Experimental Study on Latent Heat Storage Characteristics of W/O Emulsion-Supercooling Rate of Dispersed Water Drops by Direct Contact Heat Exchange
Experimental Study on Latent Heat Storage Characteristics of W/O Emulsion-Supercooling Rate of Dispersed Water Drops by Direct Contact Heat Exchange
摘要
Recently, much attention has been paid to investigate the latent heat storage system. Using of ice heat storage system brings an equalization of electric power demand, because it will solved the electric -power-demand-concentration on day-time of summer by the air conditioning. The flowable latent heat storage material, Oil/Water type emulsion, microencapsulated latent heat material-water mixture or ice slurry, etc., is enable to transport the latent heat in a pipe. The flowable latent heat storage material can realize the pipe size reduction and system efficiency improvement. Supercooling phenomenon of the dispersed latent heat storage material in continuous phase brings the obstruction of latent heat storage. The latent heat storage rates of dispersed water drops in W/O (Water/Oil) emulsion are investigated experimentally in this study. The water drops in emulsion has the diameter within 3 ~ 25μm, the averaged water drop diameter is 7.3μm and the standard deviation is 2.9μm. The direct contact heat exchange method is chosen as the phase change rate evaluation of water drops in W/O emulsion. The supercooled temperature and the cooling rate are set as parameters of this study. The evaluation is performed by comparison between the results of this study and the past research. The obtained experimental result is shown that the 35K or more degree from melting point brings 100% latent heat storage rate of W/O emulsion. It was clarified that the supercooling rate of dispersed water particles in emulsion shows the larger value than that of the bulk water.
参考文献20
-
1Hideo Inaba and Shin-ichi Morita,“Fundamental Study ofCold Heat Storage System of O/W-Type Emulsion Hav-ing Cold Latent Heat Dispersion Material (1st Report,Estimation of Thermophysical Properties),,’JSME BVol.59, No.565, pp.2882-2889, (1993).
-
2Hideo Inaba and Shin-ichi Morita,^Fundamental Study ofCold Heat Storage System of O/W-iype Emulsion Hav-ing Cold Latent Heat Dispersion Material (2nd Report,Flow and Cold Heat-Storage Characteristics of Emulsionin a Coiled Double-Tube Heat Exchanger), “JSME BVol.60, No.572, pp. 1422-1429, (1994).
-
3Hideo Inaba, Akihiko Horibe, Hirofumi Tsukamoto andMyoung-Jum Kim,"Heat Storage Characteristics of La-tent Microcapsules Using Hot Air Bubbles by DirectContact Heat Exchange,^JSME B Vol.66, No.645,pp. 1487-1494, (2000).
-
4Hiroyuki Kumano, Akio Saito, Seiji Okawa and YusukeGoto,’’Study on Fundamental Characteristics of TBABHydrate Slurry,”JSME B Vol.72,No.724, pp3089-3095,(2006).
-
5J.P.Bedecarrats, J.Castaing-Lasvignottes, F.Strub andJ.P.Dumas/'Study of a phase change energy storage usingspherical capsules. Part 1 Experimental results,” EnergyConversion and Management, 50, pp2527-2536, (2009).
-
6J.P.Bedecarrats, J.Castaing-Lasvignottes, F.Strub andJ.P.Dumas,”Study of a phase change energy storage usingspherical capsules. Part 2 Numerical modeling,” EnergyConversion and Management, 50,pp2537-2546, (2009).
-
7Rui Yang, Hui Xu and Yingping Zhang,"Preparation,physical property and thermal physical property of phasechange microcapsule slurry and phase change emulsion,”Solar Energy Materials & Solar Cells, 80,pp.405-416,(2003).
-
8Akio Saito, Yoshio Utaka, Atsushi Tamaki, KazuyukiMatsuzawa and Shinichi Kajikawa,”On the FreezingProcess with Supercooling (Measurements of the HeatTransfer Surface Effects on the Maximum Degree of Su-percooling and the Statistical Analyses), “JSME B Vol.54,No.502, pp. 1439-1466, (1988).
-
9Seiji Okawa, Akio Saito and Tadahide Harada,” Experi-mental study on the effect of the electric field on thefreezing of the supercooled water,” Trans, of the JSRAE,Vol. 14, No.l, pp.47-55,(1997).
-
10Takaaki Inada, Xu Zhang, Akira Yabe, Makoto Tanakaand Yoshiyuki Kozawa,’’Active Control of Freezing ofSupercooled Water by Ultrasonic Vibratio,” JSME BVol.65, No.683, pp.3455-3460,(1999).
-
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-
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-
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-
4孔德鹏,焦剑,胡巧青.高分子及其复合潜热储能材料研究进展[J].中国塑料,2006,20(7):1-5. 被引量：4
-
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-
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-
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-
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-
9印度尝试绿色建筑 应对电力紧张[J].风景园林,2005,12(1):99-99.
-
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