TY  - JOUR
AU  - Mavrou, Paschalia
AU  - Papadopoulos, Athanasios I.
AU  - Stijepović, Mirko
AU  - Seferlis, Panos
AU  - Linke, Patrick
AU  - Voutetakis, Spyros
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3014
AB  - This work investigates the performance of working fluid mixtures for use in solar ORC (Organic Rankine Cycle systems) with heat storage employing FPC (Flat Plate Collectors). Several mixtures are considered including conventional choices often utilized in ORC as well as novel mixtures previously designed using advanced computer aided molecular design methods (Papadopoulos et al., 2013). The impact of heat source variability on the ORC performance is assessed for different working fluid mixtures. Solar radiation is represented in detail through actual, hourly averaged data for an entire year. A multi-criteria mixture selection methodology unveils important trade-offs among several important system operating parameters and efficiently highlights optimum operating ranges. Such parameters include the ORC thermal efficiency, the net generated power, the volume ratio across the turbine, the mass flow rate of the ORC working fluid, the evaporator temperature glide, the temperature drop in the storage tank, the ORC total yearly operating duration, the required collector aperture area to generate 1 kW of power and the irreversibility. A mixture of neopentane - 2-fluoromethoxy-2-methylpropane at 70% neopentane is found to be the most efficient in all the considered criteria simultaneously.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Applied Thermal Engineering
T1  - Novel and conventional working fluid mixtures for solar Rankine cycles: Performance assessment and multi-criteria selection
EP  - 396
SP  - 384
VL  - 75
DO  - 10.1016/j.applthermaleng.2014.10.077
ER  - 

@article{
author = "Mavrou, Paschalia and Papadopoulos, Athanasios I. and Stijepović, Mirko and Seferlis, Panos and Linke, Patrick and Voutetakis, Spyros",
year = "2015",
abstract = "This work investigates the performance of working fluid mixtures for use in solar ORC (Organic Rankine Cycle systems) with heat storage employing FPC (Flat Plate Collectors). Several mixtures are considered including conventional choices often utilized in ORC as well as novel mixtures previously designed using advanced computer aided molecular design methods (Papadopoulos et al., 2013). The impact of heat source variability on the ORC performance is assessed for different working fluid mixtures. Solar radiation is represented in detail through actual, hourly averaged data for an entire year. A multi-criteria mixture selection methodology unveils important trade-offs among several important system operating parameters and efficiently highlights optimum operating ranges. Such parameters include the ORC thermal efficiency, the net generated power, the volume ratio across the turbine, the mass flow rate of the ORC working fluid, the evaporator temperature glide, the temperature drop in the storage tank, the ORC total yearly operating duration, the required collector aperture area to generate 1 kW of power and the irreversibility. A mixture of neopentane - 2-fluoromethoxy-2-methylpropane at 70% neopentane is found to be the most efficient in all the considered criteria simultaneously.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Applied Thermal Engineering",
title = "Novel and conventional working fluid mixtures for solar Rankine cycles: Performance assessment and multi-criteria selection",
pages = "396-384",
volume = "75",
doi = "10.1016/j.applthermaleng.2014.10.077"
}

Mavrou, P., Papadopoulos, A. I., Stijepović, M., Seferlis, P., Linke, P.,& Voutetakis, S.. (2015). Novel and conventional working fluid mixtures for solar Rankine cycles: Performance assessment and multi-criteria selection. in Applied Thermal Engineering
Pergamon-Elsevier Science Ltd, Oxford., 75, 384-396.
https://doi.org/10.1016/j.applthermaleng.2014.10.077

Mavrou P, Papadopoulos AI, Stijepović M, Seferlis P, Linke P, Voutetakis S. Novel and conventional working fluid mixtures for solar Rankine cycles: Performance assessment and multi-criteria selection. in Applied Thermal Engineering. 2015;75:384-396.
doi:10.1016/j.applthermaleng.2014.10.077 .

