A review of combined power and cooling cycles

Demirkaya, Goekmen; Padilla, Ricardo Vásquez; Goswami, D. Yogi

doi:10.1002/wene.75

“…The present study not only actualizes the bibliographic review carried out by Ayou et al 3 in 2013, but also includes an overview of hybrid cycles and other novel cycles recently reported in the literature for the simultaneous production of power and cooling. On the other hand, regarding the bibliographic review reported by Demirkaya et al, 4 the present paper not only updates the developments in recent years regarding cogeneration systems but also reports the progress on novel cycles that integrate diverse components in such a way that they cannot be identified as one of the conventional cycles reported by them.…”

Section: Introductionmentioning

confidence: 61%

“…Most of the systems reported expand the vapor in the turbine at high ammonia concentrations to achieve low temperatures to produce the cooling effect. On the other hand, Demirkaya et al 4 carried out a bibliographic review of cogeneration cycles for the same purposes. The authors categorized the cycles based on the type of cooling cycles utilized, such as absorption, adsorption, vapor compression, and ejecto‐compression cycles.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic cycles for the simultaneous production of power and cooling: A comprehensive review

Pacheco‐Reyes

¹

,

Rivera

²

2021

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Summary A comprehensive review of thermodynamic cycles for the simultaneous production of power and cooling is presented. The study not only actualizes the bibliographic reviews previously realized by other authors regarding cycles such as Kalina, Goswami, or modifications of them. This review additionally includes an overview of hybrid cycles and other novel cycles reported in the literature. The hybrid cycles included in the study are systems integrated by two or three conventional cycles, mainly composed of Brayton, Rankine, and ORC for power generation; and compression, absorption, and ejector cycles for cooling production. The other novel cycles mentioned are thermodynamic cycles, which considerably differ from all the others. By using internal rectification, the Goswami cycle increased its efficiency by about 5%; however, by adding diverse components, as a condenser and a subcooler, the efficiency was significantly improved due to the considerable increase of the cooling production. Organic Rankine cycles integrating absorption refrigeration cycles are, in general, the most efficient hybrid cycles, reaching thermal efficiencies close to 40% for the simultaneous production of power and cooling. If a third output was provided, as heating or water distillation, the energy efficiencies were as high as 90%. The main problem with these systems is that, in general, they are too complex and costly because of the considerable number of components. The highest exergy destruction values are reported in solar collectors when used, followed by boilers or generators, and absorbers. The lower production costs were reported with systems integrating a Brayton cycle, an organic Rankine cycle, and an ejector‐cooling cycle. The disadvantage of these systems is that they need high operating temperatures.

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“…Ejector cooling can be used as well for thermally activated chillers in CCP systems [13], where one subcycle is used to obtain the driving force of the ejector, thus creating a vacuum and cooling in the other subcycle. Then, the work potential does not need to run only the ejector.…”

Section: Introductionmentioning

confidence: 99%

Absorption Power and Cooling Combined Cycle with an Aqueous Salt Solution as a Working Fluid and a Technically Feasible Configuration

Novotny¹,

Szucs²,

Spale³

et al. 2021

Preprint

0

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Combined systems for power production and thermally activated cooling have a high potential for improving the efficiency and utilisation of thermal systems. In this regard, various configurations have been proposed and are comprehensively reviewed. They are primarily based on absorption systems and the implementation of multiple levels of complexity and flexibility. The configuration of the absorption power and cooling combined cycle proposed herein has wide commercial applicability owing to its simplicity. The configuration of the components is not new. However, the utilisation of aqueous salt solutions, the comparison with ammonia chiller and with absorption power cycles, the focus on parameters that are important for real-life applications, and the comparison of the performances for constant heat input and waste heat recovery are novel. The proposed cycle is also compared with a system based on the organic Rankine cycle and vapour compression cycle. An investigation of its performance proves that the system is suitable for a given range of boundary conditions from a thermodynamic standpoint, as well as in terms of system complexity and technical feasibility. New possibilities with regard to added power production have the potential to improve the economics and promote the use of absorption chiller systems.

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“…Ejector cooling can be used as well for thermally activated chillers in CCP systems [20], where one subcycle is used to obtain the driving force of the ejector, thus creating a vacuum and cooling in the other subcycle. Then, the work potential does not need to run only the ejector.…”

Section: Introductionmentioning

confidence: 99%

Absorption Power and Cooling Combined Cycle with an Aqueous Salt Solution as a Working Fluid and a Technically Feasible Configuration

Novotny

¹

,

Szucs

²

,

Spale

³

et al. 2021

Energies

8

0

View full text Add to dashboard Cite

Combined systems for power production and thermally activated cooling have a high potential for improving the efficiency and utilisation of thermal systems. In this regard, various configurations have been proposed and are comprehensively reviewed. They are primarily based on absorption systems and the implementation of multiple levels of complexity and flexibility. The configuration of the absorption power and cooling combined cycle proposed herein has wide commercial applicability owing to its simplicity. The configuration of the components is not new. However, the utilisation of aqueous salt solutions, the comparison with ammonia chiller and with absorption power cycles, the focus on parameters that are important for real-life applications, and the comparison of the performances for constant heat input and waste heat recovery are novel. The proposed cycle is also compared with a system based on the organic Rankine cycle and vapour compression cycle. An investigation of its performance proves that the system is suitable for a given range of boundary conditions from a thermodynamic standpoint, as well as in terms of system complexity and technical feasibility. New possibilities with regard to added power production have the potential to improve the economics and promote the use of absorption chiller systems.

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A review of combined power and cooling cycles

Cited by 17 publications

References 56 publications

Thermodynamic cycles for the simultaneous production of power and cooling: A comprehensive review

Thermodynamic cycles for the simultaneous production of power and cooling: A comprehensive review

Absorption Power and Cooling Combined Cycle with an Aqueous Salt Solution as a Working Fluid and a Technically Feasible Configuration

Absorption Power and Cooling Combined Cycle with an Aqueous Salt Solution as a Working Fluid and a Technically Feasible Configuration

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