15MN61T: Mine Environment and Ventilation-II Mining 6th Sem Syllabus for Diploma DTE Karnataka C15 Scheme

Mine Environment and Ventilation-II detail DTE Kar Diploma syllabus for Mining Engineering (MN), C15 scheme is extracted from DTE Karnataka official website and presented for diploma students. The course code (15MN61T), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.

For all other mining 6th sem syllabus for diploma c15 scheme dte karnataka you can visit Mining 6th Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. The detail syllabus for mine environment and ventilation-ii is as follows.

Pre-requisites:

Basic knowledge in general Mining practices, Physics, Chemistry and Engineering drawing.

Course Objectives:

• To make familiar with the system of ventilation in underground Mines.
• To impart elementary knowledge regarding Natural ventilation.
• To make familiar with the distribution of air to ventilate underground Mines.

Course Outcomes:

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UNIT-1 MINE ENVIRONMENT

The objects of mine ventilation, causes of rise of temperature in mines, geothermal gradient, sources of heat in mine air, sources of moisture in mines, uses of thermometer in mining, humidity,Hygrometry,Calculation of relative humidity, Physiological effects of atmospheric conditions, Cooling power of a mine air and Kata thermometer. Effect of heat and humidity on the efficiency of mine worker.

UNIT-2 SYSTEMS OF VENTILATION

Downcast and Up-cast, natural ventilation, conditions favourable to natural ventilation, factors influencing the production of natural ventilation, limitations of natural ventilation, NVP, Motive column: derivations and numerical problems, Surface air conditioning plant and spot coolers: construction and working

UNIT-3 DISTRIBUTION OF MINE AIR CURRENT

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UNIT-4 MECHANICAL VENTILATION

Auxiliary ventilation: forcing, exhaust and overlap system. construction, working and installation of forward and backward bladed centrifugal fans, axial flow fan their relative advantages and disadvantages, Reversal of air current, Fan characteristic curves: Fans in series and parallel.

UNIT-5 VENTILATION SURVEY

Scope and importance of ventilation survey, pressure measuring instruments with sketch and procedure of using:

1. Barometer
2. Aneroid barometer
3. vertical manometer and inclined manometer and Pitot tube.

The procedure of using the following velocity measuring instruments:

1. Smoke and dust method.
2. Anemometer
3. Velometer.

The procedure of finding the quantity of air flow.

UNIT-6 MINE LIGHTINGS

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SUGGESTED LIST OF STUDENT ACTIVITIES

Note: Any one of the following activities or similar activities for assessing CIE (IA) for 05marks.

Students are grouped into batches and each batch should not have more than five students.

1. Each student should do any one of the following type activity or any other similar activity related to the course and before conduction, get it approved from concerned Teacher and HOD.
2. Each student should conduct different activity and no repetition should occur.

Make a Visit to any nearest mine or use the information obtained during the vocational training and Submit hand written report of 5 to 10 pages or ppts or sketches from the following topics or similar topics on:

• The principles of temperature and humidity contained in underground air.
• Application of the basic concepts of mine ventilation system and mine safety and the natural ventilation and its rule and condition.
• The distribution of air and its control on mine air under different situation.
• Provision of ventilation in any underground mine by artificial means.
• Analysing the underground quality and quantity of air.
• Analysing the different Mine lightings.

Note to IA verifier:

The following documents to be verified by CIE verifier at the end of semester

1. Blue books ( 20marks)
2. Student suggested activities report for 05 marks and assessed.
3. Student feedback on course regarding Effectiveness of Delivery of instructions & Assessment Methods.

ESSENTIAL READING

1. Elements of mining technology- Vol-2, D.J.Deshmukh
2. Mine fires, Rescue, Recovery and Inundation, M. A. Ramulu
3. Mine ventilation, S. Ghatak
4. Mine Environment and ventilation, G.B. Mishra
5. UMS Volumes

SUPPLEMENTARY READINGS

1. Mines Rescue rules
2. Mine ventilation by Hartman
3. Statham series
4. Mine management, Legislation and General safety by S.Ghatak
5. Mine environment and its control by G B Mishra
6. Mine Management by V.N.Singh
7. Industrial Management by O.P.Khanna
8. SME Mining Engineering Hand Book-Vol -I & Vol-II

LIST OF OPEN SOURCE SOFTWARE/LEARNING WEBSITE

1. http://en.wikipedia.org/wiki/Mining
2. www.youtube.com
3. http://www.mining-journal.com/
4. http://www.miningiq.com/
5. http://www.mining-technology.com/
6. www.nptel.com

Model Question Paper:

(CIE)

1. What is meant by the term geothermic gradient? Explain. Or What causes mine air to become humid?
2. Explain the purpose and mode of action of a hygrometer and the conclusions that may be drawn from its readings in a mine.
3. Write a note on Downcast and Up-cast ventilation. Or How does natural ventilation affect mine ventilation during different times of the day and different seasons?
4. If the mean UC temperature is 380C and that of the DC 280C, what is height of the motive column of air at the temperature of the DC if the mine is 400M deep? What is the equivalent natural ventilating pressure in mm of w.g. and Pascal’s? Assume an atmospheric pressure of 760mm at 6 half the depth of the downcast shaft.

Model Question Paper:

Part-A

1. Answer any 6 of the following 6×5=30 marks

1. What are the causes that attribute the high temperature in deep mines?
2. What is meant by the term geothermic gradient? Explain.
3. What causes mine air to become humid?
4. What are the methods for improving the cooling power of mine air?
5. Write a note on Downcast and Up cast ventilation
6. Explain with a neat sketch a Regulator
7. Carefully compare axial flow fan and centrifugal fans for main mine ventilation, stating their relative advantages and disadvantages.
8. What are the purposes of the gauzes in a flame safety lamp? How may they become ineffective?
9. Explain carefully what is meant by the terms- Conduction and Conviction of heat.

Part-B

Answer any 7 of the following 7×10=70 marks

1. Explain the purpose and mode of action of a hygrometer and the conclusions that may be drawn from its readings in a mine.
2. How hoes natural ventilation affect mine ventilation during different times of the day and different seasons?
3. If the mean UC temperature is 380C and that of the DC 280C, what is height of the motive column of air at the temperature of the DC if the mine is 400M deep? What is the equivalent natural ventilating pressure in mm of w.g. and pascals? Assume an atmospheric pressure of 760mm at half the depth of the downcast shaft.
4. Explain the ventilation of a face by brattice partitions
5. Explain with a sketch Air crossings
6. Make a neat sketch of an axial-flow main ventilating fan, showing plan and elevation with casing and evasee chimney.
7. Describe the advantages and disadvantages of forcing fan and exhaust fan
8. Sketch and describe an inclined manometer and explain its mode of action
9. Sketch and describe pitot tube and explain its mode of action
10. How will you carryout accumulation and percentage test of methane using Flame safety lamp.

For detail syllabus of all other subjects of BE Mining, C15 scheme do visit Mining 6th Sem syllabus for C15 scheme.

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