A Study of Linear Fresnel Solar Collector Reflector …
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ore drying process to reduce LNG consumption [29]. The plant size is 1 MWth and
can produce 1.4 GWh thermal energy per year. Hot pressurized water up to 200 °C
can be generated by this system.
3 LFC Reflector Field Configuration
In the LFC reflector field design, several parameters such as field orientation, number
of reflectors, the width of reflectors, the space between reflectors, and the focal length
of reflectors are considered to improve the optical performance of the collector. In this
section, the effects of these parameters on the collector performance are reviewed,
and important results are tabulated.
3.1 Solar Field Orientation
Usually, solar fields are orientated in the direction of North–South and East–West.
These directions are studied and discussed by many researchers. It was reported that
the higher annual solar energy was obtained for North–South orientation in comparison with the East–West direction [30]. This study makes North–South direction
more renowned in research fraternity. Recent solar fields of Fresdemo and Puerto
Errado I and II are also designed to be oriented in the North–South direction [31–33].
R. Abbas et al. have reported the dependency of orientation on the latitude of the
location. Optimization of the field was done for different altitudes and orientations. It
is concluded that East–West orientation is favorable for high latitude locations since
this direction obtains better efficiencies with less expense. North–South orientation
is proven as a good solution for the solar field which is located in latitudes closer
to the tropics. East–West orientation permits the installation of wider reflectors,
and hence fewer numbers of reflectors are required. In such orientation, the effect
of newly designed configurations, non-uniform width reflectors, and non-uniform
shifts between reflectors are more vital than in fields with North–South orientation.
For North–South direction, the use of non-uniform width of reflectors across the
field does not contribute to increasing efficiency, whereas it adds an extra fabricating
cost. Approximately, 20 reflectors are required for North–South direction [33]. Efficiencies with respect to locations, configurations, and orientations are compared and
reported in Table 3.
3.2 Reflector Location
Shading and blocking of solar radiation are taken care while locating the reflectors.
Reflector distances and reflector mounting heights across the field decide reflector
363
ore drying process to reduce LNG consumption [29]. The plant size is 1 MWth and
can produce 1.4 GWh thermal energy per year. Hot pressurized water up to 200 °C
can be generated by this system.
3 LFC Reflector Field Configuration
In the LFC reflector field design, several parameters such as field orientation, number
of reflectors, the width of reflectors, the space between reflectors, and the focal length
of reflectors are considered to improve the optical performance of the collector. In this
section, the effects of these parameters on the collector performance are reviewed,
and important results are tabulated.
3.1 Solar Field Orientation
Usually, solar fields are orientated in the direction of North–South and East–West.
These directions are studied and discussed by many researchers. It was reported that
the higher annual solar energy was obtained for North–South orientation in comparison with the East–West direction [30]. This study makes North–South direction
more renowned in research fraternity. Recent solar fields of Fresdemo and Puerto
Errado I and II are also designed to be oriented in the North–South direction [31–33].
R. Abbas et al. have reported the dependency of orientation on the latitude of the
location. Optimization of the field was done for different altitudes and orientations. It
is concluded that East–West orientation is favorable for high latitude locations since
this direction obtains better efficiencies with less expense. North–South orientation
is proven as a good solution for the solar field which is located in latitudes closer
to the tropics. East–West orientation permits the installation of wider reflectors,
and hence fewer numbers of reflectors are required. In such orientation, the effect
of newly designed configurations, non-uniform width reflectors, and non-uniform
shifts between reflectors are more vital than in fields with North–South orientation.
For North–South direction, the use of non-uniform width of reflectors across the
field does not contribute to increasing efficiency, whereas it adds an extra fabricating
cost. Approximately, 20 reflectors are required for North–South direction [33]. Efficiencies with respect to locations, configurations, and orientations are compared and
reported in Table 3.
3.2 Reflector Location
Shading and blocking of solar radiation are taken care while locating the reflectors.
Reflector distances and reflector mounting heights across the field decide reflector