Theoretical comparison of solar water/space-heating combi systems and stratification design options

被引：35

作者：

Andersen, E. ^{[1
]}

Furbo, S. ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Civil Engn, DK-2800 Lyngby, Denmark

来源：

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME | 2007年 / 129卷 / 04期

关键词：

solar combi system design; solar combi system size; space heating system; inlet stratifier; net utilized solar energy; solar fraction;

D O I：

10.1115/1.2770752

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：

A theoretical analysis of differently designed solar combi systems is performed with weather data from the Danish Design Reference Year (55 deg N). Three solar combi system designs found on the market are investigated. The investigation focuses on the influence of stratification on the thermal performance under different operation conditions with different domestic hot water and space heating demands. The solar combi systems are initially equipped with heat exchanger spirals and direct inlets to the tank. A step-by-step investigation is performed demonstrating the influence on the thermal performance of using inlet stratification pipes at the different inlets. Also, how the design of the space heating system, the control system of the solar collectors, and the system size influence the thermal performance of solar combi systems are investigated. The work is carried out within the Solar Heating and Cooling Programme of the International Energy Agency (IEA SHC), Task 32.

引用

页码：438 / 448

页数：11

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