Thermodynamic study of a LiBr-H2O absorption process for solar heat storage with crystallisation of the solution

被引：46

作者：

N'Tsoukpoe, Kokouvi Edem ^{[1
]}

Perier-Muzet, Maxime ^{[1
]}

Le Pierres, Nolwenn ^{[1
]}

Luo, Lingai ^{[1
]}

Mangin, Denis ^{[2
]}

机构：

[1] Univ Savoie, Polytech Annecy Chambery, CNRS, LOCIE,UMR 5271, F-73376 Le Bourget Du Lac, France

[2] Univ Lyon 1, CNRS UMR 5007, Lab Automat & Genie Proc LAGEP, CPE, F-69622 Villeurbanne, France

来源：

SOLAR ENERGY | 2014年 / 104卷

关键词：

Absorption; Heat storage; Lithium bromide/water; Crystallisation; ENERGY-STORAGE; WATER; SIMULATION; DESIGN;

D O I：

10.1016/j.solener.2013.07.024

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A heat storage process by absorption is studied in this paper. It is devoted to solar domestic systems. Energy and exergy studies are performed on the ideal cycle, and prove the contribution of the solution crystallisation to the system storage density, with an improvement of 22%, without degradation of the exergetic efficiency of the process. A prototype has been built and tested in conditions compatible with domestic solar thermal collectors. The process has been proved successful for heat storage. The heat charging was more efficient than the discharging phase, with respective heat transferred in the range of 1-2 kW and 0.3-0.5 kW, in typical solar domestic conditions. Crystallisation has been observed, and will increase the storage density but discrepancies were found between the ideal solution and the global prototype crystallisation behaviour, possibly due to some impurities presence, corrosion products and a slow dissolution kinetic. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：2 / 15

页数：14

共 47 条

[1] [Anonymous], THESIS U PERPIGNAN V
[2] Bales C., 2005, EVALUATION LAB MEASU
[3] Bales Chris., 2008, FINAL REPORT SUBTASK
[4] Berthemot, 1830, ANN CHIMIE PHYS, V44
[5] Berthemot, 1830, J CHIMIE MED PHARM T, VVI
[6] Berthiaud J., 2006, ATI C MIL IT MAY 14
[7] SOLUBILITY OF LITHIUM BROMIDE IN WATER BETWEEN -5/ DEGREES AND +100 DEGREES C (45 PERCENT TO 70 PERCENT LITHUM BROMIDE)
BORYTA, DA
[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1970, 15 (01) : 142 - &
[8] Dean J.A., 1999, LANGES HDB CHEM, P515
[9] Ostwald-Meyers metastable region in LiBr crystallization - Comparison of measurements with predictions
Duvall, KN
Dirksen, JA
Ring, TA
[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 239 (02) : 391 - 398
[10] Figliola RS., 2010, THEORY DESIGN MECH M

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