Presentation 1 Commercial Kitchen Ventilation: How to Make Kitchens A Better Place to Work In While Protecting the Environment: For professional (commercial) kitchens there are a broad variety of items where best practices can be applied to design and risk mitigation for the kitchen staff as well as risk mitigation to reduce pollutants and odors emitted to the outside. The primary role of kitchen exhaust hoods is to remove the contaminants and excess heat from the cooking process in order to provide a safe environment for the kitchen staff. The engineer has the task of selecting the correct hoods to provide for the lowest design airflow, control system to optimize the exhaust airflow when the cooking appliances are operating in different states (off, idle or cooking), and efficiently manage the replacement air into the kitchen space to replace what is being exhausted in a manner that maintains optimal comfort conditions.
The aspect of design is how to best manage the risks associated with grease buildup in the ductwork and apply technologies that can mitigate grease and odor emissions from the cooking process to the atmosphere – some of these can be applied in the exhaust hoods and others are typically employed in a pollution control unit downstream of the hood systems. Common technologies employed include ultraviolet lamps, ozone generators, electrostatic precipitators, media filters and odor absorbing compounds such as activated carbon.
This workshop will discuss the design process and technologies that can be used to minimize the energy impact and manage the risks associated with cooking effluents in the kitchen and emitted to the atmosphere.
Presentation 2: Nanotechnologies encompass all the methods used to produce, handle and characterize matter on the nanoscale, hence implying the use of nanomaterials.
Processes generating nanomaterials unintentionally can lead to a large variety of airborne and deposited particulate chemicals that are potentially hazardous for workers. Manufactured nanomaterials can also cause air pollution issues during reception and storage of raw materials, packaging and shipment of finished products and possible transfer of intermediate products. Additional pollution sources include usage of nanomaterials, their incorporation into various matrices, machining of composites containing them, cleaning and upkeep of workplaces and equipment and waste disposal.
After exploring the characteristics and the behavior of airborne nanomaterials, best practices for assessing and controlling risks from exposure to nanoparticles will be presented.