Thermal devices

Thermostat[edit | edit source]

A device that maintains a constant selectable temperature inside a certain space . In practice, it can take the form of a closed volume with double walls that are filled with insulation. Inside this volume, a constant temperature is maintained by the regulation.

Sterilizer and autoclaves[edit | edit source]

They are devices for sterilizing tools and textiles using heat.

Autoclave[edit | edit source]

Vessel with excess water vapor pressure and a temperature of 120°C.

Water baths[edit | edit source]

Containers with electric heating element and stirrer, controlled to a constant temperature. Similar to thermostats.

Tempered operating tables[edit | edit source]

Artificial hypothermia during surgical interventions. Under the table top is a pipe with water that keeps the patient's body temperature at a constant selected temperature.

Cooling device[edit | edit source]

Equipment where the temperature is artificially reduced significantly below the ambient temperature.

Compressor principle of cooling – a suitable gas (ammonia) is sufficient, which then liquefies in the condenser, and in the evaporator inside the refrigerator the liquid evaporates, the gas expands and cools the surroundings.
Absorption principle – ammonia is absorbed in water and expelled from the water again outside the refrigerator.

Links[edit | edit source]

Source[edit | edit source]

KUBATOVA, Senta. Biophoto [online]. [cit. 2011-01-31]. <https://uloz.to/1162346/biofot.doc>.