Šilumnešio Debito Įtakos Fazinio Virsmo Medžiagos Veikimui Tyrimas / Investigation of the Influence of Mass Flow Rate on Phase Change Material Behaviour

Pakalka, Saulius; Valančius, Kęstutis; Damonskis, Matas

doi:10.3846/mla.2019.10578

Cited by 1 publication

(2 citation statements)

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“…This experimental investigation complements the previous research on possibilities to use PCM in heat exchangers-accumulators, simulation of PCM characteristics in thermal energy storage and investigation of the influence of mass flow rate on PCM behaviour (Pakalka et al, 2017(Pakalka et al, , 2018(Pakalka et al, , 2019.…”

Section: Introductionsupporting

confidence: 55%

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Effect of Open and Closed Operation Modes on the Performance of Phase Change Material Based Copper Heat Exchanger

Pakalka

Valančius

Damonskis³

2020

International Conference “Environmental Engineering”

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Many studies related to latent heat thermal energy storage (LHTES) and performance of phase change materials (PCM) are focused on melting and solidification processes. Investigating and understanding the influence of various parameters on PCMs based thermal energy storage is the key to developing innovative and efficient energy storage systems. The aim of this study is to experimentally compare and assess the performance of phase change material based copper heat exchanger (PCM-HX) in different modes of operation. This PCM-HX is designed to be used in systems where thermal energy can be stored up to 90 °C and an organic PCM RT82 was selected as the energy storage medium. This study focuses on the pressure impact on the PCM melting (charging) and solidification (discharging) processes. Two different modes of operation were analysed: Open and Closed. In the case of an Open mode, the storage tank of PCM-HX was open to the atmosphere (pressure control valve open), in the case of Closed mode the storage tank was closed (pressure control valve closed). PCM charging and discharging processes were conducted and the PCM-HX performances were tested at different pressure inside the storage tank.

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Section: Introductionsupporting

confidence: 55%

“…The experimental setup employed in the present study is the same as that used in our previous study (Pakalka et al, 2019). Additionally, PCM-HX was equipped with a manual pressure control valve (vent valve) and a pressure sensor.…”

Section: Experimental Setup and Proceduresmentioning

confidence: 99%