Handbook of Energy Audit by Albert Thumann

By Albert Thumann

This up to date guide presents a variety of tools and concepts to lessen strength money owed. It provides step by step guidance for 1000s of power conservation possibilities.

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Sample text

It selects optimum equipment operating times and setpoints as a function of electrical demand, time, weather conditions, occupancy, and heating and cooling requirements. The basic control principles for building energy conservation are: • • • • Operate equipment only when needed Eliminate or minimize simultaneous heating and cooling Supply heating and cooling according to actual needs Supply heating and cooling from the most efficient source Building Envelope Energy is saved when the heat exchange between the building and the outside environment is reduced and/or solar and internal heat gains are controlled.

By determining seasonal and base loads, then apportioning energy use among specific building systems such as heating, cooling, lighting and hot water, it becomes easier to identify areas with the greatest savings potential and target the energy audit activities to those systems. Using the Comparative Energy End Use by System in Table 2-1 will assist you in ranking energy end use based on climate zones. While each individual building must be analyzed separately, studies have shown that similar buildings in similar climates tend to demonstrate recurring patterns of energy use.

The first two, the Envelope Audit and the Functional Audit are similar to the audits in commercial buildings but the focus of the improvements may be vastly different. In an industrial plant, for example, Energy Accounting and Analysis 31 the envelope may not be well insulated but the plant may be very thermally heavy. Adding insulation may hinder the ability to reject excess heat. There may also be substantial ventilation and make-up air requirements in the plant that you would not normally have in a commercial facility.

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