A Refrigerated Web Camera for Photogrammetric Video Measurement inside Biomass Boilers and Combustion Analysis

Abstract

This paper describes a prototype instrumentation system for photogrammetric measuring of bed and ash layers, as well as for flying particle detection and pursuit using a single device (CCD) web camera. The system was designed to obtain images of the combustion process in the interior of a domestic boiler. It includes a cooling system, needed because of the high temperatures in the combustion chamber of the boiler. The cooling system was designed using CFD simulations to ensure effectiveness. This method allows more complete and real-time monitoring of the combustion process taking place inside a boiler. The information gained from this system may facilitate the optimisation of boiler processes.

Validation of terrestrial laser scanning and photogrammetry techniques for the measurement of vertical underclearance and beam geometry in structural inspection of bridges

“…Photogrammetry and terrestrial laser scanning [10] are two geodetic techniques which have significantly progressed in recent years and implementation has increased in fields such as architecture [11,12], civil engineering [13][14][15][16][17][18][19][20][21], industry [22,23], and archaeology [24,25], to name a few.…”

Analysis of Soot Propensity in Combustion Processes Using Optical Sensors and Video Magnification

“…Rapid advances in optical sensors and computational support for data capturing and processing have triggered interest in alternative non-invasive sensing for combustion diagnostics using optical measurements. Recent work reports effective approaches based on optical sensors for identification of conversion zones in a combustion chamber (drying, devolatilization and char oxidation) [ 29 ], estimating the radiation emitted by a flame [ 30 , 31 , 32 ], and reconstructing the temperature of a volumetric representation of a flame [ 33 ]. While these methods focus on energy measurements, they do not address directly the challenges associated to reducing the environmental impact of combustion-based processes.…”