PROCESS FOR THE RATIONAL EXCHANGE OF HEAT IN COUNTER-CURRENT HEAT EXCHANGES WHERE THE EXCHANGES ARE UNBALANCED

摘要

The coupling of quantities of heat by exchange between two fluids is obtained by dividing the hot fluid into two streams at the entrance of a heat exchanger; the first stream is introduced into the high temperature portion of the exchanger and is then passed to a turbine for reduction in pressure while producing work energy; the second stream being introduced into a turbine for reduction in pressure while producing work energy and is then passed to the heat exchanger at substantially the temperature at which the first stream leaves the heat exchanger. The excess heat which is available in the hot fluid and cannot be stored for reheating the other fluid is thus converted into work energy.