RESULTS AND DISCUSSION
Task 1: Process Specific Energy Audits
Tables 1 and 2 summarize fuel consumption data for trucks and the shovel, respectively. Table 1, covering the entire data range from May 3 to July 2, shows fuel efficiency to be 37 tons/gal. Table 2 shows the average load factor for the January 1 to July 12 period to be 67%. Based on Equation (1), average fuel consumption is estimated to be 35 gals/hr. Based on productivity, shovel fuel efficiency was estimated to be 39 tons/gal. Based on data in Tables 1 and 2, overall fuel efficiency of the truck-and-shovel system is estimated at 19.09 tons/gal.
The energy efficiency of the highwall miner is estimated to be 0.443 tons/kWh.
RESULTS AND DISCUSSION
RESULTS AND DISCUSSION
Task 1: Process Specific Energy Audits
Tables 1 and 2 summarize fuel consumption data for trucks and the shovel, respectively. Table 1, covering the entire data range from May 3 to July 2, shows fuel efficiency to be 37 tons/gal. Table 2 shows the average load factor for the January 1 to July 12 period to be 67%. Based on Equation (1), average fuel consumption is estimated to be 35 gals/hr. Based on productivity, shovel fuel efficiency was estimated to be 39 tons/gal. Based on data in Tables 1 and 2, overall fuel efficiency of the truck-and-shovel system is estimated at 19.09 tons/gal.
The energy efficiency of the highwall miner is estimated to be 0.443 tons/kWh.
RESULTS AND DISCUSSION
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