A comprehensive review of techniques for increasing the efficiency of evacuated tube solar collectors

S Aggarwal, R Kumar, D Lee, S Kumar, T Singh - Heliyon, 2023 - cell.com
With the growing energy needs, a conscious effort has been made to use non-conventional
energy sources to generate clean energy efficiently. Solar energy has always been popular …

[HTML][HTML] Convective heat transfer enhancement using impingement jets in channels and tubes: a comprehensive review

R Kumar, R Nadda, S Kumar, S Saboor… - Alexandria Engineering …, 2023 - Elsevier
The industries utilize fluid heating and cooling in various applications such as production,
power generation, electronics, and transportation. Many techniques have been …

Investigation of thermal performance of a ribbed solar air heater for sustainable built environment

Y Agrawal, JL Bhagoria, A Gautam, A Sharma… - Sustainable Energy …, 2023 - Elsevier
Solar air heater plays a crucial role for development of sustainable built environment, which
can fulfil the need of heating load of building by harnessing solar energy. A solar air heater …

Thermal and effective assessment of solar thermal air collector with roughened absorber surface: an analytical examination

R Kumar, M Sethi, V Goel, MK Ramis… - … Journal of Low …, 2024 - academic.oup.com
The current work analyses the thermal (η th) and effective efficiency () of a solar thermal air
collector (STAC) that has an arc-shaped dimple as a roughness geometry on the absorber …

Thermal performance of two evacuated tube solar collectors with flat heat pipes

D Zhang, Y Diao, Z Wang, Y Pan, M Sun… - Applied Thermal …, 2024 - Elsevier
To promote the transition to clean heating methods in rural areas and improve solar energy
utilization efficiency, two new types of solar water collectors with evacuated tubes, namely …

Effect of jet-impingement and surface roughness on performance of solar air heater: Experimental study and its optimization

A Sharma, S Thakur, P Dhiman, R Kumar - Expert Systems with …, 2024 - Elsevier
The performance of solar air heaters can be improved by either active or passive
techniques. In this research manuscript, both active and passive technique is used to …

Thermal performance and experimental analysis of stainless steel flat plate solar collector with full-flow channels

Y He, H Yu, G Duan, Y Wang, Q Yang, L Feng, J Zhang - Heliyon, 2024 - cell.com
The thermal performance of a flat plate solar collector (FPSC) is a critical indicator that
depends on the environment, operational parameters, and dimensions. This study examines …

Influence of impingement jet designs on solar air collector performance

FNM Elwekeel, AAEF Nasr, MI Radwan, WIA Aly - Renewable Energy, 2024 - Elsevier
The present work shows the impact of jet shapes and absorber plate spacing on the
performance of heat transfer and pressure drop in solar air collectors experimentally …

Experimental investigation of thermohydraulic performance of solar thermal collector for sustainable built environment

NK Gupta, T Alam - Sustainable Energy Technologies and Assessments, 2023 - Elsevier
Solar heating is a low-cost option for heating buildings, which help in the development of a
sustainable built environment as it can fulfil the building heating demand. For this purpose …

Experimental and Numerical Characterisation of a Non-Tubular Stirling Engine Heater for Biomass Applications

D García, MJ Suárez, E Blanco, JI Prieto - Sustainability, 2022 - mdpi.com
In the current context of environmental deterioration and rising energy costs, systems based
on Stirling engines are interesting not only because of their proven efficiency and very low …