Vapor-liquid equilibrium study of R1150+R1234ze(E) binary system at 223.15—253.15 K

doi:10.11949/0438-1157.20241385

Abstract

Abstract:

R1150 exhibits high latent heat and evaporation pressure, whereas R1234ze(E) is environmentally friendly and boasts excellent thermal performance. Consequently, the binary mixture of R1150 and R1234ze(E) presents a potentially valuable working fluid pair. However, the limited data on its vapor-liquid equilibrium has hindered its practical engineering applications. To address this, this study investigates the vapor-liquid phase equilibrium of the R1150+R1234ze(E) binary mixture. A static analysis method was employed in the experimental system, achieving a temperature uncertainty of 4.2 mK and a pressure uncertainty of 0.001 MPa. The vapor-liquid equilibrium data for the R1150+R1234ze(E) binary mixture were measured within the temperature range of 223.15 K to 253.15 K and correlated using the PR-MHV1-NRTL and PR-WS-NRTL models. The results demonstrated good consistency when compared with experimental data.

Key words: phase equilibrium, vapor-liquid equilibrium, mixture, model, R1150, R1234ze(E)

摘要：

R1150具有较高的蒸发潜热和蒸发压力，R1234ze(E)具有环境友好性和完善的热力性能，因此，R1150与R1234ze(E)的二元混合物作为一种潜在的工质对，具有重要的应用价值。然而，由于相关汽液相平衡数据的缺乏，该混合工质在实际工程中的应用受到了限制。本文采用一套静态分析法的装置对二元混合工质R1150+R1234ze(E)在223.15~253.15 K温区的汽液相平衡进行了研究。并应用PR-MHV1-NRTL和PR-WS-NRTL两种模型对实验数据进行关联，结果显示模型与实验值具有良好的一致性。

关键词: 相平衡, 汽液平衡, 混合物, 模型, R1150, R1234ze(E)

CLC Number:

TK 123

Hao LIU, Lin WANG, Hao DING, Jiayi GENG. Vapor-liquid equilibrium study of R1150+R1234ze(E) binary system at 223.15—253.15 K[J]. CIESC Journal, 2025, 76(S1): 1-8.

刘豪, 王林, 丁昊, 耿嘉怡. R1150+R1234ze（E）二元体系223.15~253.15 K汽液相平衡研究[J]. 化工学报, 2025, 76(S1): 1-8.

Figures/Tables 8

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测量温度/K	p_exp/MPa	p_ref/MPa	\|δp\|/MPa	\|δp/p_exp\|/%
253.15	2.5283	2.5284	0.0001	0.00
243.15	1.9367	1.9366	0.0001	0.01
233.15	1.4526	1.4521	0.0005	0.03
223.15	1.0624	1.0619	0.0005	0.05
213.15	0.7546	0.7541	0.0005	0.07

测量温度/K	p_exp/MPa	p_ref/MPa	\|δp\|/MPa	\|δp/p_exp\|/%
253.15	2.5283	2.5284	0.0001	0.00
243.15	1.9367	1.9366	0.0001	0.01
233.15	1.4526	1.4521	0.0005	0.03
223.15	1.0624	1.0619	0.0005	0.05
213.15	0.7546	0.7541	0.0005	0.07

测量温度/K	p_exp/MPa	p_ref/MPa	\|δp\|/MPa	\|δp/p_exp\|/%
273.15	0.2163	0.2166	0.0003	0.14
263.15	0.1475	0.1474	0.0001	0.07
253.15	0.0973	0.0969	0.0004	0.41
243.15	0.0616	0.0611	0.0005	0.82
233.15	0.0370	0.0367	0.0003	0.82
223.15	0.0213	0.0209	0.0004	1.91
213.15	0.0116	0.0111	0.0005	4.31

测量温度/K	p_exp/MPa	p_ref/MPa	\|δp\|/MPa	\|δp/p_exp\|/%
273.15	0.2163	0.2166	0.0003	0.14
263.15	0.1475	0.1474	0.0001	0.07
253.15	0.0973	0.0969	0.0004	0.41
243.15	0.0616	0.0611	0.0005	0.82
233.15	0.0370	0.0367	0.0003	0.82
223.15	0.0213	0.0209	0.0004	1.91
213.15	0.0116	0.0111	0.0005	4.31

