Essays on Dampers

Question one

An artificially generated smoke differs from a real smoke from the fire in that the artificial smoke has high velocity. Its pressure is measurable at in terms of few inches WG or some few kilopascals. The smoke is pressurized or passed through a pressured compartment or blowers and extended heat exchangers nozzles. Natural smoke from the fire on the other side has a low pressure of movement.

Question two

Concept Smoke generator is the machine or the device that generates the artificial smoke by heating the smoke chemical above its boiling point turning it into vapor. The concept generator is an ...

Introduction

On the evening of February 23, 1991, the Philadelphia Fire Department received a call reporting a fire on the 22nd floor of the One Meridian Plaza. The fire department responded immediately but were faced with various challenges that made the fire unmanageable. The fire lasted for nineteen hours and spread to eight floors above the 22nd floor in the 38 story building. Firefighters were able to contain the fire when it spread to the 30th floor. The incident led to three casualties, all firefighters from the local Philadelphia Fire Department, and injuries to 24 others. For this task, we are supposed ...

The investigation on The Burj Dubai tower and the Taipei 101 building

The Burj Dubai tower The Burj Dubai tower is one of the world tallest buildings to have ever been constructed by engineers. This type of a building wind forces and the resulting motions in the upper chamber of the building become some of the factors that call for a major concern in the construction of the building. Engineers had to make an extensive research programs in wind tunnels in the Rowan, Williams, Davies and Erwin (RWDI) 2.4 ×1.9 meter, and 4.9 × 2.4 meter boundary layer wind tunnels in Guelph, Ontario. In the wind tunnel program, it includes pedestrian wind environment ...

A flying aircraft requires some control. The control can be delivered by a human or a computer. In this case, a computer is much safer, faster and reliable in controlling a flying an aircraft than a human being. A Stability Augmentation System manages the control surfaces of an aircraft and alters their movement as necessary to make the aircraft more stable at all times. SAS is used to eliminate unfavorable effects such as short period oscillations, Phugoid oscillations, Dutch rolls and spiral modes. Stability Augmentation system together with a rate control system constitutes a flight management system. Rate control system manage the pilots demand for movement ...

Accelerometers are used in automobiles to detect rapid collisions and have the ability to sustain a wide range of shock necessary for air bag deployment systems. The choice of accelerometers is founded on a number of factors including size, resistance to noise and temperature variations, and the response mechanism. Airbags is a safety device mounted in vehicles and consists of a flexible envelope that guards occupants from striking internal objects. Various components are necessary for an airbag system. Accelerometers, gyroscopes, impact sensors among others are just a few used to detect an impact from a collision. The signal in the sensing system should reach a threshold ...