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Article | 28-August-2018

ON-SITE DIAGNOSTICS OF THE MECHANICAL VENTILATION IN OFFICE BUILDINGS

The methodology for inspecting the ventilation system and on-site measurements for office buildings has been proposed under the project “Development of thermal diagnostics of buildings”. The inspections of the ventilation system in two office buildings were conducted. The design documentations were compared with the existing state of the installations. The measurements of the air flow volume, of the temperature of ventilation air and of the volume flow of the heating medium and its temperature

Monika BŁASZCZOK, Małgorzata KRÓL, Maria HURNIK

Architecture, Civil Engineering, Environment, Volume 10 , ISSUE 2, 145–156

Article | 26-August-2018

CURRENT VENTILATION AND AIR QUALITY PROBLEMS AGAINST HISTORICAL SOLUTIONS

The paper describes the issue of ventilation and air quality in buildings with reference to regular tightening of heating standards. The purpose of the work is to show the risks related to excessive insulation of buildings, which is thought to have a negative influence on users’ well-being and health. The development of issues related to thermal comfort has often led to erroneous solutions. As a result, problems such as “Sick Building Syndrome” and “Building Related Illness” has developed in

Rafał RADZIEWICZ-WINNICKI

Architecture, Civil Engineering, Environment, Volume 9 , ISSUE 2, 29–36

Article | 03-November-2017

MODELING AND CONTROLLER DESIGN FOR THE VVS-400 PILOT SCALE HEATING AND VENTILATION SYSTEM

In this paper, a heating and ventilation model VVS-400 from Instrutek, Larvik, Norway is modeled using ARX model structure and linear black-box technique. The conventional PID controller and artificial Fuzzy controller are designed based on the approximated plant model and real plant model. The approximated plant model is estimated using System Identification approach while the real plant model is developed by interfacing the Real-time Windows Target toolbox in Matlab with real VVS-plant by

M.F. Rahmat, N.A. Mohd Subha, Kashif M.Ishaq, N. Abdul Wahab

International Journal on Smart Sensing and Intelligent Systems, Volume 2 , ISSUE 4, 579–601

research-article | 07-January-2020

RESEARCH OF SINGLE ROOM DECENTRALIZED HEAT RECOVERY UNIT

1. INTRODUCTION New devices emerging on the market such as small ventilation equipment contribute to the need for research on their compliance with manufacturers’ data. They are new, poorly known and still not very popular. However, they have great potential to ventilate single rooms. Moreover, they are compact and inexpensive. One of them is single room decentralized heat recovery unit, commonly called compact recuperator, which can be installed in almost every building in the external

Piotr KOPER, Agnieszka PALMOWSKA, Agnieszka MYSZKOWSKA

Architecture, Civil Engineering, Environment, Volume 12 , ISSUE 4, 109–114

research-article | 30-November-2017

NUMERICAL MODELLING OF UNDERVENTILATED FIRE IN A COMPARTMENT

1. INTRODUCTION The influence of ventilation on the development of fire is widely known. Without the air, the fire will stop developing and maybe even extinguishing of the fire takes place. A sudden supply of a large amount of air, for example, by opening the door or falling out of the windows, may cause a re-igniting of a fading fire. Under certain conditions, it can even create a backdraught, a very dangerous phenomenon for people’s lives. The influence of ventilation on the fire development

Małgorzata KRÓL, Aleksander KRÓL

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 2, 115–123

Research Article | 08-February-2019

COMPREHENSIVE ENERGY DIAGNOSTICS CARRIED OUT IN A RESIDENTIAL BUILDING – A CASE STUDY

Abstract The article presents the case study of the comprehensive diagnosis of an existing residential building with natural ventilation. The results of quick diagnostics of thermal insulation of the building, the heating system, ventilation, domestic hot water preparation and the quality of the environment in the rooms were presented. Based on the data obtained by measurements, the energy performance of the building was prepared using the building certification calculation method. The energy

