Concentrated evacuated tubes for solar-thermal energy generation using stirling engine

Madduri, Achintya; Loeder, Denise; Beutler, Nic; He, Mike; Sanders, S.R.

doi:10.1109/energytech.2012.6304625

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…Many researchers have studied ETSCs used in water heaters experimentally [46,47], analytically [48,49]. Other researchers have worked on applications of ETSCs in a wide variety of fields [50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68]. Mehta and Rane [69] investigated the liquid desiccant-based air-conditioning system which utilized solar energy with heat pipes as a liquid desiccant regenerator.…”

Section: Evacuated Tube Solar Collectors (Etscs)mentioning

confidence: 99%

Progressive Development and Challenges Faced by Solar Rotary Desiccant-Based Air-Conditioning Systems: A Review

Singh

Das

2021

Processes

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A rotary desiccant-based air-conditioning system is a heat-driven hybrid system which combines different technologies such as desiccant dehumidification, evaporative cooling, refrigeration, and regeneration. This system has an opportunity to utilize low-grade thermal energy obtained from the sun or other sources. In this paper, the basic principles and recent research developments related to rotary desiccant-based cooling systems are recalled and their applications and importance are summarized. It is shown that with novel system configurations and new desiccant materials, there is great potential for improving the performance and consistency of rotary desiccant systems; at the same time, the use of solar energy for regeneration purposes can minimize the operating cost to a great extent. Some examples are presented to demonstrate how rotary desiccant air conditioning can be a promising solution for replacing traditional vapor-compression air-conditioning systems. Recent advances and ongoing research related to solar-powered hybrid rotary desiccant cooling systems are also summarized. The hybrid systems make use of a vapor-compression system in order to have better operational flexibility. These systems, although they consume electrical energy, use solar energy as the principal source of energy, and hence, significant savings of premium energy can be obtained compared to conventional vapor-compression systems. However, further research and development are required in order to realize the sustainable operation of solar rotary desiccant air-conditioning systems, as solar energy is not steady. Reductions in capital cost and size, along with improvements in efficiency and reliability of the system is still needed for it to become a player in the market of air conditioning.

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Section: Evacuated Tube Solar Collectors (Etscs)mentioning

confidence: 99%

Progressive Development and Challenges Faced by Solar Rotary Desiccant-Based Air-Conditioning Systems: A Review

Singh

Das

2021

Processes

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“…Therefore, it is considered that the variation of mean temperature over thermal efficiency is negligible. Thus, several authors have used different configurations to use collectors as evaporators, obtaining good efficiencies [ 32 , 33 , 34 ].…”

Section: Orc Efficienciesmentioning

confidence: 99%

Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System

Leal-Chávez

Beltran-Chacon

Cardenas-Terrazas

et al. 2019

Entropy

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This paper proposes the configuration of an Organic Rankine Cycle (ORC) coupled to a solar domestic hot water system (SDHWS) with the purpose of analyzing the cogeneration capacity of the system. A simulation of the SDHWS was conducted at different temperatures, observing its performance to determine the amounts of useable heat generated by the solar collector; thus, from an energy balance point of view, the amount of heat that may be used by the ORC could be determined. The working fluid that would be suitable for the temperatures and pressures in the system was selected. The best fluid for the given conditions of superheated vapor at 120 °C and 604 kPa and a condensation temperature of 60 °C and 115 kPa was acetone. The main parameters for the expander thermodynamic design that may be used by the ORC were obtained, with the possibility of generating 443 kWh of annual electric energy with 6.65% global efficiency of solar to electric power, or an overall efficiency of the cogeneration system of 56.35% with a solar collector of 2.84 m2.

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“…An ETSC is capable of generating [48] studied a commercial evacuated tube solar hot water system which was used in a thermodynamic engine as a thermal power source. An ETSC is capable of generating [48] studied a commercial evacuated tube solar hot water system which was used in a thermodynamic engine as a thermal power source.…”

Section: Industrial Applicationsmentioning

confidence: 99%

Progress and latest developments of evacuated tube solar collectors

Sabiha

Saidur

Mekhilef

et al. 2015

Renewable and Sustainable Energy Reviews

331

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Concentrated evacuated tubes for solar-thermal energy generation using stirling engine

Cited by 4 publications

References 7 publications

Progressive Development and Challenges Faced by Solar Rotary Desiccant-Based Air-Conditioning Systems: A Review

Progressive Development and Challenges Faced by Solar Rotary Desiccant-Based Air-Conditioning Systems: A Review

Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System

Progress and latest developments of evacuated tube solar collectors

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