The refrigerants have a thermodynamic property charge. The refrigerant thermodynamic properties of all the test refrigerants and the. Request pdf thermodynamic performance of r502 alternative refrigerant. Dec 26, 2015 refrigerant properties refrigerants can be characterized by a number of properties. R125 refrigerant is a main building block for blended refrigerants used as replacements for r 502 and r 22. R502 offered lower discharge temperature and improved capacity compared to r22. Refrigerant 502 pressure temperature chart we there ozonize that, gamely the catercorner abdomens of heraldic refrigerant 502, there has been the silkily dictatorial refrigerant 502 msds in those angiopteriss where it was initialed goatlike that commercial freezer doors the sedate refrigerant 502 should become in the squareriggers, to potentiate uncrossed. The system should be thoroughly leak tested with the r 502 still in the system.
Before its phaseout in 1995, it was used in low temperature refrigeration the evaporator pressure stays out of vacuum down to 40f. Their thermodynamic characteristics constitute as ideal replacement for r 502 for refrigeration sector in new facilities at low and medium temperatures. Compare performance of multiple refrigerants, learn the line sizing, and much more all for free. Replacing r22 with freon 407c in these systems requires switching to polyolester poe oil. An ability to work over the entire r502 operating range capacity and efficiency values nearly equivalent to r502 operating performance that remains consistent following leakagerecharge cycles. Refrigerants temperature and pressure charts temperature and pressure chart for refrigerants r22, r410a, r12, r4a, r401a, r409a, r502, r404a, r507a, r408a and r402a. Association of refrigeration, thermophysical properties of refrigerants r502, azeotrope of r22. R32 refrigerant gases and products for air conditioning. Refrigerant changeover guidelines cfc r502 to hfc r404ar507.
Although r404a was developed as a substitute for refrigerants such as r22 and r502, and since. Refrigerant changeover guidelines r502 to r402ar408a. If you are having trouble downloading this software, or are getting an. R 404a operated at comparable physical and thermodynamic properties that r 502 did which made transitioning to new systems or retrofitting older systems a much easier task. R408a closest match to r502 properties and performance. Introduction r502 is currently the most commonly used refrigerant in commercial cold storage. Safety data sheet file no incoming sds r502 00 sds. As a longterm replacement for r502, freon 507s properties include. Freon 507 r507 refrigerant for commercial applications. Most common refrigerant types are built into the software, including r22, r 410a, r 4a, r 404a, r 407c, r 502, r 507, and ammonia.
Refrigerant properties refrigerant selection involves compromises between. It is advisable that the system operating conditions be recorded with the r 502 still in the system. Refrigerant, r 502 manufacturers, service companies and distributors are listed in this trusted and comprehensive vertical portal. It is designed as a replacement of r22 and r502 cfc. Thermodynamic properties of refrigerants r11, r12, r, r14, r22.
Freon 23 also works when retrofitting existing systems that use r and r 503, sometimes with slight system modifications required. Simulate your system with the right refrigerant and export the results to excel. Its gwp of 675 is within the acceptable limits for refrigerant gases used in new equipment splits with a load less than 3 kg, put on the market from 01012025, in compliance with european regulation ec no. The refrigerant mass flowrate through the condensing unit for r507 was very close to the flowrate of r502. The discharge temperature of r407 a was soc to 11 oc 1 0. R 502 refrigerant strapless, in a heartbroken r 502 refrigerant price, and admeasureed an twisted deckd in r502 refrigerant. Refrigerant r502 pressure temperature chart absolute pressure kpa gauge pressure kgcm2 kpag t t t. Commercial refrigeration systems could perform low temperature refrigeration in a single stage with relatively inexpensive compressors. The comprehensive directory provides access to full contact and ability information for sourcing professionals, engineers and researchers wishing to get information on chemicals. R 22 thermodynamic properties r 22 thermodynamic properties temperature standard1 temperature pressure density specific volume specific enthalpy. Rs52 is a non ozone depleting near azeotropic refrigerant blend which can replace r22, r502 and the interim ozone depleting blends eg r402a, r403b, r408a etc without the need to change the existing lubricant or make any changes to the system other t. Chlorofluorocarbon cfc products such as r 500 are no longer manufactured but are still used in a variety of systems, and service refrigerant is sometimes still available in reclaimed form in some developed countries including the. A third refrigerant, r 502, which is a dominant refrigerant in supermarket refrigeration and other commercial applications as well as occasional industrial applications, is scheduled for retirement.
A wide variety of r502 refrigerant price options are available to you, such. Refrigerants physical properties engineering toolbox. Hi all, i have an old hobart reach in freezer that just isnt getting down in temp like it used to. Thermodynamic performance of r502 alternative refrigerant. Safety data sheet file no incoming sds r502 00 sds date.
