Thermo-economical analysis between new absorption–ejector hybrid refrigeration system and small double-effect absorption system

Jiang, Liben; Gu, Zhaolin; Xiao, Feng; Li, Yun

doi:10.1016/s1359-4311(02)00004-2

Cited by 37 publications

(10 citation statements)

References 6 publications

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“…Concerning the nozzle shape and position an evident link between primary nozzle position and ejector performance (COP, CC and critical condenser pressure) in the case of a refrigerator with jet was found [101]. The importance of Nozzle Exit Position (NXP) and shape was also investigated by means of CFD and experimental techniques finding the great influence of the nozzle position as ejector design parameter [60,62,[208][209][210].…”

Section: Discussionmentioning

confidence: 99%

“…However, it likely will remain restricted to industrial applications, as it is unsuitable for domestic use due to its toxicity [13]. Another interesting option is methanol thanks to its appropriate thermo-physical properties, low environmental impact and low cost, and it is able to provide a cooling effect at evaporation temperatures below the freezing point of water [109,[206][207][208][209]. On the other hand, methanol is toxic and highly flammable; therefore, important preventive measures should be taken.…”

Section: Working Fluids In Ejector Refrigerationmentioning

confidence: 99%

“…Abed et al [297] propose internal heat recovery for enhancing the system performance (ie., the COP was reported to increase by the 12.2%). Jiang et al [208] compared, via a thermo-economic analysis, three EAbRSs and a double-effect absorption cycle. The former system has a value of COP of up to 0.9-1.0 (T g ¼160°C), which is slightly lower than that of the commercial double-effect absorption refrigeration system.…”

Section: Standard Eabrsmentioning

confidence: 99%

See 2 more Smart Citations

Ejector refrigeration: A comprehensive review

Besagni

Mereu

Inzoli

2016

Renewable and Sustainable Energy Reviews

405

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a b s t r a c tThe increasing need for thermal comfort has led to a rapid increase in the use of cooling systems and, consequently, electricity demand for air-conditioning systems in buildings. Heat-driven ejector refrigeration systems appear to be a promising alternative to the traditional compressor-based refrigeration technologies for energy consumption reduction. This paper presents a comprehensive literature review on ejector refrigeration systems and working fluids. It deeply analyzes ejector technology and behavior, refrigerant properties and their influence over ejector performance and all of the ejector refrigeration technologies, with a focus on past, present and future trends. The review is structured in four parts. In the first part, ejector technology is described. In the second part, a detailed description of the refrigerant properties and their influence over ejector performance is presented. In the third part, a review focused on the main jet refrigeration cycles is proposed, and the ejector refrigeration systems are reported and categorized. Finally, an overview over all ejector technologies, the relationship among the working fluids and the ejector performance, with a focus on past, present and future trends, is presented.

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Section: Discussionmentioning

confidence: 99%

Section: Working Fluids In Ejector Refrigerationmentioning

confidence: 99%

Section: Standard Eabrsmentioning

confidence: 99%

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Ejector refrigeration: A comprehensive review

Besagni

Mereu

Inzoli

2016

Renewable and Sustainable Energy Reviews

405

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“…Considering the current British economic situation, i 5 5.0% (base interest rate of Bank of England), Cele 5 £0.10 kWh À1 (EDF Energy, East Midland standard price), running hours is 1000 h per year [10], and life-year in operation is n 5 20 as both PV panel and TEC unit are solid-state equipments except fans and a blower. One of the advantages is longer life and no or little maintenance, compared to the traditional cooling systems.…”

Section: Economic Analysismentioning

confidence: 99%

An investigation of thermoelectric cooling devices for small-scale space conditioning applications in buildings

Gillott

Jiang

Riffat

2009

Int. J. Energy Res.

Self Cite

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SUMMARYThis paper presents the study of a thermoelectric cooler (TEC) designed for small-scale space conditioning applications in buildings. A theoretical study was undertaken to find the optimum operating conditions, which were then applied in the laboratory testing work. A TEC unit was assembled and tested under laboratory conditions. Eight pieces of UltraTEC were shown to generate up to 220 W of cooling with a COP of 0.46 under the input current of 4.8 A for each module. Thermo-economical analysis was carried out and results showed that a system with PV panel can compete with an equivalent system without a PV panel when PV costs fall down to or lower than £1.25 per Watt. For the cases without a PV panel, the system with a high level of TEC power input delivered a better performance in terms of the average cooling energy price than that system with a low level of TEC power input after critical interest rate (currently 4%).

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“…As is well known, ejectors can increase the pressure and do not consume mechanical energy directly, which are the main characteristics of ejectors [17][18][19][20]. Due to these characteristics, applying an ejector may be a simpler and safer technologically than applying mechanical devices, which can increase pressure, such as a compressor, pump.…”

Section: Introductionmentioning

confidence: 99%