It will if the air is moving sufficiently fast over it, e.g in combination with the fan cooler. Or you can have a bucket with a mix of water, ice and salt, and

It will if the air is moving sufficiently fast over it, e.g in combination with the fan cooler. Or you can have a bucket with a mix of water, ice and salt, and point the fan to blow over it (we did this in army and it actually works fine as a poor man AC alternative).