Climatic Design Process Design aids Forward analysis stage Plan development stage Element design stage Models and analogues

The design process Analysissynthesis evaluation Forward analysis Data (collected, shorted, processed) necessary for formal solution Design tool (to produce formal solutions) Checking tool (to evaluate or to assess) Design Process

The tasks of analysis Provide Design Solution Physiological Social Functional Comapatibility and adaptibility Information (climatic) transfer Information must be related and comprehensive form Information should be presented in a specific form, Data i.e. raw materials organized in a hierarchical order Performance specification Design decision Design Process

Analysis stage C.Mahoney tables (a series of tables designed by Mahoney) Design decision for different climatic data!! (H-D, W-H, C) Table 1:(Climatic data) Temperature R.H (Humidity groups) Location Rain(monthly and annual) Wind direction Table 2: (Diagnosis) Comfort level Relationship between temperature and humidity Thermal stress (C,O,H) Table 3: (Recommended specification) Layout Spacing Air movement Opening Walls Roofs Outdoor sleeping Rain protection Design Process

TABLE- 1 (Location data) Location Baghdad, Iraq Longitude 44  24’E Latitude 33  20’N Altitude34m Air temperature: C  JFMAMJJASONDHighAMT Monthly mean max Monthly mean min Monthly mean range LowAMR Climatic data Design Process

Mahoney table 1 :Second part Relative humidity (RH): % JFMAMJJOSOND Monthly meanmax.a.m Monthly mean min. p.m Average Humidity group Average RH: 1below 30% % % 4Above 70% Rain and wind Rainfall,mm Total Wind.prevailingNW Wind.secondarySE NNNNN&WNNNNSE JFMAMJJASOND

Mahoney Table 2 (Diagnosis) AMT over 20 o CAMT o CAMT below 15 o C Comfort limitDayNightDayNightDayNight Humidity group JFMAMJJASOND Monthly mean max AMT Day comfrt:upper Lower Monthly mean min Night omfort: upper Lower17 Thermal stress: dayCCCOHHHHHHOC nightCCCCOOHOOCCC H (Hot): if mean is above limit O (Comfort): If mean is within limit C (Cold): if mean is below the limit Diagnosis (  C)

Applicable when IndicatorThermal stressRain fallHumidity group Monthly mean range Meaning DayNight Air movement essential H1 H4 H2,3Less than 10 Air movement desirable H2 O4 Rain protection necessary H3 Over 200mm Thermal capacity necessary A1 1,2,3More than 10 Outdoor sleeping desirable A2 H1,2 HO More than 10 Protection from cold A3 C Indicators JFMAMJJASOND Total Humidity group HumidH1 0 H2 0 H3 0 AridA1 A2 A3 Mahoney table: part 2 (Indicators) Checklist for climatic indicators (H=Humid, A= Arid) Monthly mean range >10degC Annual rainfall 150mm   

Specifications: Layout, Spacing, Air movement, Opening, Walls, Roofs, Outdoor sleeping, Rain protection Indicators from table 3 H1H2H3A1A2A Layout 0-101Orientation north and south (long axis east-west) 11,  2Compact courtyard planning Spacing 11,123Open spacing for breeze penetration 2, 104As 3, but protection from hot and cold wind 0,15Compact layout of estates Specifications

Airmovement Rooms single banked, permanent provision for air movement 1,  7Rooms double banked, temporary provision for air movement ,18No air movement required Opening 0,109Large openings, 40-80% 11,120,1  10Very small openings, 10-20% Any other condition11Medium openings, 20-40% Walls 0-212Light walls short time lags 3-12  13Heavy internal and external walls Roofs Indicators from table 3 H1H2H3A1A2A

0-514Light, insulated roofs 6-12  15Heavy roofs, over 8h time lags Outdoor sleeping 2-12  16Space for outdoor sleeping required Protection from heavy rain necessary Rain protection Indicators from table 3 H1H2H3A1A2A Roofs