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Refrigeration and Air conditioning

Introduction to Refrigeration and air conditioning Refrigerationisaprocessofachievingandmai ntainingalowtemperaturebelowthatofsurrou ndingsWhich of the following can be called as a Refrigeration process??a)Coolingofhotingotfrom10000 Ctoroomtempb)Coolingofapotofwaterbymixin gitwithalargeblockoficec)Coolingofhumanb eingsusingaceilingfand)Coolingofhotwater bymixingitwithtapwatere)Coolingofwaterby creatingvacuumoveritf)Coolingofahotcupof coffeebyleavingitonatableSYLLUBUSMODULE 1 Introduction , Airrefrigerationsystems-ReversedJoulecyc le,Aircraftrefrigerationsystems, 2 Vortextuberefrigeration-Verylowtemperatu rerefrigerationsystems(conceptonly).Adia baticdemagnetizationofparamagneticsalts. methodsofimprovingCOPofsimplecycle-super heating,undercooling,Liquidsuctionheatex changer, 3 Refrigerantsandtheirproperties-Eco-frien dlyRefrigerants,mixedrefrigerants,select ionofrefrigerantsfordifferentapplication s.

humidifiers. Year round air conditioning. AC system controls - thermostat and humidistat. •Air distribution systems - duct system and design - Air conditioning of restaurants, hospitals, retail outlets, computer center, cinema theatre, and other place of amusement. Industrial applications of air conditioning.

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MULTI-STAGE VAPOUR COMPRESSION REFRIGERATION …

www.rajagiritech.ac.in

•A multi-stage system is a refrigeration system with two or more low-side pressures. •Multi-stage systems can be classified into: a) Multi-compression systems b) Multi-evaporator systems c) Cascade systems, etc. •Two concepts which are normally integral to multi-pressure systems are, i) flash gas removal, and ii) intercooling.

  Refrigeration, Compression, Compression refrigeration

MODULE 5 SHEET METAL OPERATIONS

www.rajagiritech.ac.in

Sheet bending Sheet bending is defined as the straining of the metal around a straight axis. During bending operation, the metal on the inner side of the neutral plane is compressed, and the metal on the outer side of the neutral plane is stretched. Bending causes no change in the thickness of the sheet metal.

  Sheet, Metal, Bending, Sheet metal, Sheet bending sheet bending

Radiography Testing - Rajagiri School of Engineering ...

www.rajagiritech.ac.in

applications including medicine, engineering, forensics, security, etc. •In NDT, radiography is one of the most important and widely used methods. •Radiographic testing (RT) offers a number of advantages over other NDT methods, however, one of its major disadvantages is the health risk associated with the radiation.

  Testing, Engineering

REPORT (2014-2017) DEPARTMENT OF ELECTRICAL & …

www.rajagiritech.ac.in

development in the particular area. Figure 3: Process of filling gaps in syllabus Syllabus Subject teachers Analysis by course experts Course outcome & its correlation with programme outcomes Gaps in syllabus identified Assessment committe Department Advisory Board

  Development, 2017, Programme, Teacher

DESIGN OF MACHINE ELEMENTS - Rajagiri School of ...

www.rajagiritech.ac.in

Lateral rigidity: Ability to resist deflection under the action of external forces ... angular misalignment •Absorbs vibrations •Used for transmitting high torques. Flexible Coupling: Animation Department of Mechanical Engineering 23. …

  Deflection, Angular

DESIGN OF MACHINE ELEMENTS - Rajagiri School of ...

www.rajagiritech.ac.in

Screw Threads: Standards Department of Mechanical Engineering 7 B.S.W thread: Symmetrical V thread with thread angle 55 deg. Used in bolts and screwed fastenings B.A thread: B.S.W threads with fine pitches. Instruments and other precision works American national standard thread: Flat crest and roots. General

  American, National, Screw, Thread, Screw thread, American national

TYPES OF GRINDING WHEELS

www.rajagiritech.ac.in

Surface grinding machine Machine may be similar to a milling machine used mainly to grind flat surface Basically there are four different types of surface grinding machines characterized by the movement of their tables and the orientation of grinding wheel spindles •Horizontal spindle and reciprocating table

  Machine, Wheel, Machine machine

BASICS OF HEAT TRANSFER - Rajagiri School of Engineering ...

www.rajagiritech.ac.in

Understand the basics of Heat pipe, Boiling and Condensation[3] 5. ... This happens from solids, liquids and gases. ... The mechanism of heat flow by radiation consists three distinct phases: 1. Conversion of thermal energy of the hot source into electromagnetic waves.

  Phases, Basics, Liquid, Sage, Solid, Liquids and gases

FORGING

www.rajagiritech.ac.in

Roll forging In this process, the bar stock is reduced in cross-section or undergoes change in cross-section when it is passed through apair of grooved rolls made of die steel. This process serves as the initial processing step for forging of parts such as connecting rod, crank shaft etc.

  Forging

Gas Turbine Combustion Chamber

www.rajagiritech.ac.in

→Combustion in the normal, open cycle, gas turbine is a continuous process in which fuel is burned in the air supplied by the compressor; an electric spark is required only for initiating the combustion process, and thereafter the flame must be self-sustaining. →Combustion of a liquid fuel involves the mixing of a fine spray of droplets with

  Combustion

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Therefore, air-conditioning chilled water systems are required to operate throughout the year to maintain the comfort condition in the commercial buildings, hotels, hospitals, industrial buildings etc. Central air-conditioning plant is the single

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Indoor Air Quality in Commercial and Institutional Buildings

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Dedicated Outdoor Air Systems - Trane

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  System, Distribution, Energy, Star, Energy star, Air distribution systems

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Conditioning, Systems, Commercial, Air conditioning, Indoor Air Quality, Air Systems, Trane, Air Systems Trane, 8. Air Distribution Systems, Energy Star