A Similarity Principle Research Method for Solar Heating System with Seasonal Water Tank Heat Storage

2012 ◽  
Author(s):  
Dongliang Sun ◽  
Jinliang Xu
Keyword(s):  
Research Method ◽  
Heat Storage ◽  
Heating System ◽  
Solar Heating ◽  
Water Tank ◽  
Similarity Principle

scholarly journals Review on application of phase change material in water tanks

2017 ◽  
Vol 9 (7) ◽  
pp. 168781401770359 ◽  
Author(s):  
Ling Xie ◽  
Liu Tian ◽  
Lulu Yang ◽  
Yifei Lv ◽  
Qianru Li
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Heat Storage ◽  
Solar Heating ◽  
Water Tank ◽  
Latent Heat Storage ◽  
Heating Systems ◽  
Practical Applications ◽  
Water Tanks ◽  
Change Material

Latent heat storage with phase change material is a superior way of storing thermal energy because of its high thermal storage density, isothermal nature of the storage process, and easy control. In recent years, latent heat storage systems have been increasingly used in building energy conservation, solar heating systems, and waste heat recovery systems. The water tank as a key component of solar heating systems has been widely applied in practical applications. This article first reviews the research on the water tank integrated with phase change material in terms of existing research methods and heat transfer enhancing technologies and then summarizes the applications of various phase change material–based water tanks. Finally, the further research suggestions on the phase change material–based water tank are proposed in this article. The successful completion of this review will not only deepen the understanding on the research development of phase change material–based water tank but also promote practical applications of such water tanks in solar heating systems.

Indoor Air Temperature Analysis of Solar Heating System With Dual Heat Storage Devices

2019 ◽  
Vol 141 (5) ◽  
Author(s):  
Yu Qihui ◽  
Hao Xueqing ◽  
Tan Xin
Keyword(s):  
Mathematical Model ◽  
Air Temperature ◽  
Indoor Air ◽  
Storage Tank ◽  
Heat Storage ◽  
Heating System ◽  
Solar Heating ◽  
Minimum Size ◽  
Temperature Characteristics ◽  
Storage Devices

Using solar energy for space heating is an efficient and simply way to satisfy the energy demands of buildings. In this study, a typical office building is selected as a case model to obtain indoor air temperature characteristics with dual heat storage devices. By analyzing our solar heating system, a mathematical model of the system working process is set up. Using the software matlab/simulink for simulation, the indoor air temperature characteristics in 1 day are obtained. Simulation and experimental results show good consistency. And using the mathematical model, the storage tank size is optimized to search for the minimum size for the fixed building. Based on our analysis, the optimum ratio of storage tank A volume and collector field area is 0.11 m. This research can be a good reference for the design of the solar heating system.

An Analysis of the Heating in Passive Solar Room With Greenhouse

2008 ◽  
Author(s):  
Wei Chen ◽  
Feng Jia Gao
Keyword(s):  
Numerical Simulation ◽  
Gas Flow ◽  
Heat Storage ◽  
Heating System ◽  
Solar Heating ◽  
Solar Absorber ◽  
Passive Solar ◽  
System Properties ◽  
Unsteady Numerical Simulation ◽  
And Storage

In this paper, heating and heat storage in passive solar heating room with greenhouse has been studied. The unsteady numerical simulation is employed to analyze the performance of the flow and temperature field for the typical sunny day of Wuhan, China, in winter in the heating system. The heat storage layer of passive solar heating room has a great effect on temperature distribution and gas flow in heat storage layer of this system. Properties of the bed worked as solar absorber and storage layer have also been studied.

Thermal Performance of a Large Low Flow Solar Heating System With a Highly Thermally Stratified Tank

2005 ◽  
Vol 127 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Simon Furbo ◽  
Niels Kristian Vejen ◽  
Louise Jivan Shah
Keyword(s):  
Thermal Performance ◽  
Heat Exchangers ◽  
Heating System ◽  
External Heat ◽  
Solar Heating ◽  
Hot Water ◽  
Low Flow ◽  
Water Tank ◽  
Solar Collectors ◽  
Domestic Water

In year 2000 a 336 m2 solar domestic hot water system was built in Sundparken, Elsinore, Denmark. The solar heating system is a low flow system with a 10000 l hot-water tank. Due to the orientation of the buildings half of the solar collectors are facing east, half of the solar collectors are facing west. The collector tilt is 15° from horizontal for all collectors. Both the east-facing and the west-facing collectors have their own solar collector loop, circulation pump, external heat exchanger and control system. The external heat exchangers are used to transfer the heat from the solar collector fluid to the domestic water. The domestic water is pumped from the bottom of the hot-water tank to the heat exchanger and back to the hot-water tank through stratification inlet pipes. The return flow from the DHW circulation pipe also enters the tank through stratification inlet pipes. The tank design ensures an excellent thermal stratification in the tank. The solar heating system was installed in May 2000. The thermal performance of the solar heating system has been measured in the first two years of operation. Compared to other large Danish solar domestic hot water systems the system is performing well in spite of the fact that the solar collectors are far from being orientated optimally. The utilization of the solar radiation on the collectors is higher, 46% in the second year of operation, than for any other system earlier investigated in Denmark, 16%–34%. The reason for the good thermal performance and for the excellent utilization of the solar radiation is the high hot-water consumption and the good system design making use of external heat exchangers and stratification inlet pipes.

The Design of Solar Heating System Used in Oilfield

2012 ◽  
Vol 461 ◽  
pp. 389-392
Author(s):  
Peng Min Dong ◽  
Bo Zhao ◽  
Zong Liang Zhu ◽  
Yong Dong Qiang ◽  
Zhi Gang Yao ◽  
...  
Keyword(s):  
Solar Collector ◽  
Heating System ◽  
Great Emphasis ◽  
Solar Heating ◽  
Electrical Heating ◽  
Water Tank ◽  
Severe Condition ◽  
Expected Effect ◽  
Auxiliary Power ◽  
Pipeline Design

Based on the natural environment of YuMen oilfield, we designed solar collector and auxiliary power heating system. We lay great emphasis on the area of the collector , auxiliary electrical heating power,the volume of water tank and pipeline design in this system. After being used, this system warmth achieves the expected effect and meets the requirement of heating in severe condition such as Yumen in china.

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