An Analysis of the Heating in Passive Solar Room With Greenhouse

Author(s):  
Wei Chen ◽  
Feng Jia Gao

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.

2008 ◽  
Author(s):  
MOONKI (or initial) JANG ◽  
Yulong (or initial) Zhang ◽  
Zailin (or initial) Piao ◽  
YEONSUN (or initial) KIM

Author(s):  
M. H. de Wit ◽  
J. L. M. Hensen ◽  
H. A. L. van Dijk ◽  
G. J. van den Brink ◽  
E. van Galen

2020 ◽  
pp. 211-218
Author(s):  
L. Gourdo ◽  
H. Fatnassi ◽  
K. Achgar ◽  
A. Chraibi ◽  
B. Ouaddich ◽  
...  

Author(s):  
Wei Chen

In this paper, heat transfer and flow in the composite solar wall with porous absorber has been studied. The unsteady numerical simulation is employed to analyze the performance of the flow and temperature field in the composite solar wall. The excess heat is stored within the porous absorber during solar radiation and there is stratification in the porous layer. So, the porous absorber works as thermal insulator in a degree when no solar shining is available. The heating characteristic of two types of the composite solar wall with porous absorber has been conducted. The influence of particle size, porosity and porous absorber arrange in the solar composite wall on the heating room temperature is significant. The results show that all these factors should be taken into account for a better design of a heating system.


Processes ◽  
2019 ◽  
Vol 7 (12) ◽  
pp. 867 ◽  
Author(s):  
Ye Sun ◽  
Ren Chen ◽  
Zuoliang Zhang ◽  
Guoxi Wu ◽  
Huishu Zhang ◽  
...  

The physical and chemical processes in the raceway zone of the COREX melter–gasifier express are similar to those inside the blast furnace. Based on the research achievements on blast furnaces, the unsteady numerical simulation of a gas-solid two-phase in the raceway was carried out by using computational fluid software. The formation process of the raceway in the COREX melter–gasifier was simulated. The shape and size of the raceway were obtained. Then, the effect of gas flow on the depth and height of the raceway was analyzed in this paper.


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