Please source ASME-section-VIII code, which is applicable unfired pressure vessel design.
This code requires one to consider allowable stress to be 25 % of the ultimate tensile stress, thus giving safety factor of 4.
Equipments designed as per ASME Section VIII are hydraulically or pneumatically...
Please refer to my answer to the FAQ under Power Engineer.
Gas is a cleaner fuel, and combustion eficiencies are higher than combustion efficiencies in oil burners, where efficiency depends on degree of atomisation and pressure of combustion air to atomise the oil. Calorific values are more or...
Natural gas, bio-gas or LPG are better fuels than oil, in general. Gaseous fuels are clean, combustion efficiencies are high.Thus, if economics permit, always use gas instead of oil as fuel inboilers, heaters, ovens, furnaces etc.