By Douglas Harris
Inefficient strength use in constructions is either more and more pricey and unsustainable. certainly, the relief of the power intake of present structures is as least as vital because the layout of recent low-energy constructions. Controlling strength use is something, however it is critical to evaluate or estimate it, and to appreciate the variety of interventions for decreasing its use and the equipment for assessing the associated fee effectiveness of those measures.
This accomplished advisor basically and concisely covers a few of the matters from a theoretical point of view and gives functional, labored examples the place applicable, besides examples of ways the calculations are conducted.
Topics lined include:
- where and the way strength is utilized in buildings
- energy audits
- measuring and tracking power use
- techniques for lowering strength use in buildings
- legislative issues.
It offers a template for instigating the strength administration strategy inside of a company, in addition to information on administration concerns resembling worker motivation, and offers functional information on find out how to hold it via. This e-book should still entice development managers and amenities managers and likewise to scholars of strength administration modules in FE and HE courses.
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Extra info for A Guide to Energy Management in Buildings
Whether the fossil-fuel boiler or electric heat pump is the most cost-efficient supplier of heat is determined by the relative fuel costs. Such a system provides the flexibility to use the cheapest fuel option at the time. 3 Temperatures required for different heat distribution systems Heating system type TemperatureºC Underﬂoor 30–45 Low-temperature radiators 45–55 Radiators 60–90 Warm-air 30–50 Controls for heat pumps The most energy-efficient form of control uses a variable speed drive to the compressor via an inverter.
Formulation of energy-saving solutions The analysis of energy consumption in the building will identify where energy use is high and where there is waste. The means by which waste is reduced are various, and range from no-cost solutions such as changes to occupant behaviour, through low-tech solutions such as adding blinds to the windows, to highly engineered and costly measures such as the installation of a combined heat and power plant. Examples of such measures are given in Chapter 4. When suitable means have been identified, the estimated savings should be calculated, and their cost effectiveness assessed.
Water heating is carried out separately, by electricity. 4 include both heating and cooking energy; separation of the two enables a useful plot to be made. As only one meter is installed covering the total gas use, the data must be manipulated in order to separate it into the two end-uses. During the months May to September inclusive the heating is switched off entirely and no heating can be used in the building, even if the conditions are cool enough to require it. Therefore the gas consumption during these months is entirely due to cooking.