EXPERIMENTAL INVESTIGATION ON POOL BOILING OF R600a/MINERAL OIL SOLUTION

被引：0

作者：

Chen, G. M. ^{[1
]}

Zhelezny, V. P. ^{[2
]}

Shestopalov, K. O. ^{[1
,2
]}

Nikulin, A. ^{[2
]}

Semenyuk, Yu. V. ^{[2
]}

机构：

[1] Zhejiang Univ, Ningbo Inst Technol, Ningbo 315100, Zhejiang, Peoples R China

[2] Odessa Acad Food Technol, UA-65039 Odessa, Ukraine

来源：

11TH IIR GUSTAV LORENTZEN CONFERENCE ON NATURAL REFRIGERANTS (2014): NATURAL REFRIGERANTS AND ENVIRONMENTAL PROTECTION | 2014年

关键词：

Pool boiling; heat-transfer coefficient; refrigerant; compressor oil; hysteresis of boiling; HEAT-TRANSFER; LUBRICANT-INFLUENCE; PRESSURE-DROP; REFRIGERANTS;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The aim of the present study is an experimental investigation of mineral compressor oil (ISO VG 10) impurity effect on the heat-transfer coefficient during pool boiling of refrigerant R600a. Experiments have been performed for the following parameters: mineral oil mass concentrations in refrigerant were 5%, 10% and 30%; boiling temperatures were -12, -2, 8 and 18 degrees C; heat flow was in the range from 0.5 to 80 kW/m(2). The volume of the cylindrical boiler was 1 liter. Stainless steel capillary with 1.6 mm outside diameter and 0.25 mm wall thickness served as a test heater. The length of the test heater was 730 mm. It is shown that the presence of the compressor oil in refrigerant leads to significant reduction in heat-transfer coefficient. The boiling process is highly susceptible to hysteresis at low heat fluxes for gradual increasing of heat loads.

引用

页码：693 / 698

页数：6

共 7 条

[1] Effect of refrigerant oil additive on R134a and R123 boiling heat transfer performance [J].

Kedzierski, M. A. .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2007, 30 (01) :144-154

[2] NUCLEATE POOL BOILING OF R-114 AND R-114-OIL MIXTURES FROM SMOOTH AND ENHANCED SURFACES .1. SINGLE TUBES [J].

MEMORY, SB ;

SUGIYAMA, DC ;

MARTO, PJ .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1995, 38 (08) :1347-1361

[3]

Nikulin A., 2014, P CONV 14 ICHMT INT

[4] Nucleate pool boiling heat transfer characteristics of refrigerant/oil mixture with diamond nanoparticles [J].

Peng, Hao ;

Ding, Guoliang ;

Hu, Haitao ;

Jiang, Weiting ;

Zhuang, Dawei ;

Wang, Kaijian .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2010, 33 (02) :347-358

[5] Critical review of the influence of lubricants on the heat transfer and pressure drop of refrigerants - Part II: Lubricant influence on condensation and pressure drop [J].

Shen, B ;

Groll, EA .

HVAC&R RESEARCH, 2005, 11 (04) :511-526

[6] A critical review of the influence of lubricants on the heat transfer and pressure drop of refrigerants, Part I: Lubricant influence on pool and flow boiling [J].

Shen, B ;

Groll, EA .

HVAC&R RESEARCH, 2005, 11 (03) :341-359

[7] Influence of oil on nucleate pool boiling heat transfer of refrigerant on metal foam covers [J].

Zhu, Yu ;

Hu, Haitao ;

Ding, Guoliang ;

Peng, Hao ;

Huang, Xiangchao ;

Zhuang, Dawei ;

Yu, Jun .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2011, 34 (02) :509-517

← 1 →