Journal of Energy Engineering: Recent submissions
Now showing items 541-560 of 1539
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(American Society of Civil Engineers, 2018)Bad data must be detected in the microgrid because they mislead the decision making of energy management systems (EMSs). The authors propose a robust detection approach that combines an improved robust extreme learning ... -
Impact of Exhaust Gas Recirculation on Performance and Emissions of Free-Piston Electrical Generator Fueled by DME
(American Society of Civil Engineers, 2018)This study presents a novel and interesting investigation regarding the use of exhaust gas recirculation (EGR) in free-piston engines by exploring EGR impact on both engine performance and emissions. A single-cylinder, ... -
Comparative Energy and Exergy Analyses of Air Conditioning Systems Integrated with an Air Enthalpy Exchanger for Different Refrigerants
(American Society of Civil Engineers, 2018)Energy and exergy analyses were conducted for air conditioning (AC) systems with and without an enthalpy exchanger, based on four common refrigerants: R44A, R47C, R41A, and R51A. The investigated AC system had better ... -
Total Supply Capacity of Electric-Gas Combined System Considering Distributed Renewable Generation
(American Society of Civil Engineers, 2018)Total supply capacity (TSC) is a significant index to evaluate the performance of distribution systems, which reflects the safety and economy of power system operations. With the development of the energy internet, it is ... -
Sodium Acetate Trihydrate–Crystallization Inhibitor System for Seasonal Latent Heat Storage
(American Society of Civil Engineers, 2018)Stable supercooling of phase change materials benefits the long-term latent heat storage. Various crystallization inhibitors were adopted to improve the stability of the supercooled sodium acetate trihydrate (SAT) solution, ... -
Experimental Study on Single-Hole Injection of Kerosene into Pressurized Quiescent Environments
(American Society of Civil Engineers, 2018)Experiments on kerosene spray through a single-hole nozzle are carried out under various ambient pressures ranging from 1.4 to 5.6 MPa. High-speed schlieren photography is used to capture the time-dependent images of the ... -
Modeling a Variable-Geometry Turbocharged Diesel Engine under Steady-State and Transient Conditions
(American Society of Civil Engineers, 2018)In the present work, a detailed thermodynamic model of a variable-geometry turbocharged (VGT) truck diesel engine has been built in the GT-Power environment in order to study its operation in terms of turbocharger and ... -
Methane Combustion with Cobalt-Substituted Barium-Lanthanum Hexaaluminate Catalysts Supported on Porous Monolithic Honeycombs
(American Society of Civil Engineers, 2018)Methane combustion with porous honeycomb hexaaluminate catalysts is studied under high temperatures. Cobalt-substituted barium-lanthanum hexaaluminates (Ba1−mLamCoAl11O19±δ) are prepared by co-precipitation procedures and ... -
Second-Law Analysis and Exergoeconomics Optimization of a Solar Tower–Driven Combined-Cycle Power Plant Using Supercritical CO2
(American Society of Civil Engineers, 2018)This paper presents a framework for the first and second law analysis and an exergoeconomic optimization of a solar tower power plant using supercritical CO2, integrated with a combined cycle for electricity production. ... -
Numerical Simulation and Process Optimization of H2 Production from Dimethyl Ether Steam Reforming
(American Society of Civil Engineers, 2018)A numerical study was conducted to optimize the process of hydrogen production from dimethyl ether (DME) steam reforming. The reforming system was composed of a DME steam reforming reactor, a high-temperature water–gas ... -
Hierarchical Multiplicative Model for Characterizing Residential Electricity Consumption
(American Society of Civil Engineers, 2018)This work presents a hierarchical multiplicative framework for modeling the energy consumption of households. The constituents of the model are a lognormally distributed annual consumption, an annual consumption profile ... -
Design and Performance of an Advanced Communication Network for Future Active Distribution Systems
(American Society of Civil Engineers, 2018)The design of a future active distribution network is crucial for the deployment of a smarter grid. The increasing penetration of renewable power generation and of dynamic loads increases the demand for information and ... -
Effects of Indirect and Direct Coal-to-Liquid Fuel on Combustion, Performance, and Emissions in a Six-Cylinder Heavy-Duty Diesel Engine
(American Society of Civil Engineers, 2018)Coal to liquid (CTL) is one of the potential methods to obtain the alternative fuel used in diesel engines. There are two methods to obtain alternative fuel from coal, namely, indirect and direct liquefaction processes. ... -
Advanced Control of DFIG to Enhance the Transient Voltage Support Capability
(American Society of Civil Engineers, 2018)This paper presents a novel method to enhance the low-voltage ride-through (LVRT) capability of a doubly fed induction generator (DFIG) equipped with an energy storage system (ESS) to provide voltage support during grid ... -
Energy Consumption and Cost for Rural and Urban Residents: Case Study of Three Chinese Provinces
(American Society of Civil Engineers, 2018)A survey of 1,244 households in three representative Chinese provinces was undertaken to assess energy consumption and cost for rural and urban residents. After accessing a considerable amount of information on energy ... -
Development and Characterization of Additive-Manufactured Mesoscale Combustor Array
(American Society of Civil Engineers, 2018)Development of a stable and efficient small-scale combustor architecture with comparable performance emission characteristics to large-scale burners is presented. Furthermore, the proposed architecture reduced susceptibility ... -
Experimental Activity on a 100-W IT-SOFC Test Bench Fed by Simulated Syngas
(American Society of Civil Engineers, 2018)This work reports on the testing of a 1-W intermediate-temperature solid oxide fuel cell stack (IT-SOFC). The stack was tested both in feeding conditions with pure hydrogen and with syngas. In the latter case, different ... -
Effects of Electrostatic Voltage and Polarity on Diffusion-Controlled Propane Flame for Enhanced Efficiency
(American Society of Civil Engineers, 2018)In this study, the direct current (DC) electric field effect on the diffusion-swirling flame dynamics and flame temperature profiles was investigated experimentally with the aim of establishing the feasibility of electric ... -
Morphological Characteristics of Chars Obtained from Low-Temperature Pyrolysis of Pulverized Lignite
(American Society of Civil Engineers, 2018)Staged coal conversion, with pyrolysis as its foundation, is one clean and effective coal usage technology. In this study, the structural and morphological characteristics of Ximeng lignite chars obtained from low-temperature ... -
Preliminary Analysis of Direct and Indirect Heat Rejection Systems for a Small sCO2 Brayton Cycle Using an Existing Natural Draft Dry Cooling Tower
(American Society of Civil Engineers, 2018)The supercritical carbon dioxide (sCO2) Brayton cycle has been the focus of much research in recent years because of its high efficiency and compactness. One of the key issues is the heat rejection of about half heat ...