Design of a solar low temperature steam generation system
Date Issued
1996
Author(s)
Abstract
The three methods employed for solar steam generation are analyzed with respect to
their advantages, operating problems, operational stability, and cost. From this
analysis the steam-flash system is selected because it has advantages with respect
to other systems due to the superiority of the water as a heat transfer fluid, the
relatively low capital cost, and the avoidance of any flow stability problems. The
design of the flash vessel, which is the main part of the system, is then presented.
The flash vessel size and inventory determines how much energy is invested in
heating-up the system in the morning therefore optimisation of the system is
necessary. Finally design graphs for the optimum flash vessel design are given.
These graphs can be used for a quick design of the flash vessel inventory, diameter
and height within the range considered here, up to a collector aperture area of about
2200 m2.
their advantages, operating problems, operational stability, and cost. From this
analysis the steam-flash system is selected because it has advantages with respect
to other systems due to the superiority of the water as a heat transfer fluid, the
relatively low capital cost, and the avoidance of any flow stability problems. The
design of the flash vessel, which is the main part of the system, is then presented.
The flash vessel size and inventory determines how much energy is invested in
heating-up the system in the morning therefore optimisation of the system is
necessary. Finally design graphs for the optimum flash vessel design are given.
These graphs can be used for a quick design of the flash vessel inventory, diameter
and height within the range considered here, up to a collector aperture area of about
2200 m2.
Subjects
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