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ISSN: 2666-1233

Sizing, optimization, control and energy management of hybrid renewable energy system—A review

•A review of the latest studies published in a hybrid renewable energy system.•This review focuses on sizing, optimization, control, and energy management.•The latest published methods are reviewed...

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Optimization of group control strategy and analysis of energy saving in refrigeration plant

•Overall optimization strategy for the primary pump variable flow system is studied.•Group control system optimization model coupled with sub modules is proposed.•Particle swarm optimization algorithm...

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Enhancement and validation of building integrated PV system: 3D modelling, techno-economics and environmental assessment

•BIPV system designs towards Net Zero Energy Building for tropical climate.•Adopted realistic meteorological data and design considerations for reliability.•Energy yield estimation and validated via...

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Evaluation of thermal comfort and air quality of low-income housing in Kampala City, Uganda

•Thermal comfort and air quality of low income housing was studied.•Model development for thermal improvement strategies was conducted.•Thermal comfort indoor conditions based on 80% acceptable limits...

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Can building orientation perturb micro-climatic conditions inside classrooms located in hot-humid climatic condition?

•Building orientation alters indoor thermal comfort.•Thermal comfort inside classrooms vary with floor level.•Thermal comfort index is relatively low inside classrooms in eastern block.•CFD simulations...

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Efficacy of coupling heat recovery ventilation and fan coil systems in improving the indoor air quality and thermal comfort condition

•A CFD model was proposed for simultaneous analysis of IAQ and thermal comfort.•The numerical model was validated against experimental data.•Interactions between MVHR and fan coil system were investigated.•Impact...

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Distributed photovoltaics with peer-to-peer electricity trading

•A P2P electricity trading system is designed for distributed photovoltaics.•The P2P electricity trading system consists of three functional layers.•The P2P market combines continues double auction...

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Review and development of the contribution ratio of indoor climate (CRI)

•An index known as the Contribution Ratio of Indoor Climate (CRI) is proposed.•The mathematical meaning of the CRI is discussed for the first time.•CRI distributions show different influence ranges...

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Performance analysis of solar driven combined recompression main compressor intercooling supercritical CO2 cycle and organic Rankine cycle using low GWP fluids

•Thermal performance improved with solar irradiation.•Thermal efficiency was improved by 7–8% by PDORC.•Low GWP working fluids are considered.•Maximum waste heat recovered by the R1243zf fluid.•Current...

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Impact of indoor air volume on thermal performance in social housing with mixed mode ventilation in three different climates.

•The impact of indoor air volume on the thermal performance in a social housing.•Analysis of energy demand based on the cooling, heating and comfort tasks.•Mixed mode ventilation strategy in three climates...

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The relationship between indoor air quality (IAQ) and perceived air quality (PAQ) – a review and case analysis of Chinese residential environment

•Summary and comparison of different perceived air quality (PAQ) evaluation methods.•The effect of indoor environment parameters on PAQ is summarized.•The status of indoor air quality in Chinese residential...

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Dynamic Shading and Glazing Technologies: Improve Energy, Visual, and Thermal Performance

•The scoring system roughly evaluates comprehensive performance and trade-offs.•Designers can utilize the scoring system to make decisions among multiple options.•There are trade-offs among visual,...

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Trombe walls with porous medium insertion and their influence on thermal comfort in flats in Cusco, Peru

•Trombe walls with porous medium reach an average PMV of +0.10 in high Andean zones•Acrylic pellets enhance temperature by up to 155% compared to traditional system•Temperature variations between these...

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Numerical analysis of the return flow solar air heater (RF-SAH) with assimilation of V-type artificial roughness

•Experimental and numerical analysis performed to optimize the use of hot air.•Thermal efficiency of RF-SAH is greater than the single flow solar air heater.•Thermohydraulic efficiency of RF-SAH is...

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Computational modelling and simulation to mitigate the risk of daylight exposure in tropical museum buildings

•Aims to mitigate daylight exposure on objects in tropical daylit museum buildings.•Annual daylight modelling and simulation are performed to achieve the objective.•Morris sensitivity analysis and Mahalanobis...

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On the optimisation of age of the air in the breathing zone of floor heating systems: The role of ventilation design

•Impact of six ventilation scenarios on age of air in floor heating is investigated.•Integrated ventilation-heating effects on distribution of fresh air are addressed.•Up-supply ventilation is more...

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Coupled heat and moisture transfer in walls featuring moisture-buffering materials and ventilating layers: An Experimental study

•An experimental study of the vent-layer envelope wall was conducted in the summer.•The absolute humidity in the wall decreased by 0.03 kg/kg in air-layer ventilation.•Under complete humidity regulation,...

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Predicting moisture condensation risk on the radiant cooling floor of an office using integration of a genetic algorithm-back-propagation neural network with sensitivity analysis

•A CFD model is built to simulate the pre-dehumidification stage.•τpre and Epre with different ventilation systems are calculated.•A GA-BP predicted model is built in a RFC system.•Different variables...

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A portable, auxiliary photovoltaic power system for electric vehicles based on a foldable scissors mechanism

•A portable, auxiliary photovoltaic powering system is proposed for electric vehicles.•A photovoltaic power generation module based on a foldable scissors mechanism is designed.•Wireless power transfer...

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Dynamic thermal performance of multilayer hollow clay walls filled with insulation materials: Toward energy saving in hot climates

•A numerical study is performed for calculating the thermal inertia parameters.•The traditional walls had the most significant total thermal load over 24-hours.•Integrate passive techniques into hollow...

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Finite time thermodynamic analysis and optimization of water cooled multi-spilit heat pipe system (MSHPS)

•Energy saving in data centers is increasingly with the developing IT industry.•An accurate performance and evaluation model based on time cycle is proposed.•An periodic integral energy efficiency model...

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Simulation of the flow and thermal breakthrough of a forced external circulation standing column well

•Established validated numerical models of FECSCW for quantitative analysis.•Influence of backfilled material porosity on COP and thermal breakthrough strength.•Analyzed the FECSCW temperature front...

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Trends, benefits, risks, and challenges of IoT implementation in residential and commercial buildings

•A review of IoT approaches in residential and commercial buildings is provided.•Trends of the current literature are presented.•Advantages of IoT implementation in built environments are discussed.•Future...

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Effect of tilt angle on the performance and electrical parameters of a PV module: Comparative indoor and outdoor experimental investigation

•Indoor and outdoor investigation on the effect of tilt angle on PV performance.•Experimentally fixed optimum tilt angle of 15° for real-time Malaysian conditions.•Every 5° change in tilt cause a cell...

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A study on the comparative review of cool roof thermal performance in various regions

•This paper provides an overview of cool roof's thermal behavior in various regions.•Cool roof surface treatments are the common terminology used in the building roofs.•The application of different...

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