The optimization of thermal insulation-related properties of polysaccharide-based aerogel by the multi-layer combination method

Wu, Kao; Wang, Ru; Ye, Zijian; Tao, Yuxuan; Wu, Huaxin; Sun, Weiwei; Cheng, Jue; Kuang, Ying; Jiang, Fatang; Chen, Sheng

doi:10.1007/s10934-023-01438-y

Cited by 4 publications

(2 citation statements)

References 38 publications

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“…IndustryARC, Telangana, India said the worldwide building thermal insulation market was valued at USD 29.75 billion in 2022 [2]. The Global Market Report for Building Thermal Insulation in 2023 forecasts that the global market for building thermal insulation will reach USD 44.69 billion by 2030, with a compound annual growth rate (CAGR) of 4.5% from 2023 to 2030 [3,4]. The reassessment of thermal insulation design has been motivated by recent concerns regarding energy conservation and the depletion of scarce energy resources.…”

Section: Introductionmentioning

confidence: 99%

“…Although pipelines and cylindrical heat exchangers are commonly used in refineries, the chemical industry, and power plants, there is a lack of research on optimizing multilayer thermal insulation for cylindrical shapes [3,5]. In piping systems, it is customary to use a single layer of insulation to prevent heat transmission and maintain the insulated surface's temperature under a defined safety threshold.…”

Section: Introductionmentioning

confidence: 99%

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Optimizing the Thickness of Multilayer Thermal Insulation on Different Pipelines for Minimizing Overall Cost-Associated Heat Loss

Alrasheed

2024

Processes

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Optimizing the multilayer thermal insulation of pipelines transporting liquids and gases at higher than ambient temperatures is crucial for heat energy conservation and cost optimization. This study utilizes a multi-objective genetic algorithm to optimize the multilayer thermal insulation thickness around a pipe carrying fluid to minimize heat loss and associated costs. The model adopted mathematical associations between design variables and the overall installation cost of layers over a pipe from the available literature. The proposed model considered one or more insulation layers of rock wool and calcium silicate to oil pipelines containing steam, furfural, reduced crude or 300-distillate oil. All calculations considered fixed-charge rates as a fraction of 1 or 0.15. The results were compared with standard values and those predicted by other researchers in the literature. For the steam line, the standard insulation thickness was 50 mm, jumping to 327 mm for rock wool and 232 mm for calcium silicate. However, it decreased to 38 mm for double-layer calcium silicate and 138 mm for double-layer rock wool. For furfural, the insulation thickness was 40 mm, which rose to 159 mm for rock wool and 112 mm for calcium silicate. In general, for all four cases, the results show that using normal insulation thickness is inadequate and not economical. For example, for 300-distillate oil, the present practice puts the cost function at 54 USD/m, which drops to 20 USD/m for rock wool and 24 USD/m each for single-layer silicate and double-layer insulation. This amounts to almost 60% cost savings. Similar trends are observed for the other three cases. This model can provide up to 60% savings in cost and a 92% reduction in heat loss at optimum insulation thickness compared to other models.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimizing the Thickness of Multilayer Thermal Insulation on Different Pipelines for Minimizing Overall Cost-Associated Heat Loss

Alrasheed

2024

Processes

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Impacts of Konjac Glucomannan on the Pasting, Texture, and Rheological Properties of Potato Starch with Different Heat–Moisture Treatments

Wu,

Tao,

Cheng

et al. 2024

Starch Stärke

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Few studies reported the impact of hydrocolloid addition on starches after heat moisture treatment (HMT). In this study, potato starch is modified by HMT under different moisture content (18–35%), and the impact of konjac glucomannan (KGM) addition on the pasting, gel texture, and rheological properties of potato starch after HMT are investigated. The results showed that after HMT, the granule structure of the starch is changed with higher heat stability, shown as higher pasting temperature and trough viscosity. The impact of KGM addition is similar on the potato starch before and after HMT, but the change extent of the latter is larger in most cases, such as decreased pasting temperature and gel hardness, increased peak viscosity, breakdown viscosity, and final viscosity. This indicated that KGM benefited the gelatinization behavior of HMT starch but might not enhance the retrogradation process. The intrinsic high viscosity of KGM in water resulted in a softer starch gel and also contributed to the enhanced shear stress of the mixture paste. Therefore, the impact of KGM on the HMT starch is more significant than the original starch, and this guided the use of HMT starch in the food industry with other hydrocolloid involvement.

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Superior flame retardancy, thermal insulation, and mechanical properties of konjac glucomannan/sodium alginate biomass aerogel modified by supramolecular assembled phytic acid-melamine nanosheet

Ye,

Yu,

Zeng

et al. 2024

International Journal of Biological Macromolecules

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The optimization of thermal insulation-related properties of polysaccharide-based aerogel by the multi-layer combination method

Cited by 4 publications

References 38 publications

Optimizing the Thickness of Multilayer Thermal Insulation on Different Pipelines for Minimizing Overall Cost-Associated Heat Loss

Optimizing the Thickness of Multilayer Thermal Insulation on Different Pipelines for Minimizing Overall Cost-Associated Heat Loss

Impacts of Konjac Glucomannan on the Pasting, Texture, and Rheological Properties of Potato Starch with Different Heat–Moisture Treatments

Superior flame retardancy, thermal insulation, and mechanical properties of konjac glucomannan/sodium alginate biomass aerogel modified by supramolecular assembled phytic acid-melamine nanosheet

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