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DOI: 10.4121/91f21faa-a010-47bc-97b1-4262d6e387ae

Pineda Quijano, Diego; Goemans, Michiel; Infante Ferreira, Carlos A.; Brück, Ekkes (2025): Data and code underlying Chapter 5 of the PhD thesis "Advanced magnetocaloric regenerators for heat pump applications". Version 2. 4TU.ResearchData. software. https://doi.org/10.4121/91f21faa-a010-47bc-97b1-4262d6e387ae.v2

Version 1 - 2025-06-11

Categories

• Mechanical Engineering
• Engineering

Keywords

3D printed blocks data analysis Python code data collection Python code friction losses heat transfer coefficient experiments image processing Python code MnFePSi magnetocaloric material pressure drop experiments Python SEM images of MCM blocks

Time coverage

2024

Licence

CC BY 4.0

Interoperability

• RO-Crate Metadata

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by Diego Pineda Quijano , Michiel Goemans, Carlos A. Infante Ferreira, Ekkes Brück

We investigated the flow and heat transfer characteristics of blocks made from MnFePSi magnetocaloric material produced using an extrusion-based additive manufacturing technique. An experimental setup was developed to collect data on pressure drop, flow rate, bulk fluid temperature, and solid surface temperature. Six samples were tested, each fabricated with varying fiber diameters and inter-fiber spacings, covering a range of void fractions and surface areas. The overlall dimensions of the samples were 16.1 x 16.1 x 6.2 mm^3. Pressure drop experiments were conducted for each sample at three distinct temperatures, approximately 7 °C, 22 °C, and 50 °C. For each temperature, the flow rate ranged from values above 2 Lpm to below 0.4 Lpm. Heat transfer experiments were performed by self-heating the samples using electrical current to create a temperature difference with the water stream. The temperatures of the 4 surfaces of the blocks parallel to the flow direction were recorded, and a heat transfer model was used to derive heat transfer coefficients. This repository stores two datasets related to this research project. One dataset consists of .csv files with pressure drop and heat transfer data generated by a custom-developed data logging system. A second dataset contains scanning electron microscope (SEM) images of the top and bottom surfaces of the 3D printed blocks, taken to determine their average fiber diameter and inter-fiber spacing.

History

• 2025-06-11 first online

• 2025-06-12 published, posted

Publisher

4TU.ResearchData

Format

pressure drop and heat transfer data / .csv, sample images / .tif, image metadata / .txt, code for data collection and analysis / .py

Code hosting project url

https://github.com/diego-pineda/Keithley_Arduino_data_logger_and_controller.git

Funding

• Integrale Energietransitie in Bestaande Bouw (grant code TEUE919003) Ministerie van Economische Zaken & Klimaat en het Ministerie van Binnenlandse Zaken & Koninkrijksrelaties

Organizations

TU Delft, Faculty of Applied Sciences, Department of Radiation Science and Technology, Fundamental Aspects of Materials and Energy