scholarly journals Experimental Study on Biogas Digester Combined with Solar Heating System

2021 ◽  
Vol 261 ◽  
pp. 01003
Author(s):  
Jinhui Zhao ◽  
Xuexiu Bai ◽  
Xuwei Han
Keyword(s):  
Experimental Study ◽  
Heating System ◽  
Gas Production ◽  
Solar Heating ◽  
Fermentation Temperature ◽  
Temperature Requirements ◽  
Cold Area ◽  
Natural Temperature

In order to solve the problem of low gas production of biogas digester fermented at natural temperature in winter and possibly freezing biogas digester in northern cold areas, the biogas digester combined with solar heating system is proposed to maintain the normal fermentation temperature of biogas digester and ensure the continuous and efficient gas production of biogas digester throughout the year. Through the experiment and analysis of the system, in cold area, the temperature of biogas digester can be maintained above 12.5 °C, which can meet the temperature requirements of normal fermentation in biogas digester, so it is concluded that developing solar heating biogas digester project is feasible in cold area.

Experimental Study of Greenhouse Solar Energy Combined with Coal-Fired Boiler Heating System

2012 ◽  
Vol 178-181 ◽  
pp. 197-203 ◽  
Author(s):  
Xiao Lin Luo ◽  
Hua Shan Chen ◽  
Bing Chen ◽  
Hua Chen Fu
Keyword(s):  
Experimental Study ◽  
Solar Energy ◽  
Economic Value ◽  
Heating System ◽  
Environment Pollution ◽  
Operation Performance ◽  
Greenhouse Production ◽  
Temperature Requirements ◽  
High Heating ◽  
Heat Preservation

In order to explore the application methods and development potential of solar energy technology in facility agriculture, and to seek a solution to resolve problems existing in greenhouse production, such as high heating cost and serious environment pollution etc. , an experimental study was carried out on a solar energy combined coal-fired boiler heating system used for greenhouse. In this paper, with Kunming Trifecta Orchid Nursery Co. Ltd of Yunnan Flower Demonstration Garden for experimental research object, the general design and operation method for the system were introduced, and an experiment on operation performance and heating effect of the system was tested in Kunming. The results showed that whether it was sunny or cloudy, the system could make full use of solar energy, make the water temperature of heat preservation tank reach a certain expectation, and ensure the temperature requirements on different growing stages of phalaenopsis in greenhouse. So a theoretical basis is provided for the study on solar energy combined with coal-fired boiler heating system for greenhouse. Through economic analysis of the system, the results showed that this system had high economic value, energy saving and environmental protection performance.

Experimental Study on Parabolic Trough Solar Heating System

2014 ◽  
Vol 694 ◽  
pp. 155-158
Author(s):  
Bin Yang ◽  
Wei Wang ◽  
Lin Wang
Keyword(s):  
Experimental Study ◽  
Heat Source ◽  
Ambient Temperature ◽  
Solar Collector ◽  
Heating System ◽  
Loss Coefficient ◽  
Solar Heating ◽  
Parabolic Trough ◽  
Indoor Temperature ◽  
Parabolic Trough Solar Collector

Firstly, this paper introduces a solar heating system-the parabolic trough solar heating system .which uses the parabolic trough solar collector as the heat source. Secondly, experiments were given about the heating system, including the water temperature in the tank, the ambient temperature and the indoor temperature. Finally, we concluded the instantaneous efficiency and the loss coefficient of the system-the instantaneous efficiency of the system can reach 45% and the loss coefficient is ranged from 1.5 W/(m2•°C) to1.65W/(m2•°C).And in the condition of without auxiliary heat source and the ambient temperature is-5°C~3°C, the indoor temperature can reach 16 °C ~ 20 °C.

Study on Simulation for Solar Heating System for Biogas

2011 ◽  
Vol 383-390 ◽  
pp. 3499-3504
Author(s):  
Zhan Feng Liu ◽  
Yuan Su ◽  
Pei Zhang
Keyword(s):  
System Modeling ◽  
Heating System ◽  
Gas Production ◽  
Solar Heating ◽  
Methane Fermentation ◽  
Fermentation System ◽  
Northern Regions ◽  
New Ideas ◽  
Dynamic System Modeling ◽  
Main Factor

The anaerobic methane fermentation is sensitive to temperature, the higher the temperature, the more vigorous microbial activity, higher gas production. Therefore, the temperature is the main factor of methane fermentation. Northern regions due to low temperatures, biogas will be difficult to operate on their own, the need for digester heating. Solar heating is a heating system, biogas fermentation method. Effect of solar heating on the methane fermentation is one of the hotspots in this field. Using MATLAB to provide dynamic system modeling and simulation package Simulink, solar heating methane fermentation system model and algorithm, select the appropriate module on the biogas fermentation solar heating simulation, the method for solar heating in north China to provide a methane fermentation system some new ideas.

HEAT LOSS ANALYSIS AND OPTIMIZATION OF HOUSEHOLD SOLAR HEATING SYSTEM

2019 ◽  
Vol 50 (7) ◽  
pp. 659-670 ◽  
Author(s):  
Jieyuan Yang ◽  
Jinping Li ◽  
Rong Feng
Keyword(s):  
Heat Loss ◽  
Heating System ◽  
Solar Heating ◽  
Loss Analysis

Performance analysis of domestic solar air heating system using V-shaped baffles – An experimental study

2021 ◽  
pp. 095440892110162
Author(s):  
Vijayakumar Rajendran ◽  
Harichandran Ramasubbu ◽  
Karthick Alagar ◽  
Vignesh Kumar Ramalingam
Keyword(s):  
Experimental Study ◽  
Performance Improvement ◽  
Mass Flow ◽  
Thermal Efficiency ◽  
Heating System ◽  
Solar Air Heater ◽  
Absorber Plate ◽  
Air Heating ◽  
Mass Flow Rates ◽  
Carbon Dioxide Mitigation

An experimental study has been carried out to enhance a solar air heater’s performance by integrating artificial roughness through baffles on the absorber plate. In this paper, the thermal and energy matrices analysis of a Solar Air Heater (SAH) roughened with V up perforated baffles have been investigated. The effect of various mass flow rates on the SAH was analyzed with and without baffles. Experimental outputs like outlet air temperature, useful energy (heat) gain and thermal efficiency were evaluated to confirm the performance improvement. The baffled absorber plate SAH was found to give the maximum thermal efficiency and useful energy gain of 89.3% and 1321.37 W at a mass flow rate of 0.0346 kg/s, 13% and 12% higher than SAH without baffle. This result showed that the V up-shaped ribs in flow arrangement provide better thermal performance than smooth plate SAH for the parameter investigated. Energy matrices analysis and carbon dioxide mitigation of the SAH system were also analyzed.

Experimental study of hypervapotron channel with square fin structure for divertor cooling by one-side, electric joule heating system

2020 ◽  
Vol 161 ◽  
pp. 112072
Author(s):  
Ji Hwan Lim ◽  
Min Gyu Park ◽  
Hun Gyo Oh ◽  
Don Koan Hwang ◽  
Gi Cheol Lee ◽  
...  
Keyword(s):  
Experimental Study ◽  
Joule Heating ◽  
Heating System
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