Affiliation:
1. School of Computer and Information Engineering, Guizhou university of Commerce, Guiyang, Guizhou, China
Abstract
In order to study the temperature control of the IoT for indirect dual tank
heat storage systems in solar thermal power plants, the author proposes a
refined design method for heat storage systems. Through CFD software FLUENT
analysis, the author proposes a temperature control scheme for storage tanks
in solar thermal power plants and applies this method to the temperature
control and salt injection processes of actual commercial power plants. The
refined design of a systematic heat storage system mainly involves precise
calculation of molten salt content and refined analysis of overall and local
stresses in the storage tank. For molten salt storage tanks with a diameter
of about 30 m, every 1 cm of liquid level design error will result in
economic losses of tens of thousands of Yuan. In addition, the design
process of storage tanks should fully consider temperature control, salt
injection, and some special operating conditions during operation. By
numerically simulating the flow process of flue gas and molten salt in the
storage tank and the real-time wall temperature of the storage tank, a
temperature control scheme that does not exceed the maximum allowable wall
temperature difference of the storage tank is obtained to reduce thermal
stress during the temperature control process of the storage tank, reduce
the risk and failure rate of the storage tank. The temperature control
scheme has achieved good results in practical projects.
Publisher
National Library of Serbia