14 0 Math Review 14 4 Interpolation Interpolation

14. 0 Math Review 14. 4 Interpolation

Interpolation Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

Interpolation Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

Interpolation 300 CFM = drop in w. g. ? Step 1: CFM Total Difference : 400 – 200 = 200 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

Interpolation 300 CFM = drop in w. g. ? Step 2: CFM Ratio Factor : 400 – 300 = 100 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

300 CFM = drop in w. g. ? Interpolation Step 1: CFM Total Difference : 400 – 200 = 200 Step 2: CFM Ratio Factor : 400 – 300 = 100 Air Resistance Across The Coil Step 3: CFM Ratio: 100 ÷ 200 = 0. 5 Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

300 CFM = drop in w. g. ? Interpolation Step 3: CFM Ratio: 100 ÷ 200 = 0. 5 Step 4: w. g. total difference: . 09 –. 04 = 0. 05 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

300 CFM = drop in w. g. ? Interpolation Step 3: CFM Ratio: 100 ÷ 200 = 0. 5 Step 4: w. g. total difference: . 09 –. 04 = 0. 05 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

300 CFM = drop in w. g. ? Interpolation Step 5: CFM Ratio is multiplied by the w. g. total difference: 0. 5 x 0. 05 = 0. 025 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42 Step 2: CFM Ratio Factor : 400 – 300 = 100

300 CFM = drop in w. g. ? Interpolation Step 5: 0. 5 x 0. 05 = 0. 025 Step 6: Final Answer: 0. 09 - 0. 025 = 0. 065 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume 300 XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42 0. 065

Interpolation 375 CFM = w. g. ? Step 1: CFM Total Difference: 400 – 200 = 200 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

375 CFM = w. g. ? Interpolation Step 1: CFM Total Difference: 400 – 200 = 200 Step 2: CFM Ratio Factor: 400 – 375 = 25 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

375 CFM = w. g. ? Interpolation Step 2: CFM Ratio Factor: 400 – 375 = 25 Step 3: CFM Ratio: 25 ÷ 200 = 0. 125 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42 Step 1: CFM Total Difference: 400 – 200 = 200

375 CFM = w. g. ? Interpolation Step 3 CFM Ratio: 25 ÷ 200 = 0. 125 Step 4 w. g. Total Difference: . 09 -. 04 = 0. 05 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

375 CFM = w. g. ? Interpolation Step 5: CFM Ratio is multiplied by the w. g. total difference: 0. 125 x 0. 05 = 0. 00625 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

375 CFM = w. g. ? Interpolation Step 5: 0. 125 x 0. 05 = 0. 00625 Step 6: . 09 -. 00625 =. 08375 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume 375 CFM XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42 . 08375

Interpolation If wet coil w. g. is 0. 188 what is the CFM? Step 1: w. g. Total Difference: 0. 29 – 0. 17 =. 12 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

w. g. 0. 188 - CFM? Interpolation Step 1: w. g. Total Difference: 0. 29 – 0. 17 =. 12 Step 2: w. g. Ratio Factor: 0. 29 – 0. 188 = 0. 102 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

w. g. 0. 188 - CFM? Interpolation Step 2: w. g. Ratio Factor: 0. 29 – 0. 188 = 0. 102 Step 3: w. g. Ratio: 0. 102 ÷ 0. 12 = 0. 85 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42 Step 1: w. g. Total Difference: 0. 29 – 0. 17 =. 12

w. g. 0. 188 - CFM? Interpolation Step 3: w. g Ratio: 0. 102 ÷ 0. 12 = 0. 85 Step 4: CFM Total Difference: 800 – 600 = 200 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

w. g. 0. 188 - CFM? Interpolation Step 5: w. g. Ratio is multiplied by the CFM total difference: 0. 85 x 200 = 170 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42

w. g. 0. 188 - CFM? Interpolation Step 5: 0. 85 x 200 = 170 Step 6: 800 – 170 = 630 Air Resistance Across The Coil Air Dry Coil in. Wet Coil Model w. g. in. w. g. Number Volume XYZ 630 CFM 200 400 600 800 1000 0. 03 0. 08 0. 14 0. 22 0. 31 0. 04 0. 09 0. 17 0. 29 0. 42 0. 188

Interpolation Need to be freeze protected to - 30 F 34 Freezing point °F -20 -47 -22 -6 -26 -60 -13 -27 -42 -23 -28 -34 -40 Specific % of water in Gravity @60°F solution Glycerine 1. 145 50 Glycerine 1. 171 40 Glycerine 1. 197 30 Propylene Glycol 1. 034 60 Propylene Glycol 1. 041 50 Propylene Glycol 1. 045 40 Diethylene Glycol 1. 078 50 Diethylene Glycol 1. 081 45 Diethylene Glycol 1. 086 40 Ethylene glycol 1. 056 61 Ethylene glycol 1. 063 56 Ethylene glycol 1. 069 51 Ethylene glycol 1. 073 47 Scale for Hygrometer 1. 00 to 1. 12 Antifreeze

Specific Gravity Archimedes of Syracuse 287 – 212 BC

Propylene Glycol Hydrometer : used to measure Specific Gravity

Interpolation Need to be freeze protected to - 30 F 34 Freezing point °F -20 -47 -22 -6 -26 -60 -13 -27 -42 -23 -28 -34 -40 Specific % of water in Gravity @60°F solution Glycerine 1. 145 50 Glycerine 1. 171 40 Glycerine 1. 197 30 Propylene Glycol 1. 034 60 Propylene Glycol 1. 041 50 Propylene Glycol 1. 045 40 Diethylene Glycol 1. 078 50 Diethylene Glycol 1. 081 45 Diethylene Glycol 1. 086 40 Ethylene glycol 1. 056 61 Ethylene glycol 1. 063 56 Ethylene glycol 1. 069 51 Ethylene glycol 1. 073 47 Scale for Hygrometer 1. 00 to 1. 12 Antifreeze . 004