econbiz.de/10010591466
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Comparison between evaporative cooling and a heat pipe assisted thermal loop for a commercial wind tower in hot and dry climatic conditions
Calautit, John Kaiser; Chaudhry, Hassam Nasarullah; … - In: Applied Energy 101 (2013) C, pp. 740-755
Increasing focus on reducing energy consumption has raised public awareness of renewable energy resources, particularly the integration of natural ventilation devices in buildings such as wind towers. The purpose of this paper was to compare the traditional evaporative wind tower technique with...
Persistent link: https://www.econbiz.de/10010594014
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Transient phenomenon of step switching for current or voltage in PEMFC
Hsu, Chun-Ying; Weng, Fang-Bor; Su, Ay; Wang, Chao-Yang; … - In: Renewable Energy 34 (2009) 8, pp. 1979-1985
The transient phenomenon of fuel cell with 5cm2 active area is investigated in this study by current density step …
Persistent link: https://www.econbiz.de/10011044775