ﻣﺑـــــــﺎﺩﺉ ﻭﺗﻌﺭﻳﻔــــــــــﺎﺕ ﺍﻟﺑــــــﺎﺏ ﺍﻷﻭﻝ CONCEPTS amp DEFINTTIONS ﺗﻛﻳﻳﻑ ﺍﻟﻬﻭﺍء 1 1 ﺍﻟﺗﻬﻭﻳﺔ 2 1 Importance of air ﺃﻫﻣﻳﺔ ﺍﻟﻬﻭﺍء 3 1 Human comfort ﺭﺍﺣﺔ ﺍﻹﻧﺳﺎﻥ 4 1 ﺍﻟﺑﺎﺏ ﺍﻟﺧﺎﻣﺱ ﺣﺳﺎﺑﺎﺕ ﺣﻣﻝ ﺍﻟﺗﺑﺭﻳﺩ COOLING LOAD CALCULAIONS ﻣﻘﺩﻣﺔ 1 5 ﺍﻟﻌﻭﺍﻣﻝ ﺍﻟﻣﺅﺛﺭﺓ ﻋﻠﻰ ﺍﻛﺗﺳﺎﺏ ﺍﻟﺣﺭﺍﺭﺓ 2 5 ﺍﻟﺣﺭﺍﺭﺓ ﺍﻟﻣﻛﺗﺳﺑﺔ 3 5 Heat transmission through building