What is car park ventilation?

What is car park ventilation?

Jet fan system is used for exhaust of smoke and harmful gases under control in case a fire occurs at car parks besides daily ventilation of car parks. It prevents smoke to diffuse whole car park and provides fire escapes to be smoke free in order to allow people to escape safely.

Why do car parks need ventilation?

Enclosed or underground car parks normally require ventilation systems to assist fire fighting operations. These systems generally also prevent the build-up of carbon monoxide during normal day-to-day use of the car park.

What is ductless Jet fan system?

1.1 The objectives of the ductless jet fans system are as follow: a) To relief heat and smoke from the car park in the event of fire. b) To assist fire-fighters in locating and attacking the fire safely. 2. SCOPE.

How does a Jet fan work?

The function of jet fans is based on the impulse principle. From a small surface area (fan outlet) air is discharged at a relatively high velocity. When this air collides with the air in front of the fan, it thrusts the air forwards while at the same time drawing the surrounding air along with it (induction effect).

What is the purpose of Jet fans?

Jet fans – also known as impulse or induction fans – support the natural flow between the supply air and extract air zones. They provide motion in regions with low air speeds, thus guaranteeing the daily ventilation requirement for all areas.

What is the purpose of Jet fan?

How do I choose a Jet fan?

Jet Fans are selected depending on their thrust value such as 20N, 30N, 50N, 80N and100N. They are selected also based on architectural design and their impact area to ensure there is no stagnant air in the car park( Image 2). no stagnant air in the car park.

What is the advantage of a blower with Jet fan technology?

The RYOBI 2-Cycle Gas Jet Fan Blower uses innovative Jet Fan Technology, a three stage fan design that optimizes air flow to generate an amazing 520 CFM and 160 MPH. The variable Speed Trigger and cruise control help you easily adjust to any area, from wide open yards to landscape beds.

How is ventilation factor calculated?

This practical math formula goes a long way when you’re considering air ventilation improvement in an indoor space:

1. CFM = (fpm * area), where fpm is the feet per minute.
2. To find the cubic feet per minute, substitute the FPM value with the area after the area is squared.

How does a Novenco jet ventilation system work?

NOVENCO jet ventilation systems can be adapted to cover the needs for CO ventilation and, in special circumstances, smoke control in case of fire. In conventional ventilation systems, all air is drawn through fans and ducting. This applies to both the fresh air supplied and the discharged spent air.

What kind of ventilation is used in closed car parks?

Simple conventional ventilation is used in closed car parks. Such systems also consist of fresh-air fans and exhaust fans, but no ducts are used. Conventional ventilation is used in closed car parks. It consists of both fresh-air fans and exhaust fans in combination with ducts for transporting air.

Who is the inventor of the ductless car park system?

As the inventor of the ductless car park system with jet fans in the early 90s, NOVENCO Building & Industry set a new standard for the ventilation of closed parking facilities. Cars have become a natural part of everyday life.

Is there room for ducts in a car park?

There is no room for ducts. Smoke control in case of fire is not considered during system design. The possibility of regulating the level of ventilation in response to variable requirements is not considered. Fire protection installations such as fire doors and fire walls prevent an unobstructed view of the car park.