Q4 Estimate the energy content of a solid waste sample with the composition below and what is the content on a dry basis and on ash free dry basis? Component Percent by mass Energy kJ/kg Food waste Paper Cardboard Plastics Garden trimming 15 45 10 10 10 Moisture content% 70 6 5 2 60 4,650 16,750 16,300 32,600 6.500

Q4 Estimate the energy content of a solid waste sample with the composition below and what is the content on a dry basis and on ash free dry basis? Component Percent by mass Energy kJ/kg Food waste Paper Cardboard Plastics Garden trimming 15 45 10 10 10 Moisture content% 70 6 5 2 60 4,650 16,750 16,300 32,600 6.500

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Mechanical Processes

In civil engineering, the materials have to undergo a series of manufacturing processes before using them in construction and structural applications. These manufacturing processes form the foundation stone of mechanical processes. Some of the civil engineering materials such as bars, metallic beams, metallic columns, surveying equipment, earthmovers, overhead cranes, structural and construction components, and even cement that is the most fundamental construction component need to undergo different manufacturing processes before they are ready to use. These processes are mechanical.

Question

Q4 Estimate the energy content of a solid waste sample with the composition
below and what is the content on a dry basis and on ash free dry basis?
Component
Percent by mass
Energy kJ/kg
Food waste
Paper
Cardboard
Plastics
Garden trimming
Wood
Tin cans
Total
15
45
10
10
10
5
5
100
Based on 100 kg sample of waste
Moisture content%
70
6
5
2
60
20
3
4,650
16,750
16,300
32,600
6,500
18,600
700

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