A modified k–ε turbulence model for the simulation of two-phase flow and heat transfer in condensers

Comparison of power plant steam condenser heat transfer models for on-line condition monitoring

“…Ramon and Gonzalez developed a 3-D model of a church window type condenser [8], and Prieto et al compared the results of similar model to both HEI correlations and a 2-D simplification of the 3-D model [9]. Hu and Zhang developed improvements to turbulence [10] and inundation [11] modelling for numerical condenser simulations. Zeng et al [12] developed 3-D models of three power plant condenser configurations, and compared the results to HEI correlations.…”

A Numerical Simulation on Phase Change of Steam in a Microchannel Condenser

“…The model is applied to various flow conditions including thermal non equilibrium and variable cross section ducts. A modified k-ε turbulence model was developed by Hu and Zhang [8] to simulate the gas-liquid two-phase flow and heat transfer in steam surface condensers, using a quasi-three-dimensional algorithm. The results obtained from the proposed model agree well with the experimental results.…”

Three-dimensional numerical model for the two-phase flow and heat transfer in condensers

“…Moreover, Zhang and Bokil [24] included the interphase effect and used a two-phase model to simulate a condenser. Hu and Zhang [19] developed a modified k-e turbulence model for two-phase flows in condensers, and later assessed the effects of different closure correlation on the numerical simulations [20] and proposed a new correlation to account for the effect of the inundation on the convective heat transfer in condensers [21].…”

“…On the other hand, the presence of the tube supports restricts the shell-side flow in the third direction. In the past, the majority of the researchers used two-dimensional or at most quasi-three-dimensional models for condenser simulations [19][20][21]. In this work, the threedimensional multi-phase Eulerian-Eulerian model is adopted and the results are compared with the quasi-three-dimensional model to assess the effect of the three-dimensionality on the accuracy of the two-phase flow modeling in a condenser.…”

“…In Section 4, the results are presented and discussed. Two different approaches are taken to analyze the fluid flow and heat transfer in the condenser: (1) the quasi-threedimensional modeling approach proposed in the previous work [19,22,24] and (2) the three-dimensional modeling approach proposed in the present work. The results from both approaches are provided in Section 4 and compared with the experimental data, and finally, conclusion and future work are given in Section 5.…”