New Perspective on Performances and Limits of Solar Fresh Air Cooling in Different Climatic Conditions

被引：8

作者：

Abrudan, Ancuta C. ^{[1
]}

Pop, Octavian G. ^{[2
]}

Serban, Alexandru ^{[3
]}

Balan, Mugur C. ^{[2
]}

机构：

[1] Tech Univ Cluj Napoca, Dept Bldg Serv, Bd 21 Decembrie 1989 128-130, Cluj Napoca 400604, Romania

[2] Tech Univ Cluj Napoca, Dept Mech Engn, Bd Muncii 103-105, Cluj Napoca 400461, Romania

[3] Univ Politehn Bucuresti, Dept Thermal Engn, Splaiul Independentei 313, Bucharest 060042, Romania

来源：

ENERGIES | 2019年 / 12卷 / 11期

关键词：

solar cooling; absorption chiller; LiBr-H2O; operating conditions; climatic conditions; LIBR-H2O ABSORPTION CHILLER; DRIVEN; REFRIGERATION; ABSORBER; SYSTEMS;

D O I：

10.3390/en12112113

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The study carried out by simulation, concerns the thermal behavior of an office building's solar fresh air cooling system, based on a LiBr-H2O absorption chiller in different climatic conditions. The coefficient of performance (COP) and the solar fraction were considered performance parameters and were analyzed with respect to the operating limitsthe risk of crystallization and maintaining at least a minimum degassing zone. A new correlation between the required solar hot temperature and the cooling water temperature was established and then embedded in another new correlation between the COP and the cooling water temperature that was used in simulations during the whole cooling season corresponding to each location. It was found thatthe solar hot water should be maintained in the range of (80-100) degrees C depending on the cooling water temperature, the COP of the solar LiBr-H2O absorption chiller with or without cold storage tank could reach (76.5-82.4)% depending on the location, and the solar fraction could reach (29.5-62.0)% without cold storage tank and could exceed 100% with cold storage tank, and the excess cooling power being available to cover other types of cooling loadsthrough the building envelope, from lighting, and from occupants, etc.

引用

页数：22

共 30 条

[1]

Badescu V., 2011, ENERGY, V36, p142 , DOI [10.1016/j.renene.2010.06.015, DOI 10.1016/J.RENENE.2010.06.015]

[2] Warm season cooling requirements for passive buildings in Southeastern Europe (Romania) [J].

Badescu, Viorel ;

Laaser, Nadine ;

Crutescu, Ruxandra .

ENERGY, 2010, 35 (08) :3284-3300

[3] Dynamic Simulation of an Absorption Cooling System with Different Working Mixtures [J].

Cerezo, Jesus ;

Romero, Rosenberg J. ;

Ibarra, Jonathan ;

Rodriguez, Antonio ;

Montero, Gisela ;

Acuna, Alexis .

ENERGIES, 2018, 11 (02)

[4] Experimental Study of a Bubble Mode Absorption with an Inner Vapor Distributor in a Plate Heat Exchanger-Type Absorber with NH3-LiNO3 [J].

Chan, Jorge J. ;

Best, Roberto ;

Cerezo, Jesus ;

Barrera, Mario A. ;

Lezama, Francisco R. .

ENERGIES, 2018, 11 (08)

[5] Experimental investigation on a novel air-cooled single effect LiBr-H2O absorption chiller with adiabatic flash evaporator and adiabatic absorber for residential application [J].

Chen, J. F. ;

Dai, Y. J. ;

Wang, H. B. ;

Wang, R. Z. .

SOLAR ENERGY, 2018, 159 :579-587

[6] Experimental and analytical study on an air-cooled single effect LiBr-H2O absorption chiller driven by evacuated glass tube solar collector for cooling application in residential buildings [J].

Chen, J. F. ;

Dai, Y. J. ;

Wang, R. Z. .

SOLAR ENERGY, 2017, 151 :110-118

[7]

Duffie J. A, 1980, SOLAR ENG THERMAL PR

[8]

Farnos J., DYNAMIC MODELLING AI

[9] Experimental comparison of two solar-driven air-cooled LiBr/H2O absorption chillers: Indirect versus direct air-cooled system [J].

Lizarte, R. ;

Izquierdo, M. ;

Marcos, J. D. ;

Palacios, E. .

ENERGY AND BUILDINGS, 2013, 62 :323-334

[10] Comparison of Different Solar-Assisted Air Conditioning Systems for Australian Office Buildings [J].

Ma, Yunlong ;

Saha, Suvash C. ;

Miller, Wendy ;

Guan, Lisa .

ENERGIES, 2017, 10 (10)

← 1 2 3 →