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Energy for Buildings
Published in Jacqueline A. Stagner, David S-K. Ting, Green Energy and Infrastructure, 2020
Elevators are now obligatory in many jurisdictions, driven to a large extent by legal accessibility requirements for users with mobility issues. The regulations usually apply to new building construction and buildings undergoing extensive renovations (Canadian Consulting Engineer 2015). In most instances, the regulations are quite complex, especially where exemptions are applicable. The main point is that as global urbanization and population increases the power for elevators will become a not-to-be ignored factor in determining Building energy requirements. There could also be some contributions to residential Building energy use in high-income countries as their populations continue to age and seniors, wishing to remain in their residences, compensate for losses of agility and mobility by installing personal elevators (Canada Mortgage and Housing Corporation 2018). However, it is not just existing home owners seeking elevator options, there appears to be a growing trend to consider fitting elevators in new homes, especially in urban areas, where building lots are becoming smaller, and to compensate, homes with an increasing number of floors are being constructed, termed building-up rather than building-out (Kinbar 2019). The energy needs for single-family residential elevators, especially in high-income countries, while not of current significance may be in the future.
What are architectural building systems?
Published in Samuel L. Hurt, Building Systems in Interior Design, 2017
All elevators and lifts are rated by their weight-carrying capacity, which is directly related to the car size. Small car = low capacity and large car = high capacity. Typical elevator capacities start at 2,500 pounds; hospital elevators that are large enough to move patients in their beds are usually 6,000 pounds; over-sized elevators (usually in industrial facilities) can be 10,000 pounds, 15,000 pounds, or even larger. A residential elevator might be rated for only 800 pounds or so.
Electrical Systems for Commercial Buildings
Published in Moncef Krarti, Energy-Efficient Electrical Systems for Buildings, 2017
For the office building, an elevator with a capacity of 1600 kg (3500 lb) is specified (Allen and Jano, 2007) since a low-to-medium speed is acceptable for a 3-story building. With a speed of 61 m/min (200 ft/min), the elevator would travel from the basement to the third floor (about 13 m or 42 ft) in approximately 13 s. The elevator motor specifications are selected as summarized in Table 8.11 (Baldor, 2015).
Thermo-mechanical modeling and transient analysis of frictional braking of elevator safety gear
Published in Journal of Thermal Stresses, 2020
Aizhong Wu, Xi Shi, Lin Weng, Dingyu Hu
Elevator safety gear can be mainly divided into two types, i.e., instantaneous safety gear and progressive safety gear. Instantaneous safety gear features a short braking distance and a strong impact on the cabin, which is only used for freight elevators whose rated speed is less than 0.63 m/s [1]. For passenger elevators, especially for a high-speed elevator, progressive safety gear should be used. Progressive safety gear is characterized by elastic spring clamping, long braking distance, and a stable slippage. Once progressive safety gear is actuated, the kinetic energy of the elevator cabin is mostly dissipated through the friction heat between the brake shoe and the guide rail. From this point of view, progressive safety gear is essentially a friction brakes.
Short-term office building elevator energy consumption forecast using SARIMA
Published in Journal of Building Performance Simulation, 2020
Ane Blázquez-García, Angel Conde, Aitor Milo, Roberto Sánchez, Irantzu Barrio
Energy efficiency is an issue of high priority and importance in order to get a cleaner and more sustainable future. Elevators are estimated to use about 3% to 5% of the overall energy consumption of a building (Sachs 2005; De-Almeida et al. 2012). Even if its energy use appears to be small, systems can often be made more efficient, leading to a considerable reduction in global consumption and economic savings.