Journal of Energy Engineering: Recent submissions
Now showing items 81-100 of 1411
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Impact of Diesel Nozzle with Micro-Orifice on Performance and Emission Characteristics of Diesel-Fuel and Natural-Gas Compression-Ignition Engine
(ASCE, 2023/12/01)The diesel fuel/natural gas compression ignition engine is an essential approach to achieving low-carbon goals. The injection parameters of the diesel assume a critical role in the combustion process of mixture formation ... -
A Novel Short-Term Power-Load Forecasting Method Based on High-Dimensional Meteorological Data Dimensionality Reduction and Hybrid Deep Neural Network
(ASCE, 2023/12/01)Accurate power load forecasting could provide a scientific basis for the rapid response and stable operation of a modern power system. To take advantage of the meteorological big data to improve short-term forecasting ... -
Insight into Gas Threshold Pressure Gradient and Permeability of Coal Seam: Principle and Method for Field Test
(ASCE, 2023/12/01)The flow regime of gas migration and production in a low-permeability coal seam includes desorption, diffusion, low-velocity nonlinear seepage, and linear seepage. However, the current field test methods of coal seam ... -
Enhancement of Coalbed Methane via Nitrogen Injection in a Coal Mining Area: A Laboratory and Field Study
(ASCE, 2023/12/01)Gas flooding is a key technique for increasing coalbed methane (CBM) production of declining wells in coal mining areas. Nitrogen is clean, pollution-free, low-cost, and relatively safe compared with carbon dioxide. In ... -
Numerical Analysis of the Impacts of Multiscale Fractures on Geothermal Reservoir Capacity
(ASCE, 2023/12/01)A fracture network as the main channel of seepage and heat transfer has been a key focus in an enhanced geothermal system. The fractures in the geothermal reservoir usually have a strong multiscale nature in length, but ... -
Experimental Research of the Characteristics of Microscopic Pore Production during CO2 Displacement in a Shale Oil Reservoir
(ASCE, 2023/12/01)The evaluation method for determining the pore production range during CO2 displacement in shale cores is established based on CO2 displacement experiments, core analysis using online nuclear magnetic resonance (NMR), and ... -
Mechanisms and Influencing Factors of High-Temperature and Pressure Huff-n-Puff Imbibition Process in Continental Shale Oil Reservoirs
(ASCE, 2023/12/01)As continental shale oil is explored and developed on a larger scale, its high starting pressure gradient in the shale matrix poses challenges for flow. This paper investigates the effect of imbibition development and the ... -
The Appropriate Context for the Analysis of the Explosive Mode in Reactive Systems
(ASCE, 8/8/2023 1)The explosive mode that arises in the dynamics of the chemical kinetics term attracts particular attention because it is a mode that tends to drive a reacting system away from equilibrium. This is a slow mode that coexists ... -
Experimental Study on the Droplet Transport and Dynamic Behavior in Flow Channel with Microprotrusions of PEMFC
(ASCE, 7/5/2023 1)Water management plays a crucial role in the performance of proton exchange membrane fuel cells (PEMFC). In this paper, to speed up the removal of water in the flow channel, the microprotrusions are fabricated on the flow ... -
Effect of Pressure on Local Flame Propagation Characteristics of Hydrogen-Rich Syngas Turbulent Premixed Flame
(ASCE, 7/24/2023 )As a clean fuel with low carbon emissions, hydrogen-rich syngas has higher flame propagation speed and higher adiabatic flame temperature than other gaseous fuels, so its local flame propagation characteristics are also ... -
A Fully Coupled Thermomechanical Analysis of Lithium-Ion Batteries with Total Heat Generation Rate
(ASCE, 8/28/2023 )The performance of Lithium-ion batteries (LIBs) is seriously affected by temperature rise and mechanical degradation during the charge or discharge. In this work, a fully coupled thermomechanical model with the total heat ... -
Experimental Inspection of the Influence of Chemical Osmosis on Shale Swelling and Subsequent Wellbore Stability
(ASCE, 8/4/2023 1)Linear swelling and gravimetric ions and water uptake tests were experimentally conducted to examine the effectiveness of osmotically extracting water out of shale in the presence of dilute and concentrated salt solutions. ... -
Influence of Extension Ratio on the Performance of the Modified Savonius Hydrokinetic Turbine
(ASCE, 8/28/2023 )In the present investigation, a modified Savonius hydrokinetic turbine of 0.245 m turbine diameter (D), 0.1 overlap ratio, 0.2 shape factor, and 0.002 m blade thickness (t) has been investigated numerically to ... -
Development of a High-Power Density Diesel Engine with a Heat-Insulation Coating: Application of Ultrahigh-Pressure Fuel Injection
(ASCE, 7/28/2023 )Thermal insulation coating is considered a low heat rejection technology for improving the thermal efficiency of engines in the future. A thermal-insulation-coated piston was used to reduce an engine’s heat loss; however, ... -
Numerical Comparison of Hydrogen and CO2 Storage in Deep Saline Aquifers from Pore Scale to Field Scale
(ASCE, 8/4/2023 1)Underground hydrogen storage (UHS) and carbon dioxide capture and storage (CCS) have been the frontiers of energy transition of petroleum and coal industries. The similarities and differences of UHS and CCS are the key ... -
On the Impact of Temperature on Shale Swelling and Expansion: A Diffuse Double-Layer Perspective
(ASCE, 6/23/2023 )Using a newly developed thermo-linear swelling test, this work investigated the influence of temperature on shale swelling and shrinkage and Debye-Hückel length alterations within the diffuse double layer. Furthermore, the ... -
Experimental Study of Deformation Risk and Interpolation Analysis of Temperature for Water Walls under Flexible Low-Load Conditions
(ASCE, 6/19/2023 )With the development of renewable energy in power generation, a large number of thermal power plants operate under flexible working conditions. To study water wall deformation risk under flexible low-load conditions, a ... -
Design of a Novel Multidimensional Forced-Convections Flow Channel with Both Blockages and Under-Rib Channels for PEMFC
(ASCE, 7/14/2023 )The bipolar plate flow channels are critical to the operation of proton exchange membrane fuel cells (PEMFC). The appearance of a water flood phenomenon at the cathode flow channel affects mass transport capacity and output ... -
Pore-Throat Structure in the Chang 7 Subformation Influencing the Differential Accumulation of Tight Sandstone Oil: Insight from SEM, Rate-Controlled Mercury, and High-Pressure Mercury Results
(ASCE, 7/31/2023 )The complicated pore-throat structure of unconventional resource formations such as tight sandstones influences petroleum accumulation and even exploitation, because the pore-throat structure is difficult to mark. A ... -
Flame Characteristics and Abnormal Combustion of Methane Port Injection and Isooctane Direct Injection with Injection Timings Considered
(ASCE, 6/19/2023 )Natural gas (NG) is a low-carbon fuel that can achieve low carbon emissions and high efficiencies. However, the low mean molecular mass and low energy density of methane result in low engine performance, and blending methane ...