Dorota BARTOSZ

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 4, 137–150

research-article | 07-January-2020

MODELLING OF THE AIRFLOW IN THE PASSENGER COACH

– heat transfer coefficient, wm2·K RH – relative humidity, % w – velocity, m/s wmax – maximum velocity, m/s wmin – minimal velocity, m/s 1. INTRODUCTION Every day people spend a lot of time in public transport, for example buses, trams, trains or subways. To make their journey comfortable, appropriate thermal conditions must be provided by HVAC (Heating, Ventilation, Air Conditioning) systems. Thermal comfort is achieved when passengers perceive the air temperature, humidity, air movement, and

Izabela SARNA, Agnieszka PALMOWSKA

Architecture, Civil Engineering, Environment, Volume 12 , ISSUE 4, 125–133

research-article | 30-November-2017

UTILIZATION OF MULTIPLE SHORT HEAT CONSUMPTION MEASUREMENT METHOD FOR DIAGNOSTICS OF HEAT SOURCE OF EXISTING BUILDING: PART 2: PRACTICAL USE OF THE METHOD

1. INTRODUCTION This section presents the practical calculation of the number of ventilation air exchanges using the short measurement method for an existing multi-family building. The analyzes were carried out using archival materials and the analysis covered the days for which complete measurement data was required. Nomenclature in the formulas is presented in the first part. 2. OBJECT DESCRIPTION The object for the analysis is a thirty-year multi-family building. Building located in 3

Henryk FOIT, Piotr LUBINA, Dawid TĄTA

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 2, 99–106

research-article | 30-November-2017

UTILIZATION OF MULTIPLE SHORT HEAT CONSUMPTION MEASUREMENT METHOD FOR DIAGNOSTICS OF HEAT SOURCE OF EXISTING BUILDING: PART 1: THEORETICAL BASIS OF THE METHOD

introduction of heterogeneous windows of varying degrees of thermal resistance and air tightness make it difficult to correctly assess the heat demand by calculation methods. In residential buildings, especially built more than 15 years ago, natural ventilation is usually used. In [4] there is included a procedure for determining the required heat source power based on a long-term measurement that includes determining seasonal heat consumption and determining the heat gains and loss of the temperature

Henryk FOIT, Piotr LUBINA, Dawid TĄTA

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 1, 117–131

Article | 28-August-2018

COMPREHENSIVE ON SITE THERMAL DIAGNOSTICS OF BUILDINGS - POLISH PRACTICAL EXPERIENCE

University of Technology in Gliwice was a leader of the scientific-industrial consortium implementing the task. The main objectives of Task 4 and achieved relevant results are presented in the paper. A new method for the rapid on-site thermal diagnosis of a building envelope and systems of heating, ventilation, air conditioning and domestic hot water preparation and the diagnosis of indoor environment quality, as well as a method for drawing up energy performance certificates based on the measurements

Zbigniew POPIOLEK, Przemysław KATEUSZ

Architecture, Civil Engineering, Environment, Volume 10 , ISSUE 2, 125–132

Article | 28-August-2018

ESTIMATION OF THE SEASONAL DEMAND FOR COOLING BASED ON THE SHORT-TERM DATA

The paper analyzes the possibility of using the energy signature method based on the linear regression to determine the seasonal energy demand for cooling and ventilation in the office building. The “extended” energy signature method (H-m method) was described and applied. In accordance with Standard (EN 15603) the estimation of energy consumption for cooling can be performed for a period shorter than the entire season, but data range must be appropriate to obtain the correct accuracy of the

Dorota BARTOSZ, Aleksandra SPECJAŁ

Architecture, Civil Engineering, Environment, Volume 10 , ISSUE 2, 133–143

Research Article | 08-February-2019

RESEARCH ON THERMAL CONDITIONS IN VENTILATED LARGE SPACE BUILDING

Agnieszka PALMOWSKA, Gabriel MICZKA

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 4, 169–178

research-article | 07-January-2020

NUMERICAL STUDIES ON THE NATURAL SMOKE VENTING OF ATRIA

numerical model of the atrium was the same as the real atrium described by Gutierrez-Montes [21]. In the model, the natural ventilation was designed. There are four square exhaust vents on the roof, each of the dimensions of 0.5 m. There are also four open vents at the lower parts of the walls. Two on the wall A and two on the wall C. Each vent has dimensions of 4.75×2.25 m. The model with its dimensions is shown in Fig. 1. Figure 1. Layout and main dimensions of the model The pyramidal roof of the

