Download Handbook of Energy Audits: Sixth Edition by Albert Thumann PDF

April 5, 2017 | Environmental Engineering | By admin | 0 Comments

By Albert Thumann

A finished, useful reference on power auditing in structures and undefined, this booklet presents the entire details required to set up an power audit application. Loaded with types, checklists and convenient operating aids, the publication is a needs to for somebody enforcing an strength audit. thoroughly up-to-date, the 6th variation displays the applied sciences and software program to be had to fine-tune the audit technique. It covers accounting approaches, price of go back, research and software program courses, evaluate instruments for audit strategies, and applied sciences for electric, mechanical, and development structures intimately. There also are new case stories on an strength retrofit software and effort review utilizing FEDS.

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Example text

Figures 2-6 through 2-9 illustrate how energy is used for a typical industrial plant. It is important to account for total consumption, cost, and how energy is used for each commodity such as steam, water, and compressed air, as well as natural gas and electricity. This procedure is required to develop the appropriate energy conservation strategy. The top portion of Figure 2-6 illustrates how much energy is used by fuel type and its relative percentage. The pie chart below the energy use profile shows how much is spent for each fuel type.

Sum the present values, including the initial investment and determine whether the net present value is positive. This method is the one used in determining life cycle costs. Equation for Present Value: P = A × (P/A, I, N) 50 Handbook of Energy Audits Internal Rate of Return By setting the net present value of an investment to zero (the minimum value that would make the investment worthwhile), you can solve the cash flow diagram for the discount rate. If this discount rate is greater than the “hurdle” rate or current interest rate, the investment is sound.

Btu/lb. Btu/lb. Btu/lb. Energy Economic Decision Making 47 Chapter 4 Energy Economics aving determined possible retrofit options for various pieces of equipment or systems within the facility, it is necessary for to develop some method for evaluating the economic basis or comparing the cost effectiveness of competing investments. A number of methodologies have been developed to provide some uniform methods of comparison. This section will discuss the various methods used to evaluate investments in energy conservation.

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