Guide To Learn
24.4.1 Elevators or lifts Elevators are used in buildings having more than four storeys. They are used for providing vertical transportation of passengers or freight. They can be either electric traction elevators or hydraulic elevators. Electric traction elevators are used exclusively in tall buildings. Hydraulic elevators are generally used for low-rise freight service which rises […]
24.3.1 Necessity of ventilation 24.3.2 Functional requirements of a ventilation system A ventilation system should meet the following functional requirements. 24.3.2.1 Rate of supply of fresh air The quantity of fresh air to be supplied to a room depends upon the use of the building to which it is subjected. The rate of supply of […]
It should be the objective of every engineer and architect, while planning and designing the buildings, that the structures offer sufficient resistance against fire so as to afford protection to the occupants in the event of fire. This objective is achieved by adequate planning, use of fire-resisting materials and construction techniques and by providing quick […]
Air conditioning is the process of treating air so as to control simultaneously its temperature, humidity, purity and distribution to meet the requirements of the conditioned space, such as comfort and health of human beings and other needs of the situation. 24.1.2 Purposes of air conditioning The principle involved in air conditioning is: 24.1.3 Principle […]