Development of a zero-energy-sauna: Simulation study of thermal energy storage

Schaefer, Marion C.; Raab, A.; Gerle, Martina; Pfeiler, D.; Vogel, Julian; Thess, André

doi:10.1016/j.enbuild.2021.111659

Cited by 5 publications

(2 citation statements)

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“…For this purpose, a model of the novel facade-integrated adsorption system is developed. The model of the adsorber is based on previous works of the co-author Schaefer [32][33][34] and is adjusted for the application as facade-integrated element. Furthermore, models of the evaporator and the condenser are developed.…”

Section: Objectives Of Studymentioning

confidence: 99%

“…Therefore, the model has to be extended to include the heat transport in the metal fins and absorber sheet. As the applied extension is already presented by Schaefer et al for another application in [34], only a short summary is given here. For the metal fins integrated into the adsorbent bulk, the one-dimensional transient heat equation [36] is applied, which reads as follows:…”

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confidence: 99%

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Dynamic Modeling and Simulation of a Facade-Integrated Adsorption System for Solar Cooling of Lightweight Buildings

Boeckmann,

Marmullaku,

Schaefer

2024

Energies

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Reductions of carbon dioxide emissions from the building sector are mandatory for climate protection. This calls for both a reduction of the construction material and energy as well as a reduction of the operational energy. Against this background, a novel facade-integrated adsorption system for solar cooling of lightweight buildings is proposed and theoretically investigated in this work. For this purpose, a detailed simulation model is developed to analyze both the processes in the single components as well as the overall system behavior. The proposed system consists of the three components adsorber, condenser and evaporator, which are connected vacuum-tight and are coupled by vapor transfer. The simulation results of a defined reference case yield cooling rates of 54 W per installed square meter of adsorber facade. The cooling power can be maintained for 12 h, confirming the applicability of the proposed system. Furthermore, a comprehensive parametric study is carried out in order to identify an optimum set of parameter values for maximum cooling rate under the assumed conditions. The results reveal that controlled constant cooling rates of 105 W per square meter of adsorber facade can be reached and a maximum peak power of 145 W per square meter of adsorber facade is possible.

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Section: Objectives Of Studymentioning

confidence: 99%

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confidence: 99%