Evaluation of thermal performance for a smart switchable adaptive polymer dispersed liquid crystal (PDLC) glazing

Hemaida, Abdulmohsin; Ghosh, Aritra; Sundaram, Senthilarasu

doi:10.1016/j.solener.2019.11.024

Cited by 129 publications

(53 citation statements)

References 31 publications

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“…[1][2][3][4] At the same time, it has good development and wide application prospects in sensing, coding, photoelectron.etc. [5][6][7][8] Polyurethane is more suitable to be used as matrixes of polymeric fluorescent dye due to its advantages such as adjustable structure, stable performance and diverse processing methods, etc., and is of high interest. [9][10][11][12] Polyurethanebased fluorescent dye is polymeric fluorescent dyes formed by anchoring monomeric fluorescent dye to polyurethane chains by chemical bonds.…”

Section: Introductionmentioning

confidence: 99%

A Waterborne Polyurethane‐Based Dye with Green Fluorescence Excited by Visible Light

Xian

et al. 2021

ChemistrySelect

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A waterborne aminofluorescein polyurethane-based dye (AF-WPU) with green fluorescence excited by visible light was synthesized by anchoring aminofluorescein (AF) to waterborne polyurethane chains. The structural characteristics of AF-WPU was confirmed by means of 1 H-NMR, FT-IR and UV-vis absorption. Compared with AF, there is a hypsochromic shift, and a new absorption peak generating in the UV-vis spectra of AF-WPU. Meanwhile, AF-WPU emited excellent fluorescence.The fluorescence intensity of AF-WPU increased five times at the same concentration. It is found that the fluorescence intensities of AF-WPU decreaseed with increased temperature, and increased first and then decreased with increasing concentration. The fluorescence of AF-WPU is very stable and insensitive to quenching agents. Moreover, AF-WPU which excited by visible light is less phototoxic to health, and has a broad prospect in practical applications.

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Section: Introductionmentioning

confidence: 99%

A Waterborne Polyurethane‐Based Dye with Green Fluorescence Excited by Visible Light

Xian

et al. 2021

ChemistrySelect

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“…Thermal management is a common issue in several applications including cryogenics, [ 10–12 ] energy conversion, [ 13–15 ] caloric refrigeration, [ 16–18 ] microfluidics, [ 19–21 ] biology, chemistry, and pharmacy, [ 22–24 ] buildings, [ 25–28 ] outer space, [ 11,29,30 ] and sensor technologies. [ 31,32 ] Therefore, TCDs for these application areas are being studied theoretically and experimentally.…”

Section: Introductionmentioning

confidence: 99%

Fluidic and Mechanical Thermal Control Devices

Klinar

Swoboda

Rojo

et al. 2020

Adv Elect Materials

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In recent years, intensive studies on thermal control devices have been conducted for the thermal management of electronics and computers as well as for applications in energy conversion, chemistry, sensors, buildings, and outer space. Conventional cooling or heating techniques realized using traditional thermal resistors and capacitors cannot meet the thermal requirements of advanced systems. Therefore, new thermal control devices are being investigated to satisfy these requirements. These devices include thermal diodes, thermal switches, thermal regulators, and thermal transistors, all of which manage heat in a manner analogous to how electronic devices and circuits control electricity. To design or apply these novel devices as well as thermal control principles, this paper presents a systematic and comprehensive review of the state‐of‐the‐art of fluidic and mechanical thermal control devices that have already been implemented in various applications for different size scales and temperature ranges. Operation principles, working parameters, and limitations are discussed and the most important features for a particular device are identified.

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“…It allows external heat to come inside (enhance the air condition load), internal heat to outside (enhance heating load) and offer visual connection to building interior to exterior [172][173][174][175][176][177][178][179][180][181][182][183][184][185]. Building window systems are affected by an overall heat transfer coefficient (U-value) and solar energy transmittance (g-value) [186][187][188][189]. For warmer place, high U-value and low g-value are required, while for colder area, low U-value and high g-value are suitable.…”

Section: Perspective and Discussionmentioning

confidence: 99%

Status of BIPV and BAPV System for Less Energy-Hungry Building in India—A Review

et al. 2020

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The photovoltaic (PV) system is one of the most promising technologies that generate benevolent electricity. Therefore, fossil fuel-generated electric power plants, that emit an enormous amount of greenhouse gases, can be replaced by the PV power plant. However, due to its lower efficiency than a traditional power plant, and to generate equal amount of power, a large land area is required for the PV power plant. Also, transmission and distribution losses are intricate issues for PV power plants. Therefore, the inclusion of PV into a building is one of the holistic approaches which reduce the necessity for such large land areas. Building-integrated and building attached/applied are the two types where PV can be included in the building. Building applied/attached PV(BAPV) indicates that the PV system is added/attached or applied to a building, whereas, building integrated PV (BIPV) illustrates the concept of replacing the traditional building envelop, such as window, wall, roof by PV. In India, applying PV on a building is growing due to India’s solar mission target for 2022. In 2015, through Jawaharlal Nehru National Solar Mission, India targeted to achieve 100 GW PV power of which 40 GW will be acquired from roof-integrated PV by 2022. By the end of December 2019, India achieved 33.7 GW total installed PV power. Also, green/zero energy/and sustainable buildings are gaining significance in India due to rapid urbanization. However, BIPV system is rarely used in India which is likely due to a lack of government support and public awareness. This work reviewed the status of BIPV/BAPV system in India. The BIPV window system can probably be the suitable BIPV product for Indian context to reduce the building’s HVAC load.

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Evaluation of thermal performance for a smart switchable adaptive polymer dispersed liquid crystal (PDLC) glazing

Cited by 129 publications

References 31 publications

A Waterborne Polyurethane‐Based Dye with Green Fluorescence Excited by Visible Light

A Waterborne Polyurethane‐Based Dye with Green Fluorescence Excited by Visible Light

Fluidic and Mechanical Thermal Control Devices

Status of BIPV and BAPV System for Less Energy-Hungry Building in India—A Review

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