A5085621487- Building Energy and Comfort Optimization
- Adsorption and Cooling Systems
- Refrigeration and Air Conditioning Technologies
- Heat Transfer and Optimization
- Blood groups and transfusion
- Respiratory Support and Mechanisms
- MRI in cancer diagnosis
- Solar-Powered Water Purification Methods
- Colorectal Cancer Surgical Treatments
- Thermal Regulation in Medicine
- Advanced Neuroimaging Techniques and Applications
- Advanced MRI Techniques and Applications
- Anorectal Disease Treatments and Outcomes
- Hernia repair and management
- T-cell and B-cell Immunology
- Blood disorders and treatments
- Greenhouse Technology and Climate Control
- Platelet Disorders and Treatments
- Cardiac, Anesthesia and Surgical Outcomes
- Neonatal Respiratory Health Research
- Colorectal Cancer Treatments and Studies
- Geothermal Energy Systems and Applications
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Neuroscience of respiration and sleep
- Fetal and Pediatric Neurological Disorders
University of Geneva
2019-2023
University Hospital of Geneva
2021-2023
Hôpital Beau-Séjour
2022
Budapest University of Technology and Economics
2011-2021
University of Pecs
1999-2008
Fresenius Medical Care (Germany)
2004
University of Szeged
1991
Hungarian National Blood Transfusion Service
1990
Institute of Haematology and Blood Transfusion
1990
County Hospital
1990
Liquid-to-air membrane energy exchanger is a novel base exchanger, which allows both heat and moisture transfer between air salt solution. The mass performance of single one significantly dependent on two dimensionless parameters: number units the ratio capacity rates solution flow (Cr*). liquid-to-air under high Cr* (i.e. ≥ 1) has been comprehensively investigated experimentally numerically in previous research. In this study, effectiveness small-scale low conditions < tested. Good...
The object of this research was to investigate the effectiveness sorption energy exchanger and impact operational thermal environmental conditions on their efficiency under steady-state conditions. To achieve object, a test facility installed into Indoor Air Quality Thermal Comfort Laboratory BUTE University. A molecular 3Å sieve wheel with high latent is integrated experimental setup. In study, correlation between sensible, latent, total different ambient air temperature humidity values...
The aim of this research was to investigate the scale carbon dioxide recirculation in rotary energy wheel operated air handling units. To achieve objective, a test facility installed into indoor quality and thermal comfort laboratory BUTE University. A newly developed molecular 3 Å sieve sorption with high humidity transfer efficiencies is integrated experimental setup. In study, cross-contamination rate from exhaust side supply regenerative air-to-air exchanger conducted by tests. During...
The aim of this research study was to investigate the energy recovery potentials in ventilation systems under different climatic conditions. well-known heating degree day from literature updated using weather data cities with climates past 40 years. As novelty developed procedure drawn up study, energetic possibilities heat various climate and operating conditions may be examined more detail realistically than methods available information current engineering practices. To achieve long-term...
In this study a comparative energetic analysis is investigated of single family house with different calculation procedures. One the methods that were used Ministry without Portfolio Decree No. 7/2006 for energy certification and MSZ-140-04 demand calculations (by using WinWatt computer software) are widely in Hungarian practice by HVAC designers experts. Passive House Planning Package (PHPP) also more common PC software Hungary due to continuously tightening requirements. To see differences...
The variable refrigerant flow air-conditioning system is an HVAC that can perform at a high capacity with low consumption thanks to its variable-speed compressor. paper introduces TRNSYS model build simulation calculate the energy performance of existing and be used as reference when VRF proposed certain situation. was compared actual see data agreement between two models. Temperature, Relative Humidity, were metered using proper instruments, it obtained results. validation showed close...
The liquid-to-air membrane energy exchanger is a novel base that allows both heat and moisture transfer between air salt solution using membrane. mass performance of single one significantly dependent on two dimensionless parameters: number units the ratio capacity rates flow airflow (Cr*). In this study, effectiveness small-scale under low Cr* conditions (i.e., < 1) has been not investigated previously experimentally numerically tested.
