Computational and Experimental Studies on Combustion and Co-Combustion of Wood Pellets with Waste Glycerol.

The shortage of fossil fuels and their rising prices, as well as the global demand for renewable energy and the reduction in greenhouse gas (GHG) emissions, result in an increased interest in the production of alternative biofuels, such as biodiesel or biomass pellets. In this study, the possibility of utilizing waste glycerol, as an addition to pine pellets intended for heating purposes, has been investigated. The usefulness of pellets containing glycerol additions has been compared in terms of applicable quality standards for wood pellets.

Usage of Converter Gas as a Substitute Fuel for a Tunnel Furnace in Steelworks.

Converter gas (BOFG) is a by-product of the steel manufacturing process in steelworks. Its usage as a substitute fuel instead of natural gas for fueling a metallurgical furnace seems to be reasonable due to potential benefits as follows: CO emission reduction into the ambient air and savings in purchasing costs of natural gas. Results of theoretical analysis focused on implementing converter gas as a fuel for feeding a tunnel furnace for either steel plate rolling, steel sheet hardening in its real working condition or both, are discussed.

Computational and Experimental Studies of Selected Types of Biomass Combustion in a Domestic Boiler.

The paper analyzes the suitability of four types of biomass pellets as a fuel for heating purposes. Three types of waste biomass (sunflower husks, rapeseed cake, and corn straw) and one type of biomass grown for energy purposes (willow) were selected. After appropriate preparation, the selected starting materials were subjected to the pelletization process.

[Late diagnosed celiac disease in a mother and thre doughters].

A family of seven members with lately diagnosed celiac disease in mother and three doughters was described in the present work. In mother, atypical celiac disease was diagnosed at the age of 39 yers. In two twin dughters potential celiac disease was diagnosed at the age of 4,5 years and in 18-years old daughter- atypical celiac disease.

Effective methods of reduction of nitrogen oxides concentration during the natural gas combustion.

This paper contains experimental research of NOx reduction in the combustion process with the primary methods, which were applied separately and in combined systems. In addition, the pulsation disturbance (PD) was applied, that is the gas stream was disturbed to increase the intensity of reagents mixing. An experimental stand was built to determine an influence of the following primary methods: air staging, reburning and flue gas recirculation on a reduction of NOx concentration.