A flood control pumping station is being designed. Three possible pumping scheme are proposed and the relevant costs are shown in Table Q 2 What is the most economical range of pumping times in hours/year for each scheme? Figure Q2 shows the frequency of pumping demand. What is the most economical scheme? The cost of capital may be taken as 20%. Table Q 2 Costs of alternative scheme Scheme A в 120,000 Cost of pumps (RM) Life (years) 180,000 230,000 15 15 20 5, 000 220,000 5, 500 200 ,000 20 5, 500 Maintenance per annum (RM) Cost of pipes (RM) Life (years) Cost of pumping (RM/hour) 150, 000 20 20 50 80 80 10% 30% 40% 20% 1000 2000 3000 4000 5000 Annual pumping hours Frequency of pumping

A flood control pumping station is being designed. Three possible pumping scheme are proposed and the relevant costs are shown in Table Q 2 What is the most economical range of pumping times in hours/year for each scheme? Figure Q2 shows the frequency of pumping demand. What is the most economical scheme? The cost of capital may be taken as 20%. Table Q 2 Costs of alternative scheme Scheme A в 120,000 Cost of pumps (RM) Life (years) 180,000 230,000 15 15 20 5, 000 220,000 5, 500 200 ,000 20 5, 500 Maintenance per annum (RM) Cost of pipes (RM) Life (years) Cost of pumping (RM/hour) 150, 000 20 20 50 80 80 10% 30% 40% 20% 1000 2000 3000 4000 5000 Annual pumping hours Frequency of pumping

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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