EEE 4130 Electrical Services in Iulding Assignment 2 Answer all questions. Each question carries 20 marks Write down all your solutions on A4 sized papers Submit this assignment on or before: XX Apr 2022 QI. A 20-storey office building has a typical floor height of 3.8 m. It has an area of 1,500 ml each floor and the population density of the building is 1 person per 10 m'. Each of the lifts that served the building has a rated speed of 3.5 m/s and the Up-peak interval of the building should be s 25 seconds. The Percentage of Population served in 5 minutes should be 2 15 Given that: Door opening time: 15: Door closing time: 2 s: Single-floor flight time: 3.5$ Passenger transfer time. 2s (Note: passenger transfer time passenger loading time passenger unloading time)/2] w Calculate the Up-Peak Handling Capacity[UPPHC), and hence the Contract CapacityCC). (W) Split the lifts system into two groups if the calculated Contract Capacity (CC) in partis larger than 25 Then by using Table 01, find out the average number of stops (S) and the average highest call reversal floor (H). (ili) Calculate the Round Trip Time (RTT). (M) Calculate the total number of lifts required. (W) Calculate the real Up Peak Interval (UPPINT) and real Percentage of Population (POP) handled Suggested equations: RTT=2Ht, +(+1), +2P, UPPINT RTT/L P=0.8(CC) UPPHC = (5x60 (0.8XCC)/UPPINT SPOP (UPPHC/Population) x 100% EEE4130 Electrical Services in Building Ne Wanderungen " N. LE W 4 50 73 9:09 9223 2292 29:22 1919 39999 3:59 E&E BEEZ: crea 22923 588 3987: ERE 33222 22999 39919 23222 33333 922 BELZE BEEEE EEEE: ECC + cett certa BETEE EEEE EEEE: cated 22903 93222 22: 1343 927: sana ZEER GOED tece 16 n 40 11 CE 06 20 15 12 Dj Fu THE NH3 where CM R LO 33 69 55 11 3 79 * TE VE EN Ezer est: crece | 2012 21:22: EEEE EEEE EEEEE EEEEE EEEE: EEEEE EEEE: PEEEE BELLE ECCE EEEEE gun"yuuuu 02328 2:221 2:23 9A3 1812 BREEZ ERESE FEE II FI! 11 911 ETEE BED ERC S TE w 193 71 20 264 ILD 1832 2.1 135 11 12 13 167 102 IT Vorst FRE Table 1