... study using the real-time data of ambient temperature and solar irradiative flux. The results of the numerical study are used to calculate the derived parameters such as Nusselt number, heat losses, and collector thermal efficiency by varying the water flowrate. The study shows that the heat transfer...

.... The technology can be retrofitted into existing CSP facilities to improve operational efficiency, and it can be used to relax the stability requirements of heliostats, and thus their cost, in the planning of new ones. Email: bernhard@bernhard-adams.com Contributed by the Solar Energy Division of ASME...

... the published form of this work, or allow others to do so, for United States government purposes. 08 12 2023 04 03 2024 06 03 2024 30 07 2024 Graphical Abstract Figure heliostat composites structural components clean energy collector efficiency environment...

... scenarios: business as usual (BAU), continuous improvement scenario (CIS), and accelerated improvement scenario (AIS). BAU scenario assumes that the current energy efficiency ratio (EER) of 11.8 BTU/Wh is maintained until 2030. CIS considers a 5% EER improvement in new AC stock every two or five years...

... of the U.S. Government. ASME disclaims all interest in the U.S. Government’s contributions. 31 07 2023 04 05 2024 05 05 2024 13 06 2024 Graphical Abstract Figure simulation energy efficiency uncrewed underwater vehicles phase change material optimization clean...

... into the factors which impact the particle egress and the receiver's efficiency. Particle temperature, receiver flow configuration, and wind speed were found to be the most impactful factors in the study. 1 Corresponding author. Email: jdortega4@unm.edu Email: ckho@sandia.gov Email: guilleanaya...

...) are devices that efficiently transfer heat from the evaporator to the condenser. The inclination angle of wicked, liquid-filled HP's long-axis determines how well it cools, as an effect of the gravitational force acting on the condensed liquid. This study investigates the effect of tilting the HP long-axis...

... . 10.1109/JRPROC.1958.286932 [6] Meir , S. , Stephanos , C. , Geballe , T. , and Mannhart , J. , 2013 , “ Highly-Efficient Thermoelectronic Conversion of Solar Energy and Heat Into Electric Power ,” J. Renew. Sustain. Energy , 5 ( 4 ), p. 043127 . 10.1063/1.4817730 [7...

... Graphical Abstract Figure solar still nanofluids heat transfer thermal energy thermal exergy thermophysical properties photovoltaic carbon quantum dots clean energy collector conservation efficiency environment parabolic trough photovoltaics renewable storage sustainability...

.... The energy efficiency ratio has a maximum value of 6.1, with an average of 4.3, whereas the thermal COP has an average of 0.35 and a maximum value of 0.52 when run with thermal energy storage alone. Table 3 Instruments used to record the data Measurement type Sensor type Range Uncertainty...

... about 10.4 °C higher temperature gains in concentrating DASC system, and the photo-thermal efficiency was enhanced up to 40% as compared to base fluid water. The study demonstrates the advantage of an eco-friendly, low cost, and highly stable hybrid heat transfer fluid as a potential candidate...

... temperature, Reynolds number, nanoparticle size, and concentration in order to record the subsequent effects on the deposition efficiency, heat transfer coefficient, and pressure drop. There is no direct particle deposition model available in commercial computational packages such as fluent , so a deposition...

... coefficient is compared to that obtained for a traditional circular-shaped tube. Moreover, the energy balance model is adapted to simulate the thermal efficiency of the considered tubes as a function of the deviation angle with some assumptions. The obtained results prove that from a deviation angle value...

... 09 08 2023 27 09 2023 CFD circular and triangular geometry pitch ratio height ratio heat transfer enhancement thermal performance clean energy efficiency renewable simulation solar sustainability A solar air heater (SAH) is one of the traditional solar collector...

... achieved 4.4 kW of cooling and an overall COP of 0.48 with approximately 87% power cycle conversion efficiency, which recovered waste heat from diesel engines and other power cycles. Hu et al. [ 70 ] conducted the thermodynamic analysis of an ORC–VCC system driven by solar energy to make ice, achieving...

... on a typical summer day in Jeddah, we found that the integrated system could fulfill the cooling and power demands of the medical center under study with an exergetic efficiency of 53.97%. From an economics perspective, the integrated system was found to deliver cooling and power with average unit costs...

... if they were to operate separately to meet the same cooling load. In addition, the article investigates the impact of a performance-enhanced parabolic trough collector (PEPTC) on the thermal and exergetic efficiencies of the solar cooling system. By employing a PEPTC, the area required for the solar field...

... at 255 °C is another big use of heat [ 10 ]. PWF systems have the advantage of far higher efficiency in regions of moderate DNI (Fig. 2 ) where such applications are more likely to be found. In spite of the CST power block’s considerably higher efficiency than that of the PV modules...

... and exergetic efficiencies of multigeneration systems. These equivalent efficiencies will be used as performance indicators of a multigeneration system as if it were producing only one of its products. The new procedure will be applied to three case studies in this paper. Results of this work indicate...

... in the J ournal of S olar E nergy E ngineering : I ncluding W ind E nergy and B uilding E nergy C onservation . 18 10 2022 06 04 2023 07 04 2023 02 05 2023 conservation efficiency environment simulation solar Agrivoltaics is a relatively new field...