PEMP2004 – Industrial Engineering Economic Analysis
Semester – I | Credits: 3 | L-T-P: 3-0-0
Department of Project Engineering & Management
INDUSTRIAL ENGINEERING ECONOMIC ANALYSIS
Integrated Academic Assignment
M.Tech Level – Analytical, Technical & Research-Based Study
1. Introduction
Industrial Engineering Economic Analysis is an interdisciplinary field that combines industrial engineering principles with economic decision-making techniques to improve industrial productivity, operational efficiency, quality, profitability, and sustainability.
Modern industries operate in highly competitive global environments where organizations must:
- reduce production costs,
- improve quality,
- optimize manpower,
- increase productivity,
- minimize waste,
- and maximize profit.
Industrial Engineering provides scientific tools for:
- work optimization,
- process improvement,
- facility planning,
- systems analysis,
- productivity enhancement,
- and economic evaluation.
Economic analysis helps industries evaluate:
- investment decisions,
- project feasibility,
- replacement analysis,
- cost-benefit analysis,
- and resource allocation.
Thus, Industrial Engineering Economic Analysis acts as the backbone of efficient industrial management and sustainable industrial growth.
2. Productivity
2.1 Concept of Productivity
Productivity is the ratio of output produced to input utilized.
It measures how effectively resources such as:
- labor,
- materials,
- energy,
- machines,
- capital,
- and technology
are converted into useful products or services.
Basic Productivity Formula
Example
If a factory produces 2000 units using 100 labor-hours:
Types of Productivity
| Type | Formula | Purpose |
|---|---|---|
| Labor Productivity | Output / Labor Input | Worker efficiency |
| Machine Productivity | Output / Machine Hours | Machine performance |
| Material Productivity | Output / Material Used | Material utilization |
| Capital Productivity | Output / Capital Invested | Financial efficiency |
| Total Factor Productivity | Output / Total Inputs | Overall efficiency |
2.2 Productivity Improvement Factors
Major Factors Affecting Productivity
| Factor | Industrial Impact |
|---|---|
| Technology | Faster and accurate production |
| Automation | Higher output with less labor |
| Worker Skill | Improved efficiency |
| Training | Reduction in errors |
| Facility Layout | Reduced movement time |
| Maintenance | Reduced machine breakdown |
| Motivation | Better employee performance |
| Management | Efficient coordination |
| Quality Control | Lower rejection rate |
| Lean Manufacturing | Waste reduction |
Industrial Facts
- Proper work study improves productivity by 15–35%
- Preventive maintenance reduces breakdowns by 40–60%
- Scientific facility layout reduces movement cost by 30–50%
- Automation can increase production efficiency by 20–70%
2.3 Productivity Appraisal
Productivity appraisal is the systematic evaluation of organizational performance.
Objectives
- Increase output
- Reduce production cost
- Improve quality
- Eliminate waste
- Improve resource utilization
- Increase profitability
2.4 Productivity Analysis Approaches
(A) Kurosawa Structural Approach
Kurosawa proposed a multi-factor productivity structure.
Main Components
- Labor Productivity
- Capital Productivity
- Material Productivity
- Energy Productivity
Structure Diagram
INPUTS
(Labor, Material, Energy, Capital)
↓
PRODUCTION
↓
OUTPUT
↓
PRODUCTIVITY INDEX
Advantages
- Comprehensive analysis
- Multi-dimensional evaluation
- Better management decisions
(B) Lawlor’s Approach
Lawlor focused on human-centered productivity.
Main Elements
- Motivation
- Leadership
- Organizational climate
- Employee participation
Importance
Human resources are considered the most important productivity factor.
(C) Gold’s Approach
Gold emphasized:
- economic efficiency,
- cost reduction,
- and profitability optimization.
Economic Productivity Formula
(D) Quick Productivity Appraisal (QPA)
QPA is a rapid productivity assessment technique.
QPA Procedure
DATA COLLECTION
↓
PRODUCTIVITY MEASUREMENT
↓
PROBLEM IDENTIFICATION
↓
CORRECTIVE ACTION
↓
PERFORMANCE IMPROVEMENT
(E) Inter-Firm Comparison (IFC)
Inter-Firm Comparison compares industrial performance among firms.
