Spatial orientation as a factor in flow boiling heat transfer of cooling liquids in enhanced surface minichannels

K Strąk, M Piasecka, B Maciejewska - … Journal of Heat and Mass Transfer, 2018 - Elsevier
This paper presents the results of flow boiling heat transfer in an asymmetrically heated
rectangular minichannel oriented with seven inclination angles: 0°, 30°, 60°, 90°, 120°, 150° …

Trefftz function-based thermal solution of inverse problem in unsteady-state flow boiling heat transfer in a minichannel

B Maciejewska, M Piasecka - International Journal of Heat and Mass …, 2017 - Elsevier
The paper shows the results for flow boiling heat transfer in a 1.7 mm deep minichannel
vertically oriented with FC-72 Fluorinert as a working fluid. The heated wall of the …

Two-phase inverse Stefan problems solved by heat polynomials method

SA Kassabek, D Suragan - Journal of Computational and Applied …, 2023 - Elsevier
In this paper, two-phase inverse Stefan problem are investigated using the method of heat
polynomials. The approximate solution of the problem is presented in the form of linear …

Time-dependent heat transfer calculations with Trefftz and Picard methods for flow boiling in a mini-channel heat sink

M Piasecka, S Hożejowska, B Maciejewska… - Energies, 2021 - mdpi.com
The intensification of heat transfer using two-phase boiling flow in mini-channels is widely
used to dissipate the high heat fluxes in miniaturized electronic devices. However, the …

A novel floodwave response model for time-varying streambed conductivity using space-time collocation Trefftz method

J Fang, MZ Al-Hamdan, AM O'Reilly, Y Ozeren… - Journal of …, 2023 - Elsevier
Streambed conductivity can vary substantially over short time intervals during flood events,
altering groundwater–surface water interactions. Traditional floodwave response models …

An application of the non-continuous Trefftz method to the determination of heat transfer coefficient for flow boiling in a minichannel

B Maciejewska, M Piasecka - Heat and Mass Transfer, 2017 - Springer
The paper presents an application of the semi-analytical method, called the non-continuous
Trefftz method, to the calculation of the heat transfer coefficients. It is very effective method …

The solution of a two-dimensional inverse heat transfer problem using two methods: The Trefftz method and the Beck method

B Maciejewska, K Strak, M Piasecka - … Methods for Heat & Fluid Flow, 2018 - emerald.com
Purpose This paper aims to focus on flow boiling heat transfer in an asymmetrically heated
minichannel. Two-dimensional inverse heat transfer problem was solved using the Trefftz …

The Study of the Onset of Flow Boiling in Minichannels: Time-Dependent Heat Transfer Results

B Maciejewska, M Piasecka… - Heat Transfer Engineering, 2021 - Taylor & Francis
The paper describes the results of boiling heat transfer during FC-72 flow in minichannels,
obtained on the basis of time-dependent experiments. The main goal of the work was to …

Time-dependent study of boiling heat transfer coefficient in a vertical minichannel

B Maciejewska, M Piasecka - … Journal of Numerical Methods for Heat …, 2020 - emerald.com
Purpose The purpose of this paper is to determine the time-dependent heat transfer
coefficient during FC-72 flow boiling in a 1.7-mm-deep vertical and asymmetrically heated …

The solution of a two-dimensional inverse heat transfer problem using the Trefftz method

B Maciejewska, K Strąk, M Piasecka - Procedia Engineering, 2016 - Elsevier
This paper deals with a two-dimensional inverse heat transfer problem solved by means of
the Trefftz method. The aim of the calculations was to determine the flow boiling heat transfer …