ventilation system Articles
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Foundry Lane Kitchen Extension - Case Study
Project: Modular Kitchen Extension Client: Southampton City Council Completed: October 2010 Floor area: 110m2 Duration: 9 weeks Location: Southampton, Hampshire Value: £400,000 Turnkey service elements completed: Design Appliances supply and installation Extraction/ventilation system Internal finishes Mechanical and electrical design and installation Furniture supply and ...
By Modulek
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Use of analytic hierarchy process and fire dynamics simulator to assess the fire protection systems in a tunnel on fire
The road and rail tunnels are increasing in number. Corresponding to this higher number of tunnels, a higher number of accidents related to safety problems occur. The safety of road and rail tunnels is mostly related to fire safety. Our purpose in this paper is to present a new integrated approach to the analysis of fire safety in tunnels. Using different techniques from the decision support ...
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Tunnel RTA drill and demonstration of the tunnel smoke control system - Case Study
The requirement To simulate the smoke from a fire on an articulated lorry within a major 5 lane tunnel on the M25, increasing in density and volume as the fire was deemed to have taken hold. A series of staged accidents behind the RTA supplemented the fire itself, to create challenges for all of the emergency services. At the conclusion of the RTA exercise, a demonstration of the Saccardo ...
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Butterfield Business Park
Design and installation of mechanical, electrical and public health services a new business village, this project was the first office development in the UK to incorporate a passive heating and cooling ventilation system utilising earth ...
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Identification for process control and bioengineering: open loop frequency domain estimation
A previous paper has outlined a novel method for estimation of the parameters (including the time delay) of a general Single Input, Single Output (SISO) process model from an appropriate number of arbitrarily specified points on the process frequency response. The method involved combining an analytical approach with a least squares approach using a gradient algorithm, to provide accurate ...
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Operation Comet - Hatfield Tunnel RTA (road traffic accident) - Case Study
A staged multi-vehicle accident in the Hatfield Tunnel, involving a road tanker, 2 lorries and a minibus took place in October 2011. Concept's ViCount smoke system produces the world's most persistent artificial smoke, critical when you are looking at smoke travel over several kilometres. The operation was designed to test the responses of the emergency services and the tunnel video smoke ...
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Monitoring and control of CO emissions in parking structures
Until recent years most parking garage owners and managers did not realize the detrimental effects that carbon monoxide emissions from motor vehicles have on the air quality inside parking garages. With increasing awareness of indoor air quality, astute parking garage owners and managers place great importance on the reduction of CO in parking garages. Ventilation systems are a must for today's ...
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Adena Beef Packing Plant Ozone Odor Control System - Case Study III
Adena Beef in Florida is an excellent example of a purpose-built Ozone odor control system in a high-throughput ventilation system. The ventilation system was designed specifically for the Envron Ozone odor control ...
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CO2 In gyms saves big buck for the Coquitlam school distric case study
Background The Coquitlam School District has been able to save $10,000 to $15,000 in annual energy costs for each of its schools by installing CO2 based ventilation control in its Gymnasiums and auditoriums. The school district is nestled in the foothills of the Rocky Mountains just outside of Vancouver BC. Besides being blessed with a mild maritime climate (5400 heating degree days, 59 cooling ...
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CFD modelling of nitrogen injection in a longwall gob area
This paper describes computational fluid dynamics (CFD) simulations conducted to investigate the effectiveness of N2 injection in an active panel and a sealed longwall gob area to prevent and suppress spontaneous heating of coal using various injection locations and flow rates. In the active panel simulations, a single longwall panel with a bleederless ventilation system was simulated. The ...
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Six Ways to Improve Indoor Air Quality Now
Air quality is an important issue to anyone’s health, and many people don’t realize that their health issues and illnesses could be significantly diminished if their air quality was improved. There is much scientific evidence to suggest that the indoor air can be more polluted than the air outdoors, even in industrialized areas. When people spend eight or more hours a day in the same ...
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CFD modelling of sampling locations for early detection of spontaneous combustion in long–wall gob areas
In this study, computational fluid dynamics (CFD) modelling was conducted to optimise gas sampling locations for the early detection of spontaneous heating in longwall gob areas. Initial simulations were carried out to predict carbon monoxide (CO) concentrations at various regulators in the gob using a bleeder ventilation system. Measured CO concentration values at these regulators were then used ...
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Hot smoke test in a 16 platform underground siding - Case Study
The requirement Our brief was to produce a thermally buoyant smoke layer in order to test the efficiency of the high level smoke extraction system, activating the VESDA smoke detection system, but without activation of the sprinkler system: We supplied smoke generating equipment, an operator and technical guidance as to how this could be achieved. The testing took place over a period of ...
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The Importance of Static Pressure for your Dust Collector
Static Pressure and Your Dust Collection System Static pressure is the pressure created by a fan or other source to move air through a ventilation system and plays a critical role in the design and performance of pulse jet baghouse dust collection systems. Today we are discussing the importance of static pressure, what it is, how it’s measured, and how to calculate ...
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Why is ventilation indispensable?
Ventilation is the replacement of one part of air with another part. Usually polluted air is replaced by clean air. Ventilation should lead to an increase and improvement in the purity of air. In this article you will find out the most important reasons to ventilate. Why is ventilation important? A healthy living and working environment are essential for optimal work performance. Good ...
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Development of emission factors for the control of lead and other metals during bridge construction work
This study was conducted to develop emission rates and emission factors for lead and other metals during abrasive blasting and power tooling operations. Emission factors are useful in controlling process emissions since it allows for the extrapolation of emissions from one process to another related process. Area samples were collected inside the bridge containments and emission rates were ...
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Copper Electrowinning in the Absence of Acid Mist: Six Years of Industrial Application
Acid Mist Capture - Abstract with details about this technology fully developed by SAME. This paper reviews the fundamentals of a state – of – the art tankhouse ventilation system where acid mist captured at the source is further treated through high efficiency scrubbers allowing the releasing of clean and dry air to the ambient. Results obtained at plants show that acid mist concentration ...
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Monitoring Multiple Gas Hazards in Ice Arenas
The equipment used in an arena such as an ice re-surfacer, ice edger, floor sweepers, lift trucks and other special equipment are more often powered by fuel than electricity. The exhaust produced by the gas, propane or diesel fuel powered machines emits, into the air, carbon monoxide (CO), nitrogen dioxide (NO2) and particulates. Ammonia (NH3) is commonly used in the ice chiller mechanical room ...
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Measurements, model simulations and reduction of CO concentrations inside an urban road tunnel in Milan
A programme to improve the air quality inside the road tunnels of the Italian city of Milan has involved three steps: 1) evaluation of the air pollution levels inside some tunnels; 2) planning an air improvement project for one tunnel, supported by effectiveness evaluation; 3) implementation of this project. The characterisation of the air quality was carried out by measuring the typical traffic ...
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A preliminary study of the application of Background Oriented Schlieren (BOS) for the qualitative imaging of methane emissions from coal
Methane presents a pervasive risk in most coal mines, its dilution being one of the primary objectives of the ventilation system. Although many different types of detectors and techniques exist for quantifying methane, little is known about the qualitative aspects of methane, such as visualising how this gas flows from coal. Background Oriented Schlieren (BOS) provides a potential method from ...
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