Numerical simulation of radiative heat transfer in indoor environments on programmable graphics hardware

Kramer, Stephan C.; Gritzki, Ralf; Perschk, Alf; Rösler, Markus; Felsmann, Clemens

doi:10.1016/j.ijthermalsci.2015.02.008

Cited by 8 publications

(8 citation statements)

References 35 publications

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“…However, using more complex basis functions or support for non‐diffuse transport increases the computational overhead. Various optimizations have been developed that improve the computational complexity and memory requirements, such as adaptive meshing [LTG92], hierarchical [HS92] and adaptive subdivision schemes [DB95], progressive refinement [NFKP95], efficient support for dynamic scenes [BBS95,FYT95,ÁDE96, BMA03, CzSG08], and accelerated view factor computation on the GPU [TYSK06,KGP*15]. While the latter two build upon rasterization‐based visibility testing on the GPU to compute direct view (or form) factors between two elements, we compute complete multi‐bounce transport between any two elements via photon tracing , inspired by the Gebhart method [Geb61].…”

Section: Related Workmentioning

confidence: 99%

Precomputed Radiative Heat Transport for Efficient Thermal Simulation

Freude,

Hahn,

Rist

et al. 2023

Computer Graphics Forum

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Architectural design and urban planning are complex design tasks. Predicting the thermal impact of design choices at interactive rates enhances the ability of designers to improve energy efficiency and avoid problematic heat islands while maintaining design quality. We show how to use and adapt methods from computer graphics to efficiently simulate heat transfer via thermal radiation, thereby improving user guidance in the early design phase of large‐scale construction projects and helping to increase energy efficiency and outdoor comfort. Our method combines a hardware‐accelerated photon tracing approach with a carefully selected finite element discretization, inspired by precomputed radiance transfer. This combination allows us to precompute a radiative transport operator, which we then use to rapidly solve either steady‐state or transient heat transport throughout the entire scene. Our formulation integrates time‐dependent solar irradiation data without requiring changes in the transport operator, allowing us to quickly analyze many different scenarios such as common weather patterns, monthly or yearly averages, or transient simulations spanning multiple days or weeks. We show how our approach can be used for interactive design workflows such as city planning via fast feedback in the early design phase.

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Section: Related Workmentioning

confidence: 99%

Precomputed Radiative Heat Transport for Efficient Thermal Simulation

Freude,

Hahn,

Rist

et al. 2023

Computer Graphics Forum

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“…(1)) seem to be the only way to overcome this problem. An interesting method for the numerical evaluation of view factors has been presented only recently [29]. However, for common geometries of internal rooms, there is a sufficient number of formulae, graphs or tables to easily determine the corresponding view factors.…”

Section: Application To Enclosurementioning

confidence: 99%

General Model of Radiative and Convective Heat Transfer in Buildings: Part I: Algebraic Model of Radiative Heat Transfer

Ficker

2019

Acta Polytech

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Radiative heat transfer is the most effective mechanism of energy transport inside buildings. One of the methods capable of computing the radiative heat transport is based on the system of algebraic equations. The algebraic method has been initially developed by mechanical engineers for a wide range of thermal engineering problems. The first part of the present serial paper describes the basic features of the algebraic model and illustrates its applicability in the field of building physics. The computations of radiative heat transfer both in building enclosures and also in open building envelopes are discussed and their differences explained. The present paper serves as a preparation stage for the development of a more general model evaluating heat losses of buildings. The general model comprises both the radiative and convective heat transfers and is presented in the second part of this serial contribution.Keywords: Radiative heat transfer, view factor, radiosity, room envelope, radiative heat in interiors, heat loss.

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“…In modeling, numerical values of parameters, are presented by graphic dependencies [16] which are used in the analysis of the system [17,18].…”

Section: Scientific and Applied Principles Of Constructing Modelsmentioning

confidence: 99%

Information Technology of Process Modeling in the Multiparameter Systems

Ljaskovska

Martyn

Malets

et al. 2018

2018 IEEE Second International Conference on Data Stream Mining &Amp; Processing (DSMP)

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Information graphics technologies of designing models of the processes of multiparameter technical systems are argued and developed in order to increase the effectiveness of determining the influence of many operating parameters on their dynamics. The requirements for model designs are formulated on the basis of the formed numbers of different measurements of multidimensional spaces. Its implementation is proposed by a complex combination of the mathematical description of the parameters interconnection and the use of rational geometry. The features of the implementation of models are shown with the number of possible assumptions reduced.

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Numerical simulation of radiative heat transfer in indoor environments on programmable graphics hardware

Cited by 8 publications

References 35 publications

Precomputed Radiative Heat Transport for Efficient Thermal Simulation

Precomputed Radiative Heat Transport for Efficient Thermal Simulation

General Model of Radiative and Convective Heat Transfer in Buildings: Part I: Algebraic Model of Radiative Heat Transfer

Information Technology of Process Modeling in the Multiparameter Systems

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