Long-term heat-storage ceramics absorbing thermal energy from hot water

被引：44

作者：

Nakamura, Yoshitaka ^{[1
]}

Sakai, Yuki ^{[2
,3
]}

Azuma, Masaki ^{[2
,3
]}

Ohkoshi, Shin-ichi ^{[4
]}

机构：

[1] Panasonic Corp, Ind Solut Co, 1006 Kadoma, Kadoma, Osaka 5718501, Japan

[2] Kanagawa Inst Ind Sci & Technol, 705-1 Shimoimaizumi, Ebina, Kanagawa 2430435, Japan

[3] Tokyo Inst Technol, Lab Mat & Struct, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan

[4] Univ Tokyo, Sch Sci, Dept Chem, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

来源：

SCIENCE ADVANCES | 2020年 / 6卷 / 27期

关键词：

PHASE; CLIMATE; GROWTH; OXIDE;

D O I：

10.1126/sciadv.aaz5264

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In thermal and nuclear power plants, 70% of the generated thermal energy is lost as waste heat. The temperature of the waste heat is below the boiling temperature of water. Here, we show a long-term heat-storage material that absorbs heat energy at warm temperatures from 38 degrees C (311 K) to 67 degrees C (340 K). This unique series of material is composed of scandium-substituted lambda-trititanium-pentoxide (lambda-ScxTi3-xO5). lambda-ScxTi3-xO5 not only accumulates heat energy from hot water but also could release the accumulated heat energy by the application of pressure. lambda-ScxTi3-xO5 has the potential to accumulate heat energy of hot water generated in thermal and nuclear power plants and to recycle the accumulated heat energy on demand by applying external pressure. Furthermore, it may be used to recycle waste heat in industrial factories and automobiles.

引用

页数：7

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