Experimental study of nucleate boiling of halocarbon refrigerants on cylindrical surfaces

Ribatski, Gherhardt; Jabardo, José María Sáiz

doi:10.1016/s0017-9310(03)00252-7

Cited by 118 publications

(56 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, this correlation considerably deviated from the data of titanium plain tubes because the material parameter used in this correlation is not valid for titanium tubes. The Ribatski-Jabardo (2003) correlation with a material parameter of 90 has the best agreement with the titanium plain tube.…”

Section: Discussionmentioning

confidence: 87%

“…The decrement is greater for TE01 Stephan-Abdelsalam (1980) 33.6 24.5 20.4 9. 2 Jung et al (2003) 8.7 17.2 -2.9 10.5 Ribatski-Jabardo (2003) 12.0 13.3 0.7 5.8 Gorenflo et al (2010) 4.0 7.9 93.9 38.6 but much moderate for TE03, therefore the rank of enhancement ratio is interchanged between TE01 and TE03. In general, at lower saturation temperatures, most fluids show lower nucleate boiling HTC mainly due to their greater surface tension.…”

Section: Plain Tubes -Copper and Titanium Tubesmentioning

confidence: 99%

See 1 more Smart Citation

Enhancement of R1234ze(Z) pool boiling heat transfer on horizontal titanium tubes for high-temperature heat pumps

Nagata

Kondou

Koyama

2017

Science and Technology for the Built Environment

View full text Add to dashboard Cite

R1234ze(Z), which has a global warming potential of less than 1, is a promising alternative refrigerant for hightemperature heat pumps designed for heat recovery in the industrial sector. The use of titanium as the material for heat exchangers exposed to acid exhaust is one solution to prevent oxidation. In this study, the pool boiling heat transfer characteristics outside of horizontal titanium tubes were experimentally investigated for R1234ze(Z). A plain tube and three enhanced titanium tubes were tested at saturation temperatures from 10 to 60 °C and heat fluxes from 0.55 to 79.8 kW m-2. Compared to the plain tube, the tested enhanced tube exhibited a 2.8 to 5.1 times higher heat transfer coefficient, on average, in the test range, which could compensate for the disadvantage in the thermal conductivity of titanium. The enhancement ratio predominantly depends on the saturation temperature and the wall heat flux. At conditions of higher saturation temperatures and lower heat fluxes, where smaller bubbles are observed, test tubes with smaller opening width exhibit higher heat transfer coefficients. The experimental results indicate the importance of fin geometry optimization to the operation conditions.

show abstract

Section: Discussionmentioning

confidence: 87%

Section: Plain Tubes -Copper and Titanium Tubesmentioning

confidence: 99%

Enhancement of R1234ze(Z) pool boiling heat transfer on horizontal titanium tubes for high-temperature heat pumps

Nagata

Kondou

Koyama

2017

Science and Technology for the Built Environment

View full text Add to dashboard Cite

show abstract

“…It is worthwhile pointing out again that the predicted boiling HTCs by the models have a strong dependence on the surface roughness of the tube, which was not experimentally measured. Therefore, the agreement between the calculated and experimental values of the boiling HTCs could be affected by the poor definition of the surface roughness of the tube, as stated in [8].…”

Section: Comparison With Experimental Correlationsmentioning

confidence: 99%

“…References [6,7] analyze experimentally nucleate boiling of 8 pure halogenated refrigerants on smooth tube and three enhanced tubes. Reference [8] includes the study of 5 refrigerants on smooth tubes made of different materials and several roughnesses. Reference [9] studies nucleate boiling with R-134a and 4 enhanced surfaces as well.…”

Section: Introductionmentioning

confidence: 99%

Experimental Determination of the Boiling Heat Transfer Coefficients of R-134a and R-417A on a Smooth Copper Tube

Pardiñas

Fernández-Seara

Piñeiro-Pontevedra

et al. 2014

Heat Transfer Engineering

View full text Add to dashboard Cite

show abstract

“…Having analysed the impact of roughness, Ribatski and Saiz Jabardo [6] stated that an increase in the heat transfer rate that accompanies increased roughness results from the growing density of the active nucleation centres which generate vapour on the heating surface. Consequently, heat transfer on the surface that has greater roughness is more intensive, which is confirmed by the results obtained by the authors.…”

Section: Introductionmentioning

confidence: 99%

Boiling heat transfer on fins – experimental and numerical procedure

Orzechowski

Tyburczyk

2014

EPJ Web of Conferences

View full text Add to dashboard Cite

Abstract. The paper presents the research methodology, the test facility and the results of investigations into non-isothermal surfaces in water boiling at atmospheric pressure, together with a discussion of errors. The investigations were conducted for two aluminium samples with technically smooth surfaces and thickness of 4 mm and 10 mm, respectively. For the sample of lower thickness, on the basis of the surface temperature distribution measured with an infrared camera, the local heat flux and the heat transfer coefficient were determined and shown in the form of a boiling curve. For the thicker sample, for which 1-D model cannot be used, numerical calculations were conducted. They resulted in obtaining the values of the local heat flux on the surface the invisible to the infrared, camera i.e. on the side on which the boiling of the medium proceeds.

show abstract

Experimental study of nucleate boiling of halocarbon refrigerants on cylindrical surfaces

Cited by 118 publications

References 14 publications

Enhancement of R1234ze(Z) pool boiling heat transfer on horizontal titanium tubes for high-temperature heat pumps

Enhancement of R1234ze(Z) pool boiling heat transfer on horizontal titanium tubes for high-temperature heat pumps

Experimental Determination of the Boiling Heat Transfer Coefficients of R-134a and R-417A on a Smooth Copper Tube

Boiling heat transfer on fins – experimental and numerical procedure

Contact Info

Product

Resources

About