TY - JOUR
TI - Internet of things temperature control of indirect dual tank heat storage system in solar photo-thermal power plant
AU - Tian Feng
JN - Thermal Science
PY - 2024
VL - 28
IS - 2
SP - 1477
EP - 1484
PT - Article
AB - 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.