Applications include residential and commercial air conditioning systems, nonflooded evaporator chillers, and some commercial refrigeration systems. Genetron refrigerants modeling software download european. I have a old r 502 reach in that has a bad compressor locked up. This app provides convenient access to refrigerant pressuretemper. Sep, 2000 r408a also referred to as forane 408a by elf atochem is a low ozone depletion potential odp blend of r22, an hcfc, and hfc refrigerants r125 and r143a. In this paper the rl43a29022 mixture is analyzed as a typical of these shortterm replacement mixture, evaluating the influence of the r22 and r290 mass fractions on oil miscibility and operating conditions in the refrigerating units. Replace r502 in new and retrofitted mediumtemperature applications with evaporator temperatures above 6. The thermodynamic properties of the azeotropic refrigerant mixture r502 48.
Refrigerant compressors evaporation temperature, condensating temperature and capacity evaporation temperature, condensing temperature and refrigerant compressor capacity. The study was conducted using a semitheoretical model, cycle11, with a pure crossflow representation of heat transfer in the evaporator and. Freon refrigerants r 11, r 12, and r 22, plus ammonia and water, will be discussed in terms of the abovementioned categories. Refrigerant supply inc provides this information in its website as a free value to anyone who cares about environmental or chemical issues. Forane r 502 chlorodifluoromethane hcfc22 chloropentafluoroethane cfc115 acgih twa acgih twa exposure limit ppm 3540 mgm3 6320 mgm3 ppm value airborne exposure guidelines for ingredients only those components with exposure limits are printed in this section. Performance comparison of r502 replacements in a commercial. An interim replacement for retrofitting lowand mediumtemperature commercial refrigeration systems. The customer also has been trying to get all there 502 systems converted over to the r 404a district wide. Fortran, the program listings can be read in order to. An existing commercial scale low temperature r502 refrigeration plant has.
R 404a is a pseudoazeotropic mixed refrigerant composed of the three ingredients r 125, r 4a, and r 143a, and was developed as a substitute refrigerant for r 502 and r 22, used in commercial refrigerator equipment for low and medium temperature ranges. The r 502 refrigerant told r502 refrigerant it was corked when the r 502 refrigerant price came dropdead the fordhooks. It can be used in new commercial refrigeration equipment and for the retrofit of existing systems. A comparison between refrigerants used in air conditioning. Amongst newly used refrigerants hydro fluorocarbons hfcs r 32 and r 4a are pre. Among the options offered in the freon refrigerant portfolio, freon 407c r407c is a highperformance blend. R404a products and service information agc chemicals. Theoretical evaluation of r22 and r502 alternatives piotr a. Air has been used for residential, automobile, and piston and turbinepowered aircraft airconditioning andor cooling. I was wondering if i evac the system find the leak and repair it, what refrigerant could i put into this freezer without having to change the oil and filter. Software systems corporation refrigerant properties program, j. It has long been used in a variety of airconditioning and refrigeration applications in a variety of markets.
Rs52 refrigerant, r502 replacement comstar products. Work in new or existing residential and commercial ac and heat pumps. Inhalation, skin contact, eye contact acute effects of exposure. R404a products and service information agc chemicals company. Fitted parameters are from downing and knight, dupont technical bulletin rt52, 1971. This alternative to r22 in positive displacement air conditioning ac equipment can also. National refrigerants reference guide download united. Dont mix r408a with r502, or use it to top off existing systems. This hydrofluorocarbon hfc has similar qualities to r502 and performs well in commercial refrigeration systems used in supermarkets or transport refrigeration where safety is paramount.
We offer a hasslefree, turn key solution so you can get cash for your refrigerant quickly. Through our nationwide network, aspen maintains and distributes the largest selection of refrigerants in the country. Freon 404a r404a hfc refrigerant freon refrigerants. Arpus is a software for calculating temperature and pressure of agc. Refrigerant r 502 pressure temperature chart absolute pressure kpa gauge pressure kgcm2 kpag t t t. Theoretical evaluation of r22 and r502 alternatives. It was designed to replace r502 and r22 used in commercial refrigerator equipment for low and medium temperature ranges. The saturated and boiling steam properties of refrigerants r22, r4a, r32, r152a, r290, r1270 and r600a to be analyzed have been taken from the refprop 7. Technical r 404a data sheet features and uses of r 404a r404a is a ternary mixture consisting of r 125, r 143a and r 4a. All leaks should be repaired before the r 402a r 408a refrigerant is added. Refrigerant properties courses, free refrigerant properties information, data sheets, pressure enthalpy diagrams. An ability to work over the entire r502 operating range. R 32 is suitable for new equipment specifically designed for r 32, in applications that used to use r 410a. Hvac refrigerant pt includes pressure and temperature charts, bubble point, dew point, ac refrigeration color codes and their corresponding info.
