Research on Numerical Simulation of Wind Kinetic Energy Recovery Power Generation at Mine Return Air Wellhead

2021 ◽  
Author(s):  
Xiaohong Gui
Keyword(s):  
Numerical Simulation ◽  
Power Generation ◽  
Kinetic Energy ◽  
Energy Recovery

Experimental study and numerical simulation of the kinetic energy recovery of the mine’s exhaust gas

2021 ◽  
Author(s):  
Jiang Yefeng ◽  
Xiaochuan Li ◽  
Wu Xiang ◽  
Wang Li ◽  
Liu Pinwei ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Kinetic Energy ◽  
Energy Recovery ◽  
Exhaust Gas

Exhaust Energy Recovery using Thermoelectric Power Generation from a Thermally Insulated Diesel Engine

2013 ◽  
Vol 10 (10) ◽  
pp. 1056-1071 ◽  
Author(s):  
B. Karthikeyan ◽  
D. Kesavaram ◽  
S. Ashok Kumar ◽  
K. Srithar
Keyword(s):  
Power Generation ◽  
Diesel Engine ◽  
Thermoelectric Power ◽  
Energy Recovery ◽  
Thermoelectric Power Generation ◽  
Exhaust Energy

Workability of a new kinetic energy recovery system proven mathematically

2021 ◽  
Author(s):  
Shaikh Zishan Suheel ◽  
Ahmad Fazlizan
Keyword(s):  
Kinetic Energy ◽  
Energy Recovery ◽  
Energy Recovery System ◽  
Recovery System

Alternative Crankshaft Mechanisms and Kinetic Energy Recovery Systems for Improved Fuel Economy of Light Duty Vehicles

2011 ◽  
Author(s):  
Alberto Boretti ◽  
Houshsng Masudi ◽  
Joseph Scalzo
Keyword(s):  
Kinetic Energy ◽  
Fuel Economy ◽  
Energy Recovery ◽  
Light Duty ◽  
Light Duty Vehicles

Numerical simulation of a photovoltaic thermoelectric hybrid power generation system

Solar Energy ◽  
2018 ◽  
Vol 174 ◽  
pp. 537-548 ◽  
Author(s):  
H.R. Fallah Kohan ◽  
F. Lotfipour ◽  
M. Eslami
Keyword(s):  
Numerical Simulation ◽  
Power Generation ◽  
Generation System ◽  
Hybrid Power ◽  
Power Generation System

scholarly journals Numerical simulation and decomposition of kinetic energy in the Central Mediterranean: insight on mesoscale circulation and energy conversion

Ocean Science ◽  
2011 ◽  
Vol 7 (4) ◽  
pp. 503-519 ◽  
Author(s):  
R. Sorgente ◽  
A. Olita ◽  
P. Oddo ◽  
L. Fazioli ◽  
A. Ribotti
Keyword(s):  
Numerical Simulation ◽  
Kinetic Energy ◽  
Energy Conversion ◽  
Ocean Model ◽  
Eddy Kinetic Energy ◽  
Tyrrhenian Sea ◽  
Central Mediterranean ◽  
Baroclinic Energy Conversion ◽  
Sicily Channel ◽  
Mean Kinetic Energy

Abstract. The spatial and temporal variability of eddy and mean kinetic energy of the Central Mediterranean region has been investigated, from January 2008 to December 2010, by mean of a numerical simulation mainly to quantify the mesoscale dynamics and their relationships with physical forcing. In order to understand the energy redistribution processes, the baroclinic energy conversion has been analysed, suggesting hypotheses about the drivers of the mesoscale activity in this area. The ocean model used is based on the Princeton Ocean Model implemented at 1/32° horizontal resolution. Surface momentum and buoyancy fluxes are interactively computed by mean of standard bulk formulae using predicted model Sea Surface Temperature and atmospheric variables provided by the European Centre for Medium Range Weather Forecast operational analyses. At its lateral boundaries the model is one-way nested within the Mediterranean Forecasting System operational products. The model domain has been subdivided in four sub-regions: Sardinia channel and southern Tyrrhenian Sea, Sicily channel, eastern Tunisian shelf and Libyan Sea. Temporal evolution of eddy and mean kinetic energy has been analysed, on each of the four sub-regions, showing different behaviours. On annual scales and within the first 5 m depth, the eddy kinetic energy represents approximately the 60 % of the total kinetic energy over the whole domain, confirming the strong mesoscale nature of the surface current flows in this area. The analyses show that the model well reproduces the path and the temporal behaviour of the main known sub-basin circulation features. New mesoscale structures have been also identified, from numerical results and direct observations, for the first time as the Pantelleria Vortex and the Medina Gyre. The classical kinetic energy decomposition (eddy and mean) allowed to depict and to quantify the permanent and fluctuating parts of the circulation in the region, and to differentiate the four sub-regions as function of relative and absolute strength of the mesoscale activity. Furthermore the Baroclinic Energy Conversion term shows that in the Sardinia Channel the mesoscale activity, due to baroclinic instabilities, is significantly larger than in the other sub-regions, while a negative sign of the energy conversion, meaning a transfer of energy from the Eddy Kinetic Energy to the Eddy Available Potential Energy, has been recorded only for the surface layers of the Sicily Channel during summer.

