The scope of this paper is to review different types sustainable water harvesting methods from the atmospheric fogs and dew. In paper, we report upon collection performance various fog collectors around world. We also technical aspects collector feasibility studies efficiency improvements. Modern innovations are often bioinspired technology. Fog technology obviously limited by global occurrence. contrast, dew harvester available everywhere but requires a cooled condensing surface. review,...

Thermochemical heat storage (THS) systems have major advantages over other thermal systems, notably high energy density and low loss when hermetically sealed. There are several review papers available that discuss THS. Unlike published articles, this paper presents a literature survey add insights into the current state-of-the-art THS technologies, covering: materials, reactor design as batteries. Emphasis is placed on for solar also industrial waste recovery. At materials level, in addition...

Abstract Windows are one of the significant indicators energy efficiency a building and have undergone extensive research since last decades. This paper reviews performance various window technologies covering physical optical properties traditional windows advanced technologies. In technologies, most critical parameters is its thermal transmittance value or also known as U-value. this paper, we discuss relationship between different types Additionally, will provide interested readers with...

This study aims to experimentally investigate the passive cooling performance of a concentrated PV module, using two different designs novel fin heat sinks namely, lapping and longitudinal. Design Experiment (DOE) approach technique was employed identify optimum design parameters in terms height, pitch, thickness, number fins tilt angle. The experimental work carried out under real environmental conditions at sinks. At average solar irradiance 1000 W/m2 ambient temperature 33 °C, results...

The increase in module operating temperature above 25 °C can be detrimental to the electrical output performance of photovoltaic (PV) modules. study introduces a novel truncated multi-level fin heat sink (MLFHS) subject natural convection for cooling. proposed geometry aims improve transfer by inducing abrupt change within boundary layer confined region through height. effect spacing, height, and thickness on properties MLFHS was investigated numerically using finite element analysis (FEA)....

This paper investigates double-pass solar air thermal collectors with lava rock as the porous media. The addition of serves short-term sensible storage for a drying system. It also enhances convective heat transfer rate to airflow due an increased area and turbulence in channel. A mathematical model was developed based on energy balance equations numerically solved MATLAB. collector’s performance studied at various levels intensity different wind speeds design parameters: collector size,...

The performance of photovoltaic thermal (PV/T) type solar collectors can be optimised with the use bifacial panel since it utilise absorbed incident irradiance from its front and rear surface. However, potential is highly determined by amount reflected onto surface panel. In this research, we assessed a novel double pass photovoltaic/thermal air collector using semi-transparent PV compound parabolic concentrator mirror reflector in Malaysia. CPC was introduced to increase light hence...

Symmetrical compound parabolic concentrators (CPC) for a stationary double pass photovoltaic thermal (PV/T) air solar collector has been widely employed. However, high yearly energy delivery, the incidence angle must be within full acceptance of CPC which is challenge to determine symmetrical CPC. This paper presents performance enhancement photovoltaic/thermal using an asymmetric concentrator (PV/T-ACPC) suitable building façade application. Mathematical modelling was developed and...

The non-uniformity of photovoltaic (PV) temperature can further deteriorate its power conversion efficiency and technical lifetime over long field exposures. This study proposed novel fins for a PV module reduction enhancing uniformity. multi-level fin heat sinks (MLFHS) consist geometry extruded aluminum material attached to the rear side module. developed outdoor experimental setup consists two identical 120 Wp monocrystalline modules; one served as reference comparison against with sink...

In off-grid areas where extending the grid is costly, traditional AC powered air conditioning units pose challenges for photovoltaic PV setups due to expensive inverters and battery storage. This leads an interest in cost-effective solar-driven DC cooling system. However, its efficiency depends on solar energy availability with limited operation during low radiation. study proposes a PV-driven vapor compression system variable refrigerant flow (VRF) low-cost organic phase change material...

The electrical output performance of photovoltaic (PV) modules are sensitive to temperature variations and the intensity solar irradiance under prolonged exposure. Only 20% is converted into useful electricity, remaining dissipated as heat which in turns increases module operating temperature. increase has an adverse impact on open-circuit voltage (Voc), results power conversion efficiency reduction irreversible cell degradation rate. Hence, proper cooling methods essential maintain within...

The solar-assisted heat pump drying (SAHPD) system uniquely incorporates solar-heating refrigerant through hot water from solar evacuated tubes, offering distinct advantages. This study analyzed three experimental setups: a dryer (HPD) without assistance, SAHPD configuration 1 (C1-SAHPD) with solar-heated at the discharge line, and 2 (C2-SAHPD) between condensers, both for performance economic viability. experiments maintained consistent parameters, including 5.5 kg of Pandan leaf (Pandanus...

In recent times, there has been increasing interest to address climate change by implementing renewable energy enhance the sector as soon possible. However, solar radiation turns into heat reducing photovoltaic (PV) panel efficiency. The waste from PV panels can be utilized thermoelectric (TE) convert electricity and this study, 3D CFD thermal-electric numerical model was developed for thermal electrical analysis of different sink designs materials a generator (TEG) used in system. Heat...

Solar adsorption air conditioning system (SADCS) is an excellent alternative to the conventional vapour compression (VCS). SADCS has advantages over VCS notably that it a green cooling technology utilizes solar energy drive adsorption/desorption cycle, using pure water as HFC-free refrigerant, mechanically simple and can be operated without moving parts other than magnetic valves. In last decade, several developments innovations have been achieved in field of research. However, further...