Design of R & Ac detail syllabus for Mechanical Engineering (Refrigeration And Ac) (106), M scheme is taken from TNDTE official website and presented for diploma students. The course code (32481), 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.
For all other ref & ac 6th sem syllabus for diploma m scheme tndte you can visit Ref & AC 6th Sem Syllabus for Diploma M Scheme TNDTE Subjects. For all other Elective Theory II subjects do refer to Elective Theory II. The detail syllabus for design of r & ac is as follows.
Rationale:
To design and selection of machines used in refrigeration and air conditioning as per specific requirements.
Objectives:
- To understand the basic concept of conduction, heat transfer through slabs and pipes
- To understand the basic concept of convection, heat transfer in laminar and turbulent flow
- To understand radiation, heat exchanger and working heat exchanger
- To learn about system components, selection and design of compressors and condensers
- To learn about selection of cooling towers, expansion devices and design of ducts
Unit 1
For complete syllabus and results, class timetable and more pls download iStudy. Its a light weight, easy to use, no images, no pdfs platform to make students life easier.
Unit 2
Convection
Convection – convective heat transfer coefficient – types of convection natural convection – forced convection-definition only-Rayleigh number-Grashoff number – only definition-problems on natural convection heat transfer and problems on forced convection heat transfer (both laminar flow & turbulent flow) only on flat plate. Newton’s law of convection -Reynolds number – Prandtl number – Nusselt number (definition only) -Laminar flow – Turbulent flow – (definition only) simple problems to find heat transfer using forced convection – Natural convection (definition) -Simple problems to find heat transfer in vertical pipes and vertical plates- internal and external flow.
Unit 3
Radiation and Heat Exchanger
(A ) Radiation :
Radiation – Reflection, Absorption & transmittance of Radiation – Black body concept – Grey body concept – No problem -No derivation.
(B ) Heat Exchanger :
Introduction – Mean temperature difference -parallel flow – counter flow – cross flow heat exchanger, LMTD & NTU methods of derivation for counter flow – simple problems on Heat exchanger – Temperature distribution in condenser & evaporator -simple problems
Unit 4
For complete syllabus and results, class timetable and more pls download iStudy. Its a light weight, easy to use, no images, no pdfs platform to make students life easier.
Unit 5
Duct Design
Duct layouts – perimeter systems, extended plenum system, arrangement for commercial and residential applications -classification of duct system – single duct system, dual duct systems – dual duct system combined with induction system, return duct systems. Air distribution systems – upward air distribution system for theatre, over head distribution system, ejector air distribution system, factors to be considered for- throw or blow, drop, entrainment or induction ratio, spread. Types of supply air outlets – grill outlets, slot diffuser, ceiling outlets, perforated ceiling – insulation – thermal and acquastic Basic principles of air flow in ducts – energy equation, total pressure, static pressure, velocity pressure, fan total pressure, fan static pressure, fan velocity, pressure, frictional losses, friction chart, dynamic losses in elbows in sudden enlargements, in contractions, in suction and discharge openings, in fittings.
Text Books:
- Heat and Mass Transfer by SACHDEVA
- Heat and Mass Transfer by DOMKUNDWAR
- Refrigeration and Air-conditioning by Arora and Domkundwar Danpat & Rai Sons Publications
Reference Books:
For complete syllabus and results, class timetable and more pls download iStudy. Its a light weight, easy to use, no images, no pdfs platform to make students life easier.
For detail syllabus of all other subjects of BE Ref & Ac, M scheme do visit Ref & Ac 6 syllabus for M Scheme.
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