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Categoría del artículo: research-article
Publicado en línea: 07 ene 2020
Páginas: 109 - 114
Recibido: 28 jul 2019
Aceptado: 02 oct 2019
DOI: https://doi.org/10.21307/acee-2019-056
Palabras clave
© 2019 Piotr KOPER et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1.
![HRU-WALL-100-25 compact recuperator and its dimensions in millimeters [11]](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/64706f9983f1392090d697be/j_acee-2019-056_fig_001.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA6AP2G7AKOUXAVR44%2F20250907%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20250907T184153Z&X-Amz-Expires=3600&X-Amz-Signature=f00bc33cd5ab5bd96f0d81837bce79ef4982d7721213796d3ab27b683a4ff59f&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
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Calculated averaged air flow volume rate for all fan speeds based on measurements for 0 Pa
| Air supply | 0 Pa |
|---|---|
| first fan speed | 9 m3/h |
| second fan speed | 16 m3/h |
| third fan speed | 28 m3/h |
| Air exhaust | 0 Pa |
| first fan speed | 8 m3/h |
| second fan speed | 14 m3/h |
| third fan speed | 29 m3/h |
Calculated supply efficiency for the tested working conditions
| Working conditions | Supply efficiency |
|---|---|
| third fan speed at balanced pressures | 64% |
| second fan speed at balanced pressures | 68% |
| first fan speed at balanced pressures | 79% |
| third fan speed at a natural pressure difference | 56% |
| second fan speed at a natural pressure difference | 47% |
Calculated exhaust efficiency for the tested working conditions
| Working conditions | Exhaust efficiency |
|---|---|
| third fan speed at balanced pressures | 73% |
| second fan speed at balanced pressures | 83% |
| first fan speed at balanced pressures | 85% |
| third fan speed at a natural pressure difference | 79% |
| second fan speed at a natural pressure difference | 93% |
Calculated averaged air flow volume rate for all fan speeds based on measurements for 7 Pa
| Air supply | 7 Pa |
|---|---|
| first fan speed | 19 m3/h |
| second fan speed | 22 m3/h |
| third fan speed | 36 m3/h |
| Air exhaust | 7 Pa |
| first fan speed | -8 m3/h |
| second fan speed | 6 m3/h |
| third fan speed | 25 m3/h |
Calculated averaged air flow volume rate for all fan speeds based on measurements for 4 Pa
| Air supply | 4 Pa |
|---|---|
| first fan speed | 14 m3/h |
| second fan speed | 20 m3/h |
| third fan speed | 32 m3/h |
| Air exhaust | 4 Pa |
| first fan speed | 2 m3/h |
| second fan speed | 12 m3/h |
| third fan speed | 27 m3/h |