Solar thermal performance of two innovative configurations of air-vacuum layered triple glazed windows

Fang, Yueping; Memon, Saim; Peng, Jingqing; Tyrer, Mark; Ming, Tingzhen

doi:10.1016/j.renene.2019.12.115

Cited by 48 publications

(29 citation statements)

References 19 publications

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“…A selective wavelength based single junction transparent photovoltaic film has a theoretical Shockley-Queasier (SQ) limit of 20.6% [63] conversion efficiency at 100% average visible light transmittance and the conversion efficiency can be increased by adding junctions. However, glass sheet alone has about 92% average visible light transmittance [64,65], and a typical double air-filled [66,67,68] or vacuum glazing [69,70] has approximately between 70 % and 80% average visible light transmittance [71] and it would drop to 70% with the application of a low emissivity (low-e) coating to further reduce the radiative heat transmission. However, the low-e coatings can be avoided or replaced with transparent PV film as the initial research suggests it would not make a huge impact on the thermal transmittance values [72,73,74] since vacuum insulation would be an advantage irrespectively.…”

Section: Techniques To Establish Quantum Dotmentioning

confidence: 99%

Manifestations of carbon capture-storage and ambivalence of quantum-dot & organic solar cells: An indispensable abridged review

Memon

Nemera

Nwokeji

2020

STVE

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This study bestows an essential abridged review of the manifestations of carbon capture & storage (CCS) systems and the ambivalence of quantum-dot & organic photovoltaic (PV) solar cells. This research implicates that CCS system is evolving in capturing CO 2 emissions from coal-fired electrical power stations to further mitigate climate change. Different manifestations are discussed for capturing and storing the CO 2 with repercussions on operating costs, toxicity and energy efficiency. Chemical Looping Combustion appears to be the more energy efficient than Oxy-fuel CFBC and Ionic Liquids, and less expensive than Calcium Looping and Amine Scrubbing. Calcium Looping (Cal) and Ionic Liquids are also less toxic than Amine Scrubbing. Direct air technology is also very compelling at capturing CO 2 emissions but highly expensive. Nevertheless, further research is still required for all CCS systems to be able to implement them widely in existing/new electrical power stations. Waste heat energy recovery systems can be used in conjunction with CO 2 capture systems for further reduction of emissions. The ambivalence of quantum dot and organic solar cells are briefly reviewed. It implicates that composite film with enhanced quantum dot effects will make the film highly transparent and options of tunability of its color spectrum make the quantum dot solar cells highly attractive to a wide variety of applications. Organic solar cells are carbon-rich polymers and can be designed to improve a precise function of the cell, such as sensitivity to a certain type of light. OPV cells can only be considered as half-competent to crystalline silicon and have smaller beneficial lifespans, but could be less costly to produce in high volumes. Current research issues are substitution/compromises between electrical power conversion efficiency and average visible light transmittance. However, improving average light-transmittance decreases electrical power conversion efficiency and vice versa.

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Section: Techniques To Establish Quantum Dotmentioning

confidence: 99%

Manifestations of carbon capture-storage and ambivalence of quantum-dot & organic solar cells: An indispensable abridged review

Memon

Nemera

Nwokeji

2020

STVE

Self Cite

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“…According to UK Government regulation 25B introduced into the Building regulations in 2012 [40] to transpose buildings to nearly zero energy buildings [41,42] and PartL1A 2016 recommended zero energy homes with an equivalent zero CO2 emissions. It can be achieved with effective wall and windows insulations such as vacuum glazing [43][44][45][46][47][48][49], triple vacuum glazing [50][51][52][53][54] and/or vacuum insulation panel with semi-transparent PV films [41,42] on building façade for minimising the heat loss and generating electricity. More importantly, it requires standalone power generation to distant coastline community houses.…”

Section: Prognostication Of Zero Energy Coastline Houses In the Ukmentioning

confidence: 99%

Wave energy in the UK: Current scope, challenges and prognostications

Memon

Lawal

Tariq

et al. 2020

STVE

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This paper reviews the current status, challenges and prognostications of wave energy systems (WES), which have momentous scope in the UK that could deliver the UK's net zero energy target by 2050. In Britain, there are 43 primary seaside towns around the coast in which 37 are in England that encompass a collective population of 2.9 million and signify around 5.7 % of the population of England as a whole where the zero energy coastline house projects can be initiated with WES. The progress in the development of standalone WES for a vision of zero energy coastline houses is still in its initial stages. This paper exhibited a brief review of the onshore, nearshore and offshore WES technologies, particular focus was made to the scope in the UK. The feasibility and efficiency of WES study imply that the power take off (PTO) efficiency is crucially important as the overall output depends on the optimum energy harness from WES that will improve its competitive prowess with other renewable technologies and further reduce the cost of WES manufacturing. This study implicates one of prognostications that developing marine energy resources in the UK can save 60 metric tons of carbon dioxide by 2025. This study also concluded that WES can pose environmental challenges such as alterations of water column to biota and sea-bed habitats, dredging, noise and vibrations. The prognostication of zero energy coastline houses arises due to the location of the UK, which is one of the major determinants for the future success of wave energy projects, as the UK is located at the long fetch of the Atlantic Ocean and has the wind direction from the west. The available resource to harness wave energy in the UK is around 120 GW.

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“…Vacuum plate glass, as a new type of transparent energy-saving advanced insulation technology currently emerging in the world, has excellent insulation, anti-aging, and infrared reflection properties. It has wider scope in the net-zero energy buildings due to its lower U-value of less than 1 Wm −2 K −1 [1,2] for vacuum-separated glass sheets and 0.33 Wm −2 K −1 for dual-vacuum-separated three glass sheets [3,4]. It is a research hotspot in glass processing technology in China and worldwide.…”

Section: Introductionmentioning

confidence: 99%

Laser Sealing for Vacuum Plate Glass with PbO-TiO2-SiO2-RxOy Solder

et al. 2020

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Laser sealing for vacuum plate glass is a key step in developing the cost-effective smart vacuum-glass window for the drive towards net-zero energy buildings. In this paper, the pores, cracks, and interface with laser welding are analyzed in depth using PbO-TiO2-SiO2-RxOy system sealing solder to prepare vacuum flat glass. The microstructure of the sealing layer was analyzed by a BX41M-LED metallographic microscope, and the interfacial bonding characteristics were observed by thermal field emission scanning electron microscopy (SEM). The solder was analyzed by an energy spectrometer, and the influence of laser power, sealing temperature, and sealing speed on the gas holes and the crack sand interface separation of the sealing layer are reported. The results show that when the laser power reached 80 W at the welding speed of 2 mm/s, the bulk solder disappeared to most of the quantity and the sealing surface density was higher, due to which negligible pores and micro cracks were found. Thus, the sealing quality of the sealing layer is considered to be suitable when the temperature of 470 °C was maintained and the solder has 68.93% of Pb and 3.04% Si in the atom fraction to achieve the wet the glass substrate surface whilst improving the bonding quality.

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Solar thermal performance of two innovative configurations of air-vacuum layered triple glazed windows

Cited by 48 publications

References 19 publications

Manifestations of carbon capture-storage and ambivalence of quantum-dot & organic solar cells: An indispensable abridged review

Manifestations of carbon capture-storage and ambivalence of quantum-dot & organic solar cells: An indispensable abridged review

Wave energy in the UK: Current scope, challenges and prognostications

Laser Sealing for Vacuum Plate Glass with PbO-TiO2-SiO2-RxOy Solder

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