Thermoeconomic assessment of a spectral-splitting hybrid PVT system in dairy farms for combined heat and power
File(s)
Submitted version
Author(s)
Type
Conference Paper
Abstract
We investigate the thermoeconomic potential of a solar-combined heat and power (S-CHP) system based on concentrating, spectral-splitting hybrid photovoltaic-thermal (PVT) collectors for the provision of electricity, steam and hot water for processing milk products in dairy applications. Transient simulations are conducted by using a system model with real-time demand and weather data as inputs, taking account of the spectrum-selective features of the PV cells as well as key heat transfer mechanisms that determine the electrical and thermal performance of the PVT collector. Economic performance is also assessed by considering the investment and savings enabled by the reduced electrical and fuel consumption. The results show that incorporating spectral
beam-splitting technology into hybrid PVT collectors can be effective in maintaining the PV cells at low temperatures, while at the same time supplying thermal outputs (fluid streams) at temperatures significantly higher than then cell temperatures for steam generation and/or hot water provision. Based on a 15,000-m2 installed area, it is found that 80% of the thermal demand for steam generation and 60% of the hot water demand can be satisfied by the PVT S-CHP system, along with a net electrical output amounting to 60% of the demand. Economic and environmental assessments show that the system has an excellent decarbonisation potential (1,500 tCO2/year) and is economically viable if the investment cost of the spectrum splitter is lower than 0.85 of the cost of the parabolic concentrator (i.e., <2,150 €/m2 spectrum splitter) in this application.
beam-splitting technology into hybrid PVT collectors can be effective in maintaining the PV cells at low temperatures, while at the same time supplying thermal outputs (fluid streams) at temperatures significantly higher than then cell temperatures for steam generation and/or hot water provision. Based on a 15,000-m2 installed area, it is found that 80% of the thermal demand for steam generation and 60% of the hot water demand can be satisfied by the PVT S-CHP system, along with a net electrical output amounting to 60% of the demand. Economic and environmental assessments show that the system has an excellent decarbonisation potential (1,500 tCO2/year) and is economically viable if the investment cost of the spectrum splitter is lower than 0.85 of the cost of the parabolic concentrator (i.e., <2,150 €/m2 spectrum splitter) in this application.
Date Issued
2019-06-23
Date Acceptance
2019-03-28
Citation
Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. International Conference. 32nd 2019. (ECOS 2019), 2019, pp.1713-1724
ISBN
9781713803294
Publisher
Silesian University of Technology, Department of Thermal Engineering
Start Page
1713
End Page
1724
Journal / Book Title
Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. International Conference. 32nd 2019. (ECOS 2019)
Copyright Statement
Copyright© (2019) by Silesian University of Technology - Institute of Thermal Technology All rights reserved.
Source
The 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2019)
Publication Status
Published
Start Date
2019-06-23
Finish Date
2019-06-28
Coverage Spatial
Wrocław, Poland