scholarly journals Control strategies for Energy Recovery Ventilators in the South of Europe for residential nZEB—Quantitative analysis of the air conditioning demand

2017 ◽  
Vol 146 ◽  
pp. 271-282 ◽  
Author(s):  
Silvia Guillén-Lambea ◽  
Beatriz Rodríguez-Soria ◽  
José M. Marín
Keyword(s):  
Quantitative Analysis ◽  
Air Conditioning ◽  
Energy Recovery ◽  
Control Strategies ◽  
The South ◽  
South Of Europe

Evaluation of the potential energy recovery for ventilation air in dwellings in the South of Europe

2016 ◽  
Vol 128 ◽  
pp. 384-393 ◽  
Author(s):  
Silvia Guillén-Lambea ◽  
Beatriz Rodríguez-Soria ◽  
José M. Marín
Keyword(s):  
Potential Energy ◽  
Energy Recovery ◽  
The South ◽  
South Of Europe

scholarly journals Seropositivity to canine tick-borne pathogens in a population of sick dogs in Italy

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Jairo Alfonso Mendoza-Roldan ◽  
Giovanni Benelli ◽  
Marcos Antonio Bezerra-Santos ◽  
Viet-Linh Nguyen ◽  
Giuseppe Conte ◽  
...  
Keyword(s):  
Borrelia Burgdorferi ◽  
Serological Test ◽  
Control Strategies ◽  
Central Italy ◽  
Rickettsia Conorii ◽  
High Seroprevalence ◽  
The South ◽  
Serum Samples ◽  
Serological Tests ◽  
Distribution Maps

Abstract Background Canine vector-borne diseases (CVBDs) associated to ticks are among the most important health issues affecting dogs. In Italy, Ehrlichia canis, Anaplasma spp., Rickettsia conorii and Borrelia burgdorferi (s.l.) have been studied in both healthy canine populations and those clinically ill with suspected CVBDs. However, little information is currently available on the overall prevalence and distribution of these pathogens in the country. The aim of this study was to assess the prevalence and distribution of tick-borne pathogens (TBPs) in clinically suspect dogs from three Italian macro areas during a 15-year period (2006–2020). Methods A large dataset (n = 21,992) of serological test results for selected TBPs in three macro areas in Italy was analysed using a Chi-square test to evaluate the associations between the categorical factors (i.e. macro area, region, year, sex and age) and a standard logistic regression model (significance set at P = 0.05). Serological data were presented as annual and cumulative prevalence, and distribution maps of cumulative positive cases for TBPs were generated. Results Of the tested serum samples, 86.9% originated from northern (43.9%) and central (43%) Italy. The majority of the tests was requested for the diagnosis of E. canis (47%; n = 10,334), followed by Rickettsia spp. (35.1%; n = 7725), B. burgdorferi (s.l.) (11.6%; n = 2560) and Anaplasma spp. (6.2%; n = 1373). The highest serological exposure was recorded for B. burgdorferi (s.l.) (83.5%), followed by Rickettsia spp. (64.9%), Anaplasma spp. (39.8%) and E. canis (28.7%). The highest number of cumulative cases of Borrelia burgdorferi (s.l.) was recorded in samples from Tuscany, central Italy. Rickettsia spp. was more prevalent in the south and on the islands, particularly in dogs on Sicily older than 6 years, whereas Anaplasma spp. was more prevalent in the north and E. canis more prevalent in the south and on the islands. Conclusions The results of this study highlight the high seroprevalence and wide distribution of the four TBPs in dogs with clinically suspected CVBDs from the studied regions of Italy. The very high seroprevalence of B. burgdorferi (s.l.) exemplifies a limitation of this study, given the use of clinically suspect dogs and the possibility of cross-reactions when using serological tests. The present research provides updated and illustrative information on the seroprevalence and distribution of four key TBPs, and advocates for integrative control strategies for their prevention. Grapic abstract

Optimal Control Strategy for Ice-Storage System Based on Hourly Dynamic Load Simulation

2013 ◽  
Vol 671-674 ◽  
pp. 2515-2519
Author(s):  
Xue Mei Wang ◽  
Zhen Hai Wang ◽  
Xing Long Wu
Keyword(s):  
Optimal Control ◽  
Air Conditioning ◽  
Control Strategies ◽  
Storage System ◽  
Simulation Software ◽  
Ice Storage ◽  
Optimal Control Strategy ◽  
Air Conditioning System ◽  
Energy Plus ◽  
Load Simulation

This project aims to study the optimal control model of the ice-storage system which is theoretically close to the optimal control and also applicable to actual engineering. Using Energy Plus, the energy consumption simulation software, and the simple solution method of optimal control, researchers can analyze and compare the annual operation costs of the ice-storage air-conditioning system of a project in Beijing under different control strategies. Researchers obtained the power rates of the air-conditioning system in the office building under the conditions of chiller-priority and optimal contro1 throughout the cooling season. Through analysis and comparison, they find that after the implementation of optimal control, the annually saved power bills mainly result from non-design conditions, especially in the transitional seasons.

