Fire / Smoke

Multicriteria Fire Detector

Tue, 02 Apr 2013 18:50:00 +0000

This photoelectric detector uses advanced onboard software to combine the signals from the photo and thermal elements.

Flue-gas economizer

Wed, 09 Jan 2013 21:16:00 +0000

The EcoFlex 90+ system packaged fan-powered flue-gas economizer can be installed in any part of a chimney horizontally or vertically. It can be used in conjunction with any gas-fired heating appliance and is suitable for use with draft-hood-and draft-diverter-equipped heating appliances. It allows multiple boilers to share a single economizer. —Enervex Inc.

AHR Booth 279

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Fire-alarm system design

Wed, 09 Jan 2013 18:53:00 +0000

System Sensor has launched a new online form that enables customers to request that System Sensor design their FAAST Fire Alarm Aspiration Sensing Technology^® projects.

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Sustainable Smoke-Control Systems

Sun, 01 Jul 2012 16:00:00 +0000

JOHN H. KLOTE, PE, DSc, Consulting Engineer, Leesburg, Va.

Overview of atrium and pressurization systems that minimize or eliminate components and consume less power

Sustainable smoke-control systems minimize or eliminate components found in conventional smoke-control systems—primarily, fans and ductwork. As a result, they tend to consume less power. This article discusses sustainable smoke-control systems—atrium smoke-control systems and pressurization smoke-control systems in particular.

Smoke Control in a Non-ducted Return-air System

Sun, 01 Jul 2012 16:00:00 +0000

JEFF ROBINSON and TODD VANGORDER, SET; Meridian Integrations; Tallmadge, Ohio

Meeting the increasingly common challenge of detecting smoke in a system with little or no return-air ductwork

While an entire book could be written on this subject (and likely has been), this article will focus on a design challenge common in new buildings: designing for smoke control in a non-ducted return-air system above a suspended ceiling.

A Focus on the Next Generation of Open-area Smoke Detection Technology

Wed, 27 Jul 2011 14:38:00 +0000

This webinar will discuss technological advancements of smoke detection for large open areas.

Don't Play the Blame Game

Fri, 07 May 2010 13:58:00 +0000

After I retired, I received a call from an engineer with whom I had worked. He told me that, nearly three years earlier, he had installed an oven that was used to burn paint off of hooks that held sheet-metal panels while they were being painted. He had been trying to control fumes and smoke at the oven inlet ever since without success, and the workers were threatening to walk off of the job if the fumes were not controlled. I agreed to visit the plant to see if I could come up with a solution.

Practical Applications of Smoke-Control Systems

Mon, 01 Mar 2010 17:00:00 +0000

ALLYN J. VAUGHN, PE, FSPE, LEED AP, and BRAD R. GEINZER, PE, LEED AP jba Consulting Engineers Las

Four basic design methods to help prevent smoke migration and maintain a tenable environment for occupants

Design criteria for smoke-control systems have changed over the years. Instead of ventilating an affected area, smoke-control systems now must prevent the spread of smoke to non-affected areas and/or provide a tenable environment in the area of incident. How effective are current smoke-control systems? Can building-code requirements for smoke-control systems be met reasonably? How can applications not described in building codes be addressed?

Minimum Smoke-Layer Depth in Atrium Smoke Control

Sun, 01 Mar 2009 17:00:00 +0000

JOHN H. KLOTE, DSC, PE Consultant Leesburg, Va.

Minimum smoke-layer depth, including the reason for the 20-percent requirement, engineering analyses, and design approaches

State-of-the-Art Atrium Smoke Control

Mon, 01 Dec 2008 17:00:00 +0000

JOHN H. KLOTE, DSc, PE John H. Klote Inc. Leesburg, Va.

Unlike other building systems, it is virtually impossible to test an atrium smoke-control system to design conditions. This primarily is because design