# Ventilation and Climate Control

- Institution: IIT Kharagpur
- Department: Metallurgy and Material Science
- Teacher: Prof. Paluchamy B
- Level: Undergraduate
- Language: English
- Subjects: Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/113105001)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/113105001)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

The course “Ventilation and Climate Control” focuses on the principles and practices of controlling air quality, heat, and environmental conditions in underground mines. It covers psychrometry, human thermoregulation, heat, dust, gases in mines, air cooling systems, airflow mechanics, mine fans, and ventilation simulation and planning. Emphasis is placed on mine safety, statutory compliance, and energy-efficient ventilation design. The course combines fundamental theory with practical examples relevant to modern underground mining operations and emerging concepts such as ventilation optimisation and ventilation-on-demand.

Intended audience: UG Students

Prerequisites: Students are expected to have completed basic undergraduate-level courses in Engineering Mathematics and introductory Mining Engineering subjects. Prior exposure to Fluid Mechanics, Thermodynamics, and Underground Mining Methods will be advantageous; however, it is not compulsory, as the necessary fundamentals will be introduced within the course.

## Lectures

1. [Lecture 01 : The Subsurface Environment and the Need For Ventilation](https://invisiblenetwork.ai/learn/nptel/113105001/134b1e529281) (YouTube)
2. [Lecture 02 : Mine Gases : Properties and Hazards](https://invisiblenetwork.ai/learn/nptel/113105001/f3a5d96d5ae7) (YouTube)
3. [Lecture 03 : Gas Emission and Management](https://invisiblenetwork.ai/learn/nptel/113105001/c3708cd9ee76) (YouTube)
4. [Lecture 04 : Mine Dust Characteristics and Health Hazards](https://invisiblenetwork.ai/learn/nptel/113105001/ba69f58b2112) (YouTube)
5. [Lecture 05 : Airborne Dust Measurement and Control](https://invisiblenetwork.ai/learn/nptel/113105001/e13243fe468b) (YouTube)
6. [Lecture 06 : Introduction to Psychrometry](https://invisiblenetwork.ai/learn/nptel/113105001/01d8ca7055f3) (YouTube)
7. [Lecture 07 : Psychrometric Processes and Charts](https://invisiblenetwork.ai/learn/nptel/113105001/400d72663d1f) (YouTube)
8. [Lecture 08 : Heat and Moisture Exchange in Mine Airways](https://invisiblenetwork.ai/learn/nptel/113105001/ddceebe3d661) (YouTube)
9. [Lecture 09 : Human Thermoregulation and Physiological Responses](https://invisiblenetwork.ai/learn/nptel/113105001/e8678c932aa8) (YouTube)
10. [Lecture 10 : Heat Stress Indices and Guidelines](https://invisiblenetwork.ai/learn/nptel/113105001/ccb8e47cb9dd) (YouTube)
11. [Lecture 11: Mine Heat Sources - I](https://invisiblenetwork.ai/learn/nptel/113105001/9b60acdee830) (YouTube)
12. [Lecture 12 : Mine Heat Sources - II](https://invisiblenetwork.ai/learn/nptel/113105001/c38498d0aa47) (YouTube)
13. [Lecture 13 : Strata Heat and Geothermic Gradients](https://invisiblenetwork.ai/learn/nptel/113105001/38b4c7ebaf5a) (YouTube)
14. [Lecture 14 : Rock-to-Air Heat Transfer](https://invisiblenetwork.ai/learn/nptel/113105001/bd340c2a11ae) (YouTube)
