Industrial solar thermal applications in Greece

A design methodology to integrate solar heat into industrial process is showed in this chapter, attending restrictions like availability for area of installation, economic, environmental, and operating conditions. The evaluation of each of the restrictions allows responding to real situations that arise in the industrial sector and thereby determining the scenario that best suits the industry. To achieve this objective, the evaluation of two real scenarios was carried out; in the first one there are no installation area limitations, while in the second, only the 50% of required installation area is available. The results obtained when evaluating the scenarios exhibit a direct relationship between the available space, the capital of the investment and the CO2 emissions, but this is not reflected in the same proportion in the operation of the process. In scenario one, the payback of the integrated system is 5.99 years with zero emissions to the atmosphere. For scenario two, the reduction of CO2 emissions is 80.62% with a recovery time of the investment of the integrated system of 2.61 years. In this context, Chemical Vapour Deposition is proposing as a innovative technology to improve the solar devices efficiency.

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“…Then we proceed to determine the cost of the collector network, C SCN (USD), using Eq. (9) reported in [17]:…”

Section: Design Of the Solar Collector Networkmentioning

confidence: 98%

“…The cost of the thermal storage system represents 30% of the cost of the solar thermal installation [17] and its operation is essential to store heat, also to dampen fluctuations in environmental variability, and increase the solar fraction of the process, when there is a gap between energy production and demand.…”

Section: Thermal Storage Systemmentioning

confidence: 99%

Solar Energy in Industrial Processes

Martínez-Rodríguez¹,

Fuentes-Silva²

2021

Solar Cells - Theory, Materials and Recent Advances

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“…Solar water heaters (SWHs) consist of solar collectors (flat plate or evacuated tubes), connecting pipes, a water storage tank, and auxiliary heating elements, in which the tank is installed either above solar collectors (thermosyphon systems) or at a lower level (forced circulation). In the domestic sector and in some industries with relatively low energy consumption (food, agro, textiles, chemical, or beverage industries), SWHs (no sun tracking) can be used to produce hot water at 40-80 • C [8]. Solar thermal technology can also be used for industrial heat processes with the required temperatures of 60-260 • C. The processing temperature, the collectors and the load profile are the most important factors for system performance [9].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Subsidy Programs for Solar Thermal Applications: A Case Study for a Remote Island

2019

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Government intervention in the form of financial incentives is crucial for translating customer choice into a larger market share for solar thermal applications. The lengthy subsidy programs for solar water heaters in Taiwan have expanded the local market. On a remote island (Kinmen County), the area of solar collectors that are installed per 1000 inhabitants is 192.9 square meters. This study investigates a market-driven mechanism in terms of disposable income, household structure, building type and financial viability. The dual subsidy programs appear to have distorted the local market. The cumulative energy savings for solar water heaters that are installed is misleading because the systems are over-designed and there is a high replacement rate (or shorter service period).

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“…In households, hotels, factories and other recipients, energy is mainly used to heat water . The domestic solar water heating system (DSWHS) is most widely used to heat water using solar energy and is also one of the most successful renewable energy technologies .…”

Section: Introductionmentioning

confidence: 99%

“…In previous studies, economic and environmental life cycle assessment was used to evaluate the performance of solar heating system. Some software tools such as Gemis, Ecoinvent 2.0, and TRNSYS were applied to model analysis . With these tools, the energy output can be calculated conveniently according to the system details.…”

Section: Introductionmentioning

confidence: 99%

Assessing the potential and benefits of domestic solar water heating system based on field survey

Niu

Hong

Qiang

et al. 2017

Env Prog and Sustain Energy

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Domestic solar water heating system (DSWHS) without auxiliary energy is widely used in loess hilly region of China. However, there is a lack of studies on DSWHS in this region. This article assessed the potential and benefits of DSWHS on the basis of field survey. Results indicate that a DSWHS with evacuated tube collectors (ETC DSWHS), with a collecting area of 2.09 m2 and an average thermal efficiency of 40%, can supply heat of 3661.7 MJ during its valid period of 263 d. A household with an average of 4.9 people consumes annually 11,043.5 kg of hot water supplied by DSWHS. A total of 1238.7 MJ of energy is needed to heat so much water. The actual thermal efficiency of DSWHS is only 13.53%. Clearly, there is a great potential to improve the energy efficiency of DSWHS. DSWHS has low economic benefit because of its low actual thermal efficiency. However, it has enormous environmental benefits and significant social impacts. The 1238.7‐MJ energy provided by it is equal to that provided by 211.6‐kg raw coal, which can emit 454.99‐kg CO2, 3193.79‐g SO2 during use. Rural residents are recommended to use more hot water supplied by DSWHS through increasing the frequency of bathing and cloth washing. The government should further promote DSWHS utilization by driving costs down. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1781–1791, 2018

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Industrial solar thermal applications in Greece

Cited by 58 publications

References 1 publication

Solar Energy in Industrial Processes

Solar Energy in Industrial Processes

The Impact of Subsidy Programs for Solar Thermal Applications: A Case Study for a Remote Island

Assessing the potential and benefits of domestic solar water heating system based on field survey

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