From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 551/CH14/EX14.7/7.sce | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100755 551/CH14/EX14.7/7.sce (limited to '551/CH14/EX14.7') diff --git a/551/CH14/EX14.7/7.sce b/551/CH14/EX14.7/7.sce new file mode 100755 index 000000000..cb7ab1852 --- /dev/null +++ b/551/CH14/EX14.7/7.sce @@ -0,0 +1,33 @@ +clc +cp1=1.25; //kJ/kg 0C +cp2=2.93; //kJ/kg 0C +L=232; //kJ/kg +T1=-3; //0C +T2=-8; //0C +T3=25; //0C + +Q1=cp2*(T3-T1) + L + cp1*(T1-T2); //Heat removed in 8 hours from each kg of fish + +Q=Q1*20*1000/8; //Heat removed by the plant /min + +disp("(i) Capacity of the refrigerating plant =") +capacity=Q/14000; //tonnes +disp(capacity) +disp("tonnes") + +disp("(ii) Carnot cycle C.O.P. between this temperature range.") +T1=298; //K +T2=265; //K + +COP=T2/(T1-T2); +disp("COP of reversed carnot cycle =") +disp(COP) + + +disp("(iii) Power required") +COP_actual=1/3*COP; + +W=Q/COP_actual/3600; //kJ/s +disp("Power =") +disp(W) +disp("kW") -- cgit