Customer Types: Mechanical Engineers
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What You Get for Free When Specifying Short-Circuit Exhaust Hoods
KitchenVentilation.com is pleased to have guest Blogger, Steve Brown, Member of ASHRAE provide his take on the origins of short-circuit exhaust hoods. The history of short-circuit exhaust hoods. The…
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Taking a Deeper Dive, Cooking Odors, and Why Are They Such A Challenge to Mitigate?
It suffices to say most cooking odors are pleasant when in small doses. Where issues arise is when you have very active foodservice operations that are adjacent or part…
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I’ve Seen Ventilated Ceilings for Kitchens in Europe. Can they be used in North America?
In a word yes, Ventilated Ceilings can be installed in North America, assuming it is listed for that purpose. Let’s talk about what a Ventilated Ceiling is. It is…
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What is Schlieren Thermal Imaging in Commercial Kitchen Ventilation?
Wouldn’t it be nice to see the heat plume coming off of an appliance? Do you wish you could see if a hood is capturing all the convective heat?…
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How heat sources differ in commercial kitchens than other commercial spaces
Mechanical engineers calculate cooling and heating loads for commercial spaces in order to size the ventilation systems. The type of space plays a key role in determining necessary ventilation…
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Why is a heat load based design important for kitchen hoods?
Establishing exhaust volumes for hoods had been an inexact science, primarily relying on U.L. values to establish exhaust rates. U.L. however clearly states that the minimum exhaust rates established…
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How do replacement air ceiling registers affect the hood?
The placement and location of ceiling registers (diffusers) for the introduction of replacement air can have a direct impact on the proper operation of the exhaust hood. Diffusers that…
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Who is the “AHJ” and what authority do they have on a project?
AHJ refers to “The Authority Having Jurisdiction”. The AHJ has final authority for the interpretation of fire and building codes (NFPA, IMC). Although model codes are interpreted fairly consistently,…
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