https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8708844Edit ImageSaveSaveEditCropCustom Text Make it Yours.Edit, remix and personalize with your own textCustomizeOr start from these designsNREL researcher in Building Energy Science Group working on the development and characterization of advanced phase change thermal energy storage composites for buildings thermal management applications as part of an LDRD funded research. February 25, 2021. Original public domain image from FlickrMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 1200 x 763 px | 300 dpiLarge JPEG 3500 x 2225 px | 300 dpiBest Quality JPEG 8256 x 5248 px | 300 dpiEdit ImageMonthlyYearlySave 50%Get PremiumProfessional design resources and creative toolsfromfrom$6.50/mo$78 billed yearlyUnlimited downloadsAd-free experienceUnlock millions of creative assets and our entire Creative Studio of editable templates, mockups and design toolsBuy Now