... be fitted with efficient and environmentally friendly engines, and one of the most essential selection parameters to consider is the specific fuel consumption. This parameter can be obtained by means of simulation models with various levels of sophistication, which can be either coded in basic programming...

... ply angles on the dynamic behavior and fatigue life of VAWTs is investigated. Stress-life curves are generated for glass/carbon-polyester VAWT composite blade configurations. Multi-response optimization using the Taguchi technique combined with the response surface methodology is employed to model...

... such as human effort, time, and money. Theil's uncertainty for the model's predictive capabilities (Theil's U2) was less than 0.1189, demonstrating its robustness. Nash-Sutcliffe efficiency was excellent (0.9885–0.9995), with a mean absolute percentage error of less than 1.32%. The engine operating parameters...

... consisting of solid oxide fuel cell, reactor, electric motor, battery, burner, and the heat exchanger is considered. Numerical modeling of hydrogen gas generation in a plug flow reactor is studied. The reactor indicated on-board hydrogen gas generation for an electric motor automobile has not been modeled...

... electricity generation. This study presents a model-based comparison of two thermal storage types within a PTES system: a conventional, single-phase, stratified water-glycol sensible storage system (SGS), and an ideal isothermal, two-phase heat exchanger that freezes a water reservoir (isothermal heat...

...% to minimize particle agglomeration and cohesion forces. Future work will include construction and testing of a full-scale system for the 100 kW t pressurized oxy-coal reactor. Sam Clark from cpfd software provided notable technical support in setting up the barracuda vr model and interpreting...

...Alice Sokolova; Baris Aksanli Residential energy consumption constitutes a significant portion of the overall energy consumption. There are significant amount of studies that target to reduce this consumption, and these studies mainly create mathematical models to represent and regenerate...

... online May 24, 2013. Assoc. Editor: Gregory Jackson. 13 10 2011 07 12 2012 An approach to model coal combustion process to predict and minimize unburned carbon in bottom ash of a large-capacity pulverized coal-fired boiler used in thermal power plant is proposed. The unburned carbon...

... oxidation in a SOFC indicates significantly higher exergetic efficiency compared to the chemical oxidation in partially premixed flames. biogas premixed combustion SOFC modeling exergy analysis emission analysis Biogas represents a potentially important and renewable alternative...

... the ESP and to predict the operational conditions that cause surging. The theoretical study includes a mechanistic model for the prediction of the flow behavior inside the pump. The model comprises a one-dimensional force balance to predict occurrence of the stagnant bubbles at the channel intake...

... the pressure drop in the wellbore should be taken into account. In this paper, an improved predictive model that takes into account the effect of all possible wellbore pressure losses on productivity index of long horizontal well was developed. Results show that the discrepancies in the predictions...

...Shaojun Wang; Faruk Civan Asphaltene precipitation and deposition during primary oil recovery and resulting reservoir formation damage are described by a phenomenological mathematical model. This model is applied using experimental data from laboratory core flow tests. The effect of asphaltene...

...Qiao He; Franz Winter; Ji-Dong Lu A general numerical model is presented here to describe the complex fluid dynamics and the heat transfer process in high-temperature circulating fluidized beds (CFBs). The core-wall concept is used to describe the gas-solid flow in the dilute phase section of CFBs...

...-core mode. A volume model and a shrinking-core reaction model were introduced and modified here to simulate the two stages of combustion process. The simulation results are found to be consistent with the experimental results. Contributed by the Fuels and Combustion Technologies Division...