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Long-term optimization of Egypt’s power sector: Policy implications

Mondal, Md. Alam Hossain; Ringler, Claudia; Al-Riffai, … - In: Energy 166 (2019), pp. 1063-1073

This paper presents an evaluation of energy supply strategies for Egypt’s power sector and identifies prospects to meet …

Persistent link: https://www.econbiz.de/10013327012

Multi-objective optimization of the HVAC (heating, ventilation, and air conditioning) system performance

Wei, Xiupeng; Kusiak, Andrew; Li, Mingyang; Tang, Fan; … - In: Energy 83 (2015) C, pp. 294-306

-objective optimization problem is constructed. The problem is solved with a modified particle swarm optimization algorithm producing control …

Persistent link: https://www.econbiz.de/10011264374

A rigorous simulation-based procedure for retrofitting an existing Egyptian refinery distillation unit

Gadalla, Mamdouh A.; Abdelaziz, Omar Y.; Kamel, Dina A.; … - In: Energy 83 (2015) C, pp. 756-765

The simulation of existing crude oil distillation processes is distinctive and difficult owing to its complex nature and interactions, including variable feedstocks, highly integrated processes, tight cuts specifications, and environmental limitations. This study introduces a systematic...

Persistent link: https://www.econbiz.de/10011264401

Entropy generation analysis of laminar forced convection through uniformly heated helical coils considering effects of high length and heat flux and temperature dependence of thermophysical properties

Ahadi, Mohammad; Abbassi, Abbas - In: Energy 82 (2015) C, pp. 322-332

In this study, combined effects of length and heat flux of the coil as well as the effects of temperature dependence of thermophysical properties on entropy generation rates and optimal operation of uniformly heated helical coils with laminar forced convection have been analyzed analytically....

Persistent link: https://www.econbiz.de/10011209453

Analyses and optimization of a supercritical N2O Rankine cycle for low-grade heat conversion

Sarkar, Jahar - In: Energy 81 (2015) C, pp. 344-351

Analyses and operating pressure optimization of the supercritical Rankine cycles with and without regenerator and …

Persistent link: https://www.econbiz.de/10011209462

Impact analysis of sampling time interval and battery installation on optimal operational planning of residential cogeneration systems without electric power export

Wakui, Tetsuya; Yokoyama, Ryohei - In: Energy 81 (2015) C, pp. 120-136

The impact of the sampling time interval for energy demands on the optimal operational planning of residential cogeneration systems without electric power export was analyzed. To improve their operational flexibility, focus was also placed on battery installation. First, an optimal operational...

Persistent link: https://www.econbiz.de/10011209470

Analytical optimization of constructal channels used for cooling a ring shaped body based on minimum flow and thermal resistances

Salimpour, Mohammad Reza; Menbari, Amir - In: Energy 81 (2015) C, pp. 645-651

Constructal theory is invoked to optimize a dendritic path flow structure for minimizing overall flow and thermal resistances. Convective cooling of a ring-shaped body is the aim of this investigation. The construct of flow paths is Y-tree shaped; while the body has heat generation over the area,...

Persistent link: https://www.econbiz.de/10011209475

Normalized performance optimization of supercritical, CO2-based power cycles

Battisti, Felipe G.; Cardemil, José M.; Miller, … - In: Energy 82 (2015) C, pp. 108-118

This study considers the multivariable thermodynamic analysis and optimization of transcritical Rankine cycles … recuperator and re-heating, namely, combined cycle. The optimization process relied on optimization routines and considered latent …

Persistent link: https://www.econbiz.de/10011209487

Model-based optimization strategy of chiller driven liquid desiccant dehumidifier with genetic algorithm

Wang, Xinli; Cai, Wenjian; Lu, Jiangang; Sun, Youxian; … - In: Energy 82 (2015) C, pp. 939-948

This study presents a model-based optimization strategy for an actual chiller driven dehumidifier of liquid desiccant … conditions at the pre-specified set-points, an optimization problem is formulated with an objective function, the constraints of … mechanical limitations and components interactions. Model-based optimization strategy using genetic algorithm is proposed to …

Persistent link: https://www.econbiz.de/10011209515

The optimum is not enough: A near-optimal solution paradigm for energy systems synthesis

Voll, Philip; Jennings, Mark; Hennen, Maike; Shah, Nilay; … - In: Energy 82 (2015) C, pp. 446-456

An optimisation-based decision support methodology is presented for the synthesis of energy supply systems on the conceptual level. Previous work in this field has tended to focus on the generation of the single optimal solution. However, given that mathematical models never perfectly represent...

Persistent link: https://www.econbiz.de/10011209532