Thermodynamic analysis of simplified dual-pressure ammonia-water absorption power cycle

被引：16

作者：

Hua Jun-ye ^{[1
]}

Chen Ya-ping ^{[1
]}

Liu Hua-jin ^{[1
]}

Wu Jia-feng ^{[1
]}

机构：

[1] Southeast Univ, Sch Energy & Environm, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing 210096, Jiangsu, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2012年 / 19卷 / 03期

基金：

中国国家自然科学基金;

关键词：

absorption power cycle; ammonia-water; circulation multiple; ammonia concentration; Kalina cycle;

D O I：

10.1007/s11771-012-1074-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A simplified dual-pressure ammonia-water absorption power cycle (DPAPC-a) using low grade energy resources is presented and analyzed. This cycle uses turbine exhaust heat to distill the basic solution for desorption. The structure of the cycle is simple which comprises evaporator, turbine, regenerator (desorber), absorber, pump and throttle valves for both diluted solution and vapor. And it is of high efficiency, because the working medium has large temperature difference in evaporation and small temperature difference in absorptive condensation, which can match the sensible exothermal heat resource and the cooling water simultaneously. Orthogonal calculation was made to investigate the influence of the working concentration, the basic concentration and the circulation multiple on the cycle performance, with 85-110 A degrees C heat resource and 20-32A degrees C cooling water. An optimum scheme was given in the condition of 110 A degrees C sensitive heat resource and 20 A degrees C cooling water, with the working concentration of 0.6, basic concentration of 0.385, and circulation multiple of 5. The thermal efficiency and the power recovery efficiency are 8.06 % and 6.66%, respectively. The power recovery efficiency of the DPAPC-a is 28.8% higher than that of the steam Rankine cycle (SRC) and 12.7% higher than that of ORC (R134a) under the optimized situation.

引用

页码：797 / 802

页数：6

共 15 条

[1] Maximising the working fluid flow as a way of increasing power output of geothermal power plant [J].

Borsukiewicz-Gozdur, Aleksandra ;

Nowak, Wladyslaw .

APPLIED THERMAL ENGINEERING, 2007, 27 (11-12) :2074-2078

[2]

Chen Y. P., 1997, THERM POWER GENERAT, V47, P20

[3]

Chen YP, 1989, J SE U, V19, P52

[4] Analysis of a new thermodynamic cycle for combined power and cooling using low and mid temperature solar collectors [J].

Goswami, DY ;

Xu, F .

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 1999, 121 (02) :91-97

[5]

Hua-jin LIU, 2011, STUDY MODIFIED AMMON

[6]

INFANTE FERREIRA CA, 2006, REFRIGERATION, V29, P556

[7]

KALINA AI, 1984, J ENG GAS TURB POWER, V106, P737, DOI 10.1115/1.3239632

[8] Performance analysis of different working fluids for use in organic Rankine cycles [J].

Mago, P. J. ;

Chamra, L. M. ;

Somayaji, C. .

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY, 2007, 221 (A3) :255-264

[9] THERMODYNAMIC AND HEAT-TRANSFER IMPLICATIONS OF WORKING FLUID MIXTURES IN RANKINE CYCLES [J].

RADERMACHER, R .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 1989, 10 (02) :90-102

[10] A procedure to select working fluids for Solar Organic Rankine Cycles (ORCs) [J].

Rayegan, R. ;

Tao, Y. X. .

RENEWABLE ENERGY, 2011, 36 (02) :659-670

← 1 2 →