Mon Nov 12 07:40:34 EST 2007
Input file [ heatxchngr.txt ]
#----------------------Input---------------------#
mdothot		1.0		(kg / s) 	
Cphot		2200		(J / kg / K)
Thotin		100		(deg C)
Thotout		50		(deg C) 	
mdotcool	2.0		(kg / s) 	
Cpcool		4200		(J / kg / K)
Tcoolin		25		(deg C) 	
Tcoolout	38		(deg C) 	
Type		2		(1 = parallel; 2 = counterflow)
 
#-----------------Output--------------------#
Qhot= -110000 Watts
Qcool= 109200 Watts
Qhot+Qcool must = zero or following calcs are wrong
 
Counter-flow x-chngr, Thotout must be > Tcoolin
Overall U is the overall heat transfer coefficient of the design (W/m^2/C).
A is the effective heat transfer area of the design (m^2).
UA and Qcheck shown below is based on coolside flow.
 
LMTD =                          40.74          C
Overall U * Area =            2680.59    Watts/C
Qcheck =                    109200.00      Watts
#.......................End of File..............#