Abstract
In this paper, the thermal response of a homogenous slab
to both step and sinusoidal excitations of temperature at
one boundary is examined. The distribution of nodes for
the purposes of heat balance thermal modelling is
discussed. Errors in the heat flux at the external
boundary are examined when even and uneven gridding
approaches are applied. A denser gridding close to the
surface is adopted due to the fact that the curvature of
the temperature gradient is greatest near the surface
during the early stages of transient heat transfer.
Example calculations demonstrate the potential of uneven
gridding to obtain a rational compromise between accuracy
and computational effort. Rational uneven gridding
results in a more accurate solution with a smaller number
of thermal nodes compared with even gridding.
| Original language | English |
|---|---|
| Title of host publication | Healthy buildings 2000 : proceedings |
| Subtitle of host publication | Vol. 2, Design and operation of HVAC systems |
| Pages | 605-610 |
| Publication status | Published - 2000 |
| MoE publication type | A4 Article in a conference publication |
| Event | Healthy Buildings 2000 - Espoo, Finland Duration: 6 Aug 2000 → 10 Aug 2000 |
Conference
| Conference | Healthy Buildings 2000 |
|---|---|
| Country/Territory | Finland |
| City | Espoo |
| Period | 6/08/00 → 10/08/00 |