Air-source heat pump heating based water vapor compression for localized steam sterilization applications during the COVID-19 pandemic

Yan, Hongjie; Hu, Bin; Wang, Ruzhu

doi:10.1016/j.rser.2021.111026

Cited by 19 publications

(6 citation statements)

References 29 publications

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“…As shown in Fig. 6, recent studies verified that air-source heat pump based water vapor compression system could generate 120 °C steam with COP over 130% at -18 °C ambient temperature, 210% at 35 °C ambient temperature [54]. With an average operating COP of 170%, the air-source heat pump boiler can directly satisfy the high temperature steam demand of small and medium-sized enterprises, and is an efficient driver for terminal electrification of high-temperature heating [13].…”

Section: Industrial Applicationsmentioning

confidence: 85%

The role of heat pump in heating decarbonization for China carbon neutrality

et al. 2022

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Heating decarbonization is a major challenge for China to meet its 2060 carbon neutral commitment, yet most existing studies on China’s carbon neutrality focus on supply side (e.g., grid decarbonization, zero-carbon fuel) rather than demand side (e.g., heating and cooling in buildings and industry). In terms of end use energy consumption, heating and cooling accounts for 50% of the total energy consumption, and heat pumps would be an effective driver for heating decarbonization along with the decarbonization on power generation side. Previous study has discussed the underestimated role of the heat pump in achieving China’s goal of carbon neutrality by 2060. In this paper, various investigation and assessments on heat pumps from research to applications are presented. The maximum decarbonization potential from heat pump in a carbon neutral China future could reach around 1532Mton and 670Mton for buildings and industrial heating respectively, which show nearly 2 billion tons CO2 emission reduction, 20% current CO2 emission in China. Moreover, a region-specific technology roadmap for heat pump development in China is suggested. With collaborated efforts from government incentive, technology R&D, and market regulation, heat pump could play a significant role in China’s 2060 carbon neutrality.

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Section: Industrial Applicationsmentioning

confidence: 85%

The role of heat pump in heating decarbonization for China carbon neutrality

et al. 2022

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“…The carbon content of KWHC decreased with decreasing pH in the range of 5 to 7. The C/N ratio in KWHC increased with increasing pH (3)(4)(5)(6)(7)(8)(9)(10). The solid-liquid ratio of 1:5 KWHC resulted in the highest C/N ratio (Table 2).…”

Section: Elemental Analysis Of the Kwhcmentioning

confidence: 96%

“…At a certain temperature and self-generated pressure, HTC can quickly convert organic matter into carbon-rich products using water as a solvent and reaction medium [ 9 ]. Prior research has discovered that COVID-19 was inactivated by heating at 56 °C for 30 min [ 10 ]. In addition, early articles demonstrated that the HTC reaction temperature is relatively high (150–350 °C) and can be used for sterilization to reduce pathogens and prevent infection [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Potential Application Performance of Hydrochar from Kitchen Waste: Effects of Salt, Oil, Moisture, and pH

Khan

et al. 2023

Toxics

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The surge in kitchen waste production is causing food-borne disease epidemics and is a public health threat worldwide. Additionally, the effectiveness of conventional treatment approaches may be hampered by KW’s high moisture, salt, and oil content. Hydrothermal carbonization (HTC) is a promising new technology to convert waste biomass into environmentally beneficial derivatives. This study used simulated KW to determine the efficacy of hydrothermal derivatives (hydrochar) with different salt and oil content, pH value, and solid-liquid ratio for the removal of cadmium (Cd) from water and identify their high heating value (HHV). The findings revealed that the kitchen waste hydrochar (KWHC) yield decreased with increasing oil content. When the water content in the hydrothermal system increased by 90%, the yield of KWHC decreased by 65.85%. The adsorption capacity of KWHC remained stable at different salinities. The KWHC produced in the acidic environment increases the removal efficiency of KWHC for Cd. The raw material was effectively transformed into a maximum HHV (30.01 MJ/kg). HTC is an effective and secure method for the resource utilization of KW based on the adsorption capacity and combustion characteristic indices of KWHC.

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“…The Covid-19 pandemic has made it essential to maintain public health safety(Yan et al 2021 ; Han et al 2022 ; Santos-Rosales et al 2022 ). Currently, leading disinfectants used in the common environment include pyridine halide salts, ozone, ultraviolet lamps, hydrogen peroxide, and others(Wilson and Nayak 2019 ; Lowe et al 2020 ; Liao et al 2020 ; Bennet et al 2021 ; Santos-Rosales et al 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Development of chlorine dioxide sustained-release device using carboxymethyl cellulose-polyvinyl alcohol-β-cyclodextrin ternary hydrogel and a new sustained-release kinetic model

et al. 2023

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Owing to unique physiochemical and biological properties as well as the ability to be combined with a wide variety of materials for both biocompatibility and hydrophilia, carboxymethyl cellulose (CMC) is an excellent choice as a carrier. Loading Chlorine dioxide (ClO 2 ) into biodegradable carrier for its good disinfection performance and high safety factors has attracted significantattention. Therefore, in this study, we used ClO 2 as a model drug, and a sustained-ClO 2 -gas-release gel was developed from degradable materials, such as carboxymethyl cellulose (CMC), polyvinyl alcohol (PVA), and β-cyclodextrin (βCD), through a simple and benign crosslinking strategy. Notably, the gel had sustained-release property in a wide temperature range of 4–35 ℃ and released ClO 2 gas effectively for more than 30 days. Furthermore, a loss factor was proposed based on the incomplete release of the drug in the sustained release process to a chieve a good fit with the gas diffusion process. A new diffusion model was designed based on the Korsmeyer–Peppas model, and an excellent fit was obtained. This sustained-ClO 2 -gas-release gel provides theoretical and technical guidance for the development of sustained-disinfectant-release agents for use in space and offers new insights into the sustained release model of skeleton-soluble hydrogels. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10570-023-05070-6.

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Air-source heat pump heating based water vapor compression for localized steam sterilization applications during the COVID-19 pandemic

Cited by 19 publications

References 29 publications

The role of heat pump in heating decarbonization for China carbon neutrality

The role of heat pump in heating decarbonization for China carbon neutrality

Potential Application Performance of Hydrochar from Kitchen Waste: Effects of Salt, Oil, Moisture, and pH

Development of chlorine dioxide sustained-release device using carboxymethyl cellulose-polyvinyl alcohol-β-cyclodextrin ternary hydrogel and a new sustained-release kinetic model

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