TY - JOUR
TI - ε-NTU-ω RELATIONSHIPS FOR INVERTED ORDER FLOW ARRANGEMENTS OF TWO-PASS CROSSFLOW HEAT EXCHANGERS
AU - Bačlić Branislav
AU - Gvozdenac Dušan D
JN - Thermal Science
PY - 1997
VL - 1
IS - 1
SP - 7
EP - 28
PT - Article
AB - A review of the effectiveness (ε) — number of transfer units (NTU) — capacity rate ration (ω) relationships for eighteen possible inverted order flow arrangements of two-pass crossflow heat exchangers is presented. 
The exact closed form solutions to the arrangements with unmixed-unmixed passes are given for the first time. When one fluid is mixed between the passes, the exact explicit formulas for the mean mixed fluid temperatures 
int he interpasses are given as well. The new relations are particularly helpful for computer-aid-ε-NTU-ω charts for each arrangement are also provided to facilitate hand calculations.