Displaying items by tag: lighting
Lighting is an often overlooked but critical part of the cleanroom design process. A poorly lit cleanroom makes work difficult, and a cleanroom with energy inefficient lighting is not sustainably designed and increases energy costs. When designing a cleanroom, choosing lighting options that work for your application can also help control contamination and promote temperature control. Here are the cleanroom lighting options explained to help you in your cleanroom design project.
The first lighting option to consider is the type of lighting to use: incandescent, fluorescent, or LED. The chart below briefly explains how each of these types of lighting work, as well as their costs and benefits.
Incandescent lightbulbs are the traditional lightbulbs. They contain a capsule inside that holds gas around a wire filament, which went electricity is applied, gives off light. They give off heat as well as light, which makes them an inefficient light source and an energy waster. In fact, incandescent bulbs are banned in several countries. In addition to their inefficiency, the light they give off is often not bright or consistent enough for cleanroom applications.
Fluorescent lights work by ionizing mercury vapor inside a glass tube, which causes the gas’s electrons to emit UV light, which is converted to visible light by the coating of the glass tube. They’re available in the traditional long tubes as well as compact fluorescent lamps (CFLs), which are shaped like incandescent lightbulbs. They are more efficient than incandescent bulbs without being much more expensive and are appropriate for many cleanroom applications.
LED lights, which stands for Light Emitting Diodes, are the most energy-efficient lighting option. They create solid-state lighting by converting electricity directly into light, unlike incandescents and fluorescents. They tend to have a higher initial cost, but their efficiency offsets that cost. LED lighting is often ideal for cleanroom applications, as they do not produce any heat.
Also worth considering is natural lighting—you may want to evaluate whether is it possible and practical to incorporate windows into your cleanroom design. Natural light is free, but windows may come with some inefficiencies in terms of temperature control.
Lighting fixture options
There are a variety of fixture options for cleanroom lighting, including
- Fluorescent ceiling modules — these fluorescent ceiling modules are similar to what you imagine when you picture fluorescent lights: modules that house long fluorescent light tubes. Modules designed specifically for cleanrooms are dust, corrosion, and water resistant and house up to for T8 light tubes.
- LED light panels — LED light panels provide bright, optimal lighting for cleanroom spaces, without crevices or seams that can house particulate matter or contaminants.
- LED light strips — LED strips attach directly to the T-bar of the ceiling grid, keeping them out of the way of ceiling filters and allowing for unobstructed air flow.
- Teardrop lights — teardrop lights are designed for cleanrooms that require whole-ceiling filter coverage, and they minimize obstruction of airflow by hanging down from the ceiling. These are best in cleanrooms with plenty of overhead space since they do hang down from the ceiling.
- Flow through modules — flow through lighting modules use fluorescent tube lights that are placed directly under the filter system, without blocking airflow. This is a good option when your application requires efficient use of overhead space.
Intensive care is normally the entry point for a critically ill or injured patient into the hospital. Visual examination plays a major role in deciding the right treatment. This demands a high level of general illumination as well as good colour rendering.
Lighting is an important consideration at the design phase of a cleanroom and the choices you make should compliment your overall envelope solution. Here we will talk you through some of the options available.
Everyone knows what watts are, but there are other measurements for lighting, including how much light you need, how intense it should be, and how far you need it to go. These measurements are:
Cleanroom or clean room environments are extremely specialized with requirements for each technology brought into the space. Cleanroom lighting is no exception. But what is a cleanroom?
It's no mystery that cleanrooms present numerous challenges to designers who specify lighting systems. Cleanroom lighting will vary depending on the room's use, its classification and ceiling air supply configuration. In an ideal situation, lighting systems should provide good visibility and be designed with contamination control issues—electromagnetic field generation and cleanability—in mind. But before that can be achieved, a thorough examination of the basic fundamentals, illumination requirements, available styles and fixture construction must be undertaken.
The basic cleanroom fixture types are teardrop, recessed, surface mount and integral ceiling grid. The selection of fixture type usually depends on the cleanroom classification.
Contamination control is the primary design goal of any cleanroom. Any potential source of contamination into the cleanroom must be thoroughly evaluated and minimized. Lighting fixtures should be subjected to contamination evaluation. Unfortunately, there are no established standards to prequalify fixtures for a particular cleanroom class. The National Sanitary Foundation (NSF) does provide listing and testing of materials used in food, pharmaceutical, medical or other FDA applications. Fixtures used in these applications should be required to carry the NSF listing mark. Manufacturers often advertise fixtures as being suitable for cleanroom use with no data or standard qualifications to substantiate their claims.
Specifying lighting systems for cleanroom facilities requires considerations beyond energy and maintenance savings. While lighting for cleanrooms should be energy efficient and provide proper illumination for the task at hand, it is crucial that lighting coordinates with air-supply systems and minimizes any chances for contamination.
In clean rooms, precision matters. To prevent contamination, the materials, including lighting, must be germ free and the professionals who perform work in clean rooms must be able to conduct their business without introducing contamination into the environment. Cleanroom lighting must meet these rigorous requirements and facilitate the work conducted in the room.