✦ LIBER ✦
Non-ideal regenerator performance — the effect of void volume fluid heat capacity
✍ Scribed by D.E. Daney; R. Radebaugh
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 261 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
The performance of thermal regenerators is analysed for a range of parameters of particular interest for low temperature refrigeration. Using a time-dependeng one-dimensional, incompressible flow, numerical model we show that the void volume fluid heat capacity can strongly influence regenerator behaviour. Inclusion of the void volume term gives significant improvements in the predicted effectiveness when the void volume and matrix heat capacities are of the same order. For some regimes of low thermal loads increasing the matrix heat capacity may actually reduce the effectiveness.