This study proposes the CFD analysis of a CPC-type solar air heater with U-shape double-pass airflow. The air first circulates through the trapezoidal cavity contained in the volume formed by the cover, the reflecting
This study proposes the CFD analysis of a CPC-type solar air heater with U-shape double-pass airflow. The air first circulates through the trapezoidal cavity contained in the volume formed by the cover, the reflecting walls of the CPC, and the flat-plate receiver and then circulates in counterflow through the receiver''s duct interior. The
Solar energy is a promising source of renewable energy, and solar air heaters are an important application for utilizing this energy source. This study investigates the exergetic
The motive for depending on nonconventional energy resources is the consumption rate of fossil fuels and their adverse effects on the global atmosphere. 1 Sun-based energy is a clean, renewable energy source with uses in food processing, power generation, space heating, desalination, water heating, cooking, horticulture, and current applications. 2 A solar air heater
A solar air collector (SAC) is a main device of a solar-thermal air system, which can absorb solar radiation and transfer the absorbed thermal energy to the air. This paper presents a...
DOI: 10.1016/J.APPLTHERMALENG.2021.117294 Corpus ID: 237661701; Energy, exergy, and economic analysis of tubular solar air heater with porous material: An experimental study @article{aboElfadl2021EnergyEA, title={Energy, exergy, and economic analysis of tubular solar air heater with porous material: An experimental study},
Enhancements in heat transfer, and consequently the thermohydraulic performance of solar air heaters (SAHs), are necessary to widen and optimize their use in many applications such as solar drying or heating buildings. In
Solar air heating is the most widely used for crop drying, building and space heating applications due to its technological maturity and economic viability.
Advanced solar air collectors are widely implemented in research for drying purposes. This research study presents a new steady state energy balance and exergy equations for a novel double pass solar air collector with fins and phase change material (PCM) according to first and second law of thermodynamics. The mathematical equations of energy
Owing to its great potential for solar energy and uniquely low relative humidity, Tibet is an ideal region for the application of solar-air source heat pump (SASHP) heating systems. This study aimed to evaluate the performance and optimize the key design parameters of a SASHP in Tibetan climatic conditions. A SASHP parallel system was designed
The results show that the introduction of solar energy can reduce the LCOS of the liquid air energy storage system by 4.1 %–13.67 % and the proposed optimized operation
Numerical modeling of thermal and aerodynamic processes taking place in a solar air heater with light-absorbing L-shaped fins is performed. The study is carried out by means of an ANSYS Fluent...
Singh I, Singh S (2018) CFD analysis of solar air heater duct having square wave profiled transverse ribs as roughness elements. Sol Energy 162:442–453. Article Google Scholar Singh S (2017) Performance evaluation of a novel solar air heater with arched absorber plate. Renew Energy 114:879–886
Through a detailed analysis of the existing literature, this review aims to provide a holistic understanding of the advancements and challenges in the field of solar air heating technology. 1. Introduction. Solar energy, a type of renewable energy, is highly regarded for its environmental friendliness and lack of negative impacts on the ecosystem.
