| Title |
A Study on the Effect of Paper Permeance and Moisture Transmission Rate on the Performance of Enthalpy Exchange Elements |
| Authors |
Jeong-Kun Lee ; Nae-Hyun Kim |
| DOI |
https://doi.org/10.6110/KJACR.2019.31.6.279 |
| Keywords |
전열교환소자 ; 종이 ; 투기도 ; 투습도 ; 전열교환효율 Enthalpy exchange element ; Paper ; Air permeance ; Moisture transmission rate ; Enthalpy efficiency |
| Abstract |
Properties, such as air permeance, and moisture transmission rate are known to affect the thermal performance of enthalpy exchange in elements made of paper. Additionally, these properties are highly associated with the paper manufacturing processes including beating, calendering as well as addition of moisture absorbents. In this study, we investigated the effects of paper manufacturing processes and absorbents on air permeance and moisture transmission rate through experiments. The results showed that wet beating was more effective than free beating for improvements in the air permeance. Furthermore, lowering of the calendering speed was found to be beneficial to air permeance. Four enthalpy exchange elements were made using papers having different properties. Test results revealed that the sample made by wet beating reduced the rate of air leakage by 49% as compared to the sample made through free beating. After the amount of impregnated LiCl increased from 10% to 14%, the enthalpy efficiency of the elements increased by 39% in cooling condition and by 15% in heating condition. |