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    performance comparisons

    assuming that the total refrigeration load at the evaporator includes the pump motor input and brine line insulation heat gains, as well as the delivered beneficial cooling, tabulating typical secondary coolant performance values assists in the coolant selection. table 2 ranks the same coolants comparatively, using data from table 1.

    for a given evaporator comfiguration, load and temperature range, select a secondary coolant that gives satisfactory velocities, halocarbon secondary coolant must be pumped at a rate of 2.3 to 3.0 times the rate of water-based secondary coolants for the same temperature range..
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