Contact

  • shangz@stanford.edu
    University - Student Department: Materials Science and Engineering Position: Graduate
    University - Student Department: Mechanical Engineering Position: Graduate

Additional Info

  • Mail Code: 3030

All Publications

  • The use of poly-cation oxides to lower the temperature of two-step thermochemical water splitting ENERGY & ENVIRONMENTAL SCIENCE Zhai, S., Rojas, J., Ahlborg, N., Lim, K., Toney, M. F., Jin, H., Chueh, W. C., Majumdar, A. 2018; 11 (8): 2172–78

    View details for DOI 10.1039/c8ee00050f

    View details for Web of Science ID 000442262900024

  • A dual-mode textile for human body radiative heating and cooling SCIENCE ADVANCES Hsu, P., Liu, C., Song, A. Y., Zhang, Z., Peng, Y., Xie, J., Liu, K., Wu, C., Catrysse, P. B., Cai, L., Zhai, S., Majumdar, A., Fan, S., Cui, Y. 2017; 3 (11): e1700895

    Abstract

    Maintaining human body temperature is one of the most basic needs for living, which often consumes a huge amount of energy to keep the ambient temperature constant. To expand the ambient temperature range while maintaining human thermal comfort, the concept of personal thermal management has been recently demonstrated in heating and cooling textiles separately through human body infrared radiation control. Realizing these two opposite functions within the same textile would represent an exciting scientific challenge and a significant technological advancement. We demonstrate a dual-mode textile that can perform both passive radiative heating and cooling using the same piece of textile without any energy input. The dual-mode textile is composed of a bilayer emitter embedded inside an infrared-transparent nanoporous polyethylene (nanoPE) layer. We demonstrate that the asymmetrical characteristics of both emissivity and nanoPE thickness can result in two different heat transfer coefficients and achieve heating when the low-emissivity layer is facing outside and cooling by wearing the textile inside out when the high-emissivity layer is facing outside. This can expand the thermal comfort zone by 6.5°C. Numerical fitting of the data further predicts 14.7°C of comfort zone expansion for dual-mode textiles with large emissivity contrast.

    View details for PubMedID 29296678

  • State-space analysis of influencing factors on airborne particle concentration in aircraft cabins BUILDING AND ENVIRONMENT Zhai, S., Li, Z., Zhao, B. 2014; 74: 13-21

    View details for DOI 10.1016/j.buildenv.2013.12.019

    View details for Web of Science ID 000334485600002