Due to the fact that the determination of coal calorific value is one of the most important indicators in coal laboratory analysis, the equipment for measuring coal calorific value has strict requirements for the coal laboratory.

(1) The heat chamber in the coal laboratory should be used as a dedicated room for measuring calorific value, and no other experimental work should be carried out indoors;

(2) Indoor curtains should be equipped to avoid direct sunlight;

(3) It is advisable to measure the temperature change no more than 1 ℃ each time; The temperature difference between winter and summer should not exceed 15-30 ℃. Therefore, those who have the conditions should prepare air conditioning equipment;

(4) When measuring the calorific value of coal, strong ventilation and heat source radiation should be avoided indoors. In short, in order to reduce the impact of environmental conditions on the calorific value measurement results, the calorific value measurement room should maintain a relatively constant room temperature as much as possible. The measurement of heat generation shall not be carried out before the room temperature remains constant.

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