9.4.- REFRIGERATION

Refrigeration is a thermodynamic process that consists in lowering or maintaining the temperature of a space or body. The process lies in extracting heat from a cold source and transferring it to a hot source. Cooling fluids are used to transport the energy.

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The most widespread refrigeration system is the refrigeration cycle. This system follows a classic compression cycle:

  • Compression: the compressor transforms the electrical energy into heat and transfers it to a cooling fluid, raising its pressure and temperature.
  • Condensation: the refrigerant goes from gaseous state to liquid state in a condenser that gives heat to the hot source.
  • Expansion: the liquid expands, it is transformed into gas and cooled.
  • Evaporation: heat is absorbed from the cold source and it is transferred to the refrigerant.

The absorption cooling system also takes advantage of the refrigerant evaporation to absorb heat but does not use a compressor. In this cycle, the pressure difference is achieved by adding heat to a mixture of refrigerant and another substance, commonly water, which absorbs it. The refrigerant is usually ammonia or lithium bromide.

Thermoelectric cooling systems work with the Peltier effect. A Peltier heater is a solid-state heat pump that transfers heat from one side of the device to another, opposing the temperature gradient by consuming electrical energy.

The Vortex cooling system is the least widespread refrigerating machine due to its low performance. Compressed air is introduced tangentially into a vortex chamber, a cold air flow is formed in the center of the vortex, while the outer layer is heated. The cold air is extracted and can be used for cooling purposes.

The refrigeration systems are found in any conventional cold store or freezing chamber or for other applications that require low temperatures in a closed place within an environment at higher temperature.

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REFRIGERATION EQUIPMENT

1.- PHYSICS 2.- ELECTRONICS 3.- COMMUNICATIONS 4.- ELECTRICITY 5.- ENERGY 6.- MECHATRONICS & AUTOMATION 7.- MECHANICS 8.- FLUID MECHANICS 9.- THERMODYNAMICS & THERMOTECHNICS 10.- PROCESS CONTROL 11.- CHEMICAL ENGINEERING 12.- FOOD & WATER TECHNOLOGIES 13.- ENVIRONMENT 14.- BIOMEDICAL ENGINEERING LABORATORY ACCESSORIES CUSTOMIZED PILOT PLANTS
9.1.- FUNDAMENTALS AND BASIC CONCEPTS OF THERMODYNAMICS 9.2.- HEATING, VENTILATION, AIR CONDITIONING AND HOT WATER 9.3.- HEAT PUMPS 9.4.- REFRIGERATION 9.5.- THERMAL HYDRAULIC PIPING SYSTEM 9.6.- HEAT TRANSFER 9.7.- HEAT EXCHANGERS 9.8.- THERMAL MACHINES 9.9.- INTERNAL COMBUSTION ENGINES 9.10.- INSTALLATIONS AND MAINTENANCE
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COMPUTER CONTROLLED BENCH TOP COOLING TOWER - TTEC
  • TTEC
Available
11.1.7.- DRYING AND COOLING

TTEC

Computer Controlled Bench Top Cooling Tower

The Computer Controlled Bench Top Cooling Tower, "TTEC", includes a pump that impels hot water from a tank (with level switch and heating element) to the manifolds located at the top of the cooling tower. Water flow can be adjusted by a manual...
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BENCH TOP COOLING TOWER - TTEB
  • TTEB
Available
11.1.7.- DRYING AND COOLING

TTEB

Bench Top Cooling Tower

The Bench Top Cooling Tower, "TTEB", includes a pump that impels hot water from the tank (with level switch and heating element) to the manifolds located at the top of the cooling tower. Water flow can be adjusted by a manual needle valve.A...
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COMPUTER CONTROLLED REFRIGERATION CYCLE DEMONSTRATION UNIT - TCRC
  • TCRC
Available
9.4.- REFRIGERATION

TCRC

Computer Controlled Refrigeration Cycle Demonstration Unit

The Computer Controlled Refrigeration Cycle Demonstration Unit, "TCRC", allows the demonstration of vapour compression refrigeration and heat pump cycle with visual observation of all important processes.Thanks by utilising a non-toxic refrigerant...
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REFRIGERATION CYCLE DEMONSTRATION UNIT - TCRB
  • TCRB
Available
9.4.- REFRIGERATION

TCRB

Refrigeration Cycle Demonstration Unit

The vapour compression refrigeration and heat pump cycle is very important in food and drug preservation, air conditioning and heat pumps, as well as other industrial and commercial process.The Refrigeration Cycle Demonstration Unit, "TCRB",...
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COMPUTER CONTROLLED ABSORPTION REFRIGERATION UNIT - TRAC
  • TRAC
Available
9.4.- REFRIGERATION

