Experimental Study on Flow Boiling Heat Transfer Characteristics of Ammonia in Microchannels

Huang, Yi; Yang, Qi; Zhao, Jiyun; Miao, Jun; Shen, Xiaobin; Fu, Weichun; Wu, Qi; Guo, Yuandong

doi:10.1007/s12217-020-09786-z

Cited by 15 publications

(4 citation statements)

References 40 publications

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“…--Gong (2013) [187] R600a p sat = 0.1-0.5 MPa q = 20-150 NA Jung et al [220] 6.9 --Huang (2020) [188] R717 * 97.5% ± 30% Koyama (2014) [192] R717 p sat = 0.7, 0.9 MPa q = 10, 15, 20 G = 5-7.5 ) . ℎ = 7.4756p .…”

Section: (All Data)mentioning

confidence: 99%

A Systematic Review on Heat Transfer and Pressure Drop Correlations for Natural Refrigerants

Carella,

D’Orazio

2024

Energies

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Due to environmental concerns, natural refrigerants and their use in refrigeration and air conditioning systems are receiving more attention from manufacturers, end users and the scientific community. The study of heat transfer and pressure drop is essential for accurate design and more energy efficient cycles using natural refrigerants. The aim of this work is to provide an overview of the latest outcomes related to heat transfer and pressure drop correlations for ammonia, propane, isobutane and propylene and to investigate the current state of the art in terms of operating conditions. Available data on the existing correlations between heat transfer coefficients and pressure drops for natural refrigerants have been collected through a systematic search. Whenever possible, validity intervals are given for each correlation, and the error is quantified. It is the intention of the authors that this paper be a valuable support for researchers and an aid to design, with particular reference to heat pumps. A procedure based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement was adopted, and the Scopus database was used to query the relevant literature. A total of 135 publications qualified for inclusion in the survey; 34 articles report experimental investigations for unusual geometric conditions. Of the 101 selected papers related to usual geometric conditions, N = 50 deal only with HTC, N = 16 deal only with pressure drop and the remainder (N = 35) analyse both HTC and pressure drop. Among the 85 HTC papers, N = 53 deal with the evaporating condition, N = 30 with condensation and only N = 2 with the heat transfer correlations under both conditions. Most of the 101 articles concern propane and isobutane. The high temperatures are less widely investigated.

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Section: (All Data)mentioning

confidence: 99%

A Systematic Review on Heat Transfer and Pressure Drop Correlations for Natural Refrigerants

Carella,

D’Orazio

2024

Energies

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“…The test data derived from the experiment study [19] of flow boiling in micro-channel are used for model validation. The traditional refrigerant R22 is selected in the experiment [19].…”

Section: Model Validationmentioning

confidence: 99%

“…The test data derived from the experiment study [19] of flow boiling in micro-channel are used for model validation. The traditional refrigerant R22 is selected in the experiment [19]. Micro-channel sizes and operating parameters in the experiment [19] are shown in table 3.…”

Section: Model Validationmentioning

confidence: 99%

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Simulation Research on Flow Boiling and Heat Transfer of Micro-channel for Electronic Cooling

Yang

Zhao

Huang

et al. 2022

J. Phys.: Conf. Ser.

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Micro-channel heat exchanger is a popular device for the electronic cooling. Heat transfer of flow boiling in micro-channel is a research hotspot. For the convenience of the theoretical research on micro-channel, a high efficiency simulation model on flow boiling and heat transfer of micro-channel was established. In the simulation research, the influence rules of operating conditions and thermal properties of refrigerants (working fluids) on the flow boiling were studied; the distribution rules along flow direction of characteristic parameters such as vapor quality, Heat Transfer Coefficient (HTC), pressure drop and bottom wall temperature of micro-channel T w were analyzed; the key factors on the distribution of characteristic parameters were proposed. The characteristic parameters based on the refrigerants R134a and R1234ze(E) in micro-channel were compared and researched. According to the simulation results, HTC and pressure drop of R134a are larger and smaller than those of R1234ze(E) respectively, the uniformities of HTC and T w of R134a are all better than those of R1234ze(E) respectively.

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Mixing Enhancement By Gravity-dependent Convection in a Y-shaped Continuous-flow Microreactor

Bratsun

Siraev

Pismen

et al. 2022

Microgravity Sci. Technol.

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Experimental Study on Flow Boiling Heat Transfer Characteristics of Ammonia in Microchannels

Cited by 15 publications

References 40 publications

A Systematic Review on Heat Transfer and Pressure Drop Correlations for Natural Refrigerants

A Systematic Review on Heat Transfer and Pressure Drop Correlations for Natural Refrigerants

Simulation Research on Flow Boiling and Heat Transfer of Micro-channel for Electronic Cooling

Mixing Enhancement By Gravity-dependent Convection in a Y-shaped Continuous-flow Microreactor

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