Category Functional Design of the mCCHP-RES System

Sizing of the System Components

For the functional schemes of the system to become functional models, all the components, both the main and the complementary ones, should be dimensioned and chosen from those available on the market. Sizing of the system components starts from the following observations.

In structural design, both the consumers’ consumption and the suppliers load were evaluated at the level of each month only. Evaluation result is that the con­sumers “monthly consumption” was found, i. e., the amount of energy that each consumer consumes every month of the year. Also, it was found the suppliers monthly load, i. e., the amount of energy that each supplier must give to each month of the year so that, along with others, always cover this variable consumption.

In functional design one take into conside...

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Building the Functional Schemes

The energetic fluxes in the mCCHP system imply generation, transport, and storage of energy. Each of these processes presupposes the manipulation of certain quan­tities of energy. The energy “carriers” may be fuels, thermal agents (usually fluids like water or air), or electrons, depending on the type of energy—thermal or electric.

The circulation of these “carriers” (which is the concrete form by means of which the energetic fluxes are achieved) presupposes the existence of a number of comple­mentary components, which facilitate this circulation. The transport of pellets, the water recirculation pumps, the ventilators, the fuel-power-heat- and cold storages and the heat exchangers may be considered as examples of complementary components.

As available on the market, the main c...

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System Functional Modeling

Nicolae Badea

In establishing the set of structural models and evaluation of their performances (see Chap. “Structural Design of the mCCHP-RES System”), the following simplifi­cations have been taken into account:

• Only the main components of the system have been included in the structure, especially those which generate the thermal or electric energy that the system supplies the residence with.

• Only the relation between the residence consumption and the system’s com­ponents load has been considered, leaving out the system components’ own energetic consumptions.

• Both the consumers’ consumption and the suppliers load were evaluated at the level of each month of the year, and there were no established neither the technical characteristics (installed power, for example) nor...

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Functional Design of the mCCHP-RES System

Nicolae Badea, Alexandra Epureanu, Emil Ceanga, Marian Barbu and Sergiu Caraman

Abstract In order to be shown in detail, the design process algorithm (see Fig. 2 in Chapter “Structural Design of the mCCHP-RES System”) was divided into two stages, namely structural design and functional design. In Chapter “Structural Design of the mCCHP-RES System” was presented the first stage while in this chapter is presented the second. Then, in Chapter “Experimental Case Study” it is shown a concrete example. Here, the functional design was divided into five steps and to each step has been devoted a paragraph. Regarding the contents of steps, this is as following: In the first step (described in Sect. 2...

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