Validation of a lumped RC model for thermal simulation of a double skin natural and mechanical ventilated test cell

Panão, Marta J.N. Oliveira; Santos, Carolina A.P.; Mateus, Nuno M.; Graça, Guilherme Carrilho da

doi:10.1016/j.enbuild.2016.03.054

Cited by 41 publications

(22 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this regard, computer-based analyses are well recognized to support the understanding of complex systems (such as NZEBs) by providing feedbacks on the performance of all the investigated innovative design scenarios [12]. Based on high order RC networks, several new dynamic simulation models have been developed for analyzing, as an example, the impact on the building energy demand of glazed/opaque surfaces and internal solar radiation [50], the thermal behavior of multi glazing façades [51], the thermo-physical behavior of a Phase Change Material (PCM) layer in combination with transparent and opaque materials [52], the performance of Building Integrated Solar Thermal and Photovoltaic systems (BIST-BIPVT) [53]. New BEPS computer-based models are also required to be flexible and suitable for the calculation of household actions and to effectively account model occupants' behavior [54].…”

Section: Innovative Capabilities Of Detectmentioning

confidence: 99%

Code-to-Code Validation and Application of a Dynamic Simulation Tool for the Building Energy Performance Analysis

Buonomano

2016

Energies

View full text Add to dashboard Cite

Abstract:In this paper details about the results of a code-to-code validation procedure of an in-house developed building simulation model, called DETECt, are reported. The tool was developed for research purposes in order to carry out dynamic building energy performance and parametric analyses by taking into account new building envelope integrated technologies, novel construction materials and innovative energy saving strategies. The reliability and accuracy of DETECt was appropriately tested by means of the standard BESTEST validation procedure. In the paper, details of this validation process are accurately described. A good agreement between the obtained results and all the reference data of the BESTEST qualification cases is achieved. In particular, the obtained results vs. standard BESTEST output are always within the provided ranges of confidence. In addition, several test cases output obtained by DETECt (e.g., dynamic profiles of indoor air and building surfaces temperature and heat fluxes and spatial trends of temperature across walls) are provided.

show abstract

Section: Innovative Capabilities Of Detectmentioning

confidence: 99%

Code-to-Code Validation and Application of a Dynamic Simulation Tool for the Building Energy Performance Analysis

Buonomano

2016

Energies

View full text Add to dashboard Cite

show abstract

“…The shape and variability of presented waveforms is the same. Maximum and minimum hourly values of thermal power differed from 116 W (7-th hour) to 1466 W (11) and from 45 W (17) to 223 W (12) in the case 600 and 900, respectively. Lower discrepancies between individual methods occurred for the heavy building case.…”

Section: Bestest Testsmentioning

confidence: 93%

“…Because of its simplicity and low computational demand the lumped capacitance method was commonly applied in researches [8][9][10][11][12][13] and standards, as VDI 6007 [14][15] or PN-EN ISO 13790 [16]. It is based on the thermal-electrical analogy [17][18].…”

Section: Introductionmentioning

confidence: 99%

Thermal - electrical analogy in dynamic simulations of buildings: Comparison of four numerical solution methods

Michalak

2020

Journal of Mechanical and Energy Engineering

View full text Add to dashboard Cite

The lumped capacitance method is widely used in dynamic modelling of buildings. Models differ in complexity, solution methods and ability to simulate transient behaviour of described objects. The paper presents a mathematical description of a simple 1R1C thermal network model of a building zone. Four numerical methods were applied to solve differential equation describing its dynamics. For validation purposes two test cases (600 and 900) from the BESTEST procedure were used. In both cases detailed results were given. Better ability of the simulation model to reproduce transient behaviour of the modelled buildings was noticed in case of the lightweight object (case 600). Annual heating and cooling demand was within the reference range for heavyweight one (case 900). The kind of the computation method had no significant effect on simulation results.

show abstract

“…Further, high energy consumption is related to the poor insulation of building skins, especially that of windows. Various studies have been conducted to investigate potential approaches for improving the thermal performance of windows, including the use of double skins [6][7][8][9][10][11][12][13][14][15], phase change materials (PCM) [16][17][18][19][20][21][22], window blinds [23][24][25][26][27][28][29][30][31][32], awnings [33][34][35], and light shelves [36][37][38][39][40][41]. Although several of these apparatuses may be efficiently used to reduce the energy consumption of the buildings, they often have high installation costs or are difficult to be 2 of 14 applied to the existing buildings.…”

Section: Introductionmentioning

confidence: 99%

Development of Window-Mounted Air Cap Roller Module

Lee

Seo

2018

Energies

View full text Add to dashboard Cite

While previous research has shown the use of attachable air-caps on windows to efficiently reduce a building’s energy consumption, the air-caps considered had to be attached to the entire window’s surface, thus limiting the occupants’ view and creating the inconvenience of needing to detach and attach the air-caps. In this study, a window-mounted air-cap roller module using Velcro tape that may be easily attached, detached, and rolled up or down was developed and performance tested in a full-scale test bed. It was found that as the area of the air-caps attached on a window increased, the required indoor lighting energy increased. However, the window insulation improved, thus reducing the cooling and heating energy needed. Attaching the air-caps to the entire window surface effectively reduced the building’s energy consumption, but views through the window may be disturbed. Thus, the developed window-mounted air-caps enable an occupant to reduce the building energy consumption and maintain their view according to their need. The findings of this study may contribute to a reduction in building energy consumption without sacrificing a pleasant indoor environment. Further studies may be needed to verify their efficacy under varying indoor and outdoor conditions.

show abstract

Validation of a lumped RC model for thermal simulation of a double skin natural and mechanical ventilated test cell

Cited by 41 publications

References 33 publications

Code-to-Code Validation and Application of a Dynamic Simulation Tool for the Building Energy Performance Analysis

Code-to-Code Validation and Application of a Dynamic Simulation Tool for the Building Energy Performance Analysis

Thermal - electrical analogy in dynamic simulations of buildings: Comparison of four numerical solution methods

Development of Window-Mounted Air Cap Roller Module

Contact Info

Product

Resources

About