A novel thermally driven rotor-vane/pressure-exchange ejector refrigeration system with environmental benefits and energy efficiency

Hong, Woo Jong; Alhussan, Khaled; Zhang, Hongfang; Garris, Charles A.

doi:10.1016/j.energy.2004.03.050

Cited by 23 publications

(11 citation statements)

References 7 publications

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“…A large amount of studies is focusing on the role of nozzle shape for improving the performances. Some examples may be the rotorvane/pressure-exchange ejector [246], the petal nozzle [247], the lobel nozzle [248] and circle, cross-shaped, square, rectangular and elliptical nozzles [249]. Another work is the experimental investigation of Rao and Jagadeesh, testing Tip Ring Supersonic Nozzle and Elliptic Sharp Tipped Shallow nozzles [250] of the research of Zhu and Jiang on a bypass ejector [251].…”

Section: Standard Sersmentioning

confidence: 99%

Ejector refrigeration: A comprehensive review

Besagni

Mereu

Inzoli

2016

Renewable and Sustainable Energy Reviews

414

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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: Standard Sersmentioning

confidence: 99%

Ejector refrigeration: A comprehensive review

Besagni

Mereu

Inzoli

2016

Renewable and Sustainable Energy Reviews

414

View full text Add to dashboard Cite

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“…• develop alternative ejector types, such as rotodynamic ejectors [21] that offer potential for higher efficiencies.…”

Section: Research and Development Needsmentioning

confidence: 99%

A review of emerging technologies for food refrigeration applications

Tassou

Lewis

et al. 2010

Applied Thermal Engineering

205

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“…Around the same period Garris and his team [26][27][28][29][30] proposed the concept of the pressure exchange ejector. It is a dynamic component including a free-spinning rotor mounted on a fixed spindle in the primary side of the fluid flow ( Figure 6b) and allowing for this stream to expand more efficiently than it would in a static ejector version, as well as enhancing stream mixing.…”

Section: Ejector Geometrymentioning

confidence: 99%

“…The primary flow velocity would reduce through expansion in the rotor, leading to a high non-dissipative energy exchange with the induced flow. With total pressure contours at different rotor locations, Hong et al [29] underlined the fact that the momentum transfer by pressure exchange, made on a shorter distance than in a conventional ejector was more efficient. To date there have been no experimental data available for this configuration, due to difficulties in putting it into practice.…”

Section: Ejector Geometrymentioning

confidence: 99%

Current Advances in Ejector Modeling, Experimentation and Applications for Refrigeration and Heat Pumps. Part 1: Single-Phase Ejectors

et al. 2019

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Ejectors used in refrigeration systems as entrainment and compression components or expanders, alone or in combination with other equipment devices, have gained renewed interest from the scientific community as a means of low temperature heat recovery and more efficient energy use. This paper summarizes the main findings and trends, in the area of heat-driven ejectors and ejector-based machines, using low boiling point working fluids, which were reported in the literature for a number of promising applications. An overall view of such systems is provided by discussing the ejector physics principles, as well as a review of the main developments in ejectors over the last few years. Recent achievements on thermally activated ejectors for single-phase compressible fluids are the main focus in this part of the review. Aspects related to their design, operation, theoretical and experimental approaches employed, analysis of the complex interacting phenomena taking place within the device, and performance are highlighted. Conventional and improved ejector refrigeration cycles are discussed. Some cycles of interest employing ejectors alone or boosted combinations are presented and their potential applications are indicated.

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A novel thermally driven rotor-vane/pressure-exchange ejector refrigeration system with environmental benefits and energy efficiency

Cited by 23 publications

References 7 publications

Ejector refrigeration: A comprehensive review

Ejector refrigeration: A comprehensive review

A review of emerging technologies for food refrigeration applications

Current Advances in Ejector Modeling, Experimentation and Applications for Refrigeration and Heat Pumps. Part 1: Single-Phase Ejectors

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