Economic optimization of low-flow solar domestic hot waterplants

被引：32

作者：

Cardinale, N

Piccininni, F

Stefanizzi, P

机构：

[1] Politecn Bari, Dipartimento Fis Tecn, I-70125 Bari, Italy

[2] Univ Basilicata, Dipartimento Ingn & Fis Ambiente, I-75100 Matera, Italy

来源：

RENEWABLE ENERGY | 2003年 / 28卷 / 12期

关键词：

domestic hot water; solar fraction; simulation; plate heat exchanger; photovoltaic pump; life cycle savings;

D O I：

10.1016/S0960-1481(03)00070-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A solar plant for hot-water production was investigated by the dynamic simulation code (TRNSYS). A typical daily home consumption for a 4 persons family was considered. The hot-water demand temperature (53 degreesC) is controlled by a conventional fuel auxiliary heater and a tempering valve. A heat-exchanger is considered between collector and storage tank. The fluids circulate by pumps activated by photovoltaic panels. This simplifies plant control systems and allows for stand-alone utilization of the plant. Annual energy performance, in terms of solar fraction, was calculated for three Italian localities. The economic viability of such a plant was evaluated with the life cycle savings (LCS) method, considering three conventional fuels (Gas-Oil, LPG and Electricity). Italian Government incentives show an economic viability only in comparison with electrical energy. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1899 / 1914

页数：16

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