scholarly journals Optical-thermal-mechanical coupled analysis for efficiency calculation of a new innovative concentrating solar collector for medium-temperature applications.

2020 ◽  
Author(s):  
Leticia Aldaz ◽  
Amaia Mutuberria ◽  
Ana Bernardos
Keyword(s):  
Solar Collector ◽  
Coupled Analysis ◽  
Medium Temperature ◽  
Efficiency Calculation ◽  
Temperature Applications

Straight-through all-glass evacuated tube solar collector for low and medium temperature applications

Solar Energy ◽  
2020 ◽  
Vol 201 ◽  
pp. 935-943 ◽  
Author(s):  
Jing-hu Gong ◽  
Zheng Jiang ◽  
Xian-feng Luo ◽  
Bin Du ◽  
Jun Wang ◽  
...  
Keyword(s):  
Solar Collector ◽  
Medium Temperature ◽  
Evacuated Tube Solar Collector ◽  
Evacuated Tube ◽  
Temperature Applications

PCM integrated glass in glass tube solar collector for low and medium temperature applications: Thermodynamic & techno-economic approach

Energy ◽  
2020 ◽  
Vol 198 ◽  
pp. 117238 ◽  
Author(s):  
K. Chopra ◽  
V.V. Tyagi ◽  
A.K. Pandey ◽  
Ravi Kumar Sharma ◽  
Ahmet Sari
Keyword(s):  
Solar Collector ◽  
Glass Tube ◽  
Economic Approach ◽  
Medium Temperature ◽  
Temperature Applications

scholarly journals Characterization of Thermal Losses in an Evacuated Tubular Solar Collector Prototype for Medium Temperature Applications

2014 ◽  
Vol 57 ◽  
pp. 2121-2130 ◽  
Author(s):  
O. Arés-Muzio ◽  
I. Lizama-Tzec ◽  
J.D. Macias ◽  
G. Oskam ◽  
A. Cahue ◽  
...  
Keyword(s):  
Solar Collector ◽  
Medium Temperature ◽  
Temperature Applications

scholarly journals Dynamic thermal performance of four encapsulated PCM spheres for domestic medium temperature applications

2019 ◽  
Vol 158 ◽  
pp. 4375-4382 ◽  
Author(s):  
Ashmore Mawire ◽  
Katlego Lentswe ◽  
Denis Okello ◽  
Robert Lugolole ◽  
Karidewa Nyeinga ◽  
...  
Keyword(s):  
Thermal Performance ◽  
Medium Temperature ◽  
Temperature Applications

Design and Selection of Turbo-Machinery for Solar and Geothermal Power Plants

2010 ◽  
Author(s):  
Justin Zachary
Keyword(s):  
Power Plants ◽  
Waste Heat ◽  
Cyclic Behavior ◽  
Plant Design ◽  
Steam Turbines ◽  
Medium Temperature ◽  
Geothermal Power ◽  
Turbo Machinery ◽  
The Impact ◽  
Temperature Applications

Several important sources of renewable energy, such as biomass, concentrated solar panels, waste heat, geothermal, or tidal, use different types of turbo-machinery for conversion to electrical power. The diverse nature of the heat sources and their cyclic behavior make the design of the turbo-machinery power generation equipment quite different than that of the steam turbines used in conventional power plants. The high capital cost of these renewable facilities and the limited hours of operation are powerful drivers to increase the turbo-machinery efficiency. The paper reviews the state-of-the-art hardware designs for each application from an engineering, procurement, and construction (EPC) Contractor’s perspective. Specifically for geothermal power, the discussion covers the application of working fluids other than steam, organic fluid, various mixtures of fluids etc. The benefits and limitations of each method are addressed, along with the impact of geothermal source flow and temperature on the cycle efficiency. The paper also covers the special requirements for single- and multiple-stage arrangements for geothermal applications. For concentrated thermal solar either in high-temperature applications, such as the power tower, or in medium-temperature applications, such as the solar troughs collector field, the paper addresses the unique requirements for performance, integration, and fast startup of the turbines, including the impact of various thermal storage options. Since most of the concentrated thermal solar applications are in arid regions, the paper discusses the heat sink selection (air-cooled condenser [ACC], hybrid, Heller tower, etc.) and how it impacts the plant design and performance. In conclusion, the paper deals with practical issues of achieving a balance between the economics of generation and cost of equipment and reliability for renewable power plants.

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