TRAC

Computer Controlled Absorption Refrigeration Unit

The Computer Controlled Absorption Refrigeration Unit, "TRAC", designed by EDIBON, is a complete laboratory unit for the demonstration of absorption refrigeration.This unit is provided with a dual power source (heat source) of LPG and electricity....
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ABSORPTION REFRIGERATION UNIT - TRAB
  • TRAB
Available
9.4.- REFRIGERATION

TRAB

Absorption Refrigeration Unit

The Absorption Refrigeration Unit, "TRAB", developed by EDIBON, is a complete laboratory unit for the demonstration of absorption refrigeration.This unit is provided with a dual power source (heat source) of LPG and electricity. A pressure...
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COMPUTER CONTROLLED VORTEX TUBE REFRIGERATOR UNIT - TPVC
  • TPVC
Available
9.4.- REFRIGERATION

TPVC

Computer Controlled Vortex Tube Refrigerator Unit

The Computer Controlled Vortex Tube Refrigerator Unit, "TPVC", is a unit designed to study the physical, mechanical and thermodynamic characteristics of a vortex tube.This unit works with compressed air. The air, previously filtered to remove...
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COMPUTER CONTROLLED THERMO-ELECTRIC HEAT PUMP - TBTC
  • TBTC
Available
5.3.11.- OTHER NON-CONVENTIONAL SYSTEMS

TBTC

Computer Controlled Thermo-Electric Heat Pump

The Computer Controlled Thermo-Electric Heat Pump, "TBTC", allows the study of different phenomena in which heat and electricity take place (Thermoelectricity).Some of them are the Peltier effect, the Thomson or Lenz effect and the Seebeck effect....
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SIMPLE COMPRESSION REFRIGERATION CIRCUIT UNIT - TSCR
  • TSCR
Available
9.4.- REFRIGERATION

TSCR

Simple Compression Refrigeration Circuit Unit

The Simple Compression Refrigeration Circuit Unit "TSCR" represents the typical compression refrigeration system with compressor.The evaporator and the condenser have been designed as a copper pipe coil immersed in a water-filled tank, which...
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COMPUTER CONTROLLED VAPOUR-COMPRESSION REFRIGERATION UNIT - TRCVC
  • TRCVC
Available
9.4.- REFRIGERATION

TRCVC

Computer Controlled Vapour-Compression Refrigeration Unit

The Computer Controlled Vapour-Compression Refrigeration Unit, "TRCVC", allows the understanding of the vapor-compression refrigeration process by changing the operation of the different parts of the process, and to study the response of the...
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COMPUTER CONTROLLED CAPACITY CONTROL METHODS IN REFRIGERATION - THARA2C/1
  • THARA2C/1
Available
9.4.- REFRIGERATION

THARA2C/1

Computer Controlled Capacity Control Methods in Refrigeration

The Computer Controlled Capacity Control Methods in Refrigeration, "THARA2C/1", allows to study and to investigate several methods of capacity control. For this purpose a refrigeration circuit with two refrigeration chambers is available in which...
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COMPUTER CONTROLLED TWO DOORS DOMESTIC REFRIGERATION UNIT - TRD2PC
  • TRD2PC
Available
9.4.- REFRIGERATION

TRD2PC

Computer Controlled Two Doors Domestic Refrigeration Unit

The main element of the Computer Controlled Two Doors Domestic Refrigeration Unit, "TRD2PC", is a combifridge freezer with transparent panels to observe all the elements of a refrigeration cycle: compressor, filter,evaporator, condenser,...
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COMPUTER CONTROLLED CONTACT PLATE FREEZER - TPCC
  • TPCC
Available
12.1.- FOOD TECHNOLOGY

TPCC

Computer Controlled Contact Plate Freezer

The Computer Controlled Contact Plate Freezer, "TPCC", allow the student to freeze food products quickly by using an industrial freezing process. The unit includes a compression refrigeration circuit. It is based on mechanically forcing the...
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REFRIGERATION UNIT WITH DIFFERENT CAPILLARY TUBES - TCRCT
  • TCRCT
Available
9.4.- REFRIGERATION

TCRCT

Refrigeration Unit with Different Capillary Tubes

The Refrigeration Unit with Different Capillary Tubes, "TCRCT", designed by EDIBON, is clearly arranged and represents a typical compression refrigeration system with compressor.The main components of the unit are the hermetic compressor,...
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VORTEX TUBE REFRIGERATOR UNIT - TPVB
  • TPVB
Available
9.4.- REFRIGERATION

TPVB

Vortex Tube Refrigerator Unit

The Vortex Tube Refrigerator Unit, "TPVB", is a unit designed to study the physical, mechanical and thermodynamic characteristics of a vortex tube. This unit works with compressed air. The air, previously filtered to remove impurities, passes...
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