The operating principle of condensing boilers is based on exploiting heat from flue gases to pre-heat cold water at the inlet of the boiler: by condensing into liquid form, flue gases recover their latent heat of vaporization, leading to 10e12% increased efficiency with respect to traditional boilers. However, monitoring the energy efficiency of condensing boilers is complex due to their nonlin...

Biodiesel is widely accepted as a fuel that similar to diesel with various advantages. Biodiesel's low-temperature flow qualities are one of its characteristics limits use. The goal this study was see how volumetric blends palm biodiesel and diesel, affected the performance emissions fired vertical coil type, water tube, non IBR boiler. Various were prepared like PB25, PB50, PB75, PB100 test in...

Abstract Given the failure and cracking of elbow superheater tube a quick-start boiler, macroscopic, chemical composition, metallographic, microhardness tests were carried out on failed samples, reasons analyzed. The results show that reason is material state pipe not good, stress condition complex, at high level, inner wall produces intergranular during operation, which leads to rupture.

In a fertilizer plant, the steam boiler is the most important component. In order to keep the plant operating in the effective mode, the boiler efficiency must be observed continuously by several operators. When the trend of the boiler efficiency is going down, they may adjust the controlling parameters of the boiler to increase its efficiency. Since manual operation usually leads to unexpected...

In autumn 2017, an experiment was conducted for the reduction of carbon monoxide (CO) emissions commissioned by Holmen Paper Braviken, one of the world’s most production-efficient paper mills. Digitalization has increased in recent years, which has resulted in a decreased demand for graphic paper. The goal of finding cost-reducing solutions in the manufacturing process has been increased in Hol...

The sugar industry is an ideal sector for electricity cogeneration due to a large amount of burnable bagasse produce as by-product. Bagasse produced in the always consists moisture affecting efficiency boiler plant. In our case study, plant run by burning found with problem and suffocating low power generation last few years. per tonne currently lower than optimal substantial percentage water p...

The purpose of this work is to develop a reasonably detailed dynamic model of a Lurgitype industrial methanol synthesis reactor so as to determine important simplifications, to identify application/operating model limits, and to preliminary check the feasibility for the Nonlinear Model Predictive Control (NMPC) methodology. To do so, a Partially Differential Equation (PDE) system is formulated ...

Metal temperature is to be known at boiler design stage for material selection. Experimental metal temperature data collected at supercritical water conditions. ANN model developed using experimental data for metal temperature prediction. 100% agreement at ±7 C deviation for experimental data. 97.22% agreement at ±10 C deviation for literature data. 120