Optimization of Solar Water Heating System under Time and Spatial Partition Heating in Rural Dwellings
| Autor: | Tao Li, Dengjia Wang, Chen Yaowen, Yanfeng Liu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Control and Optimization 020209 energy Nuclear engineering optimization solar water heating system time and spatial partition heating continuous and whole space heating passive solar houses TRNSYS Use of time Spatial partition Energy Engineering and Power Technology 02 engineering and technology Thermal energy storage lcsh:Technology Storage water heater 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Engineering (miscellaneous) Waste management lcsh:T Renewable Energy Sustainability and the Environment business.industry Storage heater Volume (thermodynamics) business Energy (miscellaneous) Solar water heating system |
| Zdroj: | Energies; Volume 10; Issue 10; Pages: 1561 Energies, Vol 10, Iss 10, p 1561 (2017) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en10101561 |
| Popis: | This paper proposes the application of time and spatial partition heating to a solar water heating system. The heating effect and system performance were analyzed under the continuous and whole space heating and time and spatial partition heating using TRNSYS. The results were validated by comparing with the test results of the demonstration building. Compared to continuous and whole space heating, the use of time and spatial partition heating increases the solar fraction by 16.5%, reduces the auxiliary heating by 7390 MJ, and reduces the annual operation cost by 2010 RMB. Under time and spatial partition heating, optimization analyses were conducted for the two system capacity parameters of the solar collector area and tank volume and the one operation parameter of auxiliary heater setting outlet temperature. The results showed that a reasonable choice of the solar collector area can reduce the dynamic annual cost, the increased tank volume is advantageous to heat storage, and the auxiliary heater setting outlet temperature have greater influence on the indoor heating effect. The advanced opening of solar water heating system and the normal opening of passive air vents are recommended. Based on the comparison of the two modes, the time and spatial partition heating technology is a better choice for rural dwellings. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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