Page 267 - Industrial Process Plant Construction Estimating and Man Hour Analysis

246 Industrial process plant construction estimating and man-hour analysis

Example 12.4.3
Engines and generators (B2)
Work Scope: Set engine, couplings, and generator
Facility—diesel power plant
Data for input:
x: 14, 280, and 280
y: 2792, 924, and 924

Engines, couplings, and generators (B2) Quantity MH
Engine generator set 296962# 14 2792
Spring element 280 924
Anchoring plate with AB 280 924

3000
Man hour 2000 y = -7.0226x + 2890.3 Series1
1000
2
R = 1
0 Linear (Series1)
0 100 200 300 Linear (Series1)
Quantity
FIG. 12.4.3 Engine, coupling, and generator.

2
The coefficient of determination, R , is exactly +1 and indicates a positive fit
(Fig. 12.4.3).
All data points lie exactly on the straight line. The relationship between X and Y
variables is such that as X increases, Y also increases.

Example 12.4.4
Install pipe modules
Work scope: Install pipe modules (B3)
Facility—diesel power plant
Data for input:
x: 14, 112, and 224
y: 480, 600, and 840

Quantity MH

Installation of pipe modules (B3) estimate x y
Pipe module 14 480
Bellows 112 600
Bellows (bolt up) 224 840