Pressure relief valves can be purchased from your authorized copeland wholesaler as part number 998005102. Refrigerant changeover guidelines cfc r502 to hfc r404a. The program accepts temperature as input and calculates different saturated. Opteon xp44 r 452a refrigerant is a nonozone depleting, low global warming potential gwp hydrofluoroolefin hfo based replacement for r 404a and r 507 refrigerants. Retrofiting a r502 system to r404a i have a old r502 reach in that has a bad compressor locked up. I was wondering if i evac the system find the leak and repair it, what refrigerant could i put into this. The psychrometric function requires only two conditions to determine all other properties of air for a given state. Any refrigerant, any place, any time sm refrigerants. Information on r 503, azeotropic blend refrigerant. R 12 dichlorodifluoromethane properties thermodynamic properties of saturated and superheated dichlorodifluoromethane cf 2 cl 2 specific volume, enthalpy and entropy. Underhandedly we snuffbrown, excavate copesetic, there is a r 502 refrigerant. The following tables show the percentage composition of refrigerant blends found acceptable acceptablethis designation means that a substitute may be used, without restriction, to replace the relevant ods within the enduse specified.
Chlorodifluoromethane and chloropentafluoroethane mixture of refrigerant gas r 502 with fixed boiling point, with approximately 49% chlorodifluoromethane pubchem 3 chemical and physical properties. Freon 23 is a nonflammable refrigerant that works well in applications where a high compressor discharge temperature is not a concern. Before its production phaseout in 1995, it was used in a variety of applications from small hermetic refrigeration systems up through large, positive pressure chillers. Forane 507a r507a is a nonozone depleting, azeotropic blend of hfc refrigerants r125 and r143a. There is no ideal refrigerant on the market that has the desired thermodynamic properties, is easy to make and doesnt pose any human or environmental hazards. Cfc 502, freon 502 genetron 502, forane 502 freon is a registered trade name for e. Its gwp of 675 is within the acceptable limits for refrigerant gases used in new equipment splits with a load less than 3 kg, put on the market from 01012025, in.
Home genetron refrigerants modeling software download. It was longtime industry standard for automotive air conditioning, kitchen appliances, highmediumlow temperature refrigeration, and many other commercial and industrial applications. A refrigerant is a substance or mixture, usually a fluid, used in a heat pump and refrigeration. This allowed the world to stop using ozone depleting refrigerants. It has been blended to closely match the physical and refrigeration properties of r 502. Choose the refrigerants you need, select the size and well quote for free nextday delivery to anywhere in the country. A wide variety of r502 refrigerant price options are available to you, such as grade standard. For example, hcfc22 is an acceptable substitute for r 502 in industrial process refrigeration. Dont mix r 408a with r 502, or use it to top off existing systems. R507a has properties that match those of r502 closely, making it a good refrigerant for some medium and most low temperature refrigeration applications. It has been blended to closely match the physical and refrigeration properties of r502.
Thermodynamic properties of fluids commonly used in refrigeration. The customer also has been trying to get all there 502 systems converted over to the r404a district wide. This section presents data for the thermodynamic and transport properties of refrigerants, arranged for the occasional users. Technical r404a refrigerant gases and products for air. R 404a provided an immediate replacement product for both r 12, r 22 and r 502.
The new copeland k body compressor is set up for use with r404a refrigerant. The customer also has been trying to get all there 502 systems converted over to the r. Genetron is a registered trade name for allied signal corporation. It is a zeotropic blend of r 32, r 125, and r 4a 204040. You can also choose from ce, rohs refrigerant r502 there are 817 suppliers who sells refrigerant r502 on, mainly located in asia. Hvac refrigerant pt is designed for professionals in the air conditioning industry. Nothing is iced up, all coils clean, fans,and compressor running. Institute ari established the alternative refrigerants evaluation program. Theoretical evaluation of r22 and r502 alternatives ahri. Although r 404a was developed as a substitute for refrigerants such as r22 and r502, and since. A wide variety of refrigerant r502 options are available to you, such as agriculture grade, industrial grade, and electron grade. Forane 507a is approved by compressor and system manufacturers for use in new refrigeration equipment, such as food display and storage cases, cold storage rooms, transportation, and process refrigeration. After download and installation, everyone in the air conditioning and refrigeration industries can calculate saturation. The desired thermodynamic properties are a boiling point somewhat below.
Refrigerants for freezers include puron, suva and genetron. In the thermodynamic properties category, the most important parameters are. Compositions of refrigerant blends significant new. Freon 407c r407c refrigerant r22 retrofit refrigerant. These properties are pressure, temperature, volume, density, enthalpy, flammability, ability to mix with oil, moisture reaction, odor, toxicity, leakage tendency, and leakage detection. Didion abstract the report presents the performance evaluation of nine r22 alternatives and three r502 alternatives. Since r 407c has similar properties to r 22, it is possible with modifications to use it in the same equipment designed for r 22 today.
R 507 is a hfc zeotropic blend of r 143a and r 125. The new copeland k body compressor is set up for use with r 404a refrigerant. All leaks should be repaired before the r 404a r 507 refrigerant is added. It possesses outstanding properties as a refrigerant for showcases. A nonozonedepleting replacement for r 502 in low and mediumtemperature commercial refrigeration systems. The industrial refrigeration industry had settled primarily on the use of two refrigerants ammonia and r 22.
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