Investigations on stratification devices for hot water heat stores

被引:35
作者
Andersen, E. [1 ]
Furbo, S. [1 ]
Hampel, M. [2 ]
Heidemann, W. [2 ]
Mueller-Steinhagen, H. [2 ]
机构
[1] Tech Univ Denmark, Dept Civil Engn, DK-2800 Lyngby, Denmark
[2] Univ Stuttgart, ITW, D-70550 Stuttgart, Germany
关键词
solar tanks; thermal stratification; inlet stratification pipes; CFD; PIV; LIF;
D O I
10.1002/er.1345
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
The significance of the thermal stratification for the energy efficiency of small solar thermal hot water heat stores is pointed out. Exemplary the thermal stratification build-up with devices already marketed as well as with devices still in development has been investigated experimentally and theoretically, taking into account different realistic operation conditions. The methods (selective temperature measurement, non-invasive field measuring methods PIV and LIF, computational fluid dynamics (CFD)) suitable for the experimental and theoretical analysis of thermal stratification devices are introduced. Copyright (C) 2007 John Wiley & Sons, Ltd.
引用
收藏
页码:255 / 263
页数:9
相关论文
共 14 条
  • [1] AN EXPERIMENTAL-STUDY OF A STRATIFIED THERMAL STORAGE UNDER VARIABLE INLET TEMPERATURE FOR DIFFERENT INLET DESIGNS
    ABUHAMDAN, MG
    ZURIGAT, YH
    GHAJAR, AJ
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1992, 35 (08) : 1927 - 1934
  • [2] ANDERSEN E, 2005, P ISES SOL WORLD C O
  • [3] ANDERSEN E, 2004, P EUR 2004 FREIB GER, V1, P76
  • [4] Constant flow rate charging characteristics of a full-scale stratified chilled water storage tank with double-ring slotted pipe diffusers
    Bahnfleth, WP
    Song, J
    [J]. APPLIED THERMAL ENGINEERING, 2005, 25 (17-18) : 3067 - 3082
  • [5] Measured and modeled charging of a stratified chilled water thermal storage tank with slotted pipe diffusers
    Bahnfleth, WP
    Song, J
    Cimbala, JM
    [J]. HVAC&R RESEARCH, 2003, 9 (04): : 467 - 491
  • [6] FABRIC STRATIFICATION MANIFOLDS FOR SOLAR WATER-HEATING
    DAVIDSON, JH
    ADAMS, DA
    [J]. JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 1994, 116 (03): : 130 - 136
  • [7] ESSERT H, 1995, THESIS U AUSTRIA
  • [8] GOPPERT S, 2006, P 16 S SOL THERM EN
  • [9] HAMPEL M, 2006, P 16 S SOL THERM EN
  • [10] STRATIFICATION ENHANCEMENT IN LIQUID THERMAL STORAGE TANKS
    LOEHRKE, RI
    HOLZER, JC
    GARI, HN
    SHARP, MK
    [J]. JOURNAL OF ENERGY, 1979, 3 (03): : 129 - 130