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Online since: November 2016
Authors: Gunther Reinhart, Eric Unterberger, Adam Wolf
McKenna et al. [9] formulate this more precisely.
By calculating the integral of the quantities, the indicators compare energy amounts similar to the indicators that McKenna et al. defined.
Table 3: Technical specifications and used dimensions for the modelled regenerative supply system of the Green Factory Bavaria in Augsburg Technology Specifications Amount Final value CHPS Power: 8 kWth / 4 kWel Partial load factor: 0.5 1 Nominal el. power: 4 kWel Heat pump Power: 4 kWth Coefficient of Performance (COP): 4 1 Nominal el. demand: 1 kWel Wind turbine Power: 10 kW Degree of effectiveness: 30 % Hub height: 21 m Rotor diameter: 6.5 m 2 Nominal el. power: 20 kWel Photovoltaic system Area of one module: 1.643 m2 Degree of effectiveness: 16 % Angle of panels: 30 % 188 Covered area: 309 m2 Evaluation of the system.
Finally, the degree of autonomy by McKenna et al. reduced, since the storage system basically causes a smoothing of the residual load.
Table 5: Calculated indicators (Eq. 1-9) for the simulated year 2014 of the modelled energy system of the Green Factory Bavaria in Augsburg with two configurations of electrical storages (dimensions indicated in the heading of the columns) Indicator el. storage 30 kWh / 30 kW el. storage 180 kWh / 30 kW DSSMcKenna 0.7839 0.9053 SCRMcKenna 0.4573 0.5685 DAMcKenna 1.7142 1.5924 DAK&H 0.0697 0.3129 SCRK&H 0.0407 0.1965 DSCSchreiber 0.4573 0.5685 RSSSchreiber 0.7839 0.9053 DSS 0.4555 0.5876 Figure 5: Residual loads of the energy systems including electrical storages for the year 2014 for the modelled Green Factory Bavaria Augsburg sorted by size of power with a zoomed sector between the hours 1000 and 5000 Conclusion and outlook An analysis of the state of the art for the evaluation of energy self-sufficient systems showed a lack of an accurate indicator that considers contemporary power effects.
Online since: July 2011
Authors: Li Fang Zhang, Ying Ying Chen
As seen in Fig. 1, the dye removal efficiency of Zn-Al CLDH was higher than that of Zn-Al LDH in the studied Zn-Al molar ratio range.
The Zn-Al CLDH sample with Zn-Al molar ratio of 3 showed the highest dye removal.
Zn-Al CLDH showed high capacity of dye removal compared with Zn-Al LDH.
Zn-Al CLDH with Zn-Al molar ratio of 3 had a remarkable ability to adsorb dye anions. 2.
El-Shazly: Chemical Engineering Journal Vol, 160(2010) , p. 63
Online since: December 2013
Authors: Ku Zilati Ku Shaari, Suriati Sufian, Erny Haslina Abd Latib, Melissa Suraya Mustfha
The result is in good agreement with Yang J. et al.
[9] Ganan, J., et al., Preparation of activated carbons from bituminous coal pitches.
[12] Mokhtar, M.F., et al., Preparation of Activated Carbon from Durian Shell and Seed.
[17] El-Maghraby, A. and H.
El Deeb, Removal of a Basic Dye from Aqueous Solution by Adsorption using Rice Hulls.
Online since: February 2024
Authors: Noor A. Ahmed, Peter Apata Olubambi, Adeola Borode
EL Mazyani, M.
Abd-El-Nabey, S.
El-Housseiny, H.
El-Kshlan, Effect of Tween-80 Surfactant on the Corrosion Resistance of Zn-Phosphated Steel, Physical Chemistry vol. 7 (2017). 17–26
Leygraf, Numerical simulation of micro-galvanic corrosion of Al alloys: Effect of density of Al(OH)3 precipitate, Electrochim.
Online since: December 2011
Authors: A. El Hami, Rachid Ellaia, W. El Alem
El Alem1,2,a, A.
El Hami2,b and R.
This MO problem is exactly equivalent to the problem solved by Stadler and al. in [12] and used later by Ait brik [1]. 4.2 Results Results found by the NBI-ASA approach were compared with Monte Carlo simulation and NSGA algorithm [1].
El Alem, A.
El Hami and R.
Online since: December 2012
Authors: Mir Esmaeil Masoumi, Zahra Firooz Jahantighy
The first systematic approach for the assessment of hydrogen resources of a hydrogen network was proposed by Towler et al. based on cost and value composite curves [2].
El-Halwagi et al. used graphical method and mass exchanger network (MEN) to minimize fresh sources [4].
Fonseca et al. employed the linear programming model to optimize hydrogen network refinery which leaded to a 30% reduction in hydrogen utility usage [6].
Khajehpour et al. proposed objective functions to minimize waste flows containing hydrogen and reduced hydrogen production [7].
El-Halwagi, F.
Online since: August 2009
Authors: Emad A. Badawi, M. Abdel-Rahman, M.A. Abdel-Rahman, E.M. Hassen, M.O. Abdel-Hamed
Migration of Thermal Vacancies in Quenched Pure AA1050 by Positron Annihilation Emad A.Badawi*, M.A.Abdel-Rahman, E.M.Hassen, M.Abdel-Rahman and M.O.Abdel-Hamed Physics Department, Faculty of Science, El-Minia University, El-Minia, Egypt *emadbadawi@yahoo.com Keywords: AA1050 Ingot, Lifetime, Migration Enthalpy, Thermal Vacancies Abstract A description of positron annihilation spectroscopy (PAS) in solids is given in terms of a trapping model.
Pure Al 165.0ps - - AA1050 170.2ps 203ps 898K 2.
Al Alloy {1050} Mean Lifetim e τ ( ps ) Artificial Aging Time at RT (h.) 8).
The normalization curves for 1050 Al-alloy. 343 K 353 K 348 K 338 K Al-alloy (1050).
Al-alloy 1050.
Online since: July 2020
Authors: Ahmed R. Alhamaoy, Ayad Murad Takhakh, Ali H. Al-Helli
Al-Helli1,a, Ahmed R.
Al-Hamaoy2,b*, Ayad M.
Element Standard [12] Measured Al Bal.
[3] El-Sayed I.
El-Mahallawi and M.
Online since: December 2013
Authors: Tamihiro Gotoh, Kosuke Yazawa, Kento Imai
For the electrical measurements, Au or Al electrodes with planar geometry were contacted to the sample surface and fasten together.
The present value seems to be slightly smaller than 0.38–0.45 eV of previous results reported by Reddy et al [1].
El-Nahass, H.
El-Ghamaz: Opt.
Online since: August 2016
Authors: Rostislav Drochytka, Ester Helanová, Ján Fleischhacker
Drochytka, et al.: Aerated concrete, Brno, VUTIUM (1999) [2] S.
El-Hemaly, E.I.
Al-Wakeel, S.A.
El-Korashy, P.W.
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