An experimental and theoretical study has been conducted on the importance of two-dimensional heat flow within insulated wood frame walls and the modeling techniques necessary for accurate simulation. Both steady and transient heat flows are considered. A two-dimensional finite difference model provides accurate detailed results that agree with measurements when appropriate thermophysical property values are used. One-dimensional models cannot completely describe the complex transient heat transfer in wood frame walls, however, the total surface heat transfer can be predicted using a framing correction to combine one-dimensional results between the framing and through the framing.
Bibliographical noteFunding Information:
This study was supportedb y the Engineering ResearchIn stituteI,o wa StateU niversity. The authorsth ankD r. Paul Petersonp, rogram director, for his support, and Mr. Brian A'Hearnf or the initial modeld evelopment.