ABSTRACT Buildings, new and old, account for 50% of global energy consumption and related emissio... more ABSTRACT Buildings, new and old, account for 50% of global energy consumption and related emissions. This figure rises to more than 70% for the Gulf Region. Estimates of the cut in carbon emissions needed within our lifetime to avert catastrophic climate change range from 60% to 80% of current demand. Buildings thus present both a major impediment to reducing our reliance on the burning of dwindling reserves of fossil fuel and a real opportunity for achieving significant reduction in global carbon emissions. Dynamic Insulation (DI) is an energy-efficient method of supplying pre-tempered, filtered ventilation air to a building through an air-permeable, dynamically insulated envelope or facade. One of the important features of DI is that it effectively decouples ventilation rate from energy use. In theory, it should work well with all buildings, including homes, schools, offices and sports facilities where high occupancy is the norm. Our paper investigates the use of DI in a building facade for zone local insulation and ventilation. The savings in energy and CO 2 reduction are quantified against existing standards in the Gulf Region. The results show that DI can provide tempered fresh air, raise energy efficiency and reduce air conditioning energy demand without compromising Indoor Air Quality (IAQ) or thermal comfort level.
The solution carryover in traditional desiccant regeneration towers is of serious concern in real... more The solution carryover in traditional desiccant regeneration towers is of serious concern in real applications especially when using triethylene glycol (TEG) as a desiccant. In this study, the cellulose rigid media pads are used as the structured packing. The packing arrangements have provided minimum carryover of TEG. A performance study of the simultaneous heat and mass transfer between air and
... Esam Elsarrag is an associate professor at the Technical Studies Institute, Zayed Military Ci... more ... Esam Elsarrag is an associate professor at the Technical Studies Institute, Zayed Military City, Abu Dhabi, United Arab Emirates. ... 0.88 m'L m'a ----- 1.9 < ≤ ShG 6.18 10 6– 1 Ps Pw ----- 0.77 – m'l m'a ----- 0.55 ScG ( )0.333 ReG ( )1.3 × = ...
ABSTRACT Buildings, new and old, account for 50% of global energy consumption and related emissio... more ABSTRACT Buildings, new and old, account for 50% of global energy consumption and related emissions. This figure rises to more than 70% for the Gulf Region. Estimates of the cut in carbon emissions needed within our lifetime to avert catastrophic climate change range from 60% to 80% of current demand. Buildings thus present both a major impediment to reducing our reliance on the burning of dwindling reserves of fossil fuel and a real opportunity for achieving significant reduction in global carbon emissions. Dynamic Insulation (DI) is an energy-efficient method of supplying pre-tempered, filtered ventilation air to a building through an air-permeable, dynamically insulated envelope or facade. One of the important features of DI is that it effectively decouples ventilation rate from energy use. In theory, it should work well with all buildings, including homes, schools, offices and sports facilities where high occupancy is the norm. Our paper investigates the use of DI in a building facade for zone local insulation and ventilation. The savings in energy and CO 2 reduction are quantified against existing standards in the Gulf Region. The results show that DI can provide tempered fresh air, raise energy efficiency and reduce air conditioning energy demand without compromising Indoor Air Quality (IAQ) or thermal comfort level.
The solution carryover in traditional desiccant regeneration towers is of serious concern in real... more The solution carryover in traditional desiccant regeneration towers is of serious concern in real applications especially when using triethylene glycol (TEG) as a desiccant. In this study, the cellulose rigid media pads are used as the structured packing. The packing arrangements have provided minimum carryover of TEG. A performance study of the simultaneous heat and mass transfer between air and
... Esam Elsarrag is an associate professor at the Technical Studies Institute, Zayed Military Ci... more ... Esam Elsarrag is an associate professor at the Technical Studies Institute, Zayed Military City, Abu Dhabi, United Arab Emirates. ... 0.88 m'L m'a ----- 1.9 < ≤ ShG 6.18 10 6– 1 Ps Pw ----- 0.77 – m'l m'a ----- 0.55 ScG ( )0.333 ReG ( )1.3 × = ...
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