Innovative thermo-solar air heater
M Cuzminschi, R Gherasim, V Girleanu, A Zubarev, I Stamatin

TL;DR
This paper presents an innovative solar air heater design validated through CFD simulations and 50-week experimental testing, aimed at maintaining indoor thermal comfort with low energy use.
Contribution
The paper introduces a novel solar air heater design validated by CFD simulation and long-term experimental testing for indoor climate control.
Findings
CFD simulation results agree with experimental data
Device effectively maintains indoor thermal conditions
Low energy consumption demonstrated
Abstract
In the present work we elaborate the innovative design of the solar air heater and justify it by a Computational Fluid Dynamics (CFD) simulation, implementing and experimentally testing a sample. We propose to use this device for maintenance of constant ambient conditions for thermal comfort and low energy consumption for indoor environments, inside greenhouses, passive houses, and to protect buildings against temperature fluctuations. We tested the functionality of our sample of the solar air heater for 50 weeks and obtained an agreement between the results of the numerical simulation, implemented using OpenFOAM (an open source numerical CFD software) and the experimental results.
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