Parameters
- Cost
- Efficiency
- Profitability
- Machine utilization
- Product quality
Benefits
- Identifies best practices
- Encourages healthy competition
- Improves industrial standards
3. Work Design
Work design improves human efficiency, ergonomics, and productivity.
3.1 Work Study
Work study is a scientific technique for improving work efficiency.
Components
WORK STUDY
|
-------------------------
| |
METHOD STUDY WORK MEASUREMENT
3.2 Method Study
Method study analyzes work procedures to eliminate unnecessary operations.
Objectives
- Simplify work
- Reduce fatigue
- Improve workflow
- Save time
- Increase productivity
Method Study Procedure
SELECT
↓
RECORD
↓
EXAMINE
↓
DEVELOP
↓
INSTALL
↓
MAINTAIN
3.3 Work Measurement
Work measurement determines the standard time for performing a task.
Standard Time Formula
Efficiency Formula
3.4 Time Study
Time study measures the time required to complete a task.
Steps in Time Study
- Select job
- Divide into elements
- Observe time
- Rate performance
- Calculate normal time
- Determine standard time
Example Table
| Worker | Observed Time | Rating (%) | Normal Time | |---|---|---| | A | 10 min | 110 | 11 | | B | 12 min | 100 | 12 | | C | 11 min | 105 | 11.55 |
3.5 Work Sampling
Work sampling statistically measures activity percentages.
Applications
- Machine utilization
- Idle time analysis
- Worker efficiency
- Delay analysis
3.6 Process Analysis
Process analysis improves operational workflow.
Tools
- Flow process chart
- Operation chart
- Process mapping
- Flow diagram
4. Facility Layout
Facility layout refers to the physical arrangement of:
- machines,
- departments,
- equipment,
- storage,
- and services.
4.1 Principles of Facility Planning
| Principle | Objective |
|---|---|
| Minimum Movement | Reduce transport cost |
| Smooth Flow | Continuous production |
| Flexibility | Future expansion |
| Safety | Worker protection |
| Space Utilization | Efficient area usage |
| Coordination | Better communication |
4.2 Types of Facility Layout
| Layout | Characteristics | Application |
|---|---|---|
| Product Layout | Sequential arrangement | Automobile industry |
| Process Layout | Functional grouping | Job shop |
| Fixed Position Layout | Product stationary | Shipbuilding |
| Cellular Layout | Group technology | Flexible manufacturing |
Product Layout Diagram
RAW MATERIAL
↓
MACHINE 1
↓
MACHINE 2
↓
MACHINE 3
↓
FINISHED PRODUCT
Process Layout Diagram
DRILLING
|
TURNING
|
WELDING
|
ASSEMBLY
4.3 Material Flow Patterns
Types
- Straight Line Flow
- Circular Flow
- U-Shaped Flow
- Zig-Zag Flow
U-Shaped Flow Diagram
INPUT ↓
PROCESS
OUTPUT ↑
Advantages
- Better supervision
- Reduced movement
- Space saving
4.4 Material Handling Systems
Material handling involves:
- movement,
- storage,
- control,
- and protection of materials.
Objectives
- Reduce handling cost
- Improve safety
- Minimize damage
- Increase efficiency
Material Handling Equipment
| Equipment | Application |
|---|---|
| Conveyor | Continuous transport |
| Forklift | Heavy load movement |
| Crane | Vertical lifting |
| Hoist | Lifting operation |
| AGV | Automated transport |
5. Value Engineering
Value Engineering (VE) improves product value by analyzing functions and reducing unnecessary costs.
Value Formula
Objectives
- Reduce cost
- Improve quality
- Increase functionality
- Eliminate unnecessary expenditure
5.1 Function Analysis System Technique (FAST)
FAST identifies logical relationships between functions.
FAST Logic
WHY? ← FUNCTION → HOW?
Example
WHY?
Store Water
↓
FUNCTION
Water Tank
↓
HOW?
