Topic
Latent heat
About: Latent heat is a research topic. Over the lifetime, 13503 publications have been published within this topic receiving 302811 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, the feasibility of using a latent heat storage unit with HS 58, an inorganic salt based phase change material, to store the excess solar energy, and release it when the energy availability is inadequate during poor weather conditions, and to extend the period of utilisation beyond the sunshine hours.
132 citations
Macquarie University1, Australian Nuclear Science and Technology Organisation2, University of Arizona3, Goddard Space Flight Center4, Commonwealth Scientific and Industrial Research Organisation5, University of Washington6, Princeton University7, European Centre for Medium-Range Weather Forecasts8, Centre national de la recherche scientifique9, RMIT University10, Rutgers University11, University of Maryland, College Park12
TL;DR: Using atmospheric forcing data generated from a general circulation climate model, sixteen land surface schemes participating in the Project for the Intercomparison of Land-surface Parametrization Schemes (PILPS) were run o!-line to equilibrium using forcing data from a GCM representative of a tropical forest and a mid-latitude grassland grid point as mentioned in this paper.
Abstract: Using atmospheric forcing data generated from a general circulation climate model, sixteen land surface schemes participating in the Project for the Intercomparison of Land-surface Parametrization Schemes (PILPS) were run o!-line to equilibrium using forcing data from a GCM representative of a tropical forest and a mid-latitude grassland grid point. The values for each land surface parameter (roughness length, minimum stomatal resistance, soil depth etc.) were provided. Results were quality controlled and analyzed, focusing on the scatter simulated amongst the models. There were large di!erences in how the models' partitioned available energy between sensible and latent heat. Annually averaged, simulations for the tropical forest ranged by 79 W m~2 for the sensible heat #ux and 80 W m~2 for the latent heat#ux. For the grassland, simulations ranged by 34 W m~2 for the sensible heat #ux and 27 W m~2 for the latent heat #ux. Similarly large di!erences were found for simulated runo! and soil moisture and at the monthly time scale. The models' simulation of annually averaged e!ective radi- ative temperature varied with a range, between all the models, of 1.4 K for tropical forest and 2.2 K for the grassland. The simulation of latent and sensible heat #uxes by a standard &bucket' models was anomalous although this could be corrected by an additional res- istance term. These results imply that the current land surface models do not agree on the land surface climate
132 citations
TL;DR: A phase change composite (PCC) using a porous metal with a thermal conductivity that is two orders larger than that of the original phase change material (PCM) was developed in this paper.
132 citations
TL;DR: In this paper, the authors present an efficient algorithm for solving nonlinear heat problems involving phase change. But the authors do not consider the nonlinearity of the phase change problem in this paper.
132 citations
TL;DR: In this paper, the effects of moderate-sized (30-100 km diameter) impacts on Mars using a one-dimensional radiative-convective model were modeled using a model that computes the evolution of temperature following an impact.
Abstract: [1] We have modeled the effects of moderate-sized (30–100 km diameter) impacts on Mars using a one-dimensional radiative-convective model. The model computes the evolution of temperature following an impact and includes a subsurface model to compute the evolution of the ground temperature; a hydrological cycle to follow the evaporation, condensation, and precipitation of injected and surface-evaporated water; a radiative transfer code to compute greenhouse warming by CO2, water vapor, and water clouds; and an atmospheric thermodynamics module to compute the latent heating due to cloud formation/dissipation. We have found that parts of the Martian regolith may be kept above freezing for 95 days to decades by the modeled events. However, if we include the radiative effects of water clouds, a sustained greenhouse climate is computed for impactors 50 km in size that could be centuries long. The amount of water precipitated out of the atmosphere from vaporization of impactor, target, and polar caps yields global rainfall totals ranging from 40 to 18 m depending on the size of the impactor and assumed background CO2 atmosphere. We also estimate the surface erosion following precipitation events and find that the total erosion done by all impactors in time is the same order of magnitude as the total erosion estimated to have occurred on early Mars.
132 citations