scholarly journals Solar house heating system using reflective pyramid optical condensing system. Evaluation of performance, June 1, 1975--December 31, 1976

1978 ◽  
Author(s):  
2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Nidal Abdalla

The present study involves a validated TRNSYS model for solar assisted space heating system as applied to a residential building in Jordan using new detailed radiation models of the TRNSYS 17.1 and geometric building model Trnsys3d for the Google SketchUp 3D drawing program. The annual heating load for a building (Solar House) which is located at the Royal Scienti?c Society (RS5) in Jordan is estimated under climatological conditions of Amman. The aim of this Paper is to compare measured thermal performance of the Solar House with that modeled using TRNSYS. The results showed that the annual measured space heating load for the building was 6,188 kWh while the heati.ng load for the modeled building was 6,391 kWh. Moreover, the measured solar fraction for the solar system was 50% while the modeled solar fraction was 55%. A comparison of modeled and measured data resulted in percentage mean absolute errors for solar energy for space heating, auxiliary heating and solar fraction of 13%, 7% and 10%, respectively. The validated model will be useful for long-term performance simulation under different weather and operating conditions.


2014 ◽  
Vol 548-549 ◽  
pp. 626-630
Author(s):  
Yu Feng Jing ◽  
Guo Zhong Ding ◽  
Jia Jiang Miao ◽  
Chang Kai Ou ◽  
Jun Yi Tan

Constructing a solar house with a solar vacuum tube heat collector to produce hot water , and using hot water to drive the low-temperature floor heating system for heating. The test results indicate that the indoor average temperature (IAT) would be 7.62°C under the condition of no solar radiation and the outdoor average temperature (OAT) at 2.17°C, ,and then it carried on the heating compensation system, the IAT reaches to 16.35°C when setting the heating water flow is 0.1m/s ,inlet water temperature is 45°C,at 5°Ctemperature difference; When the average intensity of solar radiation is 62W/m2 and OAT is 5.15°C, the IAT is 12.74°C, at the same heating conditions , the IAT reaches 19.74°C by floor heating, and it can control the indoor temperature in a comfortable area ,so the floor heating system has a clear effect on the peak load shifting of house heating.


Author(s):  
Hanaa M. Farghally ◽  
Faten H. Fahmy ◽  
Amal A. Hassan ◽  
Ninet M. Ahmed

The rate of increase in energy consumption and high costs in addition to the depletion of existing resources has a significant impact on our standard of living for next generations. In this case, the priority is to develop alternative cost-effective sources for powering the residential and non-residential buildings. This paper proposes and develops a design of a modified small two-story residential solar house for a medium-sized family located in Cairo, Egypt. This modified solar house meets almost all its energy demands including space heating by using solar air collector with a pebble storage unit in winter and a summer cooling system using wind catcher theory. Hot water is obtained throughout the day by using a steel sheltered water storage tank with a capacity of 1000 liter. Finally, the proposed heating system of the solar house is sized and modeled.


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