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Author:

Zhang, Cancan (Zhang, Cancan.) | Lu, Yuanwei (Lu, Yuanwei.) (Scholars:鹿院卫) | Shi, Suli (Shi, Suli.) | Wu, Yuting (Wu, Yuting.)

Indexed by:

EI Scopus SCIE

Abstract:

The single tank molten salt thermal energy storage (TES) system has been extensively studied due to its low cost and high efficiency performance. The binary nitrates (KNO3+Ca(NO3)(2)) is selected as heat storage medium in this study, which the melting point is 116.9 degrees C. This research aims to achieve stable and constant heat discharging performance of the single tank molten salt TES system. Three different inlet velocity conditions such as constant value, manual and automatic adjustment are comparatively studied. The results show that the heat discharging power drops with the heat discharging time increases under constant inlet velocity. The heat discharging time decreases with the increasing of inlet velocity while the heat discharging power increases with the increasing of the inlet velocity. The correlations between the inlet velocity and heat discharging time, the average temperature of molten salt in the single tank are proposed. The heat discharging power of manual and automatic adjustment of inlet velocity is in +/- 10% and +/- 3% fluctuation of the set value. The results could provide practical and effective guide to design the single tank molten salt TES system.

Keyword:

Thermal energy storage Coil heat exchanger Single tank Heat discharging

Author Community:

  • [ 1 ] [Zhang, Cancan]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
  • [ 2 ] [Lu, Yuanwei]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
  • [ 3 ] [Shi, Suli]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
  • [ 4 ] [Wu, Yuting]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 鹿院卫

    [Lu, Yuanwei]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China

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Source :

INTERNATIONAL JOURNAL OF THERMAL SCIENCES

ISSN: 1290-0729

Year: 2021

Volume: 161

4 . 5 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:87

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 13

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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