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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Torsional refrigeration by twisted, coiled, and supercoiled fibers

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Autor(es):
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Wang, Run [1] ; Fang, Shaoli [2] ; Xiao, Yicheng [1] ; Gao, Enlai [2, 3] ; Jiang, Nan [2, 4] ; Li, Yaowang [5] ; Mou, Linlin [1] ; Shen, Yanan [1] ; Zhao, Wubin [1] ; Li, Sitong [1] ; Fonseca, Alexandre F. [6] ; Galvao, Douglas S. [6] ; Chen, Mengmeng [1] ; He, Wenqian [1] ; Yu, Kaiqing [1] ; Lu, Hongbing [7] ; Wang, Xuemin [7, 8] ; Qian, Dong [7] ; Aliev, Ali E. [2] ; Li, Na [2, 9] ; Haines, Carter S. [2] ; Liu, Zhongsheng [1] ; Mu, Jiuke [2] ; Wang, Zhong [2] ; Yin, Shougen [10] ; Lima, Marcio D. [11] ; An, Baigang [12] ; Zhou, Xiang [13] ; Liu, Zunfeng [1] ; Baughman, Ray H. [2]
Número total de Autores: 30
Afiliação do(s) autor(es):
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[1] Nankai Univ, Coll Pharm, State Key Lab Med Chem Biol, Key Lab Funct Polymer Mat, Tianjin 300071 - Peoples R China
[2] Univ Texas Dallas, Alan G MacDiarmid NanoTech Inst, Richardson, TX 75080 - USA
[3] Wuhan Univ, Sch Civil Engn, Dept Engn Mech, Wuhan 430072, Hubei - Peoples R China
[4] Tsinghua Shenzhen Int Grad Sch, Shenzhen Geim Graphene Ctr, Shenzhen 518055 - Peoples R China
[5] Tsinghua Univ, Sch Life Sci, Beijing 100084 - Peoples R China
[6] Univ Estadual Campinas, Appl Phys Dept, BR-3081970 Campinas, SP - Brazil
[7] Univ Texas Dallas, Dept Mech Engn, Richardson, TX 75080 - USA
[8] Georgia Southern Univ, Dept Mech Engn, Statesboro, GA 30458 - USA
[9] MilliporeSigma, Mat Sci, Milwaukee, WI 53209 - USA
[10] Tianjin Univ Technol, Inst Mat Phys, Tianjin 300384 - Peoples R China
[11] Lintec Amer, Nanosci & Technol Ctr, Richardson, TX 75081 - USA
[12] Univ Sci & Technol Liaoning, Sch Chem Engn, Anshan 114051, Liaoning - Peoples R China
[13] China Pharmaceut Univ, Dept Sci, Nanjing 211198, Jiangsu - Peoples R China
Número total de Afiliações: 13
Tipo de documento: Artigo Científico
Fonte: Science; v. 366, n. 6462, p. 216+, OCT 11 2019.
Citações Web of Science: 2
Resumo

Higher-efficiency, lower-cost refrigeration is needed for both large- and small-scale cooling. Refrigerators using entropy changes during cycles of stretching or hydrostatic compression of a solid are possible alternatives to the vapor-compression fridges found in homes. We show that high cooling results from twist changes for twisted, coiled, or supercoiled fibers, including those of natural rubber, nickel titanium, and polyethylene fishing line. Using opposite chiralities of twist and coiling produces supercoiled natural rubber fibers and coiled fishing line fibers that cool when stretched. A demonstrated twist-based device for cooling flowing water provides high cooling energy and device efficiency. Mechanical calculations describe the axial and spring-index dependencies of twist-enhanced cooling and its origin in a phase transformation for polyethylene fibers. (AU)

Processo FAPESP: 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais
Beneficiário:Munir Salomao Skaf
Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
Processo FAPESP: 18/02992-4 - Nanoestruturas de Carbono: Simulação e Modelagem
Beneficiário:Alexandre Fontes da Fonseca
Modalidade de apoio: Auxílio à Pesquisa - Regular