CALORIFIC VALUE CALCULATION FORMULA GENERATING SYSTEM, CALORIFIC VALUE CALCULATION FORMULA GENERATING METHOD, CALORIFIC VALUE CALCULATING SYSTEM, AND CALORIFIC VALUE CALCULATING METHOD

1 . A calorific value calculation formula generating system comprising:

a measuring mechanism measuring, at plural temperatures, heat dissipation constant values or thermal conductivity values of each of plural mixed gases each containing plural kinds of gas components; and

a formula generation module generating a calorific value calculation formula having heat dissipation constant or thermal conductivities at the plural temperatures as independent variables and a calorific value as a dependent variable on the basis of known calorific value values of the plural mixed gases and the heat dissipation constant values or the thermal conductivity values measured at the plural temperatures.

2 . The calorific value calculation formula generating system according to claim 1 , wherein the number of the plural temperatures is at least the number of the plural kinds of gas components minus 1.

3 . The calorific value calculation formula generating system according to claim 1 , wherein the formula generation module generates a calorific value calculation formula using support vector regression.

4 . The calorific value calculation formula generating system according to claim 1 , wherein the measuring mechanism comprises a heater heating each of the plural mixed gases.

5 . The calorific value calculation formula generating system according to claim 4 , wherein the measuring mechanism further comprises a heat dissipation constant calculation module calculating heat dissipation constant values of each of the plural mixed gases by dividing drive power values of the heater by differences between temperatures of the heater and temperatures of each of the plural mixed gases, respectively.

6 - 7 . (canceled)

8 . A calorific value calculation formula generating method comprising the steps of:

preparing plural mixed gases each containing plural kinds of gas components;

measuring heat dissipation constant values or thermal conductivity values of each of the plural mixed gases at plural temperatures; and

generating a calorific value calculation formula having heat dissipation constant or thermal conductivities at the plural temperatures as independent variables and a calorific value as a dependent variable on the basis of known calorific value values of the plural mixed gases and the heat dissipation constant values or the thermal conductivity values measured at the plural temperatures.

9 . The calorific value calculation formula generating method according to claim 8 , wherein the number of the plural temperatures is at least the number of the plural kinds of gas components minus 1.

10 . The calorific value calculation formula generating method according to claim 8 , wherein the step of generating a calorific value calculation formula uses support vector regression.

11 . The calorific value calculation formula generating method according to claim 8 , wherein the step of measuring heat dissipation constant values of each of plural mixed gases comprises heating each of the plural mixed gases with a heater, and dividing drive power values of the heater by differences between temperatures of the heater and temperatures of each of the plural mixed gases, respectively.

12 - 13 . (canceled)

14 . A calorific value calculating system comprising:

a measuring mechanism measuring, at plural temperatures, heat dissipation constant values or thermal conductivity values of a measurement subject mixed gas whose calorific value is unknown;

a formula storage device storing a calorific value calculation formula having heat dissipation constant or thermal conductivities at the plural temperatures as independent variables and a calorific value as a dependent variable; and

a calorific value calculation module calculating a calorific value of the measurement subject mixed gas by substituting the heat dissipation constant values or the thermal conductivity values of the measurement subject mixed gas measured at the plural temperatures into the heat dissipation constant or the thermal conductivities at the plural temperatures as the independent variables of the calorific value calculation formula.

15 . The calorific value calculating system according to claim 14 , wherein the number of the plural temperatures is at least the number of the plural kinds of gas components contained in the measurement subject mixed gas minus 1.

16 . The calorific value calculating system according to claim 14 , wherein the calorific value calculation formula having the heat dissipation constant or the thermal conductivities at the plural temperatures as the independent variables and the calorific value as the dependent variable was generated on the basis of calorific value values of plural sample mixed gases each containing plural kinds of gas components and heat dissipation constant values or thermal conductivity values of each of the plural sample mixed gases measured at the plural temperatures.

17 . The calorific value calculating system according to claim 16 , wherein support vector regression was used for generating the calorific value calculation formula.

18 . The calorific value calculating system according to claim 14 , wherein the measuring mechanism comprises a heater heating the measurement subject mixed gas.

19 . The calorific value calculating system according to claim 18 , wherein the measuring mechanism further comprises a heat dissipation constant calculation module calculating heat dissipation constant values of the measurement subject mixed gas by dividing drive power values of the heater by differences between temperatures of the heater and temperatures of the measurement subject mixed gas, respectively.

20 - 24 . (canceled)

25 . A calorific value calculating method comprising the steps of:

measuring, at plural temperatures, heat dissipation constant values or thermal conductivity values of a measurement subject mixed gas whose calorific value is unknown;

preparing a calorific value calculation formula having heat dissipation constant or thermal conductivities at the plural temperatures as independent variables and a calorific value as a dependent variable; and

calculating a calorific value of the measurement subject mixed gas by substituting the heat dissipation constant values or the thermal conductivity values of the measurement subject mixed gas measured at the plural temperatures into the heat dissipation constant or the thermal conductivities at the plural temperatures as the independent variables of the calorific value calculation formula.

26 . The calorific value calculating method according to claim 25 , wherein the number of the plural temperatures is at least the number of the plural kinds of gas components contained in the measurement subject mixed gas minus 1.

27 . The calorific value calculating method according to claim 25 , wherein the calorific value calculation formula having the heat dissipation constant or the thermal conductivities at the plural temperatures as the independent variables and the calorific value as the dependent variable was generated on the basis of calorific value values of plural sample mixed gases each containing plural kinds of gas components and heat dissipation constant values or thermal conductivity values of each of the plural sample mixed gases measured at the plural temperatures.

28 . The calorific value calculating method according to claim 27 , wherein support vector regression was used for generating the calorific value calculation formula.

29 . The calorific value calculating method according to claim 25 , wherein the step of measuring radiation coefficient values of the measurement subject mixed gas comprises heating the measurement subject mixed gas with a heater, and dividing drive power values of the heater by differences between temperatures of the heater and temperatures of the measurement subject mixed gas, respectively.

30 - 34 . (canceled)