- P-H Diagrams
- The Fundamental Myth
- Cascade systems
- Psychrometrics
- Throttling Effect
- basic operating principles of compressors
- textbok on the modern refrigerators
- capillary tube design
- Domestic refrigerator coolant data
- how to calculate the length of evapurator
- Surface wetting of R22 vs Ammonia
- household water line pressure
- calculation of evap..and condenser
- Nominal HP
- measuring vacuum unit
- pressure test
- Walk in freezer with no LLS
- ventilation for laundry
- My Customer's Air Conditioner isn't keeping the beer cold!
- AC/DC control voltage
- Balanced port TEVs
- VC or not VC
- Infiltration at entry
- Vapor Pressure
- motor horse power
- hvac/r terminology
- Water Source Heat Pump
- Unloader
- Modifying cabinet temps
- Are all 8000BTU Window AC created equal?
- Dye?
- newbie questions.......
- ? for herefishy
- Hot gas defrost
- Super what???
- Sub cool?
- alternative refrigerants
- Brazing vs. soldering
- Urgent!!! S.O.S. - nozzle size
- Orifice
- coaxial (tube in tube) heat exc.
- Oil
- Oil
- Charging Split, Using Amps
- cold river water
- sight glasses
- condensing temp rule of thumb
- water cooled condensers
- accurators
- Disharge temp
- Absorption Refrigeration
- unloaders and oil press.
- headmasters
- 120 VAC or 12 VDC
- refrigeration oils
- tev bulb
- noobie question re testing compressor
- R12 and R409a
- disharge temp
- Thermodynamic Laws
- capillary tubes and mass flow when fed with liquid/gas
- TEV with MOP: how to keep valve body temp above bulb temp?
- Copper U Values
- flash gas
- Shell/Tube flow rate?
- starting out
- oil switchs
- Cabinet capacity
- Tube pitch squared/staggered
- Throttling in a valve
- R-value conversion
- Tube staggered/squared
- Burn out procedures
- Refreshing memory
- Oil "foaming" with R-402B
- tev bulb in immersion well?
- basic refrigerator properties
- High air off
- Oxy nozzles
- TEV - Pressure limiting element
- oversized filter/drier
- Power required in a compressor
- My Problem
- Noobie question.Evaporator Pressure.
- Tin/Antimony Solder
- R12 vs R134A
- Questions Ammonia evaporators
- Rebuilt truck refrigeration units (Carrier)
- Simple question
- Defrost hot glycol?
- ammonia evaporators
- Duct Size Help!
- Recirculations ammonia evaps
- Direct Energy Consumption Question
- Compressor Displacement
- Looking for chiller info on the web....
- frost top construction ???
- pressure drop of pump return line ammonia
- Online Technical Articles
- Powering a 1/3HP Compressor
- Article in ACH&R News
- Horsepower = Tonnage
- Liquid Receiver Calculations
- Coil Air Off Temperature
- How the refrigerator is less humid than outside
- Faulty Fridge/freezer
- compressor coil
- gas evaporater fridge efficiency ?
- ***** System Pressure Relief
- Pressure relief valve
- hvac &r university
- Danfoss AKV10 valves
- Cooling tower water pumps
- Stainless To Copper Joint
- Brazing tungsten to brass: can it be done?
- How many small strands needed to equal pipe pressure drop?
- TEV superheat setting and low temperatures
- Relative Humidity Glycol Air Cooler
- Fact or Fiction
- Hot gas pipe sizing
- Current Research Topics
- About gas blend properties (how can high pressure components condense?)
- What should superheat be on...
- High pressure float expansion devices.
- Multiplex
- enthalpy pressure diagram.
- to visit
- expention valve equalizer
- Entropy
- environmental protection act
- low ambient - low liquid level ?
- Water PT curve
- evaporator
- what's the difference between the dry and flash type economizer?
- Help to calculate Heat Exchancger
- cap tube
- multiple evaps
- Building a small refrigerator
- Performance of liquid line dryers at -40C/-40F
- Regulation regarding hydrocarbons in an cascade
- Urgent, Kirchoff question
- System Design Pressures
- Calculating properties of refrigerant blends (R507/R410A)
- Ambient and Condensing.
- Sight glass , Flashing ?
- Can a home freezer maintain -23C/-10F
- Compressor's volume efficiency
- Migrate Oil problem - Medium Refrigeration System
- Compressor pumping efficiency
- Superheat
- Thermodynamics
- Is this possible?
- metres squared 'v' square metres
- superheat help
- A question about the pressure drop in coil .
- freezer maintenance
- solar powered refrigeration R&D
- hunting???
- Compressor Oil Charge
- cooling copper pipes after braizing
- Strange increase of efficiency
- refrigeration circuit symbols
- en378
- Safe Handling Licence
- Use of schrader valves
- Oil pressure switch- Low oil level
- Designing Roll Bond Evaporator
- Will it work.
- Why Do Condenser Fans Suck ?
- Compressor back pressure rating
- System charging
- air cooled condenser design
- Dramatize R effect of pressure alone
- Air Compressors
- Total System Charge
- someone please help!
- Identification of a Prestcold
- Help with charge calcs
- Edinburgh cafe explosion
- Converting from R12 R22 R502
- Pipe Sizing
- r22 enthalpy diagram
- Usefull General Info
- What is the best brand name for refrigeration valves
- Stirling Cycle
- What kinf of pipes are used for coldstores ?
- Carrier Moduline VAV air terminals
- Cap Tube Sizes
- Nox
- liquid desiccant dehumidify
- Can an amature build a homebrew temprite???
- Service Bulletin Quiry
- cleaning old pipework
- evaporative condenser
- Heat transfer through tubes
- Pykrete Summer Igloo
- Eroding in pipe heat exchangers
- Comments on this please
- zone heating /cooling work station
- backforward curve centrifugal fan
- Capacity Control Head
- HPWH issue
- HVAC system trend in the future
- Condensor split temperature
- re ref. circuit
- nitrogen purging
- Chocolat storage
- DX coil software
- How to calculate gas top up (R22)
- Leaks in refrigeration systems
- why icing on the suction valve
- need your help
- to Peter 1
- Acraclad coating
- undersize pipe and kink
- leaving dry and wet bulb difference of Evaporator coil
- Expansion
- oil in tank heat load calculation
- Internal V's External Expansion Valves
- Superheat
- Vacuum procedure
- need help
- hot discharge air from C.U
- Refrigerant R22/R404A
- Quick question about using a fridge in an RV
- Gas and liquid lines
- Ammonia Gauges?
- capacity converstion
- Chilled Displays :
- Heat pump temperature control
- thermoelectric air coolers?? Is it suitable??
- Evaporative condenser surface area
- need help
- Compressor for island case
- Guidance on a first foray...
- running pressures
- water cooling coil design
- Leaving conditions of DX HELP REQUIRED!!!
- Oil parameters
- water coil anti-freeze
- Cascade Refrigeration System
- household portable dehumidifier
- Freezer/Cooler Question
- 3D software
- expansion water tank sizing program
- secondary refrigernt additives
- I want to find detailed files about ALCO zz thermo expansion valve
- Buffer Tank Sizing
- superheat measure
- reverse cycle low ambient