Performance Enhancement of Solar Water Heater with a Thermal Water Pump

Sitranon, Jirawat; Lertsatitthanakorn, C.; Namprakai, Pichai; Prathinthong, Naris; Suparos, Taveewat; Roonprasang, Natthaphon

doi:10.1061/(asce)ey.1943-7897.0000216

Cited by 6 publications

(4 citation statements)

References 15 publications

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“…Sitranon et al [29] conducted a study aimed at improving the performance of solar thermal water heater on the roofs of buildings. The heat pump was introduced with the aim of reducing the weight on the roofs of buildings and saving electricity in the water circulation, but the efficiency was not enough.…”

Section: Solar Thermal Pumping Performancementioning

confidence: 99%

A Review on Renewable Energy Systems for Irrigation in Arid and Semi-Arid Regions

Isaías¹,

Cuamba²,

Leão³

2019

JPEE

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The lack of water in arid and semi-arid regions has often limited agricultural production. Indeed, even where water is available for irrigation, the lack of electricity, as well as the high costs of diesel, has created constraints on small farmers. The purpose of this research is to review the renewable energy potential available in arid and semi-arid zones that can be used for irrigation as a substitute for fossil fuels. In this review, the solar thermal irrigation, solar photovoltaic (PV) irrigation, wind pumping and biomass pumping are discussed. The comparison of different hybrid pumping systems and analyses of renewable sources irrigation assessment in arid and semi-arid regions of Mozambique also are discussed. The results of this study showed that there are still certain technological limitations regarding the use of solar thermal energy for irrigation. As far as wind power is concerned, the analysis of the pumping water life cycle cost showed that the wind power water pumping system is more economical and viable compared to the diesel based system. However, the study concluded that photovoltaic solar energy has been shown to be more viable for pumping water for irrigation in arid and semi-arid regions.

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Section: Solar Thermal Pumping Performancementioning

confidence: 99%

A Review on Renewable Energy Systems for Irrigation in Arid and Semi-Arid Regions

Isaías¹,

Cuamba²,

Leão³

2019

JPEE

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“…For instance, using a forced convection system instead of a thermosiphon system leads to improve overall daily efficiency by 22.5% in the performance of the FPCs [9,10]. The efficiency of the collectors is usually enhanced by increasing the flow rate as it minimizes heat losses [8,11]. However, high flow rate requires more pump power and larger pipe diameter, which renders them suboptimal for plant operation.…”

Section: Introductionmentioning

confidence: 99%

Solar Thermal Collector Education using Polysun Simulations Software

Abdel-Aty

Nassief

Mikhail

et al. 2020

2020 Transnational Engineering Education Using Technology (TREET)

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There are a variety of solar thermal collectors available in the market today. These collectors are typically manufactured in diverse countries and have different performance characteristics. For homeowners and commercial solar solution providers, it is important to know how these collectors will perform to ensure maximum return on investment. Therefore, engineers and technicians need to be trained into how different collectors will perform in different locations. In this article, we demonstrate how a Swiss simulations software package called Polysun can be used to accurately determine the performance of a particular system under real operating conditions. To demonstrate the accuracy of the simulations tool, we show performance comparisons with experimental results for different types of flat plate and evacuated tube solar collectors. We also show examples of exercises that can be implemented in an undergraduate course in solar thermal systems. According to our investigations, the thermal performance predicted by Polysun was in close agreement with our experimental measurements. The outcomes of our investigations can help educators make informed decisions regarding teaching solar thermal systems to undergraduates using state-of-the art simulation and visualization tools.

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“…Sitranon et al [69] conducted a parametric study of the suction head assembly of a thermal water pump with steam as the working fluid and discussed its applications. The study analysed the amount of air that is required to be added to the steam working fluid and looked to shorten the cooling time by employing direct contact cooling.…”

Section: Unconventional Solar Thermal Technologiesmentioning

confidence: 99%

“…The systems consisted of a 2.1 m 2 solar collector at an inclination of 14° made of copper plates and tubes and a 2000 W electric heater to work in conjunction with the solar collector to produce steam coupled with a system described in Fig. 17 based on research conducted by Sitranon et al [69]. The system could pump 215 l of water up to 3 m height working on 6.5 MJ of power from the hybrid system.…”

Section: Conventional Solar Thermal Technologiesmentioning

confidence: 99%

A review of sustainable solar irrigation systems for Sub-Saharan Africa

Wazed

Hughes

O’Connor

et al. 2018

Renewable and Sustainable Energy Reviews

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This investigation focused on the research undertaken on solar photovoltaic (PV) and solar thermal technologies for pumping water generally for irrigation of remote rural farms specifically considering the Sub-Saharan African region. Solar PV systems have been researched extensively for irrigation purposes due to the rise in Oil prices and the upscaling in commercialisation of PV technology. Based on the literature the most effective PV system is presented for the irrigation of a small scare remote rural farm with respect to the cost, pumping capacity and system efficiency. Similarly, solar thermal systems are reviewed and the most effective system described. Unlike PV technology, solar thermal technology for water pumping is lacking especially in small scale operations. However, with the possibility of local production, low investment cost, easy maintenance and lower carbon footprint, solar thermal water pumping technologies may be able to overcome the shortcomings of the PV technology that has stopped widespread use of the technology for irrigation applications. Taking into consideration recent developments in concentrated solar technologies using the Stirling engine, novel solar thermal water pumping systems may be developed. This review also highlighted the different methodologies such as modelling, used to investigate and optimise the performance of solar powered systems.

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Performance Enhancement of Solar Water Heater with a Thermal Water Pump

Cited by 6 publications

References 15 publications

A Review on Renewable Energy Systems for Irrigation in Arid and Semi-Arid Regions

A Review on Renewable Energy Systems for Irrigation in Arid and Semi-Arid Regions

Solar Thermal Collector Education using Polysun Simulations Software

A review of sustainable solar irrigation systems for Sub-Saharan Africa

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