Exhaust gas analysis device, exhaust gas analysis method, and program storage medium for exhaust gas analysis device

An exhaust gas analysis method that is employed to analyze exhaust gas generated as a result of fuel being combusted in which:

• a concentration of a component to be measured in the exhaust gas is measured;
• a concentration of CO2 in the exhaust gas is measured;
• a concentration of moisture in the exhaust gas is estimated based on the measured CO2 concentration and on a ratio between the hydrogen and the carbon composing the fuel;
• and
• the measured concentration of the component to be measured is corrected based on the estimated moisture concentration.

A storage medium for a program for an exhaust gas analysis device on which is stored a program for an exhaust gas analysis device that analyzes exhaust gas generated as a result of fuel being combusted and comprises a first analyzer that measures a concentration of a component to be measured in the exhaust gas, and a second analyzer that measures a concentration of CO2 in the exhaust gas, wherein the program for an exhaust gas analysis device causes a computer to perform functions of:

• a storage portion that stores a hydrogen/carbon ratio, which is a ratio between hydrogen and carbon composing the fuel;
• a moisture concentration estimating portion that, based on the measured CO2 concentration and on the hydrogen/carbon ratio of the fuel, estimates a concentration of moisture in the exhaust gas;
• and
• a correcting portion that, based on the estimated moisture concentration, corrects the measured concentration of the component to be measured.