In order to arrive at a simple design procedure to handle heat transfer in a room, certain fairly complicated expressions for radiant exchange are needed, and moreover the further operations that have to be performed on them are involved and lead to non-exact relations. The corresponding operations for radiant exchange between patches which form part of a spherical cavity are elementary and exact,and lead to results which are quite close to those for a cubic enclosure. Thus a consideration of radiant exchange in a sphere illustrates the principles of radiant exchange in a room, elegantly and with little of its complexity.
An idealised model for room radiant exchange.
![](https://www.aivc.org/sites/default/files/default_images/default_image_5.png)
Year:
1990
Bibliographic info:
UK, Building and Environment, Vol 25, No 4, 1990, pp 375-378, 4 refs.