四种含氧化合物燃烧热的测定

通过对固体可燃物质燃烧热测定方法的改进,测定挥发性液体的燃烧热。实验采用氧弹量热计,将化合物注入胶囊中测其燃烧热,并保证化合物在实验过程中不溢出,不挥发,又要易于点燃。以柴油为参照测定含氧化合物（正丁醚、二甘醇二甲醚、二乙二醇丁醚和乙二醇丁醚）的燃烧热。实验测得,柴油的燃烧热Q柴油=-42.452 k J/g,四种含氧燃料中燃烧热值最高的是乙二醇丁醚和正丁醚：Q乙二醇丁醚=-43.143 k J/g,Q正丁醚=-42.111 k J/g。

Determination on combustion energies of four oxygenated chemicals

In order to determinate the combustion energies of oxygenated chemicals, we improve the method for determining the combustion energies of the combustible solid in this topic. In the experi- ment, we pour the volatile liquid into the capsule to measure its combustion energies, using the oxygen bomb calorimeter instrument. During the whole experiment, we must guarantee liquid non-spillable, non-volatile, but also easy to light. So this topic select diesel oil and oxygenated fuels （ butyl ether, diethylene glycol dimethyl ether, diethylene glycol monobutyl ether and butyl glycolether ） for the volatile liquid. We measured the combustion energies of diesel oil is -42. 452 kJ/g. Butyl glycolether and butyl ether are the highest in the four oxygenated fuels： Q butyl glycolether = -43. 143 kJ/g , Q butyl ether =- 42. 111 kJ/g.