<span>The purpose of this article is to describe the automation developed by means a programmable logic controller for burner fire tube boiler, in order improve efficiency process generating steam quantified through percentage oxygen generated. The implementation was under control strategy based on use servomotors that allow gradually open or close solenoid valves dose amount air and fuel...

Emissions from two biofuels, a soy-based biodiesel and an animal-based biodiesel, were measured and compared to emissions from a distillate petroleum fuel oil. The three fuels were burned in a small (3.5x10 Btu/hr) firetube boiler designed for use in institutional, commercial, and light industrial applications. Emissions were measured for carbon monoxide (CO), carbon dioxide (CO2), oxides of ni...

This paper discusses the application of hybrid model predictive control to control switching between different burner modes in a novel compact marine boiler design. A further purpose of the present work is to point out problems with finite horizon model predictive control applied to systems for which the optimal solution is a limit cycle. Regarding the marine boiler control the aim is to find a...

Energy saving potentials related to steam generation and its usage in the medium size bakery are analyzed presented. Input data needed for investigation gathered through detailed energy audit. Four savings measures analysed detail: 1) change of heat generator space heating domestic hot water preparation from boiler condensing boiler, 2) reduction losses condensate distribution lines, 3) utiliza...

This work presents Combined Heat and Power (CHP) gas engine factory as one of the possible solutions for cogeneration in industry which has high values electrical total efficiency, efficiency relatively changes little with change power plant. The cost-effectiveness such a plant is significant to supply industrial consumer electricity from grid, heat boiler. A problem assessing using that it use...

To analyze the performance of the separation process, we have introduced the thermodynamic concept of exergy through the exergetic efficiency of the column. The simulation results show that the exergetic output is relatively low and that the produced irreversibility fluxes are distributed throughout the whole column in a non-uniform manner. They are particularly significant in the condenser, bo...

Abstract Given the problems existing in operation of supercritical 600MW boiler, such as spiral pipe water cooling wall outlet, superheater and reheater surface overtemperature easily, amount are too large under high load, low load is small to meet need cold heating, boiler combustion optimization adjustment carried out. Through pulverized coal fineness, air distribution characteristics, swingi...