FIXED CAPITAL ESTIMATION I 4 Fixed Capital= Direct Cost Indirect cost o Direct Cost=Onsite offsite E Onsite. Cost of plant facilities shown on flowsheet aka isbl (Inside battery limits E offsite-Cost of supporting facilities(boiler house, waste treatment facilities, shop, lab, offices, etc) aka Osbl (Outside Battery limits ◆ Rule of Thumb offsite-045 Onsite(higher for grassroots plant, lower for established manufacturing complex with excess facilities 10/21/99 Engineering economics 3 310/21/99 Engineering Economics 3 3 FIXED CAPITAL ESTIMATION I t Fixed Capital = Direct Cost + Indirect Cost t Direct Cost = Onsite + Offsite ð Onsite - Cost of plant facilities shown on flowsheet aka ISBL (Inside Battery Limits) ð Offsite - Cost of supporting facilities (boiler house, waste treatment facilities, shop, lab, offices, etc.) aka OSBL (Outside Battery Limits) t Rule of Thumb Offsite ~ 0.45 Onsite (higher for grassroots plant, lower for established manufacturing complex with excess facilities)