Method of Measurement and Calculation of the Heat Efficiency of oil Pipeline Heaters

According to the national standard the General Rule for Calculation of Heat Efficiency of Equipment and in reckening with the characteristic of the coil heater used on the oil pipeline, thc article pre-sents the methods to measurc and calculate the heatefficicncy of heaters.More place in particular is given to the introduction of the precise equations for total heat content in smoke, replacing the former diagram so as to be suitable for using computers.