| Autor: |
Bunker, Aditi, Lundgren Kownacki, Karin, Sarker, Sudipa, Bari, Rahmatul, Sarker, Malabika, Buonocore, Jonathan J., Geldsetzer, Pascal, Revstedt, Johan, Bärnighausen, Till |
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| Zdroj: |
NPJ Climate Action; 11/2/2024, Vol. 3 Issue 1, p1-9, 9p |
| Abstrakt: |
Constructed with used plastic bottles, the eco-cooler has been widely adopted in resource-poor communities in Bangladesh and other countries. We tested the eco-cooler under controlled conditions using a scientific wind tunnel in a climatic chamber. In our tests, we used seven eco-cooler designs in 27 climate conditions typical of Bangladesh (temperatures of 40 °C, 35 °C, and 30 °C; humidity levels of 70%, 60%, and 40%; and wind speeds of 4.0 m s−1, 2.0 m s−1, and 0.2 m s−1) in 92 experiments (N = 7686 measurements in 87 short experiments and N = 23,428 measurements in five long experiments). We found no significant temperature reductions with eco-cooler use, except at low wind speeds, where temperature reduced by up to 0.2 °C. In theoretical calculations extending our empirical findings, the greatest temperature drop was 0.85 °C at 4.0 m s−1 with a 40 °C static air inflow temperature. However, this temperature drop did not extend beyond the nozzles of the bottles in the eco-cooler. The eco-cooler did not work effectively as an indoor air cooler. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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