Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 36 for “"radiative cooling"”.
-
Design, fabrication, and application of daytime radiative cooling
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
-
Evaluation of radiative cooling textile performance in extreme thermal environments
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
-
Radiative Cooling and Flat Optics for Advanced Photovoltaic Systems: A Theoretical Study
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Biomimetics design tool used to develop new components for lower-energy buildings
… technical problem in the underdeveloped field of radiative cooling. Radiative cooling is a passive mechanism through which heat from a building can be rejected to the sky – an abundant but underused natural heat sink. Published in the Journal of Bionic Engineering, the study was the first …
-
X-ray Spectroscopy of Cool Core Galaxy Clusters
… I present the results of my PhD research on the cooling flow problem in galaxy clusters. The centre of relaxed galaxy clusters has a short radiative cooling time suggesting the presence of a massive cooling flow. However, early studies using high resolution X-ray spectroscopy indicated much lower …
-
The influence of longwave cloud-top cooling on marine stratocumulus cloud transitions
… analyses are conducted by varying the longwave radiative flux (ΔFn) across the boundary layer, thereby varying the maximum permitted radiative cooling. These radiative cooling values are constrained through a radiative-transfer calculation using all the VOCALS sounding data and liquid water path …
-
Radiative impacts on water mist/cloud droplet condensative growth
… apparatus with an inner wall cooled to induce radiative heat transfer from the mist droplets to the tube wall. The flow tube was designed to isolate the radiative effect by eliminating convective heat transfer between the mist flow and the chamber wall. Droplet size distributions were measured …
-
Radiation-induced condensational growth of cloud-sized mist droplets
… shown with detailed model calculations that net radiative cooling can induce rapid condensational growth of larger droplets at the expense of evaporating smaller ones. However, a gap still exists in the literature between model predictions and experimental evidence. In this study, both laboratory …
-
General relativistic radiation magnetohydrodynamics, with applications to black hole accretion disks
… the balance of advection, viscous heating, and radiative interactions. At the lowest accretion rates, radiative processes may be safely ignored, and electrons are nearly virial. Advection carries the lion's share of this internal energy through the event horizon. At near-Eddington accretion …
-
Multi-dimensional simulations of bow shocks of massive, high-velocity runaway stars
… while including thermal conduction and detailed radiative cooling/heating. Extensive 3D freely expanding stellar wind models testing the numerics in PLUTO, e.g., grid geometries, solvers, limiters and convergence with resolution are presented. Further 2D adiabatic, thermal conduction and …
-
Thermal radiative properties of disordered media and deep metal gratings
… present dissertation investigates the spectral radiative properties of various materials and micro/nanostructures by performing three research tasks. (1) Radiative properties of dense ceramic Al2O3, AlN, and Si3N4 plates are studied from the visible to the mid-infrared region at room …
-
Modeling and Optimization of Tunable Insulated Hybrid Cooling to Extend Food Shelf-life Using Scalable and Affordable Materials
Cooling is a pivotal technology for tackling the global food crisis by securing the food shelf-life. More than 15% of food loss is due to improper food storage temperatures in developing countries. Every 10℃ temperature drop can increase food shelf-life by 2-3 times. However, conventional …
-
The Influence of Physical Processes in Galaxy Clusters on Observable Cluster Scaling Relations
… physical mechanisms, including gravity, radiative cooling, and heating from active galactic nuclei (AGN), on cluster mass-observable relations. In particular, we investigate the physical origin of the intrinsic scatter around the best-fit relations by correlating it with measures of …
-
Dependence of continental severe convective instability on climatological environmental conditions
… heating of the surface boundary layer, and radiative cooling of the free troposphere are computed. In all 8 cases studied, CAPE buildup is found to be driven primarily by fluxes of heat and moisture from the surface into the boundary layer on sub-diurnal time scales, and not by radiative …
-
Experiment and simulation study on a novel, effective radiative cooing film
Space cooling consumes a large portion of U.S. household use, and traditional air conditioning system poses a net heating effect to the global climate. Daytime radiative cooling (DRC) is a passive cooling method with zero energy consumption. It features a high ultraviolet visible near-infrared …
-
Radiatively Cooled Magnetic Reconnection Experiments Driven by Pulsed Power
… hole coronae and neutron star magnetospheres, radiative cooling modifies the energy partition by rapidly removing internal energy. In this thesis, we perform experimental and computational studies of magnetic reconnection in a radiatively cooled regime, previously unexplored in reconnection …
-
On Thermal Aging Prevention in Polymer Core Composite Conductor Rods
… dissertation evaluates the benefit of increasing radiative cooling on the operating temperature of the conductor in order to find a method of transmitting the same current while reducing the thermal aging. Lastly, the impact of incorporating nanoparticles into the epoxy matrix is assessed to …
-
Solar-Powered Critical Cooling: A Theoretical Feasibility Study for Human Thermal Regulation
… there no opportunity to provide emergency cooling of a human due to the slow mass flow rate needed to cool air in a single stream. As such, status-quo attempts to cool humans with general-purpose air conditioning will always be an inefficient use of energy. By focusing on keeping people …
-
Subambient Passive Cooling Enabled by Polyethylene Aerogels
Subambient cooling is vital for promoting human health and well-being, driving sustainable economic growth, and minimizing food waste. Providing these benefits however, comes with major energetic and environmental costs. The over 1.6 billion air conditioning units currently in use around the world …
-
The impact of upper tropospheric temperatures and radiation on idealized tropical cyclones
… the upper tropospheric thermal structure and radiative forcing impact TC intensity and structure have not been fully explored however, due in part to limited observations and the complex interactions between clouds, radiation, and storm dynamics. Idealized Weather Research and Forecasting …
Page 1 of 2