15. [Lecture 15 : Mine Climate Simulation and Heat Removal Capacity](https://invisiblenetwork.ai/learn/nptel/113105001/73febdf5ed87) (YouTube)
16. [Lecture 16 : Principles of Mine Refrigeration](https://invisiblenetwork.ai/learn/nptel/113105001/767ae782bde7) (YouTube)
17. [Lecture 17 : Components in Mine Cooling System](https://invisiblenetwork.ai/learn/nptel/113105001/0222dcf88205) (YouTube)
18. [Lecture 18 : Direct and Indirect Heat Exchangers in Mine Cooling](https://invisiblenetwork.ai/learn/nptel/113105001/1d1dc83d7c0c) (YouTube)
19. [Lecture 19 : Mine Cooling System Design and Layouts](https://invisiblenetwork.ai/learn/nptel/113105001/d827eb8072b5) (YouTube)
20. [Lecture 20 : Specialized Mine Cooling Systems and Emerging Technologies](https://invisiblenetwork.ai/learn/nptel/113105001/65b95454bb02) (YouTube)
21. [Lecture 21 : Continuity, Pressure and Energy in Mine Airways](https://invisiblenetwork.ai/learn/nptel/113105001/50be2ac81b12) (YouTube)
22. [Lecture 22 : Flow Regimes and Turbulence in Mine Airways](https://invisiblenetwork.ai/learn/nptel/113105001/06736aa890dd) (YouTube)
23. [Lecture 23 : Frictional Pressure Drop and the Square Law](https://invisiblenetwork.ai/learn/nptel/113105001/b8cdf4820b85) (YouTube)
24. [Lecture 24 : Pressure Loss in Airways - I](https://invisiblenetwork.ai/learn/nptel/113105001/730e9b0123d6) (YouTube)
25. [Lecture 25 : Pressure Loss in Airways - II](https://invisiblenetwork.ai/learn/nptel/113105001/a2487dcdd37a) (YouTube)
26. [Lecture 26 : Series and Parallel Ventilation Network](https://invisiblenetwork.ai/learn/nptel/113105001/282add32f1d3) (YouTube)
27. [Lecture 27 : Natural and Controlled Splitting of Airflow](https://invisiblenetwork.ai/learn/nptel/113105001/33cd3bf8536a) (YouTube)
28. [Lecture 28 : Ventilation Control Devices and Leakage](https://invisiblenetwork.ai/learn/nptel/113105001/a2aa228edc11) (YouTube)
29. [Lecture 29 : Ventilation Networks and Direct Application of Kirchoff's Laws](https://invisiblenetwork.ai/learn/nptel/113105001/3b2832f8c96d) (YouTube)
30. [Lecture 30 : Solution of Ventilation Networks By The Hardy Cross Method](https://invisiblenetwork.ai/learn/nptel/113105001/9579cfcce43e) (YouTube)
31. [Lecture 31 : Auxiliary Ventilation - Fans, Ducts and Leakage](https://invisiblenetwork.ai/learn/nptel/113105001/e8a44b88c909) (YouTube)
32. [Lecture 32 : Forcing, Exhausting and Overlap Auxiliary Ventilation Systems](https://invisiblenetwork.ai/learn/nptel/113105001/12421837e45d) (YouTube)
33. [Lecture 33 : Auxiliary Ventilation Design Checks and Recirculation Hazards](https://invisiblenetwork.ai/learn/nptel/113105001/7d2dfbb732ae) (YouTube)
34. [Lecture 34 : Natural Ventilation Pressure in Mines](https://invisiblenetwork.ai/learn/nptel/113105001/c4cc2ecd1358) (YouTube)
35. [Lecture 35 : NVP from Thermodynamic Considerations](https://invisiblenetwork.ai/learn/nptel/113105001/3b2d1c1fe9b9) (YouTube)
36. [Lecture 36 : Mine Fans, Fan Pressure and Fan Classification](https://invisiblenetwork.ai/learn/nptel/113105001/ffee1793d6fa) (YouTube)
37. [Lecture 37 : Basic Impeller Theory and Energy Transfer in Mine Fans](https://invisiblenetwork.ai/learn/nptel/113105001/44cbebe8014c) (YouTube)
