Environmental assessment of solar thermal systems for the industrial sector

Kylili, Angeliki; Fokaides, Paris A.; Ioannides, Andreas; Kalogirou, Soteris A.

doi:10.1016/j.jclepro.2017.12.150

Cited by 87 publications

(45 citation statements)

References 25 publications

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“…It is also crucial that the use of solar collectors instead of hydrocarbon alternatives for the heat supply of industrial processes has a positive impact on the environment not only at the stage of direct operation of the solar collector but throughout the entire life cycle, including the stages of extraction and processing of raw materials for production of solar collectors, the stage of their production, the stages of transportation and installation, as well as disposal after use [45]. Thus, the use of solar collectors not only helps to approach the achievement of the goals of decarbonization of the economy, but also is fully integrated into the concept of transition to a circular economy.…”

Section: Discussion and Policy Applicationsmentioning

confidence: 99%

Energy Saving Potential of Industrial Solar Collectors in Southern Regions of Russia: The Case of Krasnodar Region

et al. 2020

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Industrial low-temperature processes are a promising sector for the introduction of solar collectors, which can partially, and in some cases, completely, replace traditional heat supply technologies. In Krasnodar Region (Russia), it is shown that the energy-saving potential when introducing industrial solar collectors only at food industry enterprises can make up 16%–17% of the total amount of thermal energy produced in the region annually. The global market of industrial solar collectors is currently developing almost without any government incentives, only due to market mechanisms, which indicates the commercial attractiveness of the technology. According to the predicted estimates, levelized cost of energy produced by industrial solar collectors in the southern regions of Russia may amount to 3.8–6.6 rubles per kWh. Even though the forecast estimates are higher than current tariffs, the economic feasibility of using solar collectors in the industry increases significantly if it is not possible to connect to centralized heating networks, as well as in the case of the seasonal load of industrial facilities. As a measure of state incentives for the development of industrial solar collectors in Russia, we offer state co-financing of demonstration projects of Russian manufacturers. This will increase the level of awareness of the population and businesses about the capabilities of this technology. Also, it will increase the technical competencies and innovative potential of companies involved in the production and installation of solar collectors.

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Section: Discussion and Policy Applicationsmentioning

confidence: 99%

Energy Saving Potential of Industrial Solar Collectors in Southern Regions of Russia: The Case of Krasnodar Region

et al. 2020

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“…These aims have motivated researchers to continually improve the design and performance of solar collectors [26][27][28] and decrease their cost [29,30], and to understand their lifecycle environmental impacts [31,32]. Solar technologies have been assessed independently for their life cycle impacts [33,34], however, no studies in the literature have attempted to extrapolate this out for the environmental impacts of such solar technologies globally. Thus, the regional embodied emissions (from the manufacturing stage) will be assessed in this study and compared to the embodied emissions resulting from business as usual.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have investigated solar collector systems using various objectives such as cost [30], energy outputs [37], embodied emissions [38], and the environmental damage cost of PV collectors [39]. While these types of studies are much more common for the small scale [40], there is also a limited number which looks at solar technologies for industrial applications [34,41]. Furthermore, a few studies have looked at combining renewable technologies in an optimum mix to better meet the demand of building [42] and the electrical grid [43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Global solar technology optimization for factory rooftop emissions mitigation

Mousa

Taylor

2020

Environ. Res. Lett.

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The industrial sector consumes ∼32% of the world's final energy demand, most in the form of heat which is derived primarily from fossil fuels. Two fundamentally different technologies exist for harvesting sunlight to offset fossil fuel use-solar thermal (ST) and photovoltaic (PV) collectors. The former convert sunlight into heat while the later convert sunlight directly into electricity (although electricity can be converted into heat via heat pumps and/or resistance heating). If/when factories transition towards utilizing their rooftops for solar harvesting, an essential question will be: which solar technology, or a mix of technologies, should be chosen for factory rooftops? This paper investigates this (as yet unanswered) question by assessing the global greenhouse gas emission (GHG e ) mitigation potential of PV and ST collectors in a side-by-side mix (e.g. a percentage where 0% is solely PV and 100% is solely ST available roof area coverage) to supply medium temperature heat (150°C-400°C) for industrial processes. It was found that in most locations globally, a mix of both technologies optimizes the solar output. Globally, installing the optimum PV:ST mix can save up to 141.8 or 205.8 kt CO 2e over installing solely PV or solely ST collectors, respectively. Another interesting finding of this study was that GHG e mitigation potential stems largely from where the solar collectors were manufactured (i.e. the embodied emissions from using local primary energy to fabricate the collectors). Thus, this study reveals that project managers, policymakers, corporate sustainability directors, etc could achieve maximum global GHG e mitigation through simply considering a mix of solar collector technologies and the best practices for manufacturing them. Nomenclatures PVPhotovoltaic ST Solar thermal collector SF Annual solar fraction (contribution) GHG Greenhouse gas CO 2e Equivalent carbon dioxide EM Emission EL Electricity NG Natural gas kt kilo tonne Mt Million tonne GHI Global horizontal irradiance (W m −2 ) DNI Direct normal irradiance (W m −2 ) DNI ratio GHI/DNI (%) GHG e Greenhouse gas emission (kg CO 2e /m 2 ap ) GHG e-Sav Further greenhouse gas emission savings using OPEN ACCESS RECEIVED

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“…The Middle East countries are one of the regions which face water scarcity due to the population growth and also a natural cycle of renewable fresh water . The brackish water with high salinity amount is one of the effluent streams which treat the sea and dry ecosystems . In other word, the disposal of this concentrated stream makes new concerns for environmental engineers.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] The brackish water with high salinity amount is one of the effluent streams which treat the sea and dry ecosystems. 4,5 In other word, the disposal of this concentrated stream makes new concerns for environmental engineers. In fact, frequent discharges of rejecting streams which contain salt, heavy metals, and free ions into the sea or on the ground disturb the natural culture of the ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of collection, thermal, and conductivity efficiency of a solar distiller pond as a free concentration unit in wastewater treatment process

Farahbod

Omidvar

2018

Energy Science & Engineering

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The performance of one solar pond as a passive step in distilled and potable water production from desalination effluent is surveyed in this research. This solar pond is proposed in a zero discharge desalination process to prevent the salinity shocking which is made by a brackish water stream that exists from desalination units. The solar pond performance is evaluated by measuring three types of efficiency, experimentally, and mathematically. The efficiencies which are defined and calculated from experimental data are conductivity efficiency, thermal efficiency, and water recovery efficiency. The mathematical results are verified by experimental data which has been obtained during a year. The theoretical modelings show very good agreement with experimental data, especially for water collection and conductivity efficiency evaluation. The relative error of theoretical and experimental results for thermal efficiency evaluation through the day and night is obtained 7.2% and 4.9%, respectively.

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Environmental assessment of solar thermal systems for the industrial sector

Cited by 87 publications

References 25 publications

Energy Saving Potential of Industrial Solar Collectors in Southern Regions of Russia: The Case of Krasnodar Region

Energy Saving Potential of Industrial Solar Collectors in Southern Regions of Russia: The Case of Krasnodar Region

Global solar technology optimization for factory rooftop emissions mitigation

Experimental evaluation of collection, thermal, and conductivity efficiency of a solar distiller pond as a free concentration unit in wastewater treatment process

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