Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Optimisation of a high-efficiency solar-driven organic Rankine cycle for applications in the built environment
Year:2018
Research Areas
  • Engineering
Information
Abstract
Energy security, pollution and sustainability are majar challenges presently facing the intemational community ,in response to which increasing quantities of renewab le energy are to be generated in the urban environment. Consequently, recent years have seen a strong increase in the uptake of solar technologies in the building sector. In this work, the potential of a solar combined heat and power (CHP) system based on an organic Rankine cycle (ORC) engine is investigated in a domestic setting. Unlike previous studies that focus on the optimisation of the ORC subsystem, this study performs a complete system optimisation considering both the design parameters of the solar collector array and the ORC engine simultaneously. Firstly, we present thermodynam ic models of different collectors, including flat-plate and evacuated-tube designs, coupled to a non-recuperative sub-critica! ORC architecture that delivers power and hot water by using thermal energy rejected from the engine. Optimisation of the complete system is first onducted, aimed at identify ing operating conditions for which the power output is maxim ised. Then, hourly dynamic simulations of the optimised system configurations are performed to complete the system sizing. Results are presented of: (i) dynamic 3-D simulations of the solar collectors together with a thermal energy storage tank, and (ii) of an optimisation analysis to identify the most suitable working fluids for the ORC engine, in which the configuration and operational constraints of the collector array are considered. The best performi ng working fluids (R245fa and R1233zd) are then chosen for a whole-system annual simulation in a southem European climate.
International
Si
JCR
Si
Title
Applied Energy
ISBN
0306-2619
Impact factor JCR
7,9
Impact info
Volume
228
10.1016/j. apenergy.2018.06.059
Journal number
From page
755
To page
765
Month
SIN MES
Ranking
Participants
  • Autor: Alba Ramos Cabal (UPM)
  • Autor: M.A. Chatzopoulou
  • Autor: J. Freeman
  • Autor: C.N. Markides
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)