Solar thermal utilization is one of the main solar energy technologies, and according to the data of the International Renewable Energy Agency (IRENA), the world''s total installed capacity of solar thermal utilization reached 6387 MW in 2021 (IRENA, 2022).Solar thermal utilization technology can be applied to power generation, space heating, crop drying
Enhancements in heat transfer, and consequently the thermohydraulic performance of solar air heaters (SAHs), are necessary to widen and optimize their use in many applications such as solar drying or heating
environmental implications associated with the utilization of solar air heaters. Through a detailed analysis of the existing literature, this review aims to provide a holistic understanding of the advancements and challenges in the field of solar air heating technology. Keywords: Solar air heater, rib, duct, efficiency, thermal hydraulic performance 1. Introduction Solar energy, a type
Ran et al. [17] proposed a novel form of a solar-air energy heat pump, in which the air heat exchanger and solar collector are connected in parallel on the evaporation side of the heat pump. The system can not only effectively use solar energy of different intensities, but also can control the operation of the air heat exchanger to ensure that the system can still supply
Thermodynamic and economic analysis of a novel combination of the heliostat solar field with compressed air energy storage (CAES); a case study at San Francisco, USA J Energy Storage, 49 ( February ) ( 2022 ), Article 104111, 10.1016/j.est.2022.104111
Adiabatic compressed air energy storage (A-CAES) is an effective balancing technique for the integration of renewables and peak-shaving due to the large capacity, high efficiency, and low carbon use. Increasing the inlet air temperature of turbine and reducing the compressor power consumption are essential to improving the efficiency of A-CAES. This paper proposes a novel
The implementation of a solar air heater (SAH) test bench holds significant promise in addressing both global change and sustainable development objectives. The primary goal of this study is to examine the aerodynamic configuration of a novel solar air heater test bench accessible at the Laboratory of Electro-Mechanic Systems (LASEM
The design of the collector was made to maximize the heat transfer and thermal energy utilization. Double pass solar air collectors allow for air to flow above and below the absorber plate and is proven to produce a higher rise in air temperature than its single-pass counterpart; this is mainly attributed to doubling the area of heat transfer without additional
Through a detailed analysis of the existing literature, this review aims to provide a holistic understanding of the advancements and challenges in the field of solar air heating technology.
Solar energy is a promising source of renewable energy, and solar air heaters are an important application for utilizing this energy source. This study investigates the exergetic performance of a louvered fin solar air heater (LFSAH) through experimental analysis conducted during day time from 9 am to 3 pm under identical operating
The implementation of a solar air heater (SAH) test bench holds significant promise in addressing both global change and sustainable development objectives. The primary goal of this study is to examine the
Numerical modeling of thermal and aerodynamic processes taking place in a solar air heater with light-absorbing L-shaped fins is performed. The study is carried out by means of an ANSYS Fluent...
The results show that the introduction of solar energy can reduce the LCOS of the liquid air energy storage system by 4.1 %–13.67 % and the proposed optimized operation strategy can increase the annual power output, resulting in a 0.2 %–0.4 % reduction in LCOS compared to the basic operation strategy. In addition, the impact of
A solar air collector (SAC) is a main device of a solar-thermal air system, which can absorb solar radiation and transfer the absorbed thermal energy to the air. This paper presents a...
Thermoaerodynamic characteristics and effective values of technological parameters for the effective use of a solar air heater are studied. The maximum thermoaerodynamic characteristic for the solar air heater with a finned lightabsorbing surface is 1.91 for Re = 1500, and the minimum test fin pitch is 30 mm. Content may be subject to copyright.
2.3. Efficiency Calculation The thermal efficiency of the collector is calculated as the ratio between the useful energy gained by the fluid on the collector’s cavity and absorber and the net solar energy on the collector’s aperture, using Equation (16):
Therefore, the incorporation of the first pass has a contribution of between 36% and 45% in useful energy gain, showing that this appropriate and relatively simple strategy can be implemented to improve the thermal performance of solar air collectors, resulting in instantaneous efficiencies higher than 75%.
The applications vary from space heaters and solar cookers to applications in different industrial processes of thermal nature and applications of solar drying (Abene et al., 2004, Gill et al., 2012, Kabeel et al., 2016, Sakhrieh and Al-Ghandoor, 2013).
A solar air heater is a thermal system which uses artificial roughness in the form of repeated ribs on the absorber plate to enhance the heat transfer rate. Forced convection heat transfer of air in a solar air heater with reverse L-shaped ribs has been carried out experimentally and numerically.
The parameters are calculated using the output of the numerical investigation which corresponds to a test of variable cases such as the variation of mass flowrates and solar irradiance levels, as well as testing their performance in four different design considerations such as incorporating PCM only, fins only, with and without both fins and PCM.
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