32452: Air Conditioning Ref & AC 5th Sem Syllabus for Diploma TNDTE M Scheme

Air Conditioning detail TNDTE Diploma syllabus for Mechanical Engineering (Refrigeration And Ac) (RA), M scheme is extracted from TNDTE official website and presented for diploma students. The course code (32452), 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 ref & ac 5th sem syllabus for diploma m scheme tndte you can visit Ref & AC 5th Sem Syllabus for Diploma M Scheme TNDTE Subjects. The detail syllabus for air conditioning is as follows.

Rationale:

To understand the basics of Psychrometry, Psychrometric processes, human comforts. To acquire knowledge about cooling load calculations, duct design and process calculation using psychrometric chart

Objectives:

1. To understand basic concept of Psychrometry ( air properties ) & measuring instruments.
2. Learn about Psychrometric processes such as heating, cooling, humidification, dehumidification and mixing of air streams
3. Basic concept of human comfort condition and cooling load calculation
4. To acquire knowledge about application of air conditioning
5. To know about basics of duct systems and duct design

Unit 1

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Unit 2

Psychrometric processes

Psychrometric chart – representation of psychrometric properties – DBT in specific humidity, constant RH lines, constant specific volume lines, constant enthalpy lines, constant WBT line and use of comfort cycle. Psychrometric processes – mixing of air streams, sensible heating, sensible cooling, cooling with dehumidification, cooling with adiabatic humidification of air, adiabatic chemical dehumidification, humidification by steam injection, heating and humidification – By pass factor -temperature distribution of air passing through coil, sensible heat given out by coil derivation of relationship between by pass factor and number of rows, apparatus dew point-Simple problems 17

Unit 3

Indoor Air Quality

Human comfort: Requirements of comfort air conditioning – Oxygen supply, heat removal,moisture removal, air motion, purity of air- adaption of human body to variable climatic conditions, human body as thermal machine, thermal efficiency of human body, metabolic heat production, convective heat loss from body, heat lost by evaporation, radiation heat loss from body – ventilation standards for different A/C conditions – Effect of heat on work performance. Comfort and comfort chart – effective temperature, factors governing optimum effective temperature 17

Unit 4

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Unit 5

Air Conditioning Systems

Types of air conditioning systems- Windows, Split, packaged, centralized- installation procedure – selection of A/C systems -Central air conditioning system – components, capacity. considerations, advantages. Unitary air conditioning systems – classification, remote air conditioning unit system, self contained air conditioning unit, unitary system for multi storey buildings, advantages of unitary system over central air conditioning. Factory air conditioning system – economics of factory air conditioning system Summer air conditioning systems – for hot and dry climates with cooling coil and adiabatic humidification, capacity of cooling coil and humidifier -psychrometric processess involved, representation in psychrometric chart For hot and humid condition with cooling and heating coils, capacity of cooling coil and heating coil, representation in psychrometric chart. Summer air conditioning with single cooling coil and mixing with recirculated air, representation in psychrometric chart. Summer air conditioning with air washer/desert cooler, representation in psychrometric chart. Winter air conditioning for severe winter with double reheat coils, humidifier and recirculated air, psychrometric processess involved, capacities of reheat coils and humidifier, representation in psychrometric chart. Year round air conditioning -components, psychrometric processess involved in summer and winter, working. 16

Text Books:

1. Refrigeration and Air-conditioning by Arora and Domkundwar Danpat Rai & Sons Publications

Reference Books:

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For detail syllabus of all other subjects of BE Ref & Ac, M scheme do visit Ref & Ac 5th Sem syllabus for M scheme.

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