DAGR was tasked with providing the LED lighting design and fixtures for a new pellet plant including all interior and exterior areas. Due to local bylaws, no spill light was allowed beyond the North, East and West property lines, requiring careful optic selection, and positioning and angling of fixtures. Below is an overall render of the outside areas of the site and one of the inside of the pellet building. On the following page is the top-down view with pseudo-colour where red represented the required illumination level. All light levels were specified such that they’d meet the requirement at end-of-life fixture output levels.
DAGR was approached by a customer to provide a lighting solution for their 110ft communications masts to enable them to also operate as light towers. The customer sought an LED solution as they not only provide excellent low-light performance, but also enable considerable fuel savings as gensets are used to power the masts. The fixtures selected for the project were the 400W MP700 Multi-Purpose light with a 60° optic and with a 20° optic (Images below on the left and right respectively). The 60° optic creates a greater beam width, allowing for a wider light distribution with a shorter range. The 20° optic has a much narrower distribution but has a much greater range.
DAGR was approached by a Pulp Mill to redesign the lighting in one of their pulp machine rooms. The existing lighting consisted of 50 x 1,000W Metal Halide fixtures mounted at ceiling height (42ft). Thermal analysis done during a site visit identified areas of high ambient temperatures in many of the existing fixture locations that would have been unsuitable for LEDs. As such, it was determined that the best course of action was to mount LEDs on the walls at 30ft where ambient temperatures were well within their operating range.
DAGR was also provided with a list of desired illuminance levels around which the new layout was designed. DAGR was able to meet all of the design criteria using wall-mounted 400W MP700 Multi-Purpose LEDs while also reducing the total fixture count by 4.
Ice Arenas are a good example of the varied benefits of both LED lighting and design. The client DAGR worked with in this particular case originally had 108 x 1,000W Metal Halide fixtures directed at the ice surface. Not only does upgrading to LEDs result in large lighting-based energy savings, but also reduces the thermal load on the ice due to the high operating temperatures of metal halides, generating further savings through lowered refrigeration demand.
Several different options were presented, with two of them included in the following pages. The layouts provide End-of-Life illuminance levels (at 70% Light Loss Factor (LLF)) designed to recommendations for Regional-Level Ice Hockey (500 lux), and Televised National-Level Ice Hockey (1,000 lux). Several renders of the 1,000 lux option are included below, as well as a pseudo-colour rendering of the ice surface with red representing the requirement of 1,000 lux.
When producing the lighting layout, factors such as reflections into the crowd and glare were taken into consideration. Each light was angled to make optimal use of its output and provide uniform illuminance across the ice surface. Through careful design, the lighting count was reduced from the original 108 x 1,000W Metal Halides to 74 x 400W MP700 DAGR LEDs for the 1,000 lux layout and 46 for the 500 lux layout.