07441nam a22002297a 4500 792 792 OSt 20190507111446.0 170630b xxu||||| |||| 00| 0 eng d COE24 National Instructional Media Institute (NIMI) 36280 24/04/2017 06/06/17 BSDU English BSDU 621.58 COL National Instructional Media Institute (NIMI) Cold Storage, Ice-plant and Ice-candy plant : Sector Advanced Module on Refrigeration & Air Conditioning (For Centres of Excellence) Chennai National Instructional Media Institute (NIMI) 2010,c2010 306 Contents : Practical -Identify the components ,controls and safety devices in cold storage plant -Check the functions of controls and safety devices -Operate and maintain cold storage plant -Service cold storage plant -Record all operating parameters of cold storage system -isolate the compressor from the drive system -Remove cold storage compressor from foundation -Dismantle the cold storage compressor -Check and rectify the problem in valve assembly -Check the faults and rerectify in piston assembly -Check the piston rings and butt clearance -Check and service the bearings -Identify tha parts of capacity controls -Dismantle the capacity control -Service and assemble the capacity control -De-scale the water cooled condenser -Check the water cooled condenser -Check the water flow and different pressure in water cooled condenser -Service oil separator -Check and service water regulating valve -Check the cooling tower system before servicing -Service the cooling tower -Check and service cooling tower fan motor -Identify the parts of a centrifugal pump -Dismantle the centrifugal pump -Repair and re-assemble the pump -Make G i water piping for a condenser water system -Replace the faulty pipe line and arrest the leak -Fabricate refrigerant piping using copper tubing -Test and adjust thermostatic expansion valve -Check and set low pressure cutout -Check and set high pressure cutout -Check and service solenoid valve -Service forced air evaporator unit -Check and service the water defrost system -Check and service the electrical defrost -Check and service the hot gas defrost system -Service Brine Chiling Evaporator -Arrest leaks at brine tank -Rectify insulation faults -Flush out nitrogen through liquid line in heat ex- changer -Flush out nitrogen through suction line in heat ex-changer -Assess the performance of liquid suction heat ex-changer -Check the oil pressure safety switch -Check water flow switch -Test lub oil pressure switch -Trace the electrical wiring of cold storage -Trace the electrical wiring of cold storage -Test the motor starter contacts -Pump down the system -Pressure test with dry nitrogen in the cold storage system -Trace the leak and rectify the leak in the cold storage system -Vacuumise the cold storage system -Charge refrigerant in the cold storage system -Operate the cold storage plant with safety -Check the operation of electrical and mechanical component -Check lubrication system of oil circulation -Trouble shoot and repair ice plant for "compressor cut off " through HP cut out -Trouble shoot and repair ice plant for the symptom "Poor cooling " Trouble shoot and repair ice plant for the symptom "Frequently trips " -Trouble shoot and repair for the symptom "Frosting on thermostatic expansion valve "in Ice plant -Replace the electrical component in ice candy plant -Rectify insulation faults in ice candy plant -Replace the defective agitative fan motor in ice candy plant -Check specific gravity of brine solution and add chemical in ice candy plant -Service ice candy plant -Check gas leak in Ice candy plant -Rectify the leak in the system -Pressurise and test leak in the complete system -Evacute the ice candy plant -Charge the gas to ice candy plant's system -Recover CFC refrigerant from ice candy plant -Replace the suitable components for retrofitring -Flush out ,pressurise and leak test the system -Charge equired amount of 134a gas to the system -Pump down rhe cold storage system -Pressurise and leak test the system -Vacuumise and topup refrigerant -Pump down the ice plant system -Replace the oil strainer and lub oil -Test the thermostat of ice plant -Service the water flow switch in ice plant -Service the oil safety of ice plant -Check the ice plant H/P cutout switch -Check the ice plant L/P CUTOUT switch -Check the essential jobs in routine maintenance of cold storage and ice plant -Check the essential jobs in preventive maintenance (Cold storage ) -Check the essential jobs in operational maintenance in cold storage plant -Check the safety measures while the plants is in operation -Check the reading and maintain the loq book for cold storage plant :: Theory :: -Food preservation -Spoilage of food -Food transporatation -Details of cold storage -Product load calcution -Performance of reciprocation compressor -Volumetric efficiency -Commercial reciprocation compressor -Classification of commercial compressor -Reciprocating compressor -parts and construction -Compressor load and unloading mechanism -Compressor lubrication -Properties of lubricant -Oil separator -Condenser capacity -Water Regulating Valves -Cooling tower fan assembly -Types of cooling Tower -Cooling tower approach -Circulating pumps in commercial refrigeration system -Centrifugal pump service and maintenance -Water line piping -Chilled water tank and pipes -Refrigerant control devices -Safety devices -Controls -Type of cooling Coils -Defrosting in a cold storage -Defrost system in cold storage -Secondary refrigerants -Water and brine chillers -suction -Liquid heat ex changers -Functions of suctions-liquid heat exchangers -Applications of suction-liquid heat exchangers -Electro-Mechanical -Controls for cold storage -High pressure saferty cutout ,safety valve and oil pressure cutout -Humidity control in cold storage -Cold storage electrical wiring -Method of pressure testing and leak detection -Method of evacuation and gas charging -Properties of R12 and NH3 -Cold storage plant operation -Freezing and frozen storage -Common troubles and remedies -Ice plant -introduction and types -Principle of ice plant -Ice plant -Functions -Different types of ice manufacturing and applications -Ice candy plant service and maintenance -Trouble shooting and repair of ice candy plant -'Brine leak " in ice cream (candy) Storage Plant -Controls of ice candy unit -Agitator fan motor and electrical components in ice cream storage plant -Secondary refrigerants used in ice candy plant -Ice cream storage plant and refrigerant 134a -Retrofitting in combination coolers -Transferring refrigerants to shell and tube condenser -Pumping down process -Study of ice plant controls -Ice plant wiring -Preventive maintenance -Components maintenance -Electrical maintenance -Central Air-Conditioning plants -Seasonal shut -down and maintenance Refrigeration & Air Conditioning : Centres of Excellence Cold Storage & Ice Plant DGT, MSDE, Govt of India ddc BK 0 0 ddc 0 0 COE BSDU BSDU SDL 2017-06-30 145.00 0 621.58 COL 003635 2020-02-12 00:00:00 2017-06-30 BK 0 0 ddc 0 0 COE BSDU 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