Shell-and-tube latent heat thermal energy storage units employ phase change materials to store and release at a nearly constant temperature, deliver high effectiveness of transfer, as well charging/discharging power. Even though many studies have investigated the material formulation, transfer through simulation, experimental studies, there is limited research dedicated unit design methodology....

Investigating the pool boiling process in absorption chiller generator by studying valid parameters may enhance chiller?s COP. In present study, transient 2-D numerical modelling of LiBr/H2O solution was carried out using two-phase Eulerian-Eulerian approach, extended Rensselaer Polytechnic Institute model and renormalization group k-? turbulence model. The applied on three types bare, notched ...

Today, due to qualitative growth and scientific advances, energy, especially electricity is increasingly needed by human society. One of the almost endless and pure energy which have been paid attention over the years is the solar energy. Solar cells directly convert solar energy into electrical energy and are one of the main blocks of photovoltaic systems. Significant improvement has been made...

In P3HT:PCBM based organic solar cells we propose and demonstrate numerically plasmonic backcontact grating architectures for strong optical absorption enhanced in both transverse-magnetic and transverse-electric polarizations. Even when the active material is partially replaced by the metallic grating (without increasing the active layer film thickness), we show computationally that the light ...

load management and cost optimization are among the important factors in trigenerationsystems and combined cooling, heating and power (cchp) systems. in this study, an innovative cchpsystem uses a gas turbine as the prime mover and has a heat recovery steam generator (hrsg) in addition toan auxiliary boiler, electric and absorption chillers. the system is tied with the bulk electric grid; to ex...

Recent work has proposed that hybridization of residential-scale cogeneration with roof-mounted solar photovoltaic (PV) arrays can increase the PV penetration level in ideal situations by a factor of five. In regions where there is a significant cooling load PV-cogen hybrid systems could be coupled to an absorption chiller to utilize waste heat from the cogen unit. In order to investigate reali...