Karolina ŻYDEK, Małgorzata KRÓL

Architecture, Civil Engineering, Environment, Volume 12 , ISSUE 4, 135–144

Article | 01-June-2012

CONTINUOUS TIME IDENTIFICATION AND DECENTRALIZED PID CONTROLLER OF AN AEROTHERMIC PROCESS

proposed method, the PID controller with and without decoupling is implemented on an aerothermic process. It is a pilot scale heating and ventilation system equipped with a heater grid and a centrifugal blower, fully connected through the Humusoft MF624 data acquisition system for real time control. The outcome of the experimental results is that the main control objectives, such as set-point tracking and interactions rejection are well achieved. The experimental results have shown that the proposed

M. Ramzi, H. Youlal, M. Haloua

International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 2, 487–503

Article | 01-December-2012

DECENTRALIZED PI-D CONTROLLER APPLIED TO AN AEROTHERMIC PROCESS

The aerothermic process is a pilot scale heating and ventilation system. It is equipped with a heater grid and a centrifugal blower, fully connected through the Humusoft MF624 data acquisition system for real time control. The interaction between its main variables is considered as challenging for mono-variable controllers. An abrupt change in the ventilator speed might cause an undesirable disturbance in the air temperature representing a factor that must be managed to conserve energy. To

M. Ramzi, N. Bennis, M. Haloua, H. Youlal

International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 4, 1003–1018

Article | 01-December-2014

CENTRALIZED DISCRETE STATE SPACE MODEL PREDICTIVE CONTROL AND DECENTRALIZED PI-D CONTROLLER OF AN AEROTHERMIC PROCESS

The aerothermic process is a pilot scale heating and ventilation system equipped with a heater grid and a centrifugal blower. The interaction between its main variables is considered as challenging for mono-variable controllers. A change in the ventilator speed affects the temperature behavior which represents a factor that must be managed for energy saving and the human welfare. This paper presents an experimental comparison between a Centralized Discrete State Space Model Predictive Control

M. Ramzi, H. Youlal

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 4, 1830–1849

Research paper | 12-December-2017

A HIGH RESOLUTION OF HUMAN BREATH GAS SENSOR AND THE ANALYSIS OF HYPERVENTILATION FOR RESCUE ROBOTICS IN DISASTER ZONES (IRIS2010)

Hideki Toda, Genci Capi

International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 2, 292–303

Article | 27-August-2018

PERFORMANCE ASSESSMENT OF AIR CONDITIONING INSTALLATION IN MULTIFUNCTIONAL SPORTS HALL USING CFD SIMULATIONS

Piotr KOPER

Architecture, Civil Engineering, Environment, Volume 9 , ISSUE 4, 123–134

research-article | 31-October-2020

ANALYSIS OF HEAT DEMAND AND THERMAL COMFORT IN NATURALLY VENTILATED SINGLE-FAMILY HOUSES OF VARIOUS CONSTRUCTIONS

, e.g. ventilative cooling. Free cooling through ventilation is one of the most effective cooling techniques because cold external air can directly lower the temperature of the indoor air. For example, the work of Alonso et al. [11] showed energy savings when used ventilative cooling in a building located in Norway as a result of utilizing the potential of low outside temperatures during the day or night. Article by Yao et al. [6] presented a study on the natural ventilative cooling potential of

Joanna FERDYN-GRYGIEREK, Krzysztof GRYGIEREK, Anna GUMIŃSKA, Łukasz BARAN, Magdalena BARWA, Kamila CZERW, Paulina GOWIK, Klaudia MAKSELAN, Klaudia POTYKA, Agnes PSIKUTA

