Showing 21 - 30 of 83
Both thermoeconomic modeling and multi-objective optimization studies are undertaken for a novel integrated multigeneration system, containing a biomass combustor, an organic Rankine cycle to produce electricity, a double-effect absorption chiller for cooling, a heat exchanger, a proton exchange...
Persistent link: https://www.econbiz.de/10010808686
In this study, energy and exergy analyses are carried out for the charging period of an ice-on-coil thermal energy storage system. The present model is developed using a thermal resistance network technique. First, the time-dependent variations of the predicted total stored energy, mass of ice,...
Persistent link: https://www.econbiz.de/10010808827
The solidification process in encapsulated ice thermal energy storage (EITES) system is simulated for water-filled capsules while neglecting storage tank wall effects and heat penetration. Energy and exergy efficiencies were calculated while varying capsule shape, inlet Heat Transfer Fluid (HTF)...
Persistent link: https://www.econbiz.de/10010808845
In this paper, the performance of wind energy system is assessed thermodynamically, from resource and technology perspectives. The thermodynamic characteristics of wind through energy and exergy analyses are considered and both energetic and exergetic efficiencies are studied. Wind speed is...
Persistent link: https://www.econbiz.de/10010809519
A linear optimization model and a multi-attribute value model have been introduced. These models have been used in order to estimate the long-term energy, economy and environment interactions for Turkey. The results of these models are presented in tabular summaries.
Persistent link: https://www.econbiz.de/10010809585
The present study deals with an analysis of unsteady heat-transfer during forced-air cooling of figs as spherical fruits. The heat-transfer mechanism in the cooling of fruits is quite complex. Conduction, convection, radiation, and internal heat generation take place. Moisture loss is coupled...
Persistent link: https://www.econbiz.de/10010810203
A new solar dryer, which consists of a solar air heater and a drying chamber, was developed and used for drying agricultural products. The present drying system was successfully tested using sultana grapes, green beans, sweet peppers, and chilli peppers. Traditional sun-drying experiments were...
Persistent link: https://www.econbiz.de/10010810748
In this paper, energetic performance comparison of three trigeneration systems is presented. The systems considered are SOFC-trigeneration, biomass-trigeneration, and solar-trigeneration systems. This study compares the performance of the systems considered when there is only electrical power...
Persistent link: https://www.econbiz.de/10010810927
A comprehensive thermodynamic modeling and optimization is reported of a polygeneration energy system for the simultaneous production of heating, cooling, electricity and hot water from a common energy source. This polygeneration system is composed of four major parts: gas turbine (GT) cycle,...
Persistent link: https://www.econbiz.de/10010811404
A new multi-generation system based on a biomass combustor, an organic Rankine cycle (ORC), an absorption chiller and a proton exchange membrane electrolyzer to produce hydrogen, and a domestic water heater for hot water production, is proposed and thermodynamically assessed. Exergy analysis is...
Persistent link: https://www.econbiz.de/10010811682