Results 31 to 40 of about 141,196 (301)

Entropy Generation Minimization for Reverse Water Gas Shift (RWGS) Reactors

Entropy, 2018
Thermal design and optimization for reverse water gas shift (RWGS) reactors is particularly important to fuel synthesis in naval or commercial scenarios.
Lei Zhang, Lingen Chen, Shaojun Xia, Chao Wang, Fengrui Sun   +4 more
doaj   +1 more source

Electronic Properties, Linear and Nonlinear Performance of KAgCh (Ch = S, Se) Compounds: A First-Principles Study

Crystals, 2023
In the current study, the peculiar nonlinear optical (NLO) properties of KAgCh (Ch = S, Se) and their structural, electronic, and thermodynamic properties are computed utilizing the FP-LAPW (full-potential linearized augmented plane wave) approach as ...
Taieb Seddik, Debidatta Behera, Mohammed Batouche, Walid Ouerghui, Houda Ben Abdallah, Ram Krishna Sarkar, Mostafa M. Salah, Ahmed Shaker, Sanat Kumar Mukherjee   +8 more
doaj   +1 more source

Numerical Evaluation of Biochar Production Performance of Downdraft Gasifier by Thermodynamic Model

Energies, 2022
A theoretical evaluation of the biochar production process using a biomass gasifier has been carried out herein. Being distinguished from the previous research trend examining the use of a biomass gasifier, which has been focused on energy efficiency ...
Donghoon Shin, Akhil Francis, Purushothaman Vellayani Aravind, Theo Woudstra, Wiebren de Jong, Dirk Roekaerts   +5 more
doaj   +1 more source

Excellent Thermoelectric Performance in KBaTh (Th = Sb, Bi) Based Half-Heusler Compounds and Design of Actuator for Efficient and Sustainable Energy Harvesting Applications

Crystals, 2023
To examine the structural, optoelectronic, thermodynamic, and thermoelectric properties of KBaTh (Th = Sb, Bi) half-Heuslers, we used the full potential, linearized augmented plane wave (FP_LAPW) approach as in the Wien2K simulator.
Debidatta Behera, Boumaza Akila, Rabie Amraoui, Salim Kadri, Sanat Kumar Mukherjee, Mostafa M. Salah, Ahmed Saeed   +6 more
doaj   +1 more source

Maintenance Strategy Optimization of a Coal-Fired Power Plant Cooling Tower through Generalized Stochastic Petri Nets

Energies, 2019
Determining the ideal size of maintenance staff is a daunting task, especially in the operation of large and complex mechanical systems such as thermal power plants.
Arthur H. A. Melani, C. A. Murad, Adherbal Caminada Netto, G. Souza, S. I. Nabeta   +4 more
semanticscholar   +1 more source

Unified Approach to Thermodynamic Optimization of Generic Objective Functions in the Linear Response Regime [PDF]

Entropy, 2016
While many efforts have been devoted to optimizing the power output for a finite-time thermodynamic process, thermodynamic optimization under realistic situations is not necessarily concerned with power alone; rather, it may be of great relevance to optimize generic objective functions that are combinations of power, entropy production, and/or ...
openaire   +2 more sources

Constructal design for dual-pressure axial-flow turbine in organic Rankine cycle

Energy Reports, 2022
Dual-pressure organic Rankine cycle (ORC) has great advantages in low-temperature waste heat utilization systems. There are few studies on optimizing the performance and structure of the dual-pressure turbine, which is a key part of the dual-pressure ORC.
Lingen Chen, Zhixiang Wu, Huijun Feng, Yanlin Ge   +3 more
doaj   +1 more source

Constructal Optimizations for Heat and Mass Transfers Based on the Entransy Dissipation Extremum Principle, Performed at the Naval University of Engineering; a Review

Entropy, 2018
Combining entransy theory with constructal theory, this mini-review paper summarizes the constructal optimization work of heat conduction, convective heat transfer, and mass transfer problems during the authors’ working time in the Naval University of ...
Lingen Chen, Qinghua Xiao, Huijun Feng
doaj   +1 more source

Exploration of magnesium based MgX2O4 (X = Rh, Bi) spinels for thermoelectric applications using density functional theory (DFT)

Journal of Materials Research and Technology, 2020
By using WIEN2k code, we investigated the mechanical and thermoelectric properties of magnesium based MgX2O4 (X = Rh and Bi) spinels. To compute the mechanical behavior of MgX2O4 (X = Rh and Bi), the Perdew-Bruke-Ernzerhof (PBEsol) flavor of generalized ...
Farzana Majid, M. Tauqeer Nasir, Eman Algrafy, Muhammad Sajjad, N.A. Noor, Asif Mahmood, Shahid M. Ramay   +6 more
doaj   +1 more source

Evaluation of a laser powder bed fusion designer Al-Mg-Zr-Si alloy for cold spray additive manufacturing

Materials & Design, 2022
Metal additive manufacturing (AM) is a constantly developing approach utilized in many novel applications. Most metal AM techniques utilize alloys designed for traditional processing conditions, such as casting, whereas implementing alloys designed for ...
Kyle Tsaknopoulos, Jack Grubbs, Bryer C. Sousa, Matthew Siopis, Aaron Nardi, Danielle L. Cote   +5 more
doaj   +1 more source