You don't exhaust hot tent air because you don't want to show air being exhausted (afraid persons seeing a vent will recognize a grow room) and/or are concerned about putting out odor? Even if in a state that's bad for growers, you should be able to put in the window or otherwise install a common portable AC window, drier-type or other temporary vent. Or get stealthy, such as put in just the shell, an empty window AC unit and pipe your exhaust out through that. Exhaust air can simply be passed through an activated charcoal filter to get rid of odors.
I presume others here on AFN can from experience advise you about stealthy tent cooling/ventilation.