CIESC Journal ›› 2021, Vol. 72 ›› Issue (5): 2857-2868.DOI: 10.11949/0438-1157.20201406
• Material science and engineering, nanotechnology • Previous Articles Next Articles
XIONG Yaxuan1(),QIAN Xiangyao1,LI Shuo1,SUN Mingyuan1,WANG Zhenyu1,WU Yuting2,XU Peng1,DING Yulong3,MA Chongfang2
Received:
2020-10-09
Revised:
2021-01-08
Online:
2021-05-05
Published:
2021-05-05
Contact:
XIONG Yaxuan
熊亚选1(),钱向瑶1,李烁1,孙明远1,王振宇1,吴玉庭2,徐鹏1,丁玉龙3,马重芳2
通讯作者:
熊亚选
作者简介:
熊亚选(1977—),男,博士,副教授,基金资助:
CLC Number:
XIONG Yaxuan, QIAN Xiangyao, LI Shuo, SUN Mingyuan, WANG Zhenyu, WU Yuting, XU Peng, DING Yulong, MA Chongfang. Effect of preparation methods on thermal energy storage performance and formation mechanism of molten salt nanofluids[J]. CIESC Journal, 2021, 72(5): 2857-2868.
熊亚选, 钱向瑶, 李烁, 孙明远, 王振宇, 吴玉庭, 徐鹏, 丁玉龙, 马重芳. 制备方法对纳米熔盐储热性能及形成机理的影响[J]. 化工学报, 2021, 72(5): 2857-2868.
材料 | 纯度/% | 生产商 | 粒径/nm | 单价/(CNY/t) |
---|---|---|---|---|
NaNO3 | ≥ 99 | Sinopharm Chemical Reagent Co., Ltd., China | — | 3500 |
KNO3 | ≥ 99 | Sinopharm Chemical Reagent Co., Ltd., China | — | 5200 |
SiO2 | ≥ 99.8 | Shen Zhen Nanolly Chemical Reagent Co., Ltd., China | 20 | 25000 |
Table 1 Basic characteristics of component salts and nanoparticles
材料 | 纯度/% | 生产商 | 粒径/nm | 单价/(CNY/t) |
---|---|---|---|---|
NaNO3 | ≥ 99 | Sinopharm Chemical Reagent Co., Ltd., China | — | 3500 |
KNO3 | ≥ 99 | Sinopharm Chemical Reagent Co., Ltd., China | — | 5200 |
SiO2 | ≥ 99.8 | Shen Zhen Nanolly Chemical Reagent Co., Ltd., China | 20 | 25000 |
材料 | 水溶液法 | 高温熔融法 | ||||||
---|---|---|---|---|---|---|---|---|
熔化潜热/(J/g) | 升高/% | 熔点/℃ | 升高/℃ | 熔化潜热/(J/g) | 升高/% | 熔点/℃ | 升高/℃ | |
base salt | 113.6 | 0.00 | 217.6 | 0 | 113.6 | 0.00 | 217.6 | 0 |
+1% SiO2 30 min | 111.9 | -1.52 | 210.4 | -7.2 | 118.3 | 3.97 | 210.7 | -6.9 |
+1% SiO2 45 min | 112.3 | -1.16 | 210.8 | -6.8 | 118.4 | 4.05 | 210.6 | -7 |
+1% SiO2 60 min | 114.7 | 0.96 | 210.3 | -7.3 | 120.1 | 5.41 | 209.7 | -7.9 |
+1% SiO2 75 min | 116.6 | 2.57 | 209.6 | -8 | 118.6 | 4.22 | 210.2 | -7.4 |
+1% SiO2 90 min | 117.6 | 3.40 | 210.7 | -6.9 | 120.6 | 5.80 | 210.5 | -7.1 |
+1% SiO2 105 min | 118.5 | 4.14 | 210.2 | -7.4 | 118.4 | 4.05 | 210.3 | -7.3 |
+1% SiO2 120 min | 115.5 | 1.65 | 209.6 | -8 | 116.6 | 2.57 | 210.3 | -7.3 |
+1% SiO2 135 min | 119.4 | 4.86 | 209.3 | -8.3 | 118.3 | 3.97 | 210.3 | -7.3 |
+1% SiO2 150 min | 117.3 | 3.15 | 209.6 | -8 | 117.4 | 3.24 | 210.1 | -7.5 |
+1% SiO2 165 min | 114.9 | 1.13 | 209.3 | -8.3 | 116.9 | 2.82 | 210.5 | -7.1 |
Table 2 Melting point and latent heat of molten salt nanofluids
材料 | 水溶液法 | 高温熔融法 | ||||||
---|---|---|---|---|---|---|---|---|
熔化潜热/(J/g) | 升高/% | 熔点/℃ | 升高/℃ | 熔化潜热/(J/g) | 升高/% | 熔点/℃ | 升高/℃ | |
base salt | 113.6 | 0.00 | 217.6 | 0 | 113.6 | 0.00 | 217.6 | 0 |
+1% SiO2 30 min | 111.9 | -1.52 | 210.4 | -7.2 | 118.3 | 3.97 | 210.7 | -6.9 |
+1% SiO2 45 min | 112.3 | -1.16 | 210.8 | -6.8 | 118.4 | 4.05 | 210.6 | -7 |
+1% SiO2 60 min | 114.7 | 0.96 | 210.3 | -7.3 | 120.1 | 5.41 | 209.7 | -7.9 |
+1% SiO2 75 min | 116.6 | 2.57 | 209.6 | -8 | 118.6 | 4.22 | 210.2 | -7.4 |
+1% SiO2 90 min | 117.6 | 3.40 | 210.7 | -6.9 | 120.6 | 5.80 | 210.5 | -7.1 |
+1% SiO2 105 min | 118.5 | 4.14 | 210.2 | -7.4 | 118.4 | 4.05 | 210.3 | -7.3 |
+1% SiO2 120 min | 115.5 | 1.65 | 209.6 | -8 | 116.6 | 2.57 | 210.3 | -7.3 |
+1% SiO2 135 min | 119.4 | 4.86 | 209.3 | -8.3 | 118.3 | 3.97 | 210.3 | -7.3 |
+1% SiO2 150 min | 117.3 | 3.15 | 209.6 | -8 | 117.4 | 3.24 | 210.1 | -7.5 |
+1% SiO2 165 min | 114.9 | 1.13 | 209.3 | -8.3 | 116.9 | 2.82 | 210.5 | -7.1 |
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