A Study on 3D Numerical Model for Plate Heat Exchanger

Wang, Yanan; Lee, Jong-Pyo; Park, Min-Ho; Jin, Byeong-Ju; Yun, Tae-Jong; Song, Young-Ho; Kim, Ill-Soo

doi:10.1016/j.proeng.2017.01.203

Cited by 17 publications

(9 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 2 and Table 1 show the specifications of the capsules. CPHEs A, B, and C have the same width (10 mm) and different lengths (20,15, and 25 mm, respectively), while CPHEs A, D, and E have the same length (20 mm) and different widths (10,5, and 15 mm, respectively).…”

Section: Geometrical Parametersmentioning

confidence: 99%

Influence of capsule length and width on heat transfer in capsule-type plate heat exchangers

Jiang

Zhou²,

Tang

et al. 2019

Advances in Mechanical Engineering

View full text Add to dashboard Cite

Capsule-type plate heat exchanger has the advantages of less deposition and low flow resistance. Based on previous research, numerical studies of capsule-type plate heat exchangers with different capsule lengths and widths for the Reynolds number ranging from 600 to 10,000 are performed. The results show that wake vortices, transverse vortices, and longitudinal vortices generate in the channels by the flow shearing and separation. The vortices promote the swirl and flow destabilization, exchange the fluid between the boundary layer and the mainstream, and thus enhance the heat transfer in the capsule-type plate channels. Wake vortices transform to longitudinal vortices with increasing Re. The number of the longitudinal vortices decreases and the size of the longitudinal vortices increases with increasing Re or the decreasing length−width ratio of the capsule. In addition, Nusselt number and friction factor decrease with the increasing length−width ratio of the capsule.

show abstract

Section: Geometrical Parametersmentioning

confidence: 99%

Influence of capsule length and width on heat transfer in capsule-type plate heat exchangers

Jiang

Zhou²,

Tang

et al. 2019

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…Energies 2017, 10, 1398 3 of 17 (6) The end effects of the first and last channels are neglected. (7) The thermal capacity of the plates is neglected.…”

Section: Modeling Of Plate Heat Exchangermentioning

confidence: 99%

“…In the work of Zhang et al [5], a general three-dimensional distributed parameter model (DPM) was developed for optimal design of the plate-fin heat exchanger. A three-dimensional (3D) numerical model of the plate-type heat exchanger was established, and the flow pattern and heat transfer effect of the cold and hot fluids were analyzed by using ANSYS (ANSYS, Inc., Energies 2017, 10, 1398 2 of 16 Canonsburg, PA, USA) [6]. It can effectively solve the problems of optimization design of a plate-type heat exchanger.…”

Section: Introductionmentioning

confidence: 99%

A Grey-Box Dynamic Model of Plate Heat Exchangers Used in an Urban Heating System

et al. 2017

View full text Add to dashboard Cite

This paper deals with the establishment of a grey-box model of plate heat exchangers. First, a second-order state space model of plate heat exchangers is developed. Then, the model is solved by the white-box method and grey-box method, respectively. In the white-box method, the linearization of the state space model is carried out by implicit difference scheme and the overall heat transfer coefficient was calculated with empirical correlation of the Nusselt number. In the grey-box method, a newly developed parameter identification method was established. The simulation results of two outlet temperatures by the grey-box and white-box method, respectively, are compared with the test data. It is shown that the grey-box method is more suitable and accurate for the simulations of outlet temperatures than the white-box method. Thus, it can provide practitioners and heating engineers with tools to design controllers for district heating systems.

show abstract

“…Moreover, it makes the investigation of a wide range of parameter space and the geometrical modifications of a heat exchanger impossible. The current available research, which uses 3D numerical calculations, is limited to a single pair of plates [20] or focused on a precise detail of a 3D flow feature [21]. Opposite to this, if full geometry is being considered, 2D numerical calculations are still exploited [22].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Flow Maldistribution in Multi-Plate Heat Exchangers Based on Robust 2D Model

2018

View full text Add to dashboard Cite

Plate heat exchangers (PHE) are characterized by high heat transfer efficiency and compactness. An exploitation problem of the PHE is related to flow maldistribution, which can make part of the PHE idle, resulting in overheating and damage. Making geometrical modifications to the PHE can help reduce flow maldistribution. Modifications should be kept to a minimum, so as not to complicate the production process. There is a large number of possible geometrical modifications, which simply considers additional obstacles or stream dividers. To test all of them would be impractical and would also take a prohibitively long amount of time to obtain experimental measurements. A typical PHE is characterized by a complex system of channels. Making numerical calculations of its 3D model can be prohibitively time and resource-consuming. The present work introduces a physically consistent methodology of the transformation of a real 3D geometry to its 2D representation. Its main novelty is to assure the same pressure drop balance remains between the 3D and 2D geometries. This is achieved by a preservation of the same cumulative pressure losses in both geometries. The proposed innovative approach levels the pressure balance difference by adding properly designed local geometrical modifications. The developed methodology allowed a wide range of parameter space and various geometrical modifications to be investigated, and revealed geometrical optimizations leading to the improved performance of the PHE. To minimize the influence of other factors, an incompressible and single-phase flow was studied.

show abstract

A Study on 3D Numerical Model for Plate Heat Exchanger

Cited by 17 publications

References 3 publications

Influence of capsule length and width on heat transfer in capsule-type plate heat exchangers

Influence of capsule length and width on heat transfer in capsule-type plate heat exchangers

A Grey-Box Dynamic Model of Plate Heat Exchangers Used in an Urban Heating System

Numerical Study of Flow Maldistribution in Multi-Plate Heat Exchangers Based on Robust 2D Model

Contact Info

Product

Resources

About