A5010433931- Adsorption and Cooling Systems
- Heat Transfer and Optimization
- Refrigeration and Air Conditioning Technologies
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Chemical Looping and Thermochemical Processes
- Industrial Gas Emission Control
- Spacecraft and Cryogenic Technologies
- Carbon Dioxide Capture Technologies
- Iron and Steelmaking Processes
- Cyclone Separators and Fluid Dynamics
- Heat and Mass Transfer in Porous Media
- Renewable energy and sustainable power systems
- Oil, Gas, and Environmental Issues
- Wind and Air Flow Studies
- Thermochemical Biomass Conversion Processes
- Phase Change Materials Research
- Geology and Environmental Impact Studies
- Management Systems and Quality Improvement
- Computational Fluid Dynamics and Aerodynamics
- Building energy efficiency and sustainability
- Geotechnical and Mining Engineering
- Granular flow and fluidized beds
- Building Energy and Comfort Optimization
- Combustion and Detonation Processes
- Greenhouse Technology and Climate Control
Jan Długosz University
2015-2024
Gdańsk University of Technology
2015
University of Białystok
2015
Wroclaw University of Economics and Business
2013
Computational methods have been widely applied in conjugate heat transfer analysis. The very first and crucial step such research is the meshing process which consists dividing analysed geometry into numerous small control volumes (cells). In Fluid Dynamics (CFD) applications it desirable to use hexahedral cells as resulting mesh characterized by low numerical diffusion. Unfortunately generating can be a time-consuming task case of complicated - may not possible generate good quality....
Global CO2 concentration level in the air is unprecedently high and should be rapidly significantly reduced to avoid a global climate catastrophe. The work indicates possibility of quickly lowering impact changes that have already happened those we know will happen, especially terms emitted stored atmosphere, by implanting virgin ivy plant on available area walls roofs houses. proposed concept reducing from atmosphere one technologies with significant potential for implementation entirely...
Chemical looping combustion (CLC) is one of the most advanced technologies allowing for reduction in CO2 emissions during solid fuels. The modified method combines chemical with oxygen uncoupling (CLOU) and situ gasification (iG-CLC). As a result, an innovative hybrid came into existence, making above two complementary. Since complexity CLC still not sufficiently recognized, study this process practical significance. paper describes experiences modelling complex geometry equipment....
Abstract Adsorption cooling and desalination systems have a distinct advantage over other that use low‐grade waste heat near ambient temperature. Since improving their performance, including reliability failure prediction, is challenging, developing an efficient diagnostic system of great practical significance. The paper introduces artificial intelligence (AI) automated machine learning approach (AutoML) in real‐life application for computational existing adsorption facilities. A total 1769...
The paper introduces the artificial intelligence (AI) approach for modeling fluidized adsorption beds. idea of bed application allows a significantly increased heat transfer coefficient between and surface exchanger, improving performance cooling desalination systems. Long Short-Term Memory (LSTM) network algorithm was used, classified as deep learning method, to predict vapor mass quantity in bed. research used an LSTM with two hidden layers. study is composed seven inputs (absolute...
The calcium looping (CaL) process usually employs a dual-fluidized bed (DFB) solid circulating unit. In the regenerator (calcinator or calciner), decomposition of CaCO3 proceeds. To supply heat decomposition, oxyfuel combustion coal is conducted. However, since contains nitrogen, NOx formation occurs during combustion. Because fact that and destruction fuels in fluidized complex process, predictive approach emissions has not yet been sufficiently recognized, especially conditions CaL...
Since the adsorption chillers do not use primary energy as driving source possibility to employ low temperature waste heat sources in cooling production receives nowadays much attention of industry and science community. However, performance thermally driven systems is lower than that other heating/cooling systems. Low coefficients are one main disadvantages coolers. It result a poor transfer coefficient between bed immersed heating surfaces built-in exchanger system. The purpose this work...
Abstract Energy efficiency is one of the most important topics nowadays. It strictly related to problem energy demand, policy, environmental pollution, and economic issues. Because technological development, using more advanced processes in almost every part industry increasing demands both for a high standard living simplification processes, demand growing. This can be observed, e.g., building sector—air conditioning present new people expect quality thermal conditions. At same time, many...
One of the main disadvantages conventional fixed-bed adsorption chillers is low coefficient performance due to high voidage sorbent beds. The common method, which can help handle this problem, modifying beds' design, including application fluidization. An innovative idea, shown in article, constitutes use fluidized bed sorbent, instead conventional, fixed-bed, commonly used nowadays chillers. Bed-to-wall heat transfer coefficients for fixed and beds adsorbent are determined study. Effects...
Adsorption cooling and desalination technologies have recently received more attention.Adsorption chillers, using eco-friendly refrigerants, provide promising abilities for low-grade waste heat recovery utilization, especially renewable of the near ambient temperature.However, due to low coefficient performance (COP) capacity (CC) they not been widely commercialized.Although operating in combined heating (HC) systems, adsorption chillers allow efficient conversion management sources thermal...
A distinct advantage of adsorption chillers is their ability to be driven by heat near ambient temperature. However the performance thermally systems lower than that other heating/cooling systems. It result a poor transfer coefficient between bed and immersed heating surfaces built-in exchanger system. The aim this work study effect thermal conductance values as well design parameters on re-heat two-stage chiller. One main energy efficiency factors in cooling production, i.e. capacity (CC)...
This article presents a study of the effect metal particle and carbon nanotube additives on thermal diffusivity silica-gel-based adsorption bed an chiller. The structural properties silica gel nanotubes were investigated using volumetric method low-pressure nitrogen adsorption. Thermal characteristic tests prepared mixtures based with 5 wt% 15 aluminum, copper, or carried out. obtained results show that all materials used as in blends this achieved higher diffusivities comparison parent gel....