Power Engineering (315371) MSBTE QuAn Question Answer Book

Description

QuAn Book – Power Engineering (315371)

The QuAn Book for Power Engineering (Subject Code: 315371) is a premium study material designed for MSBTE K-Scheme Diploma Engineering students. It provides a complete, topicwise question bank with model answers to help you score maximum marks.

Syllabus Coverage (MSBTE K-Scheme)

• Unit-wise Learning Content

  Unit – I Refrigeration

  1. 1.1 Definition of refrigeration, refrigeration effect, unit of refrigeration, coefficient of performance, air refrigeration, reverse Carnot cycle, Bell – Coleman cycle & its representation on P-V & T-S diagram.
  2. 1.2 Vapor Compression Refrigeration Systems (VCRS) : Basic components, flow diagram of the vapor compression cycle, working of VCRS, representation of the vapor compression cycle on P-H & T-S diagram, sub cooling and superheating, expression for refrigerating effect, work done and power required, coefficient of performance COP. (Simple numerical on VCRS)
  3. 1.3 Vapor Absorption Refrigeration System (VARS) : Principle of vapor absorption refrigeration system, basic components, construction and working of simple vapor absorption refrigeration system, comparison of VCRS and VARS. (No numerical on VARS)
  4. 1.4 Refrigerants : Definition, desirable properties of refrigerant, primary and secondary refrigerant, selection of refrigerant, concept of Global Warming Potential (GWP) , Ozone Depletion Potential (ODP).
  5. 1.5 Applications : Specification, construction and working of refrigerator, water cooler, ice plant, and cold storage.
  6. 1.6 Traditional methods of cooling used in ancient India (IKS). (No question to be asked)

  Unit – II Air Conditioning

  1. 2.1 Air conditioning : Definition, factors affecting comfort air conditioning, classification of air conditioning systems, comfort air conditioning and industrial air conditioning.
  2. 2.2 Psychrometry : Definition of dry air, moist air, saturated air, dry bulb temperature, wet bulb temperature, dew point temperature, absolute humidity, relative humidity, specific humidity, enthalpy of moist air. Psychrometric chart, use of psychrometric chart.
  3. 2.3 Psychrometric Processes : Sensible heating, sensible cooling, humification, dehumidification, heating and humidification, heating and dehumidification, cooling and humidification, cooling and dehumidification. Representation of the above process on a psychrometric chart. Sling psychrometer. (Simple numerical using psychrometric charts and tables)
  4. 2.4 Applications : Construction and working of window air conditioner, split air conditioner, 2/4-way ceiling mounted cassette air conditioner.

  Unit – III I.C Engine Testing and Pollution Control

  1. 3.1 Purpose of I.C. engine testing, I.C. engine testing norms. Definition & measurement of performance parameters like brake power, indicated power, frictional power, brake and indicated mean effective pressures, brake specific fuel consumption, brake thermal efficiency, indicated thermal efficiency, mechanical efficiency, and relative efficiency. Morse test, heat Balance sheet, (Simple numerical on the performance of I.C. engines, morse test & heat balance sheet)
  2. 3.2 Polluting emissions in S.I. & C.I engines and their effects on the environment. Controlling methods : Catalytic converters, Exhaust Gas Recirculation (EGR) . Standard pollution norms like EURO IV & VI, BS-VI. Engine Control Unit (ECU) : Working and Diagnostic procedure.

  Unit – IV Air Compressors

  1. 4.1 Function of air compressor, uses of compressed air, classification of air compressors. Construction and working of single-stage and two-stage reciprocating air compressors, screw compressor, centrifugal compressor, axial flow compressor. Comparison of rotary compressor with reciprocating air compressor.
  2. 4.2 Necessity of multi-staging, advantages of multi-staging, intercooling, representation of processes involved on P-V diagram, calculation of work done.
  3. 4.3 Specifications of air compressors, pressure ratio, compressor capacity, free air delivered, volumetric efficiency, isothermal efficiency. (Simple numerical on reciprocating air compressor)

  Unit – V Energy Efficiency in Air Compressor & Refrigeration and Air Conditioning

  1. 5.1 Air Compressor : Compressed air system components, need of energy management in compressed air systems, factors affecting efficient operation of compressed air systems, checklist for energy efficiency in compressed air systems.
  2. 5.2 Refrigeration & Air conditioning : Factors affecting performance and energy efficiency of refrigeration and air conditioning system, energy saving opportunities in refrigeration and air conditioning system.

Subject Code: 315371 | Subject: Power Engineering | Board: MSBTE | Scheme: K Scheme | Published by: ReemaS Edutech, Kolhapur