实验数据			模型计算值(PR-MHV1-NRTL)				模型计算值(PR-WS-NRTL)
x_1,exp	y_1,exp	p_exp/MPa	p_cal/MPa	y_1,cal	\|δp/p_exp\|/%	\|y_1,exp-y_1,cal\|	p_cal/MPa	y_1,cal	\|δp/p_exp\|/%	\|y_1,exp-y_1,cal\|
T=223.15 K
0	0	0.0213	0.0212	0	0.70	0	0.0212	0	0.70	0
0.0872	0.8656	0.1636	0.1640	0.8739	0.23	0.0083	0.1636	0.8743	0	0.0087
0.1859	0.9298	0.3012	0.3013	0.9341	0	0.0043	0.2968	0.9338	1.49	0.0040
0.2573	0.9489	0.3897	0.3867	0.9504	0.76	0.0015	0.3798	0.9502	2.54	0.0013
0.5427	0.9751	0.6404	0.6501	0.9758	1.50	0.0007	0.6478	0.9763	1.14	0.0012
0.6190	0.9795	0.7096	0.7096	0.9796	0	0.0001	0.7096	0.9801	0	0.0006
0.7337	0.9843	0.8007	0.8000	0.9850	0.10	0.0007	0.8006	0.9851	0.02	0.0008
0.8311	0.9890	0.8813	0.8834	0.9897	0.24	0.0007	0.8814	0.9894	0.02	0.0004
0.9297	0.9943	0.9760	0.9807	0.9953	0.48	0.0010	0.9765	0.9947	0.05	0.0004
1.0000	1.0000	1.0623	1.0617	1.0000	0.06	0	1.0617	1.0000	0.06	0
T=233.15 K
0	0	0.0371	0.0370	0	0.19	0	0.0370	0	0.19	0
0.0901	0.8299	0.2199	0.2171	0.8329	1.28	0.0030	0.2200	0.8358	0	0.0059
0.1980	0.9131	0.4006	0.4037	0.9134	0.75	0.0003	0.4015	0.9140	0.20	0.0009
0.2708	0.9305	0.5142	0.5142	0.9341	0	0.0036	0.5091	0.9346	0.99	0.0041
0.4157	0.9543	0.7102	0.7061	0.9558	0.58	0.0015	0.7020	0.9566	1.17	0.0023
0.5501	0.9663	0.8619	0.8630	0.9675	0.12	0.0012	0.8653	0.9686	0.39	0.0023
0.6293	0.9728	0.9550	0.9521	0.9731	0.31	0.0003	0.9574	0.9740	0.25	0.0012
0.7335	0.9793	1.0838	1.0723	0.9799	1.07	0.0006	1.0773	0.9802	0.61	0.0009
0.8353	0.9854	1.1997	1.2004	0.9868	0.05	0.0014	1.1998	0.9863	0	0.0009
0.9259	0.9927	1.3305	1.3305	0.9936	0	0.0009	1.3252	0.9927	0.40	0
1.0000	1.0000	1.4525	1.4535	1.0000	0.06	0	1.4535	1.0000	0.06	0
T=243.15 K
0	0	0.0616	0.0613	0	0.53	0	0.0613	0	0.53	0
0.1096	0.8069	0.3222	0.3222	0.8133	0	0.0064	0.3222	0.8151	0	0.0082
0.2950	0.9147	0.7061	0.6983	0.9191	1.10	0.0044	0.6959	0.9210	1.45	0.0063
0.3601	0.9282	0.8142	0.8142	0.9327	0	0.0045	0.8142	0.9349	0	0.0067
0.4174	0.9385	0.9082	0.9109	0.9417	0.29	0.0032	0.9144	0.9441	0.68	0.0056
0.4989	0.9508	1.0516	1.0420	0.9518	0.92	0.0010	1.0516	0.9543	0	0.0035
0.6554	0.9647	1.2761	1.2852	0.9667	0.72	0.0020	1.3016	0.9684	2.00	0.0037
0.7423	0.9731	1.4337	1.4249	0.9741	0.61	0.0010	1.4375	0.9749	0.27	0.0018
0.8406	0.9814	1.6012	1.5974	0.9828	0.24	0.0014	1.5992	0.9823	0.13	0.0009
0.9294	0.9905	1.7747	1.7761	0.9917	0.08	0.0012	1.7695	0.9906	0.29	0.0001
1.0000	1.0000	1.9372	1.9414	1.0000	0.22	0	1.9414	1.0000	0.22	0
T=253.15 K
0	0	0.0970	0.0968	0	0.16	0	0.0968	0	0.16	0
0.0956	0.7370	0.3768	0.3690	0.7396	2.07	0.0026	0.3768	0.7462	0	0.0092
0.2106	0.8509	0.6707	0.6732	0.8608	0.38	0.0099	0.6721	0.8627	0.20	0.0118
0.2833	0.8855	0.8524	0.8524	0.8925	0	0.0070	0.8448	0.8939	0.89	0.0084
0.4262	0.9227	1.1801	1.1778	0.9268	0.20	0.0041	1.1670	0.9287	1.11	0.0060
0.5597	0.9434	1.4537	1.4587	0.9459	0.34	0.0025	1.4552	0.9482	0.10	0.0048
0.6349	0.9528	1.6135	1.6135	0.9545	0	0.0017	1.6143	0.9566	0.05	0.0038
T=253.15 K
0.7295	0.9631	1.8147	1.8131	0.9646	0.09	0.0015	1.8147	0.9660	0	0.0029
0.8321	0.9748	2.0518	2.0492	0.9759	0.13	0.0011	2.0435	0.9760	0.40	0.0012
0.9262	0.9870	2.2968	2.3013	0.9880	0.20	0.0010	2.2892	0.9871	0.33	0.0001
1.0000	1.0000	2.5283	2.5386	1.0000	0.41	0	2.5386	1.0000	0.41	0