From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3685/CH15/EX15.12/Ex15_12.sce | 29 +++++++++++++++++++++++++++++ 3685/CH15/EX15.12/Ex15_12.txt | 8 ++++++++ 2 files changed, 37 insertions(+) create mode 100644 3685/CH15/EX15.12/Ex15_12.sce create mode 100644 3685/CH15/EX15.12/Ex15_12.txt (limited to '3685/CH15/EX15.12') diff --git a/3685/CH15/EX15.12/Ex15_12.sce b/3685/CH15/EX15.12/Ex15_12.sce new file mode 100644 index 000000000..237e297a9 --- /dev/null +++ b/3685/CH15/EX15.12/Ex15_12.sce @@ -0,0 +1,29 @@ + +clc +// Given that +c = 75 // Capacity of classroom in no of persons +DBT1 = 35 // Outdoor Dry bulb temperature in degree celsius +RH1 = 70 // Outdoor relative humidity in percentage +DBT2 = 20 // Indoor Dry bulb temperature in degree celsius +RH1 = 60 // Indoor relative humidity in percentage +DPT = 10 // Cooling coil dew point temperature in degree celsius +x =0.25 // Bypass factor +f = 300 // Air flow rate in cmm +printf("\n Example 15.12 \n") +// From the psychrometric chart +W1 = 0.0246 // In kg vap./kg d.a. +h1 = 98 // In kJ/kg +v1 = .907 // In m^3/kg d.a. +h3 = 42 // In kJ/kg +W3 = 0.0088 // In kg moisture/kg d.a. +h2 = 34 // In kJ/kg +hs = 30 // In kJ/kg +t2 = 12 // In degree celsius +G = f/v1 +C = G*(h1-h2)/(60*3.5) +X = (h2-hs)/(h1-hs) +C_ = G*(h3-h2)/60 +t4 = (DBT2-x*t2)/(1-x) +C_H = G*(W1-W3) +printf("\n Capacity of cooling coil is %f tonnes,\n Bypass factor of cooling coil is %f,\n Capacity of heating coil is %f kW,\n Surface temperature of heating coil is %f degree celsius,\n Mass of water vapor removed is %f kg/min ",C,X,C_,t4,C_H) +//Answers varies due to round off error diff --git a/3685/CH15/EX15.12/Ex15_12.txt b/3685/CH15/EX15.12/Ex15_12.txt new file mode 100644 index 000000000..0af497396 --- /dev/null +++ b/3685/CH15/EX15.12/Ex15_12.txt @@ -0,0 +1,8 @@ + + Example 15.12 + + Capacity of cooling coil is 100.803276 tonnes, + Bypass factor of cooling coil is 0.058824, + Capacity of heating coil is 44.101433 kW, + Surface temperature of heating coil is 22.666667 degree celsius, + Mass of water vapor removed is 5.226020 kg/min \ No newline at end of file -- cgit