New cermet film structures with much improved selectivity for solar thermal applications

1992 ◽  
Vol 60 (5) ◽  
pp. 545-547 ◽  
Author(s):  
Qi‐Chu Zhang ◽  
David R. Mills
Keyword(s):  
Solar Thermal ◽  
Cermet Film ◽  
Solar Thermal Applications

Fault Analysis of Solar Thermal Systems in Bhutan

2021 ◽  
pp. 60-71
Author(s):  
Tshewang Darjay ◽  
Cheku Dorji ◽  
Tshewang Lhendup ◽  
Martin Elborg
Keyword(s):  
User Behavior ◽  
Policy Instrument ◽  
Fault Analysis ◽  
Solar Thermal ◽  
Second Phase ◽  
Thermal Systems ◽  
Field Surveys ◽  
Government Sector ◽  
Solar Thermal Applications ◽  
Secondary Information

The Royal Government of Bhutan has accorded the highest priority towards diversifying the energy-mix through the promotion of renewable energy technologies. There is a national target to generate 3 MW equivalent of energy from the installation of solar thermal systems alone. However, little investment and priority are given for development of solar thermal applications. Some of the present existing solar water heating (SWH) systems are exhibiting faults which leads to low consumer confidence in SWH technology due to the non-functioning of previous installations which is very detrimental in this introductory stage. This study aims to identify problems of existing SWH systems through field surveys and develop a draft guideline to avoid faults in the future. To analyse the problems with existing SWH systems in Bhutan, the first phase of the study consists of collecting secondary information and opinion from the relevant government sector, local installing companies and end-users. The information on the manufacturer’s products, policy barriers, markets and consumer challenges is also collected. Base on this information, findings on the limitation of existing policy instrument and gap in demand and supply side is described. The second phase of the study comprises field visits to existing SWH system sites. The field surveys of twelve representative existing SWH systems are analyzed. Out of twelve sites, eight SWH systems had critical faults which causes major failure of the system and the other four sites had minor faults. To analyse the faults of existing SWH systems, faults are classified into design faults, plumbing circuit faults, solar collector faults, absorber faults, installation faults and user behavior faults. The major faults which lead to the failure of the existing SWH system are plumbing failure, condensation inside the collector and absorber tube leakage. The causes and solutions of the faults are discussed.

scholarly journals Absorption characteristics of a metal-insulator-metal nanodisk for solar thermal applications

2020 ◽  
Vol 28 (10) ◽  
pp. 15731 ◽  
Author(s):  
Caiyan Qin ◽  
Yanming Guo ◽  
Junyong Seo ◽  
Yong Shuai ◽  
Jungchul Lee ◽  
...  
Keyword(s):  
Solar Thermal ◽  
Metal Insulator ◽  
Metal Insulator Metal ◽  
Solar Thermal Applications ◽  
Absorption Characteristics

Spectrally selective CrMoN/CrON tandem absorber for mid-temperature solar thermal applications

2013 ◽  
Vol 109 ◽  
pp. 97-103 ◽  
Author(s):  
N. Selvakumar ◽  
S. Santhoshkumar ◽  
S. Basu ◽  
A. Biswas ◽  
Harish C. Barshilia
Keyword(s):  
Solar Thermal ◽  
Spectrally Selective ◽  
Solar Thermal Applications

Greenhouse Solar Thermal Application

2013 ◽  
pp. 462-479
Author(s):  
Tribeni Das ◽  
Ganesh C Bora
Keyword(s):  
Flat Plate ◽  
Crop Production ◽  
Research Work ◽  
Agricultural Products ◽  
Photovoltaic System ◽  
Solar Thermal ◽  
Basic Knowledge ◽  
Solar Thermal Applications ◽  
Flat Plate Collector ◽  
Work Done

This chapter includes brief description of different solar thermal applications of greenhouse structure based on the different research work done in this area. It provides the basic knowledge of the use of solar energy to increase the production of different agricultural products using greenhouse system, e.g., crop production and drying of agricultural products. The chapter includes the introduction of greenhouse system, the definition, the concept, and the importance of greenhouse technology. The uses of various solar thermal applications in different greenhouse systems such as flat plate collector in greenhouse fish pond system and application of photovoltaic system in greenhouse drying are covered in this chapter.

Solar selective coatings and materials for high-temperature solar thermal applications

2021 ◽  
pp. 383-427 ◽  
Author(s):  
Ramón Escobar Galindo ◽  
Matthias Krause ◽  
K. Niranjan ◽  
Harish Barshilia
Keyword(s):  
High Temperature ◽  
Solar Thermal ◽  
Solar Thermal Applications
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