Download Energy Audit of Building Systems: An Engineering Approach, by Moncef Krarti PDF

By Moncef Krarti

Buildings account for nearly half overall fundamental strength use and comparable greenhouse emissions around the world. even supposing present strength platforms are bettering, they nonetheless fall disappointingly wanting assembly applicable limits for potency.

Well-trained power auditors are necessary to the luck of creating strength potency programs—and Energy Audit of establishing platforms: An Engineering technique, moment Edition updates a bestselling advisor to aiding them increase their craft. This e-book outlines a scientific, confirmed technique to hire research ways to verify the effectiveness of a variety of applied sciences and methods which can keep strength and decrease working charges in residential and advertisement constructions.

Useful to auditors, managers, and scholars of power platforms, fabric is prepared into 17 self-contained chapters, each one detailing a particular construction subsystem or power potency know-how. Rooted in validated engineering ideas, this volume:

  • Explores state of the art ideas and applied sciences to lessen power intake in buildings
  • Lays out leading edge strength potency applied sciences and methods, in addition to extra confirmed tools, to estimate strength reductions from conservation measures
  • Provides a number of calculation examples to stipulate functions of methods

To support readers execute and optimize actual construction power audits, the writer offers a number of case reports of latest certain strength audit studies. those comprise effects from box trying out, development power simulation, and retrofit research of current structures, with strategies in response to sound financial research. analyzing a number of subsystems, akin to lighting fixtures, heating, and cooling platforms, it presents an outline of uncomplicated engineering equipment used to make sure and degree real strength mark downs attributed to strength potency tasks. the writer offers simplified calculation easy methods to evaluation their effectiveness and eventually enhance on them. perfect both as a qualified reference or a textual content for carrying on with schooling classes, this booklet fortifies readers’ realizing of establishing strength platforms, paving the best way for destiny breakthroughs.

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Extra info for Energy Audit of Building Systems: An Engineering Approach, Second Edition

Example text

S. 4. The increase in electricity consumption could be even higher without the various energy conservation programs implemented by the federal or state governments and utilities. For instance, it is estimated that the demand-side-management (DSM) programs provided by utilities have saved about 54 billion kWh in electrical energy use during 2002 and over 69 billion kWh in 2007 (EIA, 2009). 5. As expected, industrial ­customers enjoyed the lowest electricity price over the years. Meanwhile, the cost of electricity for residential ­customers remained the highest.

The CAV system is complemented by the FCU system as necessary. Two air-handling units serve the entire building, and about 58 FCUs are located on each floor. • The heating and cooling plant consists of three boilers, six chillers, three cooling towers, and one ice storage tank. 5 Mbtuh (1 unit) • Chillers: 215 tons (5 units) and 240 tons (1 unit) The thermal energy storage system consists of a brine ice-on-coil tank. The charging and discharging hours are 10 and 13, respectively. The TES system is currently controlled using simple and nonpredictive storage-priority controls.

00 2-10 Energy Audit of Building Systems: An Engineering Approach, Second Edition The actual bill may include other components such as fuel adjustment cost and sales taxes. (ii) The cost savings from improved power factor are due to a reduction in the billing demand. , 300 kW). Thus, a reduction of 100 kW in billing demand which results in a reduction of demand charges of: Cost Savings = 100 kW * $20/kW = $ 2,000/month The reader is referred to Chapter 5 to determine the cost-effectiveness for power factor improvement measures.

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