4-5.An indoor tennis facility finds that it has excessive electrical charges for air conditioning thecourts to a temperature that is comfortable for its players (68 F or 20 C). Overhead fans willincrease the average air velocity at court level from zero to 100 fpm (0.50 m/s). What new ther-mostat setting will give approximately the same comfort as before fan operation? Assume thatthe mean radiant temperature is the same as the air temperature.

Fig: 1