Specific heat at constant volume (kJ/kg K) Cp : Specific heat at constant pressure (kJ/kg K) C : Blow-by coefficient CI: Compression ignition CNG: Compressed natural gas DI: Direct injection F : Fuel–air ratio h : Specific enthalpy (kJ/kg) htr : Coefficient of heat trans...
R is the ideal gas constant, T is temperature, and F is Faraday's constant. ϕe is the potential in the electrolyte. The dissociation of HSO4− is neglected in this simulation. The effective diffusivity Dieffis corrected according to the Bruggeman correction [33]:(8)Dieff=ε1.5Di ...
1, roof accidents account for the highest percentage and the number of fatalities is second only to gas accidents. Figure 1 HYPERLINK "sps:id::fig1||locator::gr1||MediaObject::0"The proportion of total mine accidents and fatalities in each category2. Full size image Setting coal pillars is...
Therefore, the adsorption capacity remains unchanged under given constant gas pressure (Pan and Connell, 2007; Liu and Harpalani, 2013; Meng et al., 2018b). Deviatoric stress is the dominant factor for coal deformation at the late stage of complete stress-strain (Chen et al., 2016), while...
1 studied the impact initiation threshold of polytetrafluoroethylene/aluminum (73.5 wt% and 26.5 wt%) composites by light gas gun impact experiment, and found that the impact initiation of polytetrafluoroethylene/aluminum was determined by both impact pressure and loading strain rate. Chang2 modified...
Environmental outcomes are often affected by the stochastic nature of the environment and ecosystem, as well as the effectiveness of governmental policy in
GC was equipped with a capillary DB-WAX column (30 m × 0.32 mm, ð 0.25 μm, Agilent, USA) and FID detector; helium was the carrier gas. The oven temperature was initially held at 120 °C for 3 min and raised to 180 °C by increasing 5 °C per min, then raised to 260 °...
Analysis conditions were: injector temperature 250°C, ion source interface temperature 300°C, analysis of masses between 40–350 m/z, electron impact at 70 eV, column head pressure at constant pressure of 59 kPa, column flow 1.02 ml/min, gas linear velocity: 36.8 cm/s, carrier gas: ...
The effect of chicken manure after different disposal methods (water-logged composting, GOF; anaerobic digestion, BR; thermophilic composting, ROF) on vegetable growth and environmental risk was investigated under the tomato-celery-tomato field. Results showed that organic fertilizers significantly increased...
In the present paper, nanofluid mixed convection is investigated in a square cavity with an adiabatic obstacle by using the Lattice Boltzmann method (LBM). This enclosure contains Fe–ethylene-glycol nanofluid and three constant temperature thermal sourc