Journal of Energy Engineering: Recent submissions
Now showing items 341-360 of 1539
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Thermodynamic, Economic Analysis, and Multiobjective Optimization of a Novel Transcritical CO2 Rankine Cycle with a Vortex Tube
(ASCE, 2021-11-08)The transcritical CO2 (TCO2) Rankine cycle has been receiving more and more attention for the lower irreversible losses and the excellent thermophysical characters of CO2. However, it is hard to condense CO2 to liquid due ... -
Geothermal Energy Exploitation and Power Generation via a Single Vertical Well Combined with Hydraulic Fracturing
(ASCE, 2021-10-18)A method of single vertical well combined with hydraulic fracturing is proposed to prevent short circuits and enhance heat mining. The technical and economic feasibilities of geothermal energy exploitation from a deep ... -
Dynamic Multiobjective Optimal Dispatch of Distribution Network Considering Time of Use–Based Demand Response
(ASCE, 2021-12-24)A dynamic dispatch program schedules the controllable generation units during the entire dispatch period to minimize the economic cost and increase other benefits. On the other hand, demand response (DR) improves energy ... -
An Analytical 2D Formulation for the Combined Cooling of PCM-Covered Cylindrical Battery Cells
(ASCE, 2021-12-20)Lithium-ion battery packs are being used more and more in high energy, high power applications such as in power devices, drones, and electric or unmanned vehicles. Battery packs require careful heat management to guarantee ... -
Early Prediction of Remaining Useful Life for Grid-Scale Battery Energy Storage System
(ASCE, 12/1/2021)The grid-scale battery energy storage system (BESS) plays an important role in improving power system operation performance and promoting renewable energy integration. However, operation safety and system maintenance have ... -
Porosity Modeling of Huge Thick Carbonates: A Case Study of Lower Paleozoic Carbonates in the Tazhong Uplift, Tarim Basin, China
(ASCE, 12/1/2021)This study provides a solution to determine the porosity evolution of huge thick carbonates accurately using PetroMod version 2016.2 software with a cementation tool. The Lower Paleozoic carbonates from the Tazhong Uplift ... -
Ratios of Siding Depth to Cavity Depth in Mixed Convection of Air Cavity behind Vinyl Siding for Building Envelopes
(ASCE, 12/1/2021)Providing an air cavity behind vinyl siding within a building envelope is an approach to mitigating building moisture-related issues, which also improves the building’s thermal performance. Previous studies commonly assume ... -
Combustion and Emission in a Common Rail Diesel Engine Fueled by Diesel, Palm Oil, Gasoline, and Ethanol Blends under Double-Injection Strategy
(ASCE, 12/1/2021)Palm oil has significant potential for use as fuel for vehicles due to its abundance. However, it is highly viscous and has a high distillation temperature, such that it is difficult to use in engines. This study adds ... -
Combustion Interactions of Blended Chars under Oxidation and Gasification Competition in Oxy–Fuel Condition
(ASCE, 12/1/2021)The combustion interactions during blended coal combustion affect their combustion characteristics, and the combustion interactions under air–fuel conditions have been well studied. However, oxy–fuel combustion considerably ... -
Potential of Di-n-Butyl Ether as an Alternative Fuel for Compression Ignition Engines with Different EGR Rates and Injection Pressure
(ASCE, 12/1/2021)The high-pressure injection strategy for di-n-butyl ether (DBE)-diesel fuel blends reduces particulate matter emissions. Exhaust gas recirculation (EGR) technology was used to decrease NOx emissions. In this study, the ... -
Effect of Inlet Mixture Stratification on Bluff-Body Stabilized, Turbulent, Prevaporized n-Heptane-Air Flames
(ASCE, 10/1/2021)An investigation of the characteristics of turbulent prevaporized n-heptane-air flames, stabilized in the downstream wake region of a stratifier/bluff-body combustor configuration under the effect of inlet fuel-air mixture ... -
Impact of Occupant Behavior on Thermal Performance of the Typical-Composite Walls of a Building
(ASCE, 10/1/2021)Composite walls are widely used in the external walls of buildings for their favorable thermal performance in building energy efficiency. However, the thermal performance difference under various occupant behaviors’ impacts ... -
Hybrid System of Air-Breathing PEM Fuel Cells/Supercapacitors for Light Electric Vehicles: Modeling and Simulation
(ASCE, 10/1/2021)Recently, light electric vehicles such as pedelecs, electric bicycles, and electric scooters have shown excellent potential for short distances. It is essential to control the power required by the electric motor in response ... -
Numerical Simulation Investigation for Stress Deformation and Water Injection Seepage of Coal Microstructure under Uniaxial Compression
(ASCE, 10/1/2021)Water transport in coal is a multiscale, multiphysical process that is affected by the coupling effect of multiple systems, such as pore and microfracture systems. In this study, numerical simulation of the microlevel of ... -
Experimental Study on the Distribution of Temperature and Deformation in the Water Walls of an Opposed Firing Boiler under Variable Load Conditions
(ASCE, 12/1/2021)To study the operational problems of an opposed firing boiler in continuously changing working conditions, the temperature, strain, and thermal stress of water walls were measured to analyze the distribution and relationship ... -
Differences of the Pore Structure and Methane Adsorption/Desorption between Vitrain and Durain of Low-Rank Coals: Case Study in the Huanglong Coalfield, Southern Ordos Basin, China
(ASCE, 10/1/2021)Coal reservoirs are highly heterogeneous, and different macrolithotypes of coal have differences in material composition and pore structure, resulting in different coalbed methane (CBM) adsorption/desorption performance ... -
Maximum Power Generation from Novel Triangular-Shaped PV Array Configurations under Partial Shading Conditions
(ASCE, 10/1/2021)Making photovoltaic (PV) systems more energy efficient is a huge challenge toward their widespread adoption. Partial shading is one of the major contributors of power reduction in PV systems. The interconnection scheme of ... -
Numerical and Experimental Study by Quasi-Dimensional Modeling of Combustion and Emissions in Variable Compression Ratio High-Speed Spark-Ignition Engine
(ASCE, 10/1/2021)This work presents the development and use of a comprehensive, quasi-dimensional, two-zone combustion model aiming at predicting the combustion characteristics, performance, nitric oxide (NO), and carbon monoxide (CO) ... -
Control-Oriented Modeling of Purging Process and Cold Start of Proton-Exchange Membrane Fuel Cell
(ASCE, 10/1/2021)The main purpose of the shutdown purge is to reduce the residual moisture inside the stack and improve the water storage capacity in the cold start process and thereby reduce icing damage. First, by establishing a fuel ... -
Electric Vehicle Charging via Machine-Learning Pattern Recognition
(ASCE, 10/1/2021)This paper presents machine learning valley-filling (MLVF) to enhance plug-in electric vehicle (PEV) charging at the local power level while minimizing the effects of uncontrolled PEV charging. This study investigated ...