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More information on Refrigeration Engineering

More information on Refrigeration Engineering

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Refrigeration Engineering in researchRefrigeration Engineering and its measurementRefrigeration Engineering and its application

Refrigeration Engineering

In thermodynamics, coldness is an energetic imbalance. In engineering, this imbalance results from the forced exchange of heat between two places. Refrigeration engineering deals with various procedures to produce coldness in many different areas of application.
The basic procedures of refrigeration engineering are thermodynamic circle procedures, the energetic efficiency of which is constantly being improved thanks to modern refrigeration engineering. Especially important are compression refrigeration systems on the one and absorption refrigeration systems on the other hand. The energy that is needed for cooling is brought up via mechanical force in compression refrigeration systems, whereas in absorption refrigeration systems this heat energy is used. Refrigeration energy is used on a daily basis in many different fields. The food industry, air conditioning, medical technology and logistics are barely imaginable without it. If you don't find the refrigeration engineering instruments you are looking for, please contact us and we will help you find the best solution to suit your needs by calling our offices on: UK customers +44(0) 23 809 870 30 / US customers (561) 320-9162 and our technical staff will advise you regarding our measuring instruments. Our engineers and technicians will be happy to help you with the field of refrigeration engineering, and of course, with the other products in the field of regulation and control, and scales and balances of PCE Instruments Ltd.

Refrigeration Engineering for daily applicationPractical application of Refrigeration Engineering Refrigeration Engineering for chemical purposes

Refrigerating Machines

Refrigerants

Cooling Appliance

Refrigeration Engineering: Refrigerating Machines Refrigeration Engineering: Refrigerants Refrigeration Engineering: Cooling Appliance

Refrigerating Laboratory Devices

Refrigerators

Ultra-Deep Refrigerators

Refrigeration Engineering: Refrigerating Laboratory Devices Refrigeration Engineering: Refrigerators Refrigeration Engineering: Ultra-Deep Refrigerators

Compression refrigeration systems: A classical use of this refrigeration engineering procedure is the refrigerator. In this coldness-machine the cooling agent initially absorbs heat energy from the inside of the refrigerator on a low energy-level (low pressure, low temperature) and thereby evaporates. By means of the additional compression of the cooling agent, its energy density rises to a higher energy level (high pressure, high temperature). This energy can then be dispensed to the surrounding area via a condenser. During the process, the cooling agent condenses and is then relaxed via an expansion valve until it reaches its initial energy-level once again (low pressure, low temperature). Many procedures in refrigeration engineering are based on this principle. An evening cooling in this procedure, however, can only be guaranteed through a constant supply of electrical or mechanical energy in the compressor.

Absorption refrigeration engineering: A different procedure is used in absorption refrigeration engineering. Instead of mechanical energy, thermal energy is used. In the cooling circuit of the cooling-machine, a pair of materials is used that is completely soluble over a wide temperature range, such as water in certain saline solutions. In a first step, the gaseous cooling agent (water) is condensed. Hereby heat can be dispensed into the surrounding area. Then the liquid water is vaporised in a low pressure area. The needed vaporisation energy is taken from the cooling agent and thus coldness develops. In a further low pressure area, the steam is cooled and while dispensing heat returns to its fluid state and is solved with the salt. The watery saline solution is separated via external heat supply, whereby pure water as a cooling agent and a concentrated saline solution as a solvent are regained. The circular process is completed and can begin anew. In this method of refrigeration engineering, the coldness is thereby created under a steady supply of thermal energy.

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Below you will find an overview of the different product groups of measuring instruments

Absolute Humidity Meters
Accelerometers
Alert Meters
Air velocity meters
Analyzers (Colour)
Analyzers (Combustion)

Analyzers (Gas)
Analyzers (Lan)
Analyzers (Noise)
Analyzers (Oxygen)
Analyzers (Ozono)

Anemometers
Barometers
Balances
Borescopes
Cable detectors (electrical)
Calibrators
Calipers
Cameras (Infrared Thermal Imaging)
Capacitance Meters
Coating Thickness Meters
Chlorine Meters
Clamp Meters
Climate Meters
Colour Meters
Clamp Meters
Conductivity Meters
Contact Thermometers
Current detectors