Analysis of kinetic energy recovery system based on inertial flywheel

2018 ◽  
Author(s):  
Ivan Reyes ◽  
Abraham Claudio ◽  
Eligio Flores ◽  
Manuel Lopez
Keyword(s):  
Kinetic Energy ◽  
Energy Recovery ◽  
Energy Recovery System ◽  
Recovery System

Experimental Investigation of Hydraulic-Pneumatic Regenerative Braking System

2015 ◽  
Author(s):  
A. G. Agwu Nnanna ◽  
Erik Rolfs ◽  
James Taylor ◽  
Karla Ariadny Freitas Ferreira
Keyword(s):  
Experimental Investigation ◽  
Kinetic Energy ◽  
Power Output ◽  
Energy Recovery ◽  
Scale Model ◽  
Regenerative Braking ◽  
Gear Pump ◽  
Braking System ◽  
Light Duty ◽  
Overall Efficiency

Design and development of energy efficient vehicles is of paramount importance to the automobile industry. Energy efficiency can be enhanced through recovery of the kinetic energy lost in the form of waste heat during braking. The kinetic energy could be converted into a reusable energy source and aid in acceleration, hence the braking system would contribute to improving the overall efficiency of a vehicle. Hydraulic-Pneumatic Regenerative Braking (HPRB) systems are a hybrid drive system that works in tandem with a vehicle’s engine and drivetrain to improve efficiency and fuel-economy. A HPRB system functions by recovering the energy typically lost to heat during vehicle braking, and storing this energy as a reusable source that can propel a vehicle from a stop. The major advantages of a HPRB system are that a vehicle would not require its engine to run during braking to stop, nor would the engine be required to accelerate the vehicle initially from a stop. The benefit realized by this system is an increase in fuel-efficiency, reduced vehicle emissions, and overall financial savings. An HPRB system aids in slowing a vehicle by creating a drag on the driveline as it recovers and stores energy during braking. Therefore, HPRB system operation reduces wear by minimizing the amount of work performed by the brake pads and rotors. An experimental investigation of Hydraulic-Pneumatic Regenerative Braking (HPRB) system was conducted to measure the system’s overall efficiency and available power output. The HPRB in this study is a 1/10th lab-scale model of a light-duty four wheel vehicle. The design/size was based on a 3500 lbs light-duty four wheel vehicle with an estimated passenger weight of 500 lbs. It was assumed that the vehicle can accelerate from 0–15 mph in 2 seconds. The aim of this work is to examine the effect of heat losses due to irreversibility on energy recovery. The experimental facility consisted of a hydraulic pump, two hydraulic-pneumatic accumulators, solenoid and relief valves, and data acquisition system. The HPRB system did not include any driveline components necessary to attach this system onto a vehicle’s chassis rather an electric motor was used to drive the pump and simulate the power input to the system from a spinning drive shaft. Pressure transducers, Hall effects sensor, and thermocouples were installed at suction and discharge sections of the hydraulic and pneumatic components to measure hydrodynamic and thermos-physical properties. The measured data were used to determine the system’s energy recovery and power delivery efficiency. Results showed that the HPRB system is capable of recovering 47% of the energy input to the system during charging, and 64% efficient in power output during discharging with an input and output of 0.33 and 0.21 horsepower respectively. Inefficiencies during operation were attributed to heat generation from the gear pump but especially due to the piston accumulator, where heat loss attributed to a 12% reduction in energy potential alone.

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