A n outstanding scientific and technological achievement of the twentieth century has been the evolution of nuclear energy which forms part of the mix of energy sources on which the continued growth of our civilization depends. In the twenty-first century we may be blessed with the arrival of another source of energy, of similar magnitude, which is more benign than nuclear energy and does not h...

2014 The present paper reviews the problem of short term thermal energy storage for low temperature solar heating applications. The techniques of sensible and latent heat storage are discussed, with particular emphasis on the latter. Requirements for hot water storage subsystems are provided and the importance of stratification in hot water storage tanks is described. Concerning latent heat sto...

Article history: Received 28 April 2008 Received in revised form 2 October 2008 Accepted 3 December 2008 Latent heatflux in the South China Sea (SCS)mainly based on the Tropical RainMeasuringMission Microwave Imager (TMI) is comparedwith the Objectively Analyzed air-sea heat Fluxes (OAFlux), theGoddard Satellite-BasedSurface Turbulent Fluxes, version2 (GSSTF2), the JapaneseOcean Flux Data Sets ...

Actual evapotranspiration is assessed via surface energy balance at an hourly rate. However, a robust estimation of daily evapotranspiration from hourly values is required. Outcomes of surface energy balance are frequently determined via measures of eddy covariance latent heat flux. Surface energy balance can be applied on images acquired at different times and spatial resolutions. In addition,...

The Bowen ratio-energy balance (BREB) is a micrometeorological method often used to estimate latent heat flux because of its simplicity, robustness, and cost. Estimates of latent heat flux have compared favorably with other methods in several studies, but other studies have been less certain, especially when there was sensible heat advection. We compared the latent heat flux of irrigated alfalf...

Abstract Energy crisis is a major challenge in the current world. Latent heat thermal energy storage (LHTES) systems are known as equipment with promising performance by which thermal energy can be recovered. In the present study a comprehensive theoretical and experimental investigation is performed on a LHTES system containing PEG1000 as phase change material (PCM). Discussed topics can be ca...

We estimate a lower bound on the amount of latent heat liberated by freezing droplets. Based on a physical picture of the freezing process, we arrive at an estimate for the effective latent heat (calculated along a reversible path), suitable for heat budget calculations of glaciating clouds. In addition, we arrive at a quadratic dependence on supercooling for the irreversible contribution to he...

TiO2 nanoparticles about 20 nm in diameter in the form of anatase were prepared and characterized. The nanoparticles were successfully dispersed into a paraffin wax (PW) matrix without any surfactant. The differential scanning calorimetric instrument and the transient short hot-wire method were used to measure the thermal properties of the TiO2/PW composites. It is found that the phase-change t...