Final(Case13)

# Final(Case13) - Joseph Murphy Case 13 Alt ID 1 2 3 4 Desc...

This preview shows pages 1–3. Sign up to view the full content.

Joseph Murphy Case 13 Savings from Discontinuation of Extra Cost for Removal of Alt. ID Desc. Aeration Sludge Total Hardness Turbidity Total Savings 1 Both \$- \$- \$- \$- \$- \$- \$- 2 Aeration \$- \$275.00 \$275.00 \$1,380.00 \$469.00 \$1,849.00 \$(1,574.00) 3 Sludge \$2,196.00 \$- \$2,196.00 \$262.00 \$845.00 \$1,107.00 \$1,089.00 4 Neither \$2,196.00 \$275.00 \$2,471.00 \$1,380.00 \$469.00 \$1,849.00 \$622.00 Aeration cost = (40 hp x 0.75 kw/hp x 0.06\$/kwh x 24h/day) /0.90 \$48.00 per day \$1,464.00 per month Savings = 2196 - 1464 = 732 1. If electricty were 0.06\$/kwh the monthly savings would only be \$732. Aeration cost = (40 hp x 0.75 kw/hp x 0.06\$/kwh x 24h/day) /0.80 \$54.00 per day \$1,647.00 per month Savings = 2196 - 1647 = 549 2. Decreasing the efficiency of the aerator motor makes the selection less attractive by offering lower savings per month.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Savings from Discontinuation of Extra Cost for Removal of Alt. ID Desc. Aeration Sludge Total Hardness Turbidity Total Savings 1 Both \$- \$- \$- \$- \$- \$- \$- 2 Aeration \$- \$275.00 \$275.00 \$2,070.00 \$469.00 \$2,539.00 \$(2,264.00)
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 04/11/2010 for the course MST 502 taught by Professor Atals during the Spring '10 term at SUNY IT.

### Page1 / 10

Final(Case13) - Joseph Murphy Case 13 Alt ID 1 2 3 4 Desc...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online