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Meeting the requirements of the Building Regulations
Published in Ray Tricker, Samantha Alford, Building Regulations Pocket Book, 2023
A chimney is an architectural ventilation structure made of masonry, clay or metal that isolates hot toxic exhaust gases or smoke produced by a boiler, stove, furnace, incinerator or fireplace from human living areas.
Introduction to Civil Engineering
Published in P.K. Jayasree, K Balan, V Rani, Practical Civil Engineering, 2021
P.K. Jayasree, K Balan, V Rani
A chimney is a tall structure constructed for the purpose of discharging smoke or hot gases which emanate from a furnace or a fireplace to the outside atmosphere. It is usually kept in a vertical position so that gases can pass smoothly. Chimneys can be found in buildings, factories, ships, steam locomotives, brick kilns, etc. The gases which are discharged from factories are usually pollutant gases. Since they are emitted out through very tall towers to the higher portion of the atmosphere, the surrounding area is not polluted. Figure 1.11 shows a gigantic twin chimney, once a part of old Croydon Power station, London.
Thermal Environment Design Strategies
Published in Chitrarekha Kabre, Synergistic Design of Sustainable Built Environments, 2020
When the solar radiation falls on the side of the chimney, the column of air inside the chimney is heated. If the top exterior vents of the chimney are closed, the heated air is forced back into the living space. This provides a type of convective air heating. As the air cools in the room, it is pulled back into the solar chimney, heating once again. Conversely, if the vent at the top of the chimney is kept open, the heated air is pulled up and out of the chimney, pulling new air in from the outside and creating a sort of ‘draft’ that provides cool, fresh air into the building. Thus a solar chimney can operate as a passive solar heating and cooling system.
A complete design data and performance parameter evaluation of a pilot scale solar updraft tower
Published in Heat Transfer Engineering, 2020
Ramakrishna Balijepalli, V. P. Chandramohan, K. Kirankumar
In industries, chimneys are made of concrete and cement. It may be designed as straight vertical, divergent and sometimes convergent-divergent shapes. Each has its own characters and enhances the air flow and creates pressure difference. In this SUT plant, since it is a prototype, it is needed to find the material having the following essential characteristics such as light weight, heavy wind withstand characteristics capability, moisture resistant, and structurally strong in nature. For achieving this, there were different materials picked and their glass transition temperature, melting temperature, density, thermal conductivity and specific heat were picked and analyzed. Since it is solar heating application, polycarbonate material is selected to make this prototype of SUT plant.