Value Engineering Case Studies

Examples of how VE focuses on function rather than simply cutting costs.

Case Study 1: The Airport Terminal Flooring

Improving value by analyzing the primary function of a material choice.

During the design phase of a new international airport terminal, the architect specifies high-end, imported Italian marble flooring for the main concourse. The initial cost estimate for this flooring is USD5,000,000USD 5,000,000. The owner feels this is too expensive and initiates a Value Engineering (VE) study.

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Case Study 2: Re-evaluating Structural Steel vs. Concrete

A VE study that resulted in a higher initial cost but vastly improved schedule value.

A developer is planning a 10-story office building in a dense urban core. The initial structural design utilizes cast-in-place reinforced concrete. The initial cost estimate is USD15,000,000USD 15,000,000, and the construction schedule is estimated at 14 months.

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Life Cycle Costing (LCC) Mathematical Examples

Calculating the Present Value of future costs to compare design alternatives.

Example 1: Basic Present Value Calculation for Replacement

Calculating the current cost of a future expenditure using a discount rate.

A facility owner is evaluating a building component that will cost USD50,000USD 50,000 to replace exactly 10 years10 \text{ years} from today. The owner uses a discount rate (interest rate representing the time value of money) of 6%6\% annually.

Calculate the Present Value (PV) of this future replacement cost.

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Example 2: Present Value of an Annual Operating Cost

Calculating the PV of a recurring, uniform series of payments (like an energy bill).

An HVAC system requires USD15,000USD 15,000 per year in electricity to operate. The facility has a study period of 20 years20 \text{ years}. The discount rate is 5%5\%.

Calculate the Present Value of these 20 years of recurring energy payments using the Uniform Series Present Worth formula.

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Example 3: Comprehensive LCC Comparison of Two HVAC Systems

Comparing a cheap, inefficient system against an expensive, efficient system over a 15-year study period.

An owner is deciding between two chillers for a new hospital. The study period is 15 years15 \text{ years} and the discount rate is 6%6\%.

Chiller A (Standard Efficiency):

  • Initial Cost: USD100,000USD 100,000

  • Annual Energy Cost: USD25,000/yearUSD 25,000/\text{year}

  • Salvage Value at Year 15: USD10,000USD 10,000

Chiller B (High Efficiency):

  • Initial Cost: USD150,000USD 150,000

  • Annual Energy Cost: USD15,000/yearUSD 15,000/\text{year}

  • Salvage Value at Year 15: USD25,000USD 25,000

Perform an LCC analysis to determine which chiller provides the better long-term economic value.

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Key Takeaways
  • Value Engineering (VE) is a systematic process focused entirely on analyzing and improving the ratio of function to cost. It is not merely cost-cutting.
  • Life Cycle Costing (LCC) brings all future cash flows (energy, maintenance, replacement, salvage) back to a Day 1 Present Value using a discount rate.
  • LCC provides the mathematical justification for selecting higher-quality, more expensive initial materials if they yield significant operational savings over the life of the asset.
  • A higher discount rate heavily devalues future cash flows, which mathematically favors cheap initial construction over long-term efficiency investments.