公开(公告)号：US20230040397A1

公开(公告)日：2023-02-09

申请号：US17880751

申请日：2022-08-04

Applicant: Drexel University

Inventor： Matthew McCarthy ,  Deborah Kapilow

IPC: G01J5/48 ,  G01J5/061 ,  G01J5/08 ,  G01J5/04

Abstract: A backside thermography technique was developed based on the temperature sensitivity of laser-induced fluorescence in flowing two-dye solutions. The approach utilizes visible light and optically transparent packaging materials to obtain spatially resolved transient thermal measurements. This technique is compatible with optically transparent water-cooled packaging, which will allow for the characterization of processes where heat is added as well as removed. A setup was designed, constructed, and used to study the performance of seven two-dye Rhodamine B (RhB)-Rhodamine 110 (Rh110) fluorescent solutions. The effect of dye concentration ratio on sensitivity, maximum frame rate, and excitation area was characterized. The system was used to demonstrate in-situ temperature measurements showing the importance of two-dye light compensation, as well as backside thermography using a simple droplet contact method to investigate temporal response. Droplet contact experiments were conducted on actively heated and cooled surfaces to study local temperature and heat flux behavior during phase change.

公开(公告)号：US20230280115A1

公开(公告)日：2023-09-07

申请号：US18116335

申请日：2023-03-02

Applicant: Drexel University

Inventor： Rebecca L. Winter ,  Emre Olceroglu ,  Matthew McCarthy

IPC: F28F13/18

CPC classification number: F28F13/187

Abstract: A structure for enhancing condensation and wetting dynamics includes a substrate and a plurality of grooves formed in the substrate, forming fins. The fins having fin tops and a coating is applied over the fin tops.