The applicability of the EHD technique for convective boiling of refrigerant blends -- Experiment with R-404A
Book
·
OSTI ID:392513
- Univ. of Maryland, College Park, MD (United States)
The applicability of the electrohydrodynamic (EHD) technique for convective boiling heat transfer of R-404A (an azeotropic refrigerant mixture consisting of 44% R-125, 52% R-143a, and 4% R-134a) was addressed experimentally. Experiments were performed as a function of parametric values of electrical field potential, average vapor quality in the test section, heat flux, and the mass flux. All experiments were performed in a 0.5-in. commercially available microfin tube. It is demonstrated that R-404A responds favorably to the EHD effect, yielding nearly a fourfold increase in the heat transfer coefficients in the present experiments with negligible EHD electrical power consumption.
- OSTI ID:
- 392513
- Report Number(s):
- CONF-960254--
- Country of Publication:
- United States
- Language:
- English
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