scholarly journals The thermovoltaic effect in rare-earth semiconductors based on SmS and the conversion of thermal energy into electrical energy on its basis

2018 ◽  
Vol 1038 ◽  
pp. 012111
Author(s):  
M A Grevtsev ◽  
G D Havrov ◽  
S A Kazakov ◽  
V V Kaminskii
Keyword(s):  
Rare Earth ◽  
Thermal Energy ◽  
Electrical Energy ◽  
Thermovoltaic Effect

scholarly journals Электрические характеристики термовольтаического элемента на основе сульфида самария

2020 ◽  
Vol 90 (10) ◽  
pp. 1739
Author(s):  
М.А. Гревцев ◽  
С.А. Казаков ◽  
М.М. Казанин ◽  
В.В. Каминский
Keyword(s):  
High Temperature ◽  
Thermal Energy ◽  
Electrical Energy ◽  
Internal Resistance ◽  
Maximum Power ◽  
Electrical Characteristics ◽  
Optimal Load ◽  
Thermovoltaic Effect ◽  
Characteristic Maximum

The converter of thermal energy into electrical energy based on the thermovoltaic effect is considered. Samarium sulfide (SmS) samples obtained by high-temperature sintering were used as working material. The main electrical characteristics of the thermovoltaic element based on the thermovoltaic effect are determined: volt-ampere characteristic, maximum power, internal resistance. It is shown that the optimal load to obtain maximum power is equal to the internal resistance of the element.

DEVELOPMENT OF CONSTRUCTION OF THREE-INPUT GENERATING INSTALLATIONS ON BASED OF RENEWABLE ENERGY SOURCES

2018 ◽  
Author(s):  
Я.М. КАШИН ◽  
Л.Е. КОПЕЛЕВИЧ ◽  
А.В. САМОРОДОВ ◽  
Ч. ПЭН
Keyword(s):  
Renewable Energy ◽  
Kinetic Energy ◽  
Total Energy ◽  
Thermal Energy ◽  
Output Voltage ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Energy Sources ◽  
Voltage Regulator ◽  
The Sun

Описаны конструктивные особенности трехвходовой аксиальной генераторной установки (ТАГУ), преобразующей кинетическую энергию ветра и световую энергию солнца и суммирующей механическую, световую и тепловую энергию с одновременным преобразованием полученной суммарной энергии в электрическую. Показаны преимущества ТАГУ перед двухвходовыми генераторными установками. Дополнительное включение стабилизатора напряжения в схему ТАГУ позволило расширить область применения стабилизированной трехвходовой аксиальной генераторной установки за счет стабилизации ее выходного напряжения. The design features of the three-input axial generating installation (TAGI), which converts the kinetic energy of wind and light energy of the sun and sums the mechanical, light and thermal energy with the simultaneous conversion of the total energy into electrical energy, are described. The benefits of TAGI in front of the two-input generating installation shown. The additional introduction of a voltage regulator into the TAGI scheme allowed to expand the scope of the stabilized three-input axial generating installation by stabilizing its output voltage.

Potential for conversion of thermal energy in electrical energy: Highlighting the Brazilian Ocean Thermal Energy Park and the Inverse Anthropogenic Effect

2020 ◽  
Vol 161 ◽  
pp. 1155-1175
Author(s):  
Roberto Valente de Souza ◽  
Elisa Helena Leão Fernandes ◽  
José Luiz Lima de Azevedo ◽  
Mariana dos Santos Passos ◽  
Rafaela Martins Corrêa
Keyword(s):  
Thermal Energy ◽  
Electrical Energy ◽  
Anthropogenic Effect ◽  
Ocean Thermal Energy

A review on the application of photovoltaic thermal systems for building façades

2019 ◽  
Vol 41 (1) ◽  
pp. 86-107 ◽  
Author(s):  
Ahmad Riaz ◽  
Ruobing Liang ◽  
Chao Zhou ◽  
Jili Zhang
Keyword(s):  
Thermal Energy ◽  
Large Scale ◽  
Electrical Energy ◽  
Building Envelope ◽  
Hot Water ◽  
Working Fluid ◽  
Thermal Systems ◽  
Air Supply ◽  
Building Facades ◽  
Photovoltaic Thermal System

The hybrid photovoltaic-thermal system has shown great progress. Electrical energy is produced from PV panels while thermal energy is produced via a working fluid carried through the panels. In this paper, the vertical PV/T is introduced using working fluids such as air and liquid, which serve to control the excess temperature of the PV panels as well as to collect heat to be made available as thermal energy. Installations of PV/T systems on building façades, as well as integration with other technologies such as heat pipe and heat pump are also discussed. Current studies of such building integration technologies are also explored, including the scale of application. This study aims to provide constructive information which can be used in future development of building facades for large-scale applications, to contribute to future sustainable development. Practical application: This study helps researchers and engineers who are considering photovoltaic thermal systems for building façades to have better understanding of its effect on electrical and thermal energy – for space heating, fresh air supply and hot water supply – using an active building envelope.

