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{"sheet":"size","index":0,"n_rows":29,"n_cols":42,"rows_kept":29,"cut":false,"hidden":false,"merged":[[11,12,11,17],[11,6,12,6],[2,1,2,7],[3,1,3,7],[4,1,4,7],[9,1,9,5],[9,7,9,11],[5,2,5,4],[5,8,5,9],[8,1,8,5]],"flags":["formulas_cached_only"]}
[{"$nulls":28},"EGC / EG 15 1/2 x 1in deep Egg Crate Return "]
[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W",null,null," "," "]
[null,"Enter Duct Width in inches =",{"$nulls":6},20,"Inches",{"$nulls":11},"Area ( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",1,null,null," - ",null," "]
[null,"Enter Duct Height in inches =",{"$nulls":6},20,"Inches",{"$nulls":11},2.7777777777777777,2.5733506944444446,0.75,{"$nulls":8},"\"",null,"Based on Titus lab data egc50x50 sound"]
[null,"Enter Air Flow (must be greater than 0) =",{"$nulls":6},2000,"CFM",{"$nulls":22}," ",null,"Modified 6/6/06 to agree with latest Titus data"]
[null,"Series =","EGC15",{"$nulls":4},"Tag =","Room 23"]
[{"$nulls":26},"Pressure Constants",null,null,null," "]
[null,"EGC15 Return Grille",{"$nulls":25},"m","b"," ",null," ",null,"Titus new catalog:  @ 1400 fpm   Ps= 0.294   Pv=.122 ",{"$nulls":4},"Pt= ",0.416]
[null,"Tag : Room 23",{"$nulls":24},"0 Degrees",0,3.4098360655737703,{"$nulls":9},"Pt/Pv",3.4098360655737703]
[null,"IP Data",{"$nulls":5},"Metric Data",{"$nulls":24}," "]
[null,"Nom","Duct ","Neck","Air"," ",null,"Nom","Duct ","Neck","Air"," ",{"$nulls":19}," ","From EGC sound regression.Modified as shown"]
[null,"Duct","Area","Vel","Flow","Ps","Nc","Duct","Area","Vel","Flow","Ps","Octave Band, dB",{"$nulls":20},"2","3","4","5","6","7","NC"]
[null,"in","ft²","FPM","CFM","\"WG",null,"mm","m²","m/s","L/s","Pa",2,3,4,5,6,7,{"$nulls":8},"Sound",{"$nulls":5},"M(An)",9,9,9,9,9,9,9]
[null,"20 x 20",2.7777777777777777,777.196829144881,2000,-0.09074955394113106,26.75777993145406,"508 x 508",0.258064,3.9481598920559957,943.8948,-22.596638931341634,41.78114552480847,35.34666413601486,36.45461771469869,36.7073966071248,37.719033533104245,32.53300569944572,{"$nulls":10},"B","CVn","CAn",null,"M(Vn)",48.32559400262715,63.49076575168263,56.83291432745321,61.769299007535025,76.75923951561742,111.41937020452976,76.42144057971625]
[{"$nulls":26},"0 deg",null,-197.8352554430108,76.42144057971625,9,null,"New B",-101.59997378344744,-151.86985453757805,-131.51717489014055,-145.53316904249021,-187.85042014412969,-293.2226308937761,-197.8352554430108," "," "]
[{"$nulls":28}," ",null,null," "]
[{"$nulls":32},"Old B",-97.59997378344744,-147.86985453757805,-127.51717489014054,-141.53316904249021,-183.85042014412969,-289.2226308937761,-193.8352554430108]
[{"$nulls":26}," "]
[{"$nulls":32},"Correction",-4,-4,-4,-4,-4,-4,-4]
[]
[{"$nulls":32},"Corrected 6/6/06 to attempt to agree with newest Titus data",{"$nulls":6}," "]
[]
[{"$nulls":26}," ","Band","Const","Slope 1","Slope 2",null,"Note: Titus catalog assume area constant of 6!!!   (Which cannot be!) "]
[{"$nulls":27},2,-101.59997378344744,48.32559400262715,9,null,"So I used a 9 for an area constant",{"$nulls":6}," "]
[{"$nulls":27},3,-151.86985453757805,63.49076575168263,9]
[{"$nulls":27},4,-131.51717489014055,56.83291432745321,9,null,"Note this data assumes no OBD"]
[{"$nulls":27},5,-145.53316904249021,61.769299007535025,9]
[{"$nulls":27},6,-187.85042014412969,76.75923951561742,9]
[{"$nulls":27},7,-293.2226308937761,111.41937020452976,9]