38. [Lecture 38 : Fan Characteristic Curves, Performance, Stall and Efficiency](https://invisiblenetwork.ai/learn/nptel/113105001/4c8cbb44bc0f) (YouTube)
39. [Lecture 39 : Fan-Mine Interaction and Operating Point](https://invisiblenetwork.ai/learn/nptel/113105001/52a1eb1297b1) (YouTube)
40. [Lecture 40 : Fan Laws](https://invisiblenetwork.ai/learn/nptel/113105001/4387dc291513) (YouTube)
41. [Lecture 41 : Fan Duty Control and Operational Management](https://invisiblenetwork.ai/learn/nptel/113105001/7761facc8a84) (YouTube)
42. [Lecture 42 : Fans in Series and Parallel](https://invisiblenetwork.ai/learn/nptel/113105001/deedce8e0862) (YouTube)
43. [Lecture 43 : Main Fan Selection and Life-of-Mine Duty Planning](https://invisiblenetwork.ai/learn/nptel/113105001/a5143c7a49e1) (YouTube)
44. [Lecture 44 : Fan Installation, Pressure Recovery and Field Performance](https://invisiblenetwork.ai/learn/nptel/113105001/c49570149a9a) (YouTube)
45. [Lecture 45 : Integrated Fan-System Operation and Booster Fans](https://invisiblenetwork.ai/learn/nptel/113105001/0cd0926a2a69) (YouTube)
46. [Lecture 46 : Air Velocity and Quantity Surveys](https://invisiblenetwork.ai/learn/nptel/113105001/ffac746186a6) (YouTube)
47. [Lecture 47 : Pressure Quantity Surveys : Principles, Methods and Calculations](https://invisiblenetwork.ai/learn/nptel/113105001/048c25a0812e) (YouTube)
48. [Lecture 48 : Psychrometric and Climatic Surveys](https://invisiblenetwork.ai/learn/nptel/113105001/d7de1b72819c) (YouTube)
49. [Lecture 49 : Gas and Dust Surveys](https://invisiblenetwork.ai/learn/nptel/113105001/fd5a423e5872) (YouTube)
50. [Lecture 50 : Integrated Ventilation Survey and Model Calibration](https://invisiblenetwork.ai/learn/nptel/113105001/25a74bd23ea9) (YouTube)
51. [Lecture 51 : Systems Analysis and Ventilation Planning Criteria](https://invisiblenetwork.ai/learn/nptel/113105001/2adc3f6b1f2e) (YouTube)
52. [Lecture 52 : Coal Mine Ventilation Strategies](https://invisiblenetwork.ai/learn/nptel/113105001/86bc64dab0d7) (YouTube)
53. [Lecture 53 : Metal Mine Ventilation Strategies](https://invisiblenetwork.ai/learn/nptel/113105001/9975c2a677f0) (YouTube)
54. [Lecture 54 : Steps in Design of a New Mine Ventilation System](https://invisiblenetwork.ai/learn/nptel/113105001/8156adcaf09d) (YouTube)
55. [Lecture 55 : Life-of-mine Ventilation Planning and Scenario Analysis](https://invisiblenetwork.ai/learn/nptel/113105001/fc961ed8d1ca) (YouTube)
56. [Lecture 56 : Ventilation Energy and Cost Analysis](https://invisiblenetwork.ai/learn/nptel/113105001/5dc28765bd46) (YouTube)
57. [Lecture 57 : Economic Sizing of Airways and Shafts](https://invisiblenetwork.ai/learn/nptel/113105001/6268067a0fca) (YouTube)
58. [Lecture 58 : Ventilation-on-demand and Energy Optimization](https://invisiblenetwork.ai/learn/nptel/113105001/18b739db211a) (YouTube)
59. [Lecture 59 : Mine Fire Ventilation and Emergency Airflow Dynamics](https://invisiblenetwork.ai/learn/nptel/113105001/b527644a1449) (YouTube)
60. [Lecture 60 : Sealed Areas, Fire-Gas Interpretation, Re-entry](https://invisiblenetwork.ai/learn/nptel/113105001/2b7543b5707f) (YouTube)