Several design conditions and features, related to RES plant, storage system and users, were considered in order to realize a sensitivity analysis aimed to examine, on a yearly base and with one minute time step, interactions among the different micro-grid subsections and to identify the best solutions from both economic and energy point of views.
and categorised into 48 thirty-minute time steps (i.e. daily diurnal demand) over the average day (AD) and peak day (PD).
In addition, to the variation field, we will study its time derivative, which is calculated as the difference in the field between successive 1-minute time steps.
The main drawback of such a design tool is the long computational time required owing to the large number of particles and the minute time-step required to maintain a steady solution while simulating the flow of particulate materials with very fine particles.
Secondly, when normalizing current and power density to geographic planting area 1.6 A/m and 0.44 W/m were achieved, which is higher than reported for a tubular P-MFC (0.15 A/m and 0.22 W/m[ 9, 11]) in a polarization curve with 10 minute time-steps.
Compared to the 5 minute time-step results of Timmers et al., a higher internal resistance could be expected in the flat-plate system, but compared to the 60 minute time-step results, our internal resistance was expected to be lower.
The total calculation time for the benchmark system is 27.02 seconds, which is fast enough for 15 minutes time step control window.
Fig. 1 Relative root mean square deviations (ΔNmF2) between 15-minute time step medians of NmF2 and the values calculated with the LEMI under local steps equal to 0.5 hour (dashed line) and 1 hour (circles).
Figure 1 shows the relative root mean square differences ΔNmF2 between 15-minute time step medians of NmF2 and the LEMI values with ΔLT resolution of 0.5 and 1.0 hour.
We ran the simulation for 10 minutes, with time steps of 0.25 minute, for varying values of η and for varying values for the production of food odors.
