Refrigerant properties refrigerants can be characterized by a number of properties. The thermodynamic properties of refrigerant r14 are provided by martinhou equation of state a. Tetrafluoromethane is a colorless nonflammable gas. It is suitable for new and retrofit systems, offering an optimal balance of properties, including high energy efficiency and environmental sustainability.
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. A computer software for thermodynamic properties computation. R 14 refrigerant chemical information, properties, structures, articles, patents and more chemical data. Even r22 is on its last legs with no new installations of any size allowed. Looking for a quick way to get rid of your newused refrigerant gas.
Please select the desired standard state convention. This model is based on helmholtz energies for each of the mixture components, and it is the approach used in the nist refprop refrigerant property database lemmon et al. R, chlorotrifluoromethane properties, purity and packaging. Pdf the study of thermodynamic properties of zeotropic mixtures. Technical information at22 thermodynamic properties of dupontz freon. Freon refrigerants r11, r12, and r22, plus ammonia and water, will be discussed in terms of the abovementioned categories. There are 53 suppliers who sells refrigerant r on, mainly located in asia. In the last two centuries, human ingenuity made it. A similar comparison of mixture models reported by annex 18 facilitated the dissemination and adoption of a new mixture modelling approach.
The chart shows the pressure, temperature and enthalpy at the current mouse position. The study of thermodynamic properties of zeotropic mixtures of r600ar23r14 article pdf available in advances in mechanical engineering 93. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. Track and streamline critical refrigerant leak rate calculations and alerts with an easytouse software solution, helping your organization operate in compliance with mandatory requirements. Track equipment, inventory, and maintenance across the organization. The publication presents a set of equations and constants for calculating thermodynamic properties of refrigerants.
Genetron is a registered trade name for allied signal corporation. Environmental ranking of refrigerants is of need in many instances. Ees provides builtin thermophysical property data for the fluids listed below. Used with alkylbenzene ab lubricants, general applications for freon 124 include extending the life of r114 chillers and retrofitting r114 in.
A typical thermodynamic property formulation is based on an equation of. It is also formaldehyde free, has low vocs, and resistant to mold and mildew. Use the refprop dll in your intranet applications with your site license. Refrigerant gas r14 information about refrigerant gas r14 is for educational purposes only. Due to its density, tetrafluoromethane can displace air, creating an asphyxiation hazard in inadequately ventilated areas. On the results page, you will get a detailed list of all the points around the cycle. If you want me to add a refrigerant, just send me an email or post a message into the guestbook. Thermodynamic properties of zeotropic mixtures of r600ar23r14 have been. Thermodynamic properties of refrigerants r11, r12, r. See the refprop faq for help installing and using refprop.
In this refrigerant cf4 property table, a state is visually presented see the examples below as a collection of properties such as p, t, v, h, s etc. Always check the compressor manufactures recommendations for oil on any other type of cooling unit. The smart thermodynamic table is more than a visual thermodynamic state calculator for. Software systems corporation refrigerant properties program, j. All refrigerants use r11 as a datum reference where r11 has an odp of 1.
If we move an existing r22 plant i have to replace the refrigerant with a hfc, i. Model for the viscosity and thermal conductivity of refrigerants, including a new correlation. Comparison of environmental impacts and physical properties of refrigerants ko matsunaga executive summary even before the invention of refrigeration, people wanted to improve their life by using ice to provide cold drinks and preserve food. These properties pressure, temperature, volume, density, enthalpy, flammability, the opportunity to mix with vegetable oil, moisture reaction, smell, toxicity, leakage trend, and leak detection. Block diagram for the calculation program for refrigerant mixtures.
Nist national institute of standards and technology has released a new version of the nist standard reference database 23, thermodynamic and transport properties of refrigerants and refrigerant mixtures refprop. Nist used its best efforts to provide a highquality software package and to select modeling methods and correlations based on sound scientific judgement. All are tested to meet or exceed ahri700 purity standards. Thermodynamic properties of zeotropic mixtures of r600ar23r14 have. R32 is suitable for new equipment specifically designed for r32, in applications that used to use r410a. These properties are pressure, temperature, volume, density, enthalpy, flammability, ability to mix with oil, moisture reaction, odor, toxicity, leakage tendency, and leakage detection. The fluids are grouped into real fluids, ideal gases, brines, incompressible substances, and mixtures. Alibaba manufacturer directory suppliers, manufacturers. Tetrafluoromethane, refrigerant gas r14 safety data sheet p4665 this sds conforms to u. Chlorotrifluoromethane is used as a lowtemperature refrigerant for flash freezing and cryogenic processes that require human tissue to be frozen quickly for analysis and examination. Monochlorotrifluoromethane, cfc, freon, genetron, forane freon is a registered trade name for e. Home genetron refrigerants modeling software download. Refrigerant properties glide and heat exchanger performance r404a is a quasiazeotrope refrigerant blend, which means it condenses and boils at nearly the same temperature for a given pressure temperature glide lower than 0.
Investigation and analysis of r463a as an alternative refrigerant to. The potential for a single molecule of the refrigerant to destroy the ozone layer. For decades, freon refrigerants have been the trusted choice for their performance, reliability, and safety in air conditioning and refrigeration applications. R 22 use mineral oil, mixing of poe is acceptable however it is preferred to use the oil that the original charge used. Purchasing freon refrigerants by the chemours company provides a reliable supply of highquality refrigerants to use in new equipment and retrofit opportunities, and to service. The refrigerant reference pages are a subweb courtesy of refrigerant supply inc. Fitted parameters are from downing and knight, dupont technical bulletin rt52, 1971. If you are having trouble downloading this software, or are getting an. Refrigerant r4a properties thermodynamic properties of refrigerant r4a refrigerant r22 properties properties of refrigerant r22 dichlorodifluoromethane saturated liquid and saturated vapor imperial and metric units refrigerants commonly used refrigerants methane series, ethane series, propane series. Recently a new refrigerant, r410a, has been formulated and currently is being used in the hvacr industry. Depending on the concentration, refrigerant 14 inhalation can cause headaches, nausea, dizziness and damage to the cardiovascular system mainly the heart. Isodis draft standard 17584, refrigerant properties.
