基于正庚烷油池火验证大尺度量热装置

Verification of large scale calorimeter with n-heptane pool fire

针对大尺度量热计装置,在隧道量热计内开展试验对正庚烷油池火热释放速率、热释放总量进行校正。利用冷流场校正了解排烟管道气体流量的稳定性及均匀性,分别针对不同油盘个数、排列方式条件下进行正庚烷油池火校正试验。结果表明:在冷流场校正试验中,排烟管道内的烟气体积流量维持在27.9m^3/s;通过对实测热值与理论热值的误差比较分析,7组试验中有6组试验的实测热值与理论热值之间的误差低于10%。

with regard to large scale calorimeter, the test in the tunnel calorimeter was carried out to correct the fire heat release rate and total heat release amount of n-heptane oil pool. Cold flow field correction was used to understand the stability and uniformity of gas flow in exhaust pipe. The pool fire correction test of n-heptane oil was carried out under different number and arrangement of oil pan. The results showed that: in the cold flow field calibration test, the volume flow rate of gas in the exhaust pipe maintains at 27.9 m^3/s constantly. Through the comparison and analysis of the errors between the measured calorific value and the theoretical calorific value, the error between the measured calorific value and the theoretical calorific value is less than 10% in 6 of the 7 tests.