Performance Improvement of Membrane Energy Exchanger using Ultrasound for HVAC Application

2021 ◽  
pp. 1-29
Author(s):  
Gurubalan Annadurai ◽  
Maiya M.P. ◽  
Patrick Geoghegan ◽  
Carey Simonson
Keyword(s):  
Air Conditioning ◽  
Energy Recovery ◽  
Mass Transfer Process ◽  
Porous Membrane ◽  
Air Conditioning System ◽  
Energy Saving Potential ◽  
Recovery Processes ◽  
Additional Resistance ◽  
Membrane Energy ◽  
Ac Systems

Abstract Air conditioning (AC) systems consume the maximum proportion of the total electricity used in the building sector. The demand of AC systems is expected to increase exponentially in the coming years due to various reasons such as climate change, increasing affordability and increase in living floor space. Membrane-based liquid desiccant AC system along with energy recovery ventilating equipment is considered as a prospective alternative to the conventional air conditioning system (CACS) and has the potential to meet the increasing current and future AC demand in a sustainable manner. Its efficiency and energy saving potential with respect to CACS depends on the performance of the membrane-based dehumidifier, regenerator and energy recovery ventilating equipment which are commonly referred to as membrane energy exchangers (MEEs). MEE is an indirect exchanger type in which the working streams are separated by a porous membrane. This intermediate membrane creates an additional resistance for the heat and mass transfer process in the MEE. To reduce the resistance, this study experimentally and numerically investigates the influence of ultrasound on the performance of the MEE for dehumidification, humidification (applicable for membrane-based evaporative cooling and desiccant regeneration devices) and energy recovery processes. It is found that the vibration due to ultrasound has the potential to improve the effectiveness of the MEE by 55% in the dehumidification process and by 65% in the humidification and energy recovery processes.

scholarly journals Zbigniew Herbert’s Journeys to the South. A Conversation with Andrzej Franaszek and Francesco Matteo Cataluccio, Conducted by Krystyna Pietrych (during the discussion panel at the 12th ‘Puls Literatury’ Festival in Łódź, 8 December 2018)

2019 ◽  
pp. 407-420
Author(s):  
Francesco Matteo Cataluccio ◽  
Andrzej Franaszek ◽  
Krystyna Pietrych
Keyword(s):  
The South ◽  
Mediterranean Culture ◽  
The Mediterranean ◽  
Literary Output ◽  
Discussion Panel ◽  
South Of Europe ◽  
Dividing Line

The topic of a conversation of three literary scholars which took place in the last months of the Zbigniew Herbert Year (2018) is the experience recorded in the poet’s poems and essays of the Mediterranean culture, antiquity as a tool of cognition, an important code as well as the experience of his real journeys to the south of Europe being a kind of dividing line in his literary output and resonating in it.

scholarly journals Proposed Strategies for Improving Poor Hygrothermal Conditions in Museum Exhibition Rooms and Their Impact on Energy Demand

Energies ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 620 ◽  
Author(s):  
Joanna Ferdyn-Grygierek ◽  
Krzysztof Grygierek
Keyword(s):  
Relative Humidity ◽  
Energy Demand ◽  
Air Conditioning ◽  
Control Strategies ◽  
Internal Heat ◽  
Current Method ◽  
Dramatic Improvement ◽  
Precise Control ◽  
Heating And Cooling ◽  
Microclimate Conditions

In museums, poor microclimate conditions, especially large changes in relative humidity and temperature, can lead to serious deterioration of the exhibits. Properly designed heating, ventilation, and air conditioning (HVAC) systems for precise control of the air parameters are required. However, due to the financial restrictions of museums, complex air-conditioning systems are often not feasible. In this study, we tested and propose novel methods to reduce the short- and long-term fluctuations in the relative humidity in exhibition rooms of a Polish museum. The methods only include indoor temperature and ventilation airflow control strategies, without the use of (de)humidification equipment. The analysis is based on simulations using EnergyPlus software. A multi-zone thermal model of the museum building was validated and calibrated with measured data. A full calendar year was simulated for five control cases (including the current method used) and two internal heat gain schedules. The energy demand for heating and cooling for each case was calculated. The combination of temperature control and adequate ventilation using ambient airflow allows for dramatic improvement in the microclimate conditions. The proportion of the year when the instantaneous indoor relative humidity is ±5% from set point decreased from 85% to 20%. A significant effect was obtained over the summer months.

scholarly journals Assessing the suitability of recovering shrub biowaste involved in wildland fires in the South of Europe through torrefaction mobile units

2019 ◽  
Vol 236 ◽  
pp. 551-560 ◽  
Author(s):  
María González Martínez ◽  
Capucine Dupont ◽  
Denilson da Silva Perez ◽  
Luis Míguez-Rodríguez ◽  
Maguelone Grateau ◽  
...  
Keyword(s):  
Wildland Fires ◽  
The South ◽  
South Of Europe
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