Then divide the NL to provide heat in the furnace the horizontal pipe temperature 600° c for a period of 5 hours. Under an atmosphere of nitrogen gas at a flow rate of the heat 10 degrees Celsius per minute.
Then divide the NL to heat the furnace pipe horizontally at 600 ° C for 5 hours. Under the atmosphere of nitrogen gas at a flow rate of heating 10 ° C per minute.
Then divide the NL to heat in horizontal tube combustor temperature 600 C for 5 hours. Under the flow of nitrogen at a heating rate of 10 C per minute.