Energy and economic analysis of a residential Solar Organic Rankine plant

被引:17
作者
Bocci, E. [1 ]
Villarini, M. [2 ]
Vecchione, L. [2 ]
Sbordone, D. [3 ]
Di Carlo, A. [4 ]
Dell'Era, A. [1 ]
机构
[1] G Marconi Univ, Dept Energy, Rome, Italy
[2] Univ Tuscia, Interdept Ctr Res & Disseminat Renewable Energy, Orte, VT, Italy
[3] Sapienza Univ, DIAEE Elect Engn Area, Rome, Italy
[4] Sapienza Univ, DIMA Mech Engn Area, Rome, Italy
来源
69TH CONFERENCE OF THE ITALIAN THERMAL ENGINEERING ASSOCIATION, ATI 2014 | 2015年 / 81卷
关键词
Power plants; Renewable energy sources; Distributed generation; Solar Thermal; Organic Rankine Cycle; Absorber; Desalination; STATE-OF-ART; REVERSE-OSMOSIS; DESALINATION SYSTEM; PROCESS SIMULATION; WORKING FLUIDS; CYCLE SYSTEM; POWER; OPTIMIZATION; ORC; HYDROGEN;
D O I
10.1016/j.egypro.2015.12.135
中图分类号
O414.1 [热力学];
学科分类号
摘要
To answer the actual energy, water, economic, social and environmental challenges, renewable, distributed power plants need to be developed. Among renewables, solar tri-generative power plants can be a solution where there is big low temperature heating/cooling demand and small electricity demand, like many residential and industrial utilities. In this case, solar thermal plants can produce thermal energy with low cost and high efficiency. The higher temperature heat not needed by the user can be exploited via Organic Rankine Cycle to produce electrical energy and desalinized water via reverse osmosis. The present paper analyses, via TRNSYS simulation, a system composed of 50 m(2) of CPC solar thermal collectors, 3 m(3) of thermal storage, a synthetic heat transfer fluid, 3 kW(e) ORC, 8 kWth absorber, 200 l/h direct reverse osmosis desalination device. The system is able to produce power, heating/cooling and fresh water needs for a residential house. Although system's components are well known technologies, the integration to a efficient and economic working system is still a challenge. Global energy and economic analyses have been performed. Low temperature heating/cooling terminals allow to increase not only the use of thermal energy but also the ORCand absorber efficiency. ORC-Absorber configuration and relative fluids and temperatures are central. Government support and/or cost reduction of 30% are necessary to have positive NPV and acceptable PBT and IRR. (C) 2015 Published by Elsevier Ltd.
引用
收藏
页码:558 / 568
页数:11
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