Knowing this point has great practical significance about saving fuel, decreasing the initial ash density, reducing the indued gas darkness, designing and improving the combustor of the industrial boiler
In addition,the results of the examining tests also show that the detecting test and diagnosis before class Ⅱmaintenance play a positive role in extending the periods of vehicle's maintenance,reducing the cost of detecting test and diagnosis,maintenance and repair per travelling mileage(or time),improving the rate of good condition and saving fuel.
More than one year running showed that the new preheater in comparison with the original heat storage type preheater had the advantages of the flue gas exhaustion temperature lowing by 67℃ , the air preheating temperature increasing by 103℃ , increasing the heat efficiency of the vacuum furnace by 37.8 percentages and reached 91.1% , saving fuel 107 million yuan per year, as well as widening the service temperature, prolonging the service life, avoiding pipe explosion and dust deposition, and more safety.
The use the tri-working-medium (kalium-diphenyl-steam) Rankine cycle can lead to an enhancement of thermal power plant efficiency by more than 50% and a fuel saving of nearly 35% with a simultaneous alleviation of environmental pollution.
The result of experiment showed that the fuel saving of HTAC ladle preheating system is 62.95% when the process of rising the temperature of the ladle was accomplished, and the fuel saving is 16.01% when the process of the roast and rising the temperature of the ladle was accomplished, by comparing the HTAC ladle preheating system with the traditional device.
The main factors, from aspects of the waters treatment of outside and inside the boiler and production transportation, which affect the service life of waste heat boilers are summarized and it has very important significance for fuel saving, environment protection and safety production.
The academic simulation result and the experimental simulation result showed that this combustor not only has the upper temperature lever and temperature distribution uniformity, but also has the higher efficiency of combustion and can reduce the quantity of NOx. It can get the integrate affection of the fuel saving and the contamination falling.
The straight line wheel-rail lubrication for railway was Studied in 1983 in USA. The effect in lubrication discovered first was to save tractive power by 15～18%, The use of multistage lubrication oil was able to save fuel cost by 1～3%.
The heat pipe exchanger composed of heat pipes has the merits of high heat transfer efficiency, simple configuration, safety and reliability, convenience in erection, low fluid resistance, and maintenance and applied power unnecessary; when used as an energy-saving device for waste heat recovery and heat utilization in the process, it can raise the heat utilization ratio by 30%, save fuel by 10%, and give good economic benefit while efficiently abating atmospheric contamination.
In an oil-gas mixing fired boiler,an orthogonal test with three factorsand three levels was performed to determine the optimum opening of primary,secondaryand tertiary air doors of burner to show that the boiler can reach the optimum efficiencyand achieve the goal ot fuel-saving.
Each method of operation and principle is stated so as to improve heating boilers' heat efficiency, therefore, the object of betterment he ating efficiency, fuel-saving, heating cost reduction and radical treatment of environmental contamination is achieved.
Based on the purpose of fuel-saving and improving the vacuum of air cooled units,a retrofit scheme of energy recovery type direct air cooling system has been put forward on the basis without changing the original system as fully as possible,and the feasibility and economic behavior of said scheme being studied.