scholarly journals Study of Hybrid PVA/MA/TEOS Pervaporation Membrane and Evaluation of Energy Requirement for Desalination by Pervaporation

2018 ◽  
Vol 15 (9) ◽  
pp. 1913 ◽  
Author(s):  
Zongli Xie ◽  
Derrick Ng ◽  
Manh Hoang ◽  
Jianhua Zhang ◽  
Stephen Gray
Keyword(s):  
Thermal Energy ◽  
Waste Heat ◽  
Energy Requirement ◽  
Electrical Power ◽  
Electrical Energy ◽  
Commercial Application ◽  
Heating And Cooling ◽  
Pervaporation Membrane ◽  
Multi Stage ◽  
Multiple Effect Distillation

Desalination by pervaporation is a membrane process that is yet to be realized for commercial application. To investigate the feasibility and viability of scaling up, a process engineering model was developed to evaluate the energy requirement based on the experimental study of a hybrid polyvinyl alcohol/maleic acid/tetraethyl orthosilicate (PVA/MA/TEOS) Pervaporation Membrane. The energy consumption includes the external heating and cooling required for the feed and permeate streams, as well as the electrical power associated with pumps for re-circulating feed and maintaining vacuum. The thermal energy requirement is significant (e.g., up to 2609 MJ/m3 of thermal energy) and is required to maintain the feed stream at 65 °C in recirculation mode. The electrical energy requirement is very small (<0.2 kWh/m3 of required at 65 °C feed temperature at steady state) with the vacuum pump contributing to the majority of the electrical energy. The energy required for the pervaporation process was also compared to other desalination processes such as Reverse Osmosis (RO), Multi-stage Flash (MSF), and Multiple Effect Distillation (MED). The electrical energy requirement for pervaporation is the lowest among these desalination technologies. However, the thermal energy needed for pervaporation is significant. Pervaporation may be attractive when the process is integrated with waste heat and heat recovery option and used in niche applications such as RO brine concentration or salt recovery.

Heat Response Model for Phase Layered Topology in A Photovoltaic Thermal System

2017 ◽  
Vol 7 (1) ◽  
pp. 52 ◽  
Author(s):  
Mohammad Taghi Hajibeigy ◽  
Chockalingam Aravind Vaithilingam ◽  
Mushtak Al-atabi ◽  
PRP Hoole
Keyword(s):  
Heat Transfer ◽  
Thermal Energy ◽  
Heat Removal ◽  
Electrical Energy ◽  
Aluminum Plate ◽  
Thermal System ◽  
Pv Module ◽  
Photovoltaic Thermal System ◽  
Heat Response ◽  
Photo Voltaic

The electrical and thermal energy generated by a Photo-voltaic (PV) module is based on the amount of the solar radiation directed on the PV module. In this study, a Photo-voltaic Thermal (PVT) system is constructed to maximize the electrical energy generation through the fast removal of heat through a new phase layered topology. The combinations of aluminum plate and heatsinks are used to transfer heat generated by sunlight radiation on PV modules to heat transfer thermal container. The aluminum plate is attached beneath the PV module and heatsinks welded beneath the alumni plate making it as a phase layered heat removal. The heat transfer on each layer of the photovoltaic thermal system is investigated with the phase changing topology and also investigated for its performance with a heat removal agent. In both cases, with and without water as coolant in the thermal container, the experimental outcome is analysed for performance analysis. It is found the PV temperature reduced by about 10 degrees which is cirtical for the PV performance reducing the wasted thermal energy and thereby increases the electrical energy conversion.

scholarly journals Metamaterial Concentrator for Thermal Energy Harvester

2020 ◽  
Vol 190 ◽  
pp. 00032
Author(s):  
Rapha Nichita Kaikatui ◽  
Adik Putra Andika ◽  
Vinsenius Letsoin ◽  
Paulus Mangera ◽  
Damis Hardiantono ◽  
...  
Keyword(s):  
Thermal Energy ◽  
Communication Systems ◽  
Energy Demand ◽  
Electrical Potential ◽  
Electrical Energy ◽  
Heat Energy ◽  
Small Scale ◽  
Alternative Source ◽  
Heating And Cooling ◽  
Technological Advances

Energy demand increases in line with rapid technological advances. Research on the harvesting of renewable energy continues to be done to make efforts to convert heat energy, which is very abundant in our daily environment. Thermoelectric technology is an alternative source in answering energy needs and can produce energy on a large and small scale. Thermoelectric technology works by converting heat energy into electricity directly, or from electricity to cold. This research presents an experimental study conducted to find out the thermoelectric characteristics of the TEC in the reversal function, with heating and cooling tests on each side of the TEC type thermoelectric element, carried out to obtain the voltage value as the electrical potential generated from this element. The result is thermoelectric potential to generate DC electricity but is very limited in the function of maintaining a heat source on the hot side element. This research then proposes thermal metamaterial that functions as a collector of thermal energy in the method of converting thermal energy into DC electrical energy for the application of low power consumption communication systems.

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