Refrigerant properties motor vehicle air conditioning. The study on the thermodynamic properties of the mixed refrigerants in the arc cycle is very limited, and recent literature mostly focuses on the nearazeotropic mixture refrigerant, 8 and there is no proven theoretical support for the vaporliquid equilibrium of the zeotropic mixture refrigerant and the calculation of enthalpy and. Dakotas refrigerant management application helps organizations comply with epa record keeping requirements by tracking usage, leak rates, exceedances, and action due dates across the organization. Als environmental provides no warranty, expressed or implied, as to the accuracy, reliability or completeness of furnished data. If i go to site and find r12 in a system i have to decant it send it for destruction and replace it with a replacement that is not banned. Opteon xp30 r514a refrigerant is a nonozone depleting, low global warming potential gwp hydrofluoroolefin hfo based replacement for r123. Calculation of thermal pressure coefficient of r11, r, r14, r22. The top countries of suppliers are china, taiwan, china, from which the percentage of refrigerant r supply is 88%, 11%. Through our nationwide network, aspen maintains and distributes the largest selection of refrigerants in the country.
The study of thermodynamic properties of zeotropic. J639, j2844, j1739 hfo1234yf is a climatefriendly refrigerant. A wide variety of refrigerant r options are available to you, such as agriculture grade, industrial grade, and medicine grade. Properties of refrigerants n low boiling point and high latent heat of. R32 refrigerant gases and products for air conditioning. Freon 124 r124 refrigerant is a hydrochlorofluorocarbon hcfc retrofit replacement for r114 used in centrifugal chillers and highambient cooling applications, including overhead cranes. Nist reference fluid thermodynamic and transport properties database. The phaseout schedule for r22, as mandated bythe environmental protection agency epa, will be dis. It has long been used in a variety of airconditioning and refrigeration applications in a variety of markets. In this paper, temperature dependency of the parameters of r11, r, r14, r22. United nations environmental program to reduce stratospheric ozone depletion. R418a is used to replace r22 and r502 in household air conditioning,central air conditioning,industrial process refrigeration,transport refrigeration, cold storage warehouse etc. R1123, r1224yd z, r1233zde, r1234ze z, r1243zf, and r36mzz z. Refrigerant r418a r418a refrigerant gas is a new envioronmentalfriendly gas.
This disambiguation page lists articles associated with the same title formed as a letternumber combination. Although hfc4a does not deplete the ozone layer, it is a potent greenhouse gas with a high global warming potential. Gain visibility into the refrigerant lifecycle by centralizing your refrigerant data and simplify refrigerant management auditing and reporting. R4a, chemically 1,1,1,2tetrafluoroethane cf 3 ch 2 f is a nonflammable gas used primarily as a hightemperature refrigerant for domestic refrigeration and automobile air conditioners. R4a is also known as tetrafluoroethane cf3ch2f from the family of hfc refrigerant.
These hvac refrigerant pressures, charge quantity, and other diagnostic questions and replies were originally posted in the ac or heat pump diagnosis and repair articles listed at the end of this page. In october 2016, the hfc phase down steps were agreed upon and became a part of the montreal protocol, which go into effect on january 1, 2019, pending approval. Hfc4a is the most common mvac refrigerant used since the 1990s. R404a is formulated to closely match the properties of refrigerant r502, making it useful for a variety of medium and low temperature refrigeration applications. Refrigerants physical properties engineering toolbox. Thermodynamic properties of refrigerants r11, r12, r, r14, r22. In addition to our aspen brand, we also distribute arkema forane, chemours opteon, isceon and freon, honeywell genetron, solstice and mexichem fluor klea and other recognized brands. Freon 124 r124 refrigerant r114 retrofit refrigerant.
Ansiashrae standard 361992 safety group classification. Thermodynamic properties of refrigerants r11, r12, r, r14, r22, r23, r1. It was developed primarily because the production of r22 is scheduled to stop soon. Isothermal properties isobaric properties isochoric properties saturation properties temperature increments saturation properties pressure increments. The biggest issues with refrigerants like r14 is that with its so low boiling point it requires allot of psi to compress to liquid with this in mind it may make better use to juice up a system that is running on a lower grade refrigerant by adding 1025%. On the other hand, refrigerants r449a and r452a exhibit 1.
Below is a list of the different oil types for the different refrigerants in our units. Types of refrigerants and their environmental impact. It is produced during respiration by most living organisms and is absorbed by plants. Pdf the study of thermodynamic properties of zeotropic. Refrigerants can be characterized by a number of properties. Take a look at these questions to find common suction side or low side refrigerant pressures, high side or head pressure. State equation, equation of saturated vapor pressure, equation of liquid volume, equation of specific heat capacity, enthalpy and entropy for r11, r12. Some of these refrigerants in the real fluids category, e. Thermodynamic properties of refrigerants r11, r12, r, r14. R chlorotrifluoromethane other names and brand names. You have clicked a page that seems to be very popular. The ammonia nistequation of state introduces the first change to the helmholtz energy functional form in over 25 years of development of nistequations for the thermodynamic properties of fluids. With the discovery of the damaging effect of cfcs and hcfcs refrigerants to the ozone layer, the hfc family of refrigerant has been widely used as their replacement. Distributor agreements are available to integrate refprop into your software and hardware products.