ABSTRACT
The total project duration and anticipated engineering and process design staffing can now be easily approximated.
Given:
From:
Then:
So:
And:
So:
And:
Construction Hours Engineering Hours
Approximate TIC or Equipment count
Construction duration from Fig. 5.1 Peak construction staff
Total duration is 7 + 0.8
Engineering lead time is 9 - 7
But 2 months is less than minimum
Total duration is 7 + 3
Engineering hours used during lead period are 350/0 of 28,000
80,000 28,000
7 months 100 workers
9 months
2 months
10 months
9800 hr
Equivalent to: 9800 + 3 mo. 3300 + 160 hr/rno. 21 x 1.6
Also: Phase 1 hours 28,000 x 0.12
3300 hr/rno. 21 persons avg. 34 persons peak
Assuming:
Then:
5-6 process engineers can be made available
Phase 1 duration approx. 4 months