[HOSPITALITY/ENTERTAINMENT] KauaiMarriottResortandBeach Club | Lihue, Kauai, Hawaii
›› Retrofit Team Gas Technology Institute, Des Plaines, Ill., www.gastechnology.org Propane Education & Research Council (PERC), Washington, D.C., www.propanecouncil.org
›› Materials The Gas Technology Institute and PERC field-tested two 405-kilowatt 3412LE genera- tor sets, a heat-recovery system and a 244-ton absorption chiller at the resort to pro- vide the propane and lodging industries with data about the in-service performance of propane-fueled engine technology for continuous use in commercial combined heat and power and distributed generation applications.
Annual Savings from Operation $1,711,639 Annual Cost to Operate Annual Bottom-line Savings Estimated Payback
$1,531,713 $179,926 20 years
Demonstration Period Average Fuel Price $2,043,352
$1,470,498 $572,754 6.3 years
The new building cooling, heating and power system is integrated with the resort’s existing diesel-fired boilers, which now provide steam for laundry use and supplemen- tal domestic hot-water heating, and 450-ton electric chillers. To preserve the resort’s electric-rate structure, the system is sized to allow the resort to purchase electricity from the grid and use onsite generation only as a supplement to meet at least 50 percent of the resort’s daily electric load. The generator sets efficiently combust propane fuel to generate electricity, which is fed into a facility system that can provide power to the entire campus. Heat exchangers capture waste heat produced by the generators and transfer it to the
resort’s swimming pool, domestic hot-water system and absorption chiller. Any unrecovered waste heat is dumped to a 600-ton cooling tower. The hot water system uses the captured heat to heat water for domes- tic uses. The absorption chiller uses the captured heat to provide chilled water for a portion of the resort’s air conditioning. Switchgear and a utility transformer connect the system to the electrical grid. A web-accessible data-monitoring program measures the system’s overall mechanical and economic performance, collecting data at 15-minute intervals from approximately 50 instruments. The system’s energy input includes propane fuel (to drive the generators), parasitic load (electricity consumed by engine radiators, water pumps and the cooling-tower fan), and building heat that is picked up by the chiller cooling water return and transferred to the absorber evaporator. The system’s energy output in- cludes electricity produced by the generators, heat exhausted out the stacks, heat delivered to the hot-water system and the pool, and heat dumped to the cooling tower.
American Airlines Arena|Miami
›› Materials A Mediamesh screen, which is made of 3,400 square feet of a high-grade architec- tural woven stainless-steel mesh fabric embedded with linear tubes filled with LED nodes that provide pixels for displaying high-resolution digital imagery, provides visitors with unobstructed views from the interior and visually engaging digital media content on the exterior. Mediamesh can display any content that can be shown on a computer screen, requires little maintenance and uses one-sixth the amount of electricity of conventional LED boards.
›› The Retrofit Situated on Miami’s busy Biscayne Boulevard, overlooking Biscayne Bay, the American Airlines Arena hosts more than 1.3 million guests per year who attend concerts and family and sporting events. Committed to providing visitors with a dynamic and exciting entertainment experience, the HEAT Group commissioned a first-of-its-kind large-scale LED mesh media façade to be installed on the arena. Standing 42-feet high by 80-feet wide, Miami’s Mediamesh façade is four times the size of an average billboard.
The Miami Mediamesh screen is ¾-inch thick and 70 percent transparent so it blends with the arena’s architecture and is virtually unnoticed when it is turned off. However, when it is on, images can be seen in high-pixel resolution.