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Studying the performance of a pilot scale vacuum-based …
Research on vacuum-based membrane dehumidification (VMD) has gained significant traction due to it being an efficient isothermal and eco-friendly process. However, most …
How Does A Dehumidifier Work? (Simple 2-Step Principle)
In simplest terms, a dehumidifier is an HVAC device that removes moisture from indoor air. To understand how does a dehumidifier work, however, we have to look into the device itself. In technical terms, the dehumidifier uses a refrigeration-based and heater-based system to reduce relative air humidity from 50-100% to 30-50%. ...
Brief introduction of dehumidification technology and research progress
Through a two-stage dehumidification process, the isenthalpic process is transformed into a quasi-isothermal process, and the liquid des iccant reaches its full dehumidification potential.
An environmentally-friendly vacuum reduction metallurgical process …
In this paper, an environmentally-friendly vacuum reduction metallurgical process (VRMP) was proposed to recover germanium from coal fly ash. The results of the laboratory scale experiments indicated that the appropriate parameters were 1173K and 10Pa with 10wt% coke addition for 40min, and recovery ratio germanium was 93.96%.
Progressive Development of Solid Desiccant Dehumidification …
It employs highly durable, non-corrosive, and environmentally friendly adsorbents, operates at low heat source temperatures compared to absorption chillers, …
Sustainable humidity control in the built environment: Recent research and technological advancements in thermal driven dehumidification …
Sustainable humidity control in the built environment
Technological development of evaporative cooling systems and its integration with air dehumidification process…
Vacuum-based membrane dehumidification system have been developed as a more environmentally friendly alternative for dehumidification due to non-refrigerant system and isothermal dehumidification process.
Technological development of evaporative cooling systems and …
Vacuum-based membrane dehumidification system have been developed as a more environmentally friendly alternative for dehumidification due …
Salinity impacts on humidification dehumidification (HDH) …
The use of humidification-dehumidification water desalination technology has been shown to be a practical means of meeting the demand for freshwater. The aim of this review is to investigate the impact of salinity on HDH techniques that have various benefits in terms of both economics and the environment, including the capacity …
Super hygroscopic nanofibrous membrane-based moisture pump for solar-driven indoor dehumidification | Nature …
Desiccants are important for dehumidification, but application is hindered by limited hygroscopicity, recyclability, and energy efficiency. Here, the authors report a moisture pump comprised of an ...
Sustainability | Free Full-Text | Economic and Experimental …
A liquid desiccant dehumidification cooling system is a promising, energy-saving, high-efficiency, environmentally friendly technology that maintains …
Comparative thermodynamic analysis of membrane-based vacuum air dehumidification systems
Characteristics of membrane-based vacuum air dehumidification (MVD) systems are described.Three systems of S-MVD, W-MVD, and C-MVD types were modeled and simulated. • W-MVD showed the best performance among the three sytems. • …
Vacuum variable capacitor explained
Vacuum variable capacitor explained A vacuum variable capacitor is a variable capacitor which uses a high vacuum as the dielectric instead of air or other insulating material. This allows for a higher voltage rating than an air dielectric using a smaller total volume. rating than an air dielectric using a smaller total volume.
An environmentally-friendly vacuum reduction metallurgical process …
Semantic Scholar extracted view of "An environmentally-friendly vacuum reduction metallurgical process to recover germanium from coal fly ash." by Lingen Zhang et al. DOI: 10.1016/j.jhazmat.2016.03.025 Corpus ID: 32867411 An environmentally-friendly vacuum
Energy impact of vacuum-based membrane dehumidification in …
The performance of a vacuum membrane dehumidification-based air-conditioning system were evaluated. • There described the method to decide vacuum pump working conditions and membrane module design. • The …
Investigation of Dehumidification Performance and Flow Characteristics of Wavy Vacuum Membrane-Based Dehumidification …
This work investigates the dehumidification performance of vacuum membrane-based dehumidification with difference wavy membranes. Firstly, this paper constructs four different ...
How Does the Dehumidification Process Work?
The Dehumidification Process Mechanical dehumidifiers contain both an evaporator coil (cold coil) and a condenser coil (warm coil). As the moist room air passes over the cold coil, the air temperature is lowered to its dew point, and the water vapor is condensed out of the air and collected in a drain pan.
DEHUMIDIFICATION STRATEGIES AND THEIR …
and dehumidification process. Outdoor air, after exchanging energy with exhaust air (1-2) passes over the cooling coil to cool the air down to the required leaving air humidity ratio (2-3) and then is reheated to the required supply air temperature (3-4). In this ...
Assessing the Application of Vacuum-Based Membrane …
dehumidification process of cooling down the air to its dewpoint temperature (to condensate the moisture out of the air) and reheating the air up to the desired supply …
Performance evaluation of a heat pump-driven vacuum humidification-dehumidification desalination system …
Heat pump is added to two variable pressure humidification-dehumidification systems. • Specific power consumption and desalination rate determine the process efficiency. • Liquid ring vacuum pump enhances system performance more than the throttle valve. •
Hybrid membrane dehumidification and dewpoint evaporative …
Vacuum-based membrane dehumidification system have been developed as a more environmentally friendly alternative for dehumidification due …
Research Paper A dehumidification process with cascading …
A dehumidification process with cascading desiccant wheels is proposed in this work, as presented in Fig. 1. The process mainly consists of a sequence of desiccant wheels (DW 1 to DW N), where the next wheel in the sequence provides regeneration air for ...
Dehumidifiers That Contain Refrigerants – And Those That Don''t
2. Desiccant Dehumidifier Unlike compressor dehumidifiers that involve a complicated system of coils, compressor, and refrigerant, desiccant dehumidifiers use moisture absorbing material like silica gel to dehumidify the air (i.e., they do not use refrigerant). They ...
A review of liquid desiccant air dehumidification: From system to …
Compared to condensation dehumidification, desiccant dehumidification is eco-friendly and efficient. By using this system, it can save up to 30~50% of cooling energy consumption in commercial buildings, compared with that using the condensation cooling systems [11] .
Adsorption air conditioning: a comprehensive review in desiccant …
Through the process from state points 6 to 7, the humidified cooled air will exchange the heat with process air in the heat exchanger, as a result, it is preheated and process air is precooled. Then, warm air is heated from points 7 to 8 by the heat source and passes to a wheel to reactivate the sorbent material, as a result, it is humidified, and its …