ANN 111: Principles of Animal Nutrition and Feed Technology (2+1)

ADIABATIC CALORIMETER

• In this type an animal is confined in a chamber constructed in such away that heat loss through the walls of the chamber is reduced to near zero.
• This is attained by a box within a box.
• When the outer box or wall is electrically heated to the same temperature as the inner wall, heat loss from the inner wall to the outer wall is impossible.
• Water circulating in a coil in such chamber absorbs the heat collected by the inner wall; the volume and change in temperature of the water can be used to calculate sensible heat loss from animal body.
• The construction and operation are complicated and very expensive.