Liquid-to-air membrane energy exchanger is a novel base exchanger, which allows both heat and moisture transfer between air salt solution. It uses semi-permeable to eliminate entrainment of liquid desiccant as aerosols in stream allow simultaneous solution flow airflow. The mass performance single liquid-to-air significantly dependent on two dimensionless parameters. They are the number units (NTU) ratio capacity rates (Cr*). exchangers can also be applied run-around system, mainly comprised...
The usage of energy recovery ventilation units was extended in European countries. Air-to-air heat and is an effective procedure to reduce consumption the air. However, material core significantly influences performance exchangers, which becoming extremely important aspect meet requirements nearly zero-energy buildings. In this study, two counter-flow heat/enthalpy exchangers are experimentally tested under different operating conditions, values sensible, latent, total effectiveness...
MRI T1-mapping is an important non-invasive tool for renal diagnosis. Previous work shows that ΔT1 (cortex-medullary difference in T1) has significant correlation with interstitial fibrosis chronic kidney disease (CKD) allograft patients. However, measuring cortico-medullary values by manually drawing ROIs over cortex and medulla (a gold standard method) challenging, time-consuming, subjective requires human training. Moreover, such ROI placement may also affect the reproducibility. This...
In this research the optimization of energy consumption for DC refrigerator used in commercial cold store was conducted. To achieve object a test facility installed into introduction room national refrigeration company. Due to imperfect data given by producer, proportional-integral-derivative controller had be tuned setting correct proportional, integral and derivative parameter values optimal energetic operation. During system compared with very commonly traditional on home market operated...
Climate change is continuously bringing hotter summers and because of this fact, the use air-conditioning systems also extending in European countries. To reduce energy demand consumption these systems, it particularly significant to identify further technical solutions for direct cooling. In research work, a field study carried out on cooling performance an existing, operating ventilation system placed flat roof shopping center, located city Eger Hungary. The running supplies cooled air...
Background. The diagnosis of analgesic nephropathy has improved significantly with modern imaging techniques. We reviewed a large portion the Hungarian dialysis population to obtain additional insight into problem.
In heat and energy exchangers frosting decreases the effectiveness of exchangers. a previous research data were investigated experimentally considering effect [1]. Using these tested ambient temperature/enthalpy duration curves annual heating consumption ventilation systems predicted in three different climate European locations. During this investigation two common protection techniques also considered: outdoor air preheating airflow bypassing (supply side closing). The evaluation shows...
Reducing energy usage to save the environment is one of main goals for future. The losses in ventilation have a huge impact on consumption buildings. In this work, performance heat recovery wheel system equipped an air handling unit was tested year-round, and results compared with simulation output using TRNSYS software. selected conditioned space staff offices H&M fashion shop, located Eger, Hungary. Temperature, relative humidity, velocity sensors were placed at inlet outlet sections...
Abstract Background Benefits of variable mechanical ventilation based on the physiological breathing pattern have been observed both in healthy and injured lungs. These benefits not characterized pediatric models effect this mode regional distribution lung inflammation also remains controversial. Here, we compare structural, molecular functional outcomes reflecting between PVV conventional pressure-controlled (PCV) a model lungs acute respiratory distress syndrome (ARDS). Methods New-Zealand...
Aims and background The mortality of colorectal cancer continues to stagnate despite the development new therapeutic approaches. Therefore, identifying high-risk population groups could contribute prevention a considerable part deaths caused by tumors. Methods Fifty patients with colon 50 other, nonmalignant diseases were selected for study. Expression c-myc, Ha-ras p53 genes was determined in peripheral leukocytes participants. Results Marked elevations expression all three investigated...
The object of this research work is the comparison annual primary energy consumption different types heating systems, using two calculation methods. TRNSYS 18 software makes use dynamic simulation, while WinWatt calculates according to Hungarian implementation EPBD (Decree No. 7/2006). There were differences in results which could be caused by more precise software. Differences shown also weather data used computer tools that had one most important effects on investigation. number degree...