New PDF release: Handbook of energy engineering

By Albert Thumann

ISBN-10: 0881736961

ISBN-13: 9780881736960

ISBN-10: 162870179X

ISBN-13: 9781628701791

With new chapters on electric approach optimization and ISO 50001, this version covers the newest updates to codes and criteria within the power undefined. It contains chapters on strength monetary research, power auditing, waste warmth restoration, application procedure optimization, HVAC, cogeneration, keep watch over platforms, power administration, compressed air approach optimization and financing strength initiatives. This reference will consultant you step-by-step in utilising the rules of strength engineering and administration to the layout of electric, HVAC, software, approach and development structures for either new layout and retrofit initiatives. The textual content is carefully illustrated with tables, graphs, diagrams and pattern problems.

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Example Problem 2-4 Comment on the after-tax rate of return for the installation of a heatrecovery system given the following: • First Cost $100,000 • Year Savings 36,363 • Straight-line depreciation life and equipment life of 5 years • Income tax bracket 34% Energy Economic Analysis 29 Figure 2-2. 401 PW –100,000 25,656 21,374 17,802 14,845 12,350 Σ – 7,972 Since summation is negative a higher present worth factor is required. Next try is 15%. 497 PW -100,000 + 26,765 + 23,284 + 20,235 + 17,586 + 15,307 + 3,177 Since rate of return is bracketed, linear interpolation will be used.

Energy Efficiency Equipment and Real Property Depreciation Energy conservation equipment, still classified as real property, is depreciated on a straight line basis over a recovery period. Equipment installed in connection with residential real property qualifies for a 271/2-year period, while equipment placed in nonresidential facilities is subject to a 31-1/2-year period. Other real property assets are depreciated over the above period, depending on their residential or nonresidential character.

An overview energy scan of the plant can be made through an aerial survey using infrared equipment. Several companies offer aerial scan services starting at $1500. Aerial scans can determine un­derground stream pipe leaks, hot gas discharges, leaks, etc. Since IR detection and measurement equipment have gained increased importance in the energy audit process, a summary of the fundamentals is reviewed in this section. 75 microm­eters (µm). The infrared or thermal radiation begins at this point and extends to 46 Handbook of Energy Engineering approximately 1000 µm.

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Handbook of energy engineering by Albert Thumann

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