000128084 001__ 128084
000128084 005__ 20241125101152.0
000128084 0247_ $$2doi$$a10.1016/j.est.2023.108428
000128084 0248_ $$2sideral$$a135270
000128084 037__ $$aART-2023-135270
000128084 041__ $$aeng
000128084 100__ $$aKönig-Haagen, Andreas
000128084 245__ $$aAnalysis of the discharging process of latent heat thermal energy storage units by means of normalized power parameters
000128084 260__ $$c2023
000128084 5060_ $$aAccess copy available to the general public$$fUnrestricted
000128084 5203_ $$aMany efforts are being made to mitigate the main disadvantage of most phase change materials – their low thermal conductivities – in order to deliver latent heat energy storage systems (LHESS) with adequate performance. However, the effect of applied methods is difficult to compare as they are mostly tested for different storage types and sizes and/or different boundary and initial conditions, which hinders rapid progress in the optimization of these approaches. In this work, a previously developed method for comparing the performance of LHESS is applied to experimental results of different storage systems under different conditions and subsequently analyzed and further refined. The main idea of the method is to normalize the power with the volume and a reference temperature difference and compare its mean value plotted over the normalized mean capacity flow of the heat transfer fluid (HTF). This enables the presentation of the results in a compact and easily comparative way. Attention has to be paid when it comes to the choice of the reference temperature difference, the reference volume and the method for calculating the mean value. Two variants of calculating the mean value (time-weighted and energy-weighted) and two variants of reference temperatures for determining the temperature difference to the inlet temperature of the HTF (initial temperature and melting temperature) are applied and discussed in detail. While the method significantly increases the comparability of results, none of the options listed above are without drawbacks. Approaches are shown to reduce or eliminate these drawbacks in the future. The recommendation for comparing different LHESS under different conditions is to use the method described here and clearly state the chosen reference temperature, reference volume and method for calculating the mean value.
000128084 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000128084 590__ $$a8.9$$b2023
000128084 592__ $$a1.595$$b2023
000128084 591__ $$aENERGY & FUELS$$b29 / 171 = 0.17$$c2023$$dQ1$$eT1
000128084 593__ $$aElectrical and Electronic Engineering$$c2023$$dQ1
000128084 593__ $$aRenewable Energy, Sustainability and the Environment$$c2023$$dQ1
000128084 593__ $$aEnergy Engineering and Power Technology$$c2023$$dQ1
000128084 594__ $$a11.8$$b2023
000128084 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000128084 700__ $$aHöhlein, Stephan
000128084 700__ $$0(orcid)0000-0001-7360-4188$$aLázaro, Ana$$uUniversidad de Zaragoza
000128084 700__ $$0(orcid)0000-0002-8015-4469$$aDelgado, Mónica
000128084 700__ $$aDiarce, Gonzalo
000128084 700__ $$aGroulx, Dominic
000128084 700__ $$aHerbinger, Florent
000128084 700__ $$aPatil, Ajinkya
000128084 700__ $$aEnglmair, Gerald
000128084 700__ $$aWang, Gang
000128084 700__ $$aAbdi, Amir
000128084 700__ $$aChiu, Justin N.W.
000128084 700__ $$aXu, Tianhao
000128084 700__ $$aRathgeber, Christoph
000128084 700__ $$aPöllinger, Simon
000128084 700__ $$aGschwander, Stefan
000128084 700__ $$aGamisch, Sebastian
000128084 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000128084 773__ $$g72, Part C (2023), 108428 [19 pp.]$$pJ. energy storage$$tJournal of Energy Storage$$x2352-152X
000128084 8564_ $$s12421423$$uhttps://zaguan.unizar.es/record/128084/files/texto_completo.pdf$$yVersión publicada
000128084 8564_ $$s2491576$$uhttps://zaguan.unizar.es/record/128084/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000128084 909CO $$ooai:zaguan.unizar.es:128084$$particulos$$pdriver
000128084 951__ $$a2024-11-22-12:07:32
000128084 980__ $$aARTICLE