Based on the hydro-fracturing mechanism and process, the reasonable water pressure is theoretically analyzed, and then the pressure parameter of hydro-fracturing applicated in the low permeability outburst coal seam with high methane is obtained, finally the reasonable pressure formula of water injection is obtained.
Based on the established hydro-pneumatic active suspension model a united control strategy of variable structure and PID control is designed for vehicle body height control.
A new company called Energy Vault, launched from Bill Gross' Idealab incubator in Pasadena, Calif., has developed a technology, based on the principles of pumped hydro storage, that it claims can slash the cost of energy storage to a fraction of the current price and make renewable energy cost-effective all day, every day. .
Evans et al. [30] assessed different renewable energy technologies (photovoltaics, wind, hydro, geothermal) based on the sustainability indicators.
Abdominal Hydro-MRI based on the US results was subsequently performed to further visualize extent, location, and anatomic details.
The impacts were assessed by comparing the simulated hydro-ecological responses based on the detailed soil spatial information derived from a fuzzy logic-based inference approach with those based on the soil information derived from a conventional soil map.
Complementing preoperative abdominal hydro-MRI, planned based on the findings of the US study, confirmed the suspected vascular malformation of the ileum and exquisitely outlined the extent, location and anatomy.
Vincent et al. [15] proposed a hybrid (solar and hydro) and DG system based on the power system models for powering stand-alone BS sites.
In this paper, a coupled thermo-hydro-chemical (THC) model based on the derivation of non-isothermal chemical-potential equations from Gibbs' free energy is presented to simulate fluid/heat flow behaviors during the leakoff process of hydraulic fracturing.
These institutions pursue the upscaling and improvement of quality, safety, efficiency and reliability of pico-hydro technology through projects based on the design and implementation of demonstration sites and training programs in rural areas.
Based on the observed results, a mathematical model was developed to describe the hydro-thermo-mechanical process.
