TY - GEN UR - http://lib.ugent.be/catalog/pug01:959146 ID - pug01:959146 LA - eng TI - On modelling moisture buffering when evaluating humidity controlled HVAC systems PY - 2009 PB - International Building Performance Simulation Association (IBPSA) 2009 AU - Steeman, Marijke TW01 002000108977 801002009876 0000-0002-6575-5389 AU - Goethals, Kim 002002070195 802000212426 AU - Laverge, Jelle TW01 002002072926 801002111021 0000-0002-5334-1314 AU - Janssens, Arnold TW01 801001330674 0000-0003-4950-4704 AU - De Paepe, Michel TW03 801001009059 0000-0003-0233-0719 AB - As most building energy simulation programs focus on the thermal response of the building, the relative humidity of the indoor air is often calculated in a simplified way. One of the main shortcomings is the isothermal calculation, which may have a strong influence the predicted relative humidity. In thispaper the use of a simplified effective moisture penetration depth (EMPD) model is compared with a coupled TRNSYS-HAM-model. First, an estimation of the load for humidification and dehumidification is made. Results showed that the EMPD-model underestimates the humidification load because the model disregards non-isothermal effects. Secondly, calculations showed that the indoor and surface relative humidity of an office room with a gypsum cooled ceiling are overestimated using the EMPDmodel. Furthermore, due to not including nonisothermal effects the peak load for dehumidifying the ventilation air may be underestimated using an EMPD-model. ER -Download RIS file
| 00000nam^a2200301^i^4500 | |||
| 001 | 959146 | ||
| 005 | 20161219153548.0 | ||
| 008 | 100531s2009------------------------eng-- | ||
| 024 | a 1854/LU-959146 2 handle | ||
| 040 | a UGent | ||
| 245 | a On modelling moisture buffering when evaluating humidity controlled HVAC systems | ||
| 260 | b International Building Performance Simulation Association (IBPSA) c 2009 | ||
| 520 | a As most building energy simulation programs focus on the thermal response of the building, the relative humidity of the indoor air is often calculated in a simplified way. One of the main shortcomings is the isothermal calculation, which may have a strong influence the predicted relative humidity. In thispaper the use of a simplified effective moisture penetration depth (EMPD) model is compared with a coupled TRNSYS-HAM-model. First, an estimation of the load for humidification and dehumidification is made. Results showed that the EMPD-model underestimates the humidification load because the model disregards non-isothermal effects. Secondly, calculations showed that the indoor and surface relative humidity of an office room with a gypsum cooled ceiling are overestimated using the EMPDmodel. Furthermore, due to not including nonisothermal effects the peak load for dehumidifying the ventilation air may be underestimated using an EMPD-model. | ||
| 598 | a C1 | ||
| 100 | a Steeman, Marijke u TW01 0 002000108977 0 801002009876 0 0000-0002-6575-5389 | ||
| 700 | a Goethals, Kim 0 002002070195 0 802000212426 0 977492052856 | ||
| 700 | a Laverge, Jelle u TW01 0 002002072926 0 801002111021 0 0000-0002-5334-1314 | ||
| 700 | a Janssens, Arnold u TW01 0 801001330674 0 0000-0003-4950-4704 | ||
| 700 | a De Paepe, Michel u TW03 0 801001009059 0 0000-0003-0233-0719 | ||
| 650 | a Technology and Engineering | ||
| 773 | t 11th International Building Performance Simulation Association Conference (Building Simulation 2009) g Building Simulation 2009, Proceedings. 2009. International Building Performance Simulation Association (IBPSA). p.819-826 q :<819 | ||
| 856 | 3 Full Text u https://biblio.ugent.be/publication/959146/file/986488 z [open] y Steeman_BS09_819.pdf | ||
| 920 | a confcontrib | ||
| 852 | x EA b TW01 | ||
| 922 | a UGENT-EA | ||
| 852 | x EA b TW03 | ||
| 922 | a UGENT-EA | ||
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