Journal of Energy Resources Technology: Recent submissions
Now showing items 841-860 of 3450
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Monitoring Polymer-Enhanced Foam Displacements Through Heterogeneous Porous Media: A Pore-Scale Study
(The American Society of Mechanical Engineers (ASME), 2020)In this work, fundamental understanding of phase displacements involved in polymer-enhanced air foam is investigated which was not well discussed in the available literature. To do this, a series of foam injection experiments ... -
Pressure Transient Analysis for a Finite-Conductivity Fractured Vertical Well Near a Leaky Fault in Anisotropic Linear Composite Reservoirs
(The American Society of Mechanical Engineers (ASME), 2020)Geologic discontinuities usually exist in subsurface permeable formations, where multiple reservoir regions with distinct properties are separated by linear leaky faults. This kind of heterogeneous reservoir is usually ... -
Production Performance Analysis for Multi-Branched Horizontal Wells in Composite Coal Bed Methane Reservoir Considering Stress Sensitivity
(The American Society of Mechanical Engineers (ASME), 2020)Coal bed methane (CBM) significantly contributes to unconventional energy resources. With the development of the drilling technology, multi-branched horizontal wells (MBHWs) have been put into the exploitation of CBM. In ... -
Numerical Simulation of a Naturally Aspirated Natural Gas/Diesel RCCI Engine for Investigating the Effects of Injection Timing on the Combustion and Emissions
(The American Society of Mechanical Engineers (ASME), 2020)The start of injection (SOI) timing has a significant effect on increasing the homogeneity of the air–fuel mixture in an reactivity controlled compression ignition (RCCI) engine. In this paper, the impact of the SOI timing ... -
Assessments of High-Efficient Regenerative Evaporative Cooler Effects on Desiccant Air Cooling Systems
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, the effects of regenerative evaporative coolers on the dry desiccant air cooling system are assessed. Thermodynamic analysis is performed point by point on the unmodified (ɛ = 0.67) and modified (ɛ = 1) ... -
Industrial Process Description for the Recovery of Agricultural Water From Digestate
(The American Society of Mechanical Engineers (ASME), 2020)Currently, the reclamation and reuse of water have not reached their full potential, although more energy is needed to obtain and transport freshwater and this solution has a more serious environmental impact. Agricultural ... -
Single Solution That Reduces Power Plants Heat Rates, Emissions, and Operating Costs
(The American Society of Mechanical Engineers (ASME), 2020)This article presents background and the test results for a NOx control solution applicable to pulverized coal-fired power plants (E-NOx) that resolve the operating challenges related to the use of low/ultra-low-NOx burners ... -
Using Machine Learning Tools to Predict Compressor Stall
(The American Society of Mechanical Engineers (ASME), 2020)Clean energy has become an increasingly important consideration in today’s power systems. As the push for clean energy continues, many coal-fired power plants are being decommissioned in favor of renewable power sources ... -
Development of a High Pressure Dry Coal Feed System for a 100 kWt Oxy-Coal Reactor
(The American Society of Mechanical Engineers (ASME), 2020)A design concept to feed dry coal from a hopper to a 100 kWt pressurized oxy-coal (POC) reactor using CO2 at 2 MPa was developed using transient computational fluid dynamics (CFD) simulations and bench-scale measurements. ... -
Determination of the Intrinsic Gasification Kinetics of a Bituminous Coal Including Product Gas Inhibition and Char Deactivation Under Entrained Flow Conditions
(The American Society of Mechanical Engineers (ASME), 2020)This work provides experimentally obtained data concerning the gasification of bituminous coal under entrained-flow conditions. The main focus lies on the determination of reaction kinetics with and without product gas ... -
Torrefaction of Agricultural Residues: Effect of Temperature and Residence Time on the Process Products Properties
(The American Society of Mechanical Engineers (ASME), 2020)To date, few studies on the potential utilization of agricultural residue torrefaction products have been performed. Thus, torrefaction product characterization aimed at its potential utilization was performed. Wheat–barley ... -
Comparative Analysis Between Different Configurations in a Biomass Gasifier and a Genset for Electrical Energy Production
(The American Society of Mechanical Engineers (ASME), 2020)The effect of different gensets coupled to a downdraft, fixed bed gasifier was investigated, pruning residue from five different tree species was used. This gasifier was designed to power a dual (produced gas/diesel) engine, ... -
Gasification of Torrefied Sewage Sludge With the Addition of Calcium Carbonate
(The American Society of Mechanical Engineers (ASME), 2020)Utilization of sewage sludge, in a way friendly to the environment, is still a subject of intensive investigation. One of the possible solutions is the gasification of sewage sludge. Torrefaction and the use of additive ... -
Modeling of the Coal Particle Behavior in an Ultra-Supercritical Boiler With Large Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2020)Large eddy simulation (LES) is becoming a promising tool for the design and retrofit of utility boilers. It explicitly calculates the large-scale eddies which play an important role in the particle behavior inside the ... -
Predicting Power Plant Equipment Life Using Machine Learning
(The American Society of Mechanical Engineers (ASME), 2020)There are new challenges for plant operators due to the increased share of renewable energy. Plant operators must maintain high reliability and high profits while plants are being required to be more flexible to compensate ... -
Effect of Temperature on the Geological Sequestration of CO2 in a Layered Carbonate Formation
(The American Society of Mechanical Engineers (ASME), 2020)Geological sequestration of carbon dioxide (CO2) in deep saline aquifers is one of the most promising technologies for large-scale CO2 mitigation. Temperature can play a significant role in the ensuing geochemistry, affecting ... -
Process Failure Detection via Recurrence Quantification Analysis in a Slot-Rectangular Spouted Bed
(The American Society of Mechanical Engineers (ASME), 2020)A study was conducted to explore the applicability of recurrence and recurrence quantification analysis (RQA) to the detection of process failures in spouted bed reactor systems. Three different potential failure modes ... -
Leveraging National Laboratory Assets to Address Stability Challenges due to Declining Grid Inertia Using Geographically Distributed Electrical–Thermal Co-Emulation
(The American Society of Mechanical Engineers (ASME), 2020)Due to increased penetration of low-inertia resources into the electric grid, challenges are increasing for maintaining wide-area system stability. Grid stability assessment requires a faithful representation of the ... -
Investigations on Crystallization Processes of Three Oxidic Gasifier Slag Systems
(The American Society of Mechanical Engineers (ASME), 2020)In entrained flow gasifiers, the production of oxidic slag accompanies the gasification process. This slag forms a layer on the refractory walls, flows downwards gravitationally, and is collected in a water quench. Hence, ... -
Development of Real-Time System Identification to Detect Abnormal Operations in a Gas Turbine Cycle
(The American Society of Mechanical Engineers (ASME), 2020)This paper presents a novel online system identification methodology for monitoring the performance of power systems. This methodology was demonstrated in a gas turbine recuperated power plant designed for a hybrid ...