2.3. Tom's engineering wants to improve productivity, they are looking at material handling systems, and the cells are supported by a fleet of Forklift trucks. The average travel distance per delivery will be 900 m loaded and the average empty travel distance will be 900 m. The fleet must make a total of 66 deliveries/hr. Loading takes 0.68 min and unloading times is 0.50 min and the speed of the vehicles = 350 m/min. speed of the forklift truck when loaded is 350m/min and when empty is 420 m/min Assume the traffic factor for the system = 0.89, availability = 0.58, and efficiency = 76%. Determine the following: 2.3.1. Ideal cycle time per delivery 2.3.2. The resulting average number of deliveries/hr. that a forklift truck can make 2.3.3. How many trucks are required to accomplish the 60 deliveries/hr.?

2.3. Tom's engineering wants to improve productivity, they are looking at material handling systems, and the cells are supported by a fleet of Forklift trucks. The average travel distance per delivery will be 900 m loaded and the average empty travel distance will be 900 m. The fleet must make a total of 66 deliveries/hr. Loading takes 0.68 min and unloading times is 0.50 min and the speed of the vehicles = 350 m/min. speed of the forklift truck when loaded is 350m/min and when empty is 420 m/min Assume the traffic factor for the system = 0.89, availability = 0.58, and efficiency = 76%. Determine the following: 2.3.1. Ideal cycle time per delivery 2.3.2. The resulting average number of deliveries/hr. that a forklift truck can make 2.3.3. How many trucks are required to accomplish the 60 deliveries/hr.?

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter5: Separation Processes

Section: Chapter Questions

Problem 5.14P: Two materials, A and B, are to be separated using two unit operations, 1 and 2. The feed has 10...

See similar textbooks

Similar questions

/Abridge has been in use for twelve years at the following conditions: 1- during the first two years it has carried five milions cars and one hundered thousend lorries 2- during the followed four years it has carried fifteen milions cars and two hundered thousend lorries 3- during the followed two years it has carried ten mmilios of cars only 4- during the last four years it has carried one hundered thousend lorries only The amplitude stress of cars is 108 cycles and 106 cycles for lorries Calculate the fatique life of bridge
An asphalt plant can produce 300 tph. A project requires paving individual 10-ft lanes with a 12 in. lift averaging 115 lb/sy-in. What average paver speed will match the plant production? How many 20-ton dump trucks will be required if the total hauling cycle time is 40 min?
An asphalt plant can produce 360 tph. A project requires paving individual 11 ½ ft lanes with a 2-in lift averaging 110 lb/sy-in. What average paver speed will match the plant production? The haul road limits are 15 tons per dump truck. How many trucks will be required if the total hauling cycle time is 55 min?
The Union Manufacturing Company is producing two types of products: A and B. The demand forecasts, batch size, and time standards follow in table 2: Table No 2 Product A Product B Demand forecast (units/yr) 1,000 4,000 Batch size (units/batch) 20 10 Processing time (hr/unit) 3.2 4.5 Setup time (hr/batch) 10 20 Both products are produced on the same machine, called Mark I. i) What is the total number of hours required of Mark I equipment for the next year? ii) The company works 250 days per year and operates two shifts, each covering 8 hours. If a 15 percent capacity cushion is maintained, how many hours of capacity can the company expect from each of its Mark I machines?
Question 2: You have to transport 120 000 tons of bulk from Rio de Janeiro to Dhank (Oman) via the port of Sohar in containers. This bulk cargo has a S.G. (Specific Gravity) of 0,70. The internal measures of the container are: In feet Length Width Heigh 20ft container 19’7” 8’ 8’6” 40ft container 39’7” 8’ 9’6” The price for a 20ft container from Rio to Sohar is EURO 1400,- The price for a 40ft container from Rio to Sohar is EURO 1520,-- Max. payload for both a 20ft and 40ft container is 28 tons Post haulage between Rotterdam and Dhank (Oman) is EURO 150,-- per 20ft or 40ft container. What type of container will you choose for this concept and why? a) Volume calculation b) Maximum payload calculation c) Price per ton calculation d) Choice of container with justification
You are a project manager on a construction project that is located 500 kms away from your barracks. Your team is composed of 41 persons including you. Going to the site, you are allowed to use 7 vehicles. Some of the vehicles can hold 7 people each, and the rest can hold 5 people each. Assuming all the vehicles are filled to capacity, and all the vehicles have designated drivers that are included in your team. a. Exactly how many of the vehicles can hold 7 people? b. Exactly how many of the vehicles can hold 5 people?
A power shovel is fitted with an engine of 150 f.w.h.p. It operates on full load for 6 minutes followed by 8 minutes of idling at one-third power. Its hourly utilization is for 3 cycles. What is its utilization factor?
In a truck and shovel operation, the time for a truck to position itself at the shovel and be loaded are 0.50 minute and 3 minutes respectively. It then takes the truck 10 minutes to haul the ore, dump it at the coarse ore bin, and return to the shovel. How many trucks do you need to keep the shovel busy with a little waiting time for the trucks?
1. A certain material having a specific gravity of 3.52 in a 250 mL beaker was found to have weigh 484 g. What is the porosity of the material? a. 0.68 b. 0.38 c. 0.45 d. 0.29 2. The width of an apron conveyer with a capacity of 75 tons/hr and speed of 50 A. 220 mm B. 370 mm C. 070 mm D. 460 mm 3. The diffusivity of water in air at 10 deg. F and 1 atm in cm2/sec is A. 0.256 B. 0.273 C. 0.404 D. 0.581
(a) Explain and sketches the types of incidents for the activities of loading and unloading
Two materials, A and B, are to be separated using two unit operations, 1 and 2. The feed has 10 tons/h A and 4 tons/h B. The split (fraction of material rejected by each operation) is given in Table P5-14. a. Which sequence of operations, (l?2) or (2?1), will yield the greatest recovery of material A? b. What will be the purity of material A using that sequence? c. What will be the efficiency of separation for the entire process train with regard to material A using the Worrell-Stesed equation?
Assuming you are working for Toronto International Freight Forwarder located at 1234 American Drive, Mississauga, Ont. L4V 2V3 and you have the following 3 shipments that you would like to consolidate and ship to your overseas agent-European Freight Forwarder located at 345 Queen St, London, UK L5M 2V3 via port of Montreal to London before end of August. INCOTERM used is CIP London. Shipment#1 Commodity: Auto brake part Pieces: 60 Weight: 450 KGM/crate Dim: 47”x44”x50” each crate Special loading instructions: keep upright Shipment#2 Commodity: wine glass Pieces: 48 skids Weight: 100 KGM/Skid Dim: 59”x29”x38” / skid Special loading instructions: Fragile, keep upright, top-load only Shipment#3 Commodity: Plush polar bears Pieces: 108 cartons loose Weight: 5 KGM/carton Dim: 30”x26”x25” /carton Special Loading Instructions: keep upright, top-load only, max stack of 4 cartons high. Required: Based on information provided, answer below questions: 1. Determine how many and types of…