This maintains the heat transfer between steam and liquid to a maximum. Figure 3 shows a temperature profile when saturated steam is used. The difference with the previous diagram is that there is now a layer of condensate on the heating surface and steam temperature is constant.
As a general rule Owls are monogamous - pairs are comprised of one male and one female, neither one of which has any involvement with other nesting birds. With some Owl species the pair bonds last only for the duration of the breeding season, especially if the species involved is dispersive or migratory.
The barn owl female responds to this call with a screeching noise, giving rise to the alternative name âscreech owlâ for this species. The barn owl often mates for life; in the wild, adults have a life expectancy of about two years, but barn owls who live in specially-made habitats that are safe from predators may live much longer. Once the pair has mated, the female lays an egg every two to three days until she lays five to ten eggs.