Mavrou, Paschalia, Papadopoulos, Athanasios I., Stijepović, Mirko, Seferlis, Panos, Linke, Patrick, Voutetakis, Spyros, "Novel and conventional working fluid mixtures for solar Rankine cycles: Performance assessment and multi-criteria selection" in Applied Thermal Engineering, 75 (2015):384-396,
https://doi.org/10.1016/j.applthermaleng.2014.10.077 . .

TY  - JOUR
AU  - Mavrou, Paschalia
AU  - Papadopoulos, Athanasios I.
AU  - Stijepović, Mirko
AU  - Seferlis, Panos
AU  - Linke, Patrick
AU  - Voutetakis, Spyros
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2735
AB  - This work investigates the performance of binary working fluid mixtures in a low temperature solar Organic Rankine Cycle (ORC) system including heat storage. Conventional mixtures widely considered in published literature are compared with optimum mixtures previously obtained using a computer-aided molecular design method in Papadopoulos et al. (2013). The system performance is investigated for a real solar radiation profile for an entire year of operation. Inclusive, steady-state mathematical models are used for the simulation of both the solar collectors and the ORC. The effects of different mixtures on several important system operating parameters are investigated. Results indicate that mixtures at different compositions and concentrations may have a significantly different performance in terms of parameters such as generated work, required collector aperture area and so forth. Neopentane- based mixtures appear as promising candidates of high overall performance for solar ORCs.
PB  - Aidic Servizi Srl, Milano
T2  - Pres 2014, 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and
T1  - Assessment of Working Fluid Mixtures for Solar Organic Rankine Cycles
EP  - +
SP  - 283
VL  - 39
DO  - 10.3303/CET1439048
ER  - 

@article{
author = "Mavrou, Paschalia and Papadopoulos, Athanasios I. and Stijepović, Mirko and Seferlis, Panos and Linke, Patrick and Voutetakis, Spyros",
year = "2014",
abstract = "This work investigates the performance of binary working fluid mixtures in a low temperature solar Organic Rankine Cycle (ORC) system including heat storage. Conventional mixtures widely considered in published literature are compared with optimum mixtures previously obtained using a computer-aided molecular design method in Papadopoulos et al. (2013). The system performance is investigated for a real solar radiation profile for an entire year of operation. Inclusive, steady-state mathematical models are used for the simulation of both the solar collectors and the ORC. The effects of different mixtures on several important system operating parameters are investigated. Results indicate that mixtures at different compositions and concentrations may have a significantly different performance in terms of parameters such as generated work, required collector aperture area and so forth. Neopentane- based mixtures appear as promising candidates of high overall performance for solar ORCs.",
publisher = "Aidic Servizi Srl, Milano",
journal = "Pres 2014, 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and",
title = "Assessment of Working Fluid Mixtures for Solar Organic Rankine Cycles",
pages = "+-283",
volume = "39",
doi = "10.3303/CET1439048"
}

Mavrou, P., Papadopoulos, A. I., Stijepović, M., Seferlis, P., Linke, P.,& Voutetakis, S.. (2014). Assessment of Working Fluid Mixtures for Solar Organic Rankine Cycles. in Pres 2014, 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and
Aidic Servizi Srl, Milano., 39, 283-+.
https://doi.org/10.3303/CET1439048

Mavrou P, Papadopoulos AI, Stijepović M, Seferlis P, Linke P, Voutetakis S. Assessment of Working Fluid Mixtures for Solar Organic Rankine Cycles. in Pres 2014, 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and. 2014;39:283-+.
doi:10.3303/CET1439048 .

Mavrou, Paschalia, Papadopoulos, Athanasios I., Stijepović, Mirko, Seferlis, Panos, Linke, Patrick, Voutetakis, Spyros, "Assessment of Working Fluid Mixtures for Solar Organic Rankine Cycles" in Pres 2014, 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and, 39 (2014):283-+,
https://doi.org/10.3303/CET1439048 . .