Integraltype

Large-scale, commercial, forced-convection, greenhouse-type dryers are like transparent roof solar barns and are used for solar timber drying kilns (see Figure 7.11). Small-scale forced dryers are often equipped with auxiliary heating.

Another variation of this type of dryer is the solar collector-roof/wall, in which the solar heat collector forms an integral part of the roof and/or wall of

Drying chamber

Solar radiation

3 Air exit

Insulation

Drying chamber

Solar radiation

3 Air exit

Insulation

Trombe Wall
FIGURE 7.10 Schematic diagram of a distributed-type active solar dryer.
Solar Energy Drying

the drying chamber. A solar-roof dryer is shown in Figure 7.12. A collector-wall system is like a Trombe wall, described in Chapter 6, where a black painted concrete block wall with outside glazing forms the solar collector and serves also as a thermal storage.

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  • kedija
    What is a solar dryer?
    8 years ago

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