Thermodynamic Properties (R123)

Table of Contents

Composition:

100% 2,2-dichloro 1,1,1-trifluoroethane (CF3CHCl2)

Application:

Large, low pressure centrifugal chillers

Performance:

May require replacement of seals, gaskets, and other components to

obtain the correct operating conditions and prevent leakage

Lubricant:

Compatible with mineral oil and alkylbenzene

Thermodynamic Properties

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TEMP. (˚F)	Pressure Liquid (psia)	Density Liquid (lb/ftˆ3)	Density Vapor (lb/ftˆ3)	Enthalpy Liquid (Btu/lb)	Enthalpy Vapor (Btu/lb)	Entropy Liquid (Btu/R-lb)	Entropy Vapor (Btu/R-lb)
-20	1.0	99.54	0.03413	4.558	87.35	0.01061	0.1989
-15	1.2	99.14	0.03978	5.706	88.05	0.01320	0.1984
-10	1.4	98.73	0.04618	6.857	88.75	0.01578	0.1979
-5	1.7	98.33	0.05339	8.012	89.46	0.01833	0.1975
0	2.0	97.92	0.06149	9.170	90.16	0.02086	0.1971
5	2.3	97.51	0.07055	10.33	90.87	0.02337	0.1967
10	2.6	97.10	0.08067	11.50	91.58	0.02587	0.1964
15	3.0	96.69	0.09192	12.67	92.29	0.02834	0.1961
20	3.5	96.28	0.1044	13.84	93.01	0.03080	0.1958
25	4.0	95.86	0.1182	15.02	93.72	0.03324	0.1956
30	4.5	95.44	0.1334	16.20	94.44	0.03566	0.1954
35	5.1	95.02	0.1502	17.38	95.16	0.03806	0.1953
40	5.8	94.60	0.1686	18.57	95.88	0.04045	0.1952
45	6.5	94.17	0.1887	19.76	96.60	0.04282	0.1951
50	7.3	93.74	0.2106	20.96	97.32	0.04518	0.1950
55	8.2	93.31	0.2346	22.16	98.04	0.04752	0.1950
60	9.2	92.88	0.2606	23.36	98.76	0.04984	0.1949
65	10.3	92.44	0.2889	24.57	99.48	0.05215	0.1949
70	11.4	92.01	0.3195	25.78	100.2	0.05444	0.1949
75	12.7	91.56	0.3526	27.00	100.9	0.05673	0.1950
80	14.1	91.12	0.3883	28.22	101.6	0.05899	0.1950
85	15.6	90.67	0.4268	29.44	102.4	0.06124	0.1951
90	17.2	90.22	0.4682	30.67	103.1	0.06348	0.1952
95	18.9	89.77	0.5128	31.90	103.8	0.06571	0.1953
100	20.8	89.31	0.5605	33.14	104.5	0.06792	0.1955
105	22.8	88.85	0.6117	34.38	105.2	0.07012	0.1956
110	25.0	88.39	0.6664	35.63	106.0	0.07231	0.1958
115	27.3	87.92	0.7249	36.88	106.7	0.07449	0.1959
120	29.8	87.45	0.7874	38.13	107.4	0.07665	0.1961
125	32.4	86.98	0.8540	39.39	108.1	0.07881	0.1963
130	35.3	86.50	0.9249	40.66	108.8	0.08095	0.1965
135	38.3	86.01	1.000	41.93	109.5	0.08308	0.1967
140	41.5	85.52	1.081	43.20	110.2	0.08520	0.1969
145	44.9	85.03	1.166	44.48	110.9	0.08732	0.1972
150	48.5	84.53	1.256	45.76	111.6	0.08942	0.1974
155	52.3	84.03	1.353	47.05	112.3	0.09151	0.1976
160	56.4	83.52	1.454	48.35	113.0	0.09359	0.1979
165	60.7	83.01	1.562	49.65	113.7	0.09567	0.1981
170	65.2	82.49	1.676	50.95	114.3	0.09773	0.1984
175	70.0	81.96	1.797	52.27	115.0	0.09979	0.1987
180	75.0	81.43	1.925	53.58	115.7	0.1018	0.1989
185	80.3	80.89	2.060	54.91	116.3	0.1039	0.1992
190	85.9	80.34	2.203	56.24	117.0	0.1059	0.1995
195	91.7	79.79	2.354	57.57	117.7	0.1079	0.1997
200	97.9	79.23	2.513	58.92	118.3	0.1100	0.2000

FREQUENTLY ASKED QUESTIONS

What is the chemical composition of R123 refrigerant?

R123 refrigerant is composed of 100% 2,2-dichloro-1,1,1-trifluoroethane, also known as CF3CHCl2. This chemical composition is responsible for its thermodynamic properties and performance in various applications.

What type of chillers typically use R123 refrigerant?

R123 refrigerant is commonly used in large, low-pressure centrifugal chillers. These chillers are often found in industrial and commercial applications where high cooling capacities are required. The use of R123 in these chillers allows for efficient and reliable cooling performance.

What are the key considerations when replacing components in an R123 chiller system?

When replacing components in an R123 chiller system, it is essential to ensure that the correct operating conditions are maintained to prevent leakage and ensure optimal performance. This may involve replacing seals, gaskets, and other components that are compatible with R123 refrigerant. Proper installation and maintenance are critical to prevent system failures and reduce downtime.

Is R123 refrigerant compatible with common lubricants?

Yes, R123 refrigerant is compatible with mineral oil and alkylbenzene lubricants. This compatibility is important to ensure that the lubricant does not react with the refrigerant and cause system failures or degradation over time. The use of compatible lubricants helps to maintain the integrity and performance of the chiller system.

What are the critical thermodynamic properties of R123 refrigerant?

The thermodynamic properties of R123 refrigerant include its temperature, pressure, and enthalpy values at various states. These properties are essential in designing and operating chiller systems that use R123 refrigerant. The table provided in the blog post lists the thermodynamic properties of R123 refrigerant at different temperatures and pressures.

How do the thermodynamic properties of R123 refrigerant affect its performance in chiller systems?

The thermodynamic properties of R123 refrigerant directly impact its performance in chiller systems. For example, the refrigerant’s temperature and pressure values influence its ability to absorb and release heat, which affects the chiller’s cooling capacity and efficiency. Understanding the thermodynamic properties of R123 refrigerant is crucial for designing and operating chiller systems that meet specific cooling requirements.