1. Design and Optimization of Cooling System in locomotives
Presented by:
Momin Fahim
Dalvi Faisal
Siddiqui Saifali
Siddiqui Abdul Rauf
Guided by :
Prof Jawed Shaikh

2. Introduction
Locomotive WDG-3A

3. Existing Layout of Cooling System

4. Problem Definition
Existing system is purely Mechanically driven Radiator fan
Losses in ECC and RAGB
Power Consumption = 80 HP
Maintenance Cost = Rs 2,50,000 per annum
Initial Cost = Rs 5,00,000/-

5. Proposed Layout

6. Methodology followed to reach the desired objective
NEMA

7. Parameter Obtained in Load Box Section
Generator Voltage
Generator Current
Mass flow rate of fuel
Exhaust Gas Temp
Inlet water Temp of radiator
Outlet Water Temp of radiator
Air outlet Temp

8. Heat Balance Sheet Brake Power = 38.78% Radiation and conduction= 15%
Cooling Water = 22.69%
Exhaust Gases = 23.49%

9. Design of Fan Calculation of mass flow rate of air = 40.77 kg/sec
Axial Flow Fan
Centrifugal Fan
Axial-Centrifugal Fan
Roof Ventilators
Cross Flow Blowers
Vortex or Regenerative Blower
Fan Selected:- Axial Flow Fan

10. According to our application (Radiator cooling) we need to select Axial Flow Fan but Axial Flow Fan is also subdivided into three categories i.e.
Propeller Fan
Tube axial Fan
Vane axial fan
Type Selected:- Axial Flow Propeller fan
Due to less hub to tip ratio, weight is less

11. Selection of Motor INSULATION CLASS – CLASS H COOLING METHOD - IC 411
TYPE OF MOTOR - Slip ring Induction Motor
PROTECT FEATURES – IP55

12. 2D model of Radiator as per the dimensions provided by Indian Railway

13. Mesh view of Radiator model in ANSYS.

14. Result and Conclusion