.:Th3rm0ch3mi5try:.: .:Type of Calorimeter:.

There are five (5) types of calorimeter.

They are: Bomb calorimeter, Calvet-type calorimeter, constant-pressure calorimeter, differential scanning calorimeter and isothermal calorimeter.

1. Bomb Calorimeter

A bomb calorimeter is a type of constant-volume calorimeter used in measuring the heat of combustion of a particular reaction

Bomb Calorimeter

2. Calvet-type reactian

The detection is based on a three-dimensional flux meter sensor. The flux meter element consist a ring of several thermo couple in series. The corresponding thermopile of high thermal conductivity surrounds the experimental space within the calorimetric block. The radial arrangement of the thermopile guarantees an almost complete integration of the heat. This is verified by the calculation of the efficiency ratio that indicates that an average value of 94% +/- 1% of heat is transmitted through the sensor on the full range of temperature of the Calvet-type calorimeter. In this setup, the sensitivity of the calorimeter is not affected by the crucible, the type of purge gas or the flow rate. The main advantages of the setup is the increase of the experimental vessel's size and consequently the size of the sample without affecting the accuracy of the calorimetric measurement.

Calvet-type Calorimeter

3. Constant-pressure calorimeter

A constant-pressure calorimeter measures the change in enthalpy of a reaction occurring in solution during which the atmospheric pressure remains constant

Constant-pressure Calorimeter

4. Differential scanning calorimeter

In a differential scanning calorimeter (DSC), heat flow into a sample usually contained n the small aluminium capsule or 'pan' is measure differentially. By comparing it into an empty reference pan.