综合智慧能源 ›› 2022, Vol. 44 ›› Issue (4): 51-64.doi: 10.3969/j.issn.2097-0706.2022.04.007
收稿日期:
2022-01-15
修回日期:
2022-03-20
出版日期:
2022-04-25
发布日期:
2022-05-05
通讯作者:
闫君
作者简介:
王长君(1980),男,工程师,工学硕士,从事储电、储热/冷等项目的开发研究, 02010891@163.com
基金资助:
WANG Changjun1(), YAN Jun2,*(), DONG Yong3, SONG Zhanlong3
Received:
2022-01-15
Revised:
2022-03-20
Online:
2022-04-25
Published:
2022-05-05
Contact:
YAN Jun
摘要:
实现“双碳”目标,需要提升新能源利用率并解决储能相关问题。相变材料(PCM)因其独特的物理特性能够在特定的温度下存储和释放能量,在能量存储方面有很广泛的应用。中低温相变储能技术的应用主要集中在建筑节能方面。分析了相变储能技术与热泵技术结合,在提升热泵的性能系数(COP)、减少热泵除霜时间和存储热泵热量/冷量等方面的应用进展情况。两者结合,能有效提升热泵COP、热泵机组运行稳定性以及用户端的舒适度,在建筑节能领域有着广阔的应用前景。指出了实际应用中存在的温度匹配、功率匹配、系统成本等问题,为未来研究提供可参考方向。
中图分类号:
王长君, 闫君, 董勇, 宋占龙. 相变储能技术在热泵系统中的应用综述[J]. 综合智慧能源, 2022, 44(4): 51-64.
WANG Changjun, YAN Jun, DONG Yong, SONG Zhanlong. Application of phase-change energy storage technology in heat pump systems[J]. Integrated Intelligent Energy, 2022, 44(4): 51-64.
表1
部分文献中出现的PCM的热物理性
材料 | 相变温度/℃ | 比焓/ (kJ·kg-1) | 比热容/ [kJ·(kg·K) -1] | 固态密度/ (kg·L-1) | 液态密度/ (kg·L-1) | 导热系数/ [W·(m·K) -1] | |
---|---|---|---|---|---|---|---|
无机材料 | CaCl2·6H2O[ | 30.0 | 187.49 | 1.46(s)/2.13(l) | 1.500 | 1.710 | — |
41%MgCl2·(H2O)6+ 59%Mg(NO3)2·(H2O)6[ | 40.0~65.0 | — | — | — | — | 0.600 | |
Na2SO4·10H2O[ | 32.4 | 241.00 | 1.80(s)/3.30(l) | 1.460 | 1.330 | 0.700(s)/0.540(l) | |
石蜡类 | RT6[ | 8.0 | 140.00 | 1.80(s)/2.40(l) | 0.860 | 0.770 | — |
RT10[ | 9.0 | 134.90 | 2.00 | 0.880 | 0.770 | 0.200 | |
RT11HC[ | 10.0~12.0 | — | — | 0.880 | 0.770 | 0.200 | |
A16[ | 15.0~17.0 | 213.00 | 2.30~2.37 | 0.830 | 0.800 | 0.180 | |
RT22[ | 19.0~23.0 | 200.00 | 2.00 | 0.880 | 0.770 | 0.200 | |
RT27[ | 25.0 | 146.00 | 1.80(s)/2.40(l) | 0.870 | 0.750 | — | |
Paraffin[ | 35.0 | 160.00 | 2.00 | 0.880 | 0.760 | 0.200 | |
Paraffin[ | 44.0 | 174.00 | 2.44(s)/2.53(l) | 0.830 | 0.783 | 0.130 | |
RT44HC[ | 43.0 | 255.00 | — | 0.860 | 0.760 | 0.200 | |
Paraffin[ | 49.6~50.6 | 146.00 | 2.20(s)/3.62(l) | 0.845 | 0.765 | 0.360 | |
Paraffin[ | 54.9~55.8 | 149.10 | 2.37(s)/3.16(l) | 0.850 | 0.768 | 0.400 | |
Paraffin[ | 52.0~54.0 | 140.00 | 2.40 | 0.920 | — | 5.380 | |
RT58[ | 58.0 | 179.00 | 1.80(s)/2.40(l) | 0.760 | 0.900 | — | |
Paraffin[ | 59.5~60.2 | 189.50 | 2.89(s)/4.31(l) | 0.862 | 0.780 | 0.400 | |
有机酸类 | 36%硬脂酸+64%棕榈酸[ | 40.0~65.0 | — | — | — | — | 0.288 |
65%癸酸+35%月桂酸[ | 18.0 | 140.80 | — | 0.900 | — | 0.143 |
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