Development and experimental validation of a transient 2D numeric model for radiant walls

Abstract

Està subjecte a una llicència de Reconeixement-NoComercial-SenseObraDerivada 4.0 de Creative Commons 1 Development and experimental validation of a transient 2D numeric model for radiant walls

Optimization of deterministic controls for a cooling radiant wall coupled to a PV array

“…Previous research related to the present article showed the peak load shifting capability of radiant walls [25], even under internal loads [26]. Moreover, the experimental research was used to validate a numerical model of the radiant wall [27]. This was later implemented in a control study that showed that the potential of the PV array was only exploited if the heat pump was operated under a specific solar control [28].…”

“…Additionally, the model was used to evaluate the most important design parameters of the radiant wall, more details on the validation and the parametric studies were presented in Romani et al [25]. Afterwards, the radiant wall model was integrated to the whole room model, which was developed according to the Seem methodology [27] considering six surfaces. Four walls (East, South, West, and North), ceiling slab, and floor slab are modelled.…”

Building Energy Performance Analysis: An Experimental Validation of an In-House Dynamic Simulation Tool through a Real Test Room

“…Although empirical validation procedures, based on real metering and auditing data, are considered as very reliable procedures [47], they are often used for the validation of tools and mathematical models developed for simulating specific phenomena. In this regard, the literature shows several examples of such a procedure applied to the validation of models relative to thermally activated building systems [48][49][50], daylighting or HVAC interactions with respect to window or solar gain [51,52], double skin facades or ventilated cavity [53][54][55][56], activities of occupants and their interaction with the building loads [57], etc. It is worth noting that though experimental validations of single mathematical models for the simulation of the energy performance of a specific new building's technology, component or material, can be often easily carried out, the experimental validation of whole BEPS tools is mostly unfeasible.…”

Control concepts of a radiant wall working as thermal energy storage for peak load shifting of a heat pump coupled to a PV array

“…In previous research, a 2D transient finite volume model of a radiant wall was developed and experimentally validated [26]. However, this model only described the behaviour of the radiant wall, which required, among other inputs, the indoor temperature.…”

“…These approach was based in previous experimental research on radiant wall cubicle, which showed good energy savings potential and peak load shifting capability [24,25]. From this experimental research, a numerical model of the radiant wall was validated [26] and then implemented in the current research.…”