Architecture, Civil Engineering, Environment, Volume 13 , ISSUE 3, 53–71

research-article | 07-January-2020

ANALYSIS OF WIND CONDITIONS AROUND A BUILDING DEVELOPMENT AS A PART OF ITS FORM DESIGNING PROCESS, A CASE STUDY

element of the pro-ecological approach to design in the 1990’s [6]. The importance of phenomena occurring in arrangements known as street canyons, namely the spaces between two parallel lengthened buildings, the typical street layouts in cities, has been emphasised in the experiments. Simultaneously, studies on numerical methods of wind simulation (computational fluid dynamics CFD) were being developed [7].The first achievements concerning space ventilation between buildings in the area of CFD include

Katarzyna ZIELONKO-JUNG

Architecture, Civil Engineering, Environment, Volume 12 , ISSUE 4, 51–58

research-article | 30-November-2017

THERMAL IMPROVEMENT IN RESIDENTIAL BUILDINGS IN VIEW OF THE INDOOR AIR QUALITY – CASE STUDY FOR POLISH DWELLING

Standard PN-83/B-03430/Az3:2000 [7] in a multifamily building of up to 9 stories, natural or mechanical ventilation can be used. Higher buildings should have mechanical exhaust ventilation or supply-exhaust ventilation. The standard specifies the minimum ventilation air stream in a dwelling (the sum of exhaust air streams from auxiliary rooms): For kitchen with external window, used gas or coal cookers – 70 m3/h, For kitchen with external window, used electric cookers, in apartments for up to 3 people

Monika BLASZCZOK, Andrzej BARANOWSKI

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 3, 121–130

Research Article | 15-February-2020

Monitoring of the lung fluid movement and estimation of lung area using Electrical Impedance Tomography: A Simulation Study

patients.  Therefore, a finite element method (FEM)model of a human thorax in 3 dimensional platform of FEM Multiphysics software is created and is tested with new ventilation indices regarding their ability to quantitatively describe structural changes in the lung due to the gravitationally dependent lung collapse. Additionally, analysis is made to find the electrode pairs capable of separating the lung and heart activity when a particular amount of constant current is injected through them are

Deborshi Chakraborty, Madhurima Chattopadhyay

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–5

Case report | 14-October-2020

Case report: four donors with granulocyte-specific or HLA class I antibodies implicated in a case of transfusion-related acute lung injury (TRALI)

revealed marked hypoxemia (PO2 6.58 kPa) and the chest X-ray showed new diffuse bilateral alveolar infiltrates. The patient remained hypoxemic with unstable oxygen saturations over the following 7 days, during which time she required 60 to 100 percent oxygen administered by face mask. Intravenous methylprednisolone (200 mgs) was given for 5 days. Mechanical ventilation was not required. The lung infiltrates gradually cleared over 3 to 4 days and the patient showed clinical improvement after 1 week

A. Davoren, O.P. Smith, C.A. Barnes, E. Lawler, R.G. Evans, G.F. Lucas

Immunohematology, Volume 17 , ISSUE 4, 117–121

Article | 27-August-2018

CONTRIBUTION TO THE SHORT MEASUREMENT METHOD FOR DETERMINING THE THERMAL CHARACTERISTICS OF EXISTING BUILDINGS: TOTAL HEAT TRANSMISSION COEFFICIENT ESTIMATION BASED ON DOUBLE MEASUREMENT

Henryk FOIT, Agata ŚWIERC, Wojciech FOIT

Architecture, Civil Engineering, Environment, Volume 10 , ISSUE 1, 103–115

Case report | 10-January-2018

Effectiveness of the Sitting Position Without Back Support

Purpose: In the field of neuroscience nursing in Japan, the “sitting position without back support” (SB) has promoted earlier ambulation, improved level of consciousness, and prevented disuse syndrome in patients with disturbance of consciousness and impaired mobility. This research was conducted with the aim of examining if respiratory function improved using SB on acute patients on ventilation in ICU. Method: The research design involved daily administration of

Nobuko Okubo

Australasian Journal of Neuroscience, Volume 25 , ISSUE 1, 31–