1,721,203 research outputs found
Procedura semplificata per il calcolo del fabbisogno di energia per raffrescamento estivo: funzionamento intermittente
No full textIMPROVEMENT OF SOLAR COOLING PLANT PERFORMANCE BASED ON SIMULATION AND EXPERIMENTAL ACTIVITIES
No full textSolar refrigeration for dry hot climates has been achieved by developing a novel concept of high temperature lift solar cooling system. A pilot plant based on this concept was designed and installed for a Tunisian beverage factory in spring 2008. The development of the system concept, the detailed design and the components sizing have been implemented through simulations of the system behaviour using the TRNSYS’s simulation platform. For this purpose mathematical models of the concentrating collector and the absorption chiller were developed and implemented. Results obtained from the monitoring activities of the system’s performance were utilized for the TRNSYS models validation. Therefore the validated models were used for further simulation campaign aiming to define the optimum operating points of the whole system and trace a path towards it’s the plant performance improvement
Procedura semplificata per il calcolo di fabbisogno di energia per raffrescamento estivo
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Panorama generale sullo stato dell'arte della applicazione della legge 10 alla luce del DPR 412 e 551
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PERFORMANCE ASSESSMENT OF INDIRECT DRY-COOLING SYSTEMS WITH WATER BUFFER STORAGE FOR CSP PLANT
No full textThis study concerns the assessment of the potential economic gain provided by coupling a water storage to indirect dry-cooling systems for steam condensation in CSP power plants. The purpose of the water buffer is to store some of the latent heat of steam condensation during the turbine operation and to reject it at night, in order to shift a share of the cooling work and exploit the high diurnal temperature range of desert areas. The energy and economic performances of different technical configurations and sizes of the cooling system are investigated by the parametric analysis of a theoretical case study, referred to an existing solar power plant and based on historical meteorological data. The simulation campaign outcome indicates that in desert
climates the use of the water storage actually allows for a significant reduction of the dry-coolers installed capacity and related cost. Anyway, the assessment of the actual feasibility of this novel cooling system requires a detailed analysis of each specific plant design, since its economic potential depends on several and uncertain cost variable
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