Project Title: Design and Development of an 80 kW Combustion Test Facility
Aims & Objectives:
• To design and develop a Combustion Test Facility of a power rating of 80 kW to analyze the combustion of pulverized coal in a down-fired pulverized coal furnace.
i. The coal furnace will be composed of four, circular, refractory-lined sections, each 1000mm long, with internal dimensions of 350 mm diameter. These sections will be flanged together. ii. Material of construction of furnace will be decided after considering various parameters like operating temperature and strength of material required. iii. The coal furnace will be designed to provide sample ports for the analysis of flue gases of coal combustion. iv. Stoichiometric calculations…show more content… Chapter 1: Introduction
1.1 Combustion Test Facility (CTF)
A Combustion Test Facility comprises mainly of a furnace in which pulverized coal or any other form of fuel can be combusted and the flue gases produced can be analyzed via sample ports provided in the furnace. Since, it is a combustion test “facility”, it would also include proper setting up of that furnace on a mechanical structure so that the results of the flue gases (chemical results) could be analyzed properly and conveniently. An 80 kW Combustion Test Facility means that the heat capacity of the furnace is 80 kW.
Coal is a combustible black or brownish-black sedimentary rock. Throughout history, coal has been used as an energy resource. Primarily, it is used as a fuel (fossil fuel) for the generation of electricity and/or heat and it is the largest source of energy for generation of electricity worldwide. It is also used for various industrial purposes such as refining of metals.
1.3 Types of Coal:
Coal is generally divided into the following types:
i) Anthracite: This form of coal contains carbon content in the range of 86-90%. It is mostly used for home heating applications. ii) Bituminous: It contains carbon content in the range of 45-86% and is used primarily for power generation. iii) Sub Bituminous: The carbon content is about 35-45% in this type of coal. It has less sulphur content and