What are the thermodynamic properties of refrigerants?
What are the thermodynamic properties of refrigerants?
Reliable thermodynamic properties of refrigerants such as pressure, temperature, specific volume, enthalpy and entropy, are required for refrigeration equipment selection and design.
Which ASHRAE classification for refrigerants?
The three main flammability classifications are class 1, for refrigerants that do not propagate a flame when tested as per the standard; class 2, for refrigerants of lower flammability; and class 3, for highly flammable refrigerants such as the hydrocarbons.
What is the ASHRAE standard 15?
ASHRAE Standard 15 establishes safeguards for life, limb, health, and property and prescribes safety requirements. This standard is directed toward the safety of persons and property on or near the premises where refrigeration facilities are located.
How do I download ASHRAE standards?
ASHRAE members who receive the ASHRAE Handbook as part of their membership can download the PDF of the 2018 ASHRAE Handbook—Refrigeration (I-P and SI versions) by going to the ASHRAE Technology Portal, logging in as a member, and clicking “ASHRAE Handbook.” Downloads are available as a complete volume or by individual …
What is ASHRAE standard?
ASHRAE standards are developed so that HVAC and refrigeration professionals have access to up-to-date procedures when testing, installing and designing hardware. They also provide consistent terminology and information for HVAC professionals. Guideline project committees create standards.
What is highest possible ODP for any CFC HCFC HFC or HFO refrigerant?
1
Question #4: What is highest possible ODP for any CFC, HCFC, HFC, or HFO refrigerant? The highest possible ODP for these refrigerants is 1 for R-11, a CFC refrigerant. The potential of any refrigerant to deplete the ozone layer is compared to the ODP of R-11 and will be lower.
What does ASHRAE mean?
using its full legal name of the American Society of Heating, Refrigerating and Air-Conditioning Engineers. Use of ASHRAE reflects the Society’s worldwide membership and that services will continue evolving globally.
What limit defines the ASHRAE 15 standard for r410a?
0.025 lb per cubic foot
The refrigerant concentration limit (RCL) for R-410a is 0.025 lb per cubic foot. To maximize safety, ASHRAE standards assume the worst case scenario in their design requirements – having the full refrigerant charge of an HVAC system released into a small room, over a short period of time.
How do you cite ASHRAE?
Citation Data American Society of Heating, Refrigerating and Air-Conditioning Engineers. ASHRAE Standard : Standards for Natural and Mechanical Ventilation. New York :The Society, 1973.
