Thermal Building Simulation and Computer Generation of Nodal Models

TL;DR

This paper discusses the adaptation of nodal analysis for thermal simulation of buildings, focusing on conduction, surface exchanges, and building thermal models, implemented in the CODYRUN program to improve energy efficiency and thermal quality.

Contribution

It introduces a method for creating building-specific thermal models using nodal analysis integrated into the CODYRUN simulation tool.

Findings

Effective modeling of conduction and surface exchanges

Customized thermal models based on building descriptions

Enhanced simulation accuracy for building thermal behavior

Abstract

The designer's preoccupation to reduce the energy needs and get a better thermal quality of ambiances helped in the development of several packages simulating the dynamic behaviour of buildings. This paper shows the adaptation of a method of thermal analysis, the nodal analysis, linked to the case of building's thermal behaviour. We take successively an interest in the case of conduction into a wall, in the coupling with superficial exchanges and finally in the constitution of thermal state models of the building. Big variations existing from one building to another, it's necessary to build the thermal model from the building description. This article shows the chosen method in the case of our thermal simulation program for buildings, CODYRUN