Metal Container
6. Systems Engineering
Systems Engineering is an interdisciplinary approach for managing complex industrial systems.
6.1 Components of Systems Engineering
PEOPLE + MACHINES + INFORMATION
↓
PROCESS
↓
OUTPUT
↓
FEEDBACK
Objectives
- System optimization
- Reliability improvement
- Better integration
- Efficient coordination
6.2 Management Information System (MIS)
MIS provides accurate information for decision-making.
Components
- Hardware
- Software
- Database
- Procedures
- Human Resources
Benefits
- Fast decisions
- Accurate information
- Better planning
- Efficient control
6.3 System Life Cycle
PLANNING
↓
ANALYSIS
↓
DESIGN
↓
DEVELOPMENT
↓
TESTING
↓
IMPLEMENTATION
↓
MAINTENANCE
Types of Maintenance
| Type | Purpose |
|---|---|
| Corrective | Fix faults |
| Preventive | Avoid breakdown |
| Adaptive | Environmental changes |
| Perfective | Improve performance |
7. Industrial Economic Analysis
Industrial economic analysis evaluates financial feasibility and profitability.
7.1 Total Cost Formula
Where:
- TC = Total Cost
- FC = Fixed Cost
- VC = Variable Cost
7.2 Break-Even Point (BEP)
Example
If:
- Fixed Cost = ₹100000
- Selling Price = ₹50/unit
- Variable Cost = ₹30/unit
Then:
7.3 Economic Decision Tools
| Tool | Purpose |
|---|---|
| NPV | Investment evaluation |
| IRR | Rate of return |
| Payback Period | Recovery time |
| Benefit-Cost Ratio | Economic comparison |
| Sensitivity Analysis | Risk evaluation |
8. Industrial Problems, Causes & Solutions
| Problem | Cause | Solution |
|---|---|---|
| Low Productivity | Poor planning | Training & automation |
| Worker Fatigue | Bad ergonomics | Work redesign |
| Machine Breakdown | Poor maintenance | Preventive maintenance |
| High Waste | Improper handling | Lean manufacturing |
| Production Delay | Inefficient layout | Facility redesign |
9. Modern Industrial Engineering Technologies
| Technology | Application |
|---|---|
| Artificial Intelligence | Predictive maintenance |
| IoT | Smart factories |
| Robotics | Automated production |
| ERP | Resource planning |
| Digital Twin | Process simulation |
| Data Analytics | Performance optimization |
10. Industrial Engineering Applications
| Industry | Application |
|---|---|
| Automobile | Assembly line balancing |
| Construction | Project scheduling |
| Healthcare | Hospital management |
| Logistics | Supply chain optimization |
| Manufacturing | Productivity improvement |
11. Advantages of Industrial Engineering Economic Analysis
- Improves productivity
- Reduces industrial cost
- Enhances quality
- Optimizes resource utilization
- Improves industrial safety
- Reduces waste
- Increases profitability
- Supports sustainable development
- Improves decision-making
- Enhances global competitiveness
12. Conclusion
Industrial Engineering Economic Analysis is essential for modern industries because it integrates:
- productivity engineering,
- economic evaluation,
- systems analysis,
- facility planning,
- work design,
- and value engineering
into a unified scientific framework.
The subject helps industries:
- optimize resources,
- reduce production cost,
- improve operational efficiency,
- enhance quality,
- and achieve sustainable industrial growth.
Modern industries increasingly combine:
- Industrial Engineering,
- Artificial Intelligence,
- Automation,
- Lean Manufacturing,
- Data Analytics,
- and Industry 4.0 technologies
to achieve global industrial excellence and economic competitiveness.
13. References
- Industrial Engineering and Production Management – Martand Telsang
- Work Study – ILO Publications
- Industrial Engineering and Management – O.P. Khanna
- Value Engineering – Lawrence D. Miles
- Systems Engineering and Analysis – Blanchard & Fabrycky
- Productivity Management – Joseph Prokopenko
- Operations Management – Heizer & Render
- Engineering Economy – Sullivan, Wicks & Koelling