Data Loggers
Differential Pressure Meters
Digital Multimeters
Densimeters
Detectors (Humidity, Radiation, Voltage)
Dose Meters (Noise)
Durometers

Dust particle analyzers

Electric Tester
Endoscopes
Fiberscopes
Flow Meters Air
Flow Meters Gas
Force Gauges (digital)
Function generators
Frequency Meters
Gas Detector
Gaussmeters
Handheld Tachometers
Hardness Meters
Humidity Testers (Building material)
Hygrometers
Indicator Sound Level
Indicator (Humidity)
Instruments (Environmental)

Impedance bridges
Infrared Thermometers
Insulation Meters
Lan Network Testers
Laser Distance Meters
Laser level
Laser meters
Laser thermometers
LCR Meters
Length Meters
Light Meters
Lux Meters
Magnetometers
Manometers
Material Thickness Meters
Measurement Devices (Force)
Measuring Meters (Distance)
Measuring Wheels
Meters (Combustion, Distance, Earth,
Energy, Environmental, Gas, Gloss, Ground pH, PowerPressure, Radiation, Salt, Temperature)
Megohmmeters
Micrometers
Microscope
s
Modular signal Converters
Moisture Indicator

Multimeters
Multi-Parameter Photometers
Noise Meters
Odometers
Ohm Meters
Oscilloscopes
Oxygen Meters
Ozone Meters
Paper Moisture Meters
Penetrometers

Phase rotation meters
Photovoltanic meters
Pitot tube air flow meters
Pocket pH-meters
Power Analyzers
Pressure Gauges
Pyrometers
Quality Meters (Air)
Radiation Counters
Radioactivity meters
Reader (Temperature)
Recorders Data
Redox Meters
Refractometers
Relative Humidity Meters
Resistance Testers
Rotation meters
Roughness tester
Rotation meters
Roughness tester
Scales
Sensor (Temperature)
Signal converters
Signal Level Analyzers
Single-parameter Photometers
Sound Level Meters
Systems for Environmental
Stethoscopes (electronic)
Stroboscopes
Surface Thickness Meters

Tachometers
Telescope Meters
Thermo-anemometers
Thermo-Hygrometers
Temperature Probes
Testers Air
Testers Conductivity
Testers Earth
Testers Insulation
Testers Noise
Testers pH
Testers paper
Testers Sound
Testers Temperature
Thermal stress
Thermal Imaging Cameras
Thermometers
Thermocouples
Thickness Meters
Torque meters

Ultrasonic Flow Meters

VDE tester
Vibration Meters
Video endoscopes
Voltage meters
Weather Stations
Wood (humidity)

Below you will find an overview of the different product groups of scales and balances

 Accurate scales
 Analytical scales
 Animal scales

 Baby scales
 Basic scales

 Bench scales

 Cask scales
 Crane scales
 Compact scales
 Counting scales

 Density scales
 Dosing scales

 Electronic scales

 Floor scales
 Force meter

 Hanging scales

 Hook scales
 Hopper scales
 Household scales
 Humidity scales

 Industrial scales
 Inventory scales

 Jewellery scales

 Kitchen scales

 Laboratory scales
 Lifting scales
 Load cranes
 Load scales

 Mechanical scales
 Micro scales
 Moisture scales
 Multifunction scales

 Package scales
 Pallet truck scales
 Pallet scales
 Paper scales
 Pharmacy scales
 Piece counting scales
 Platform scales
 Pocket scales
 Postal scales

 Precision scales
 Probe cutter

 Retail scales

 Scales for analysis
 Scales for carat
 Scales for colleges
 Scales for dentistry
 Scales for gold
 
Scales for people
 Scales for school
 Scales for transit

 Scales for weighing pallets
 Scales with a support
 Scales with counter
 Scales with software
 Shipping scales
 Spring scales
 Surface scales

 Systems (Hanging)

 Tabletop scales
 Thermo scales
 Trade scales

 Vehicle scales
 Verifiable scales
 Veterinary scales

 Water resistant scales
 Weighing hooks
 Weighing platforms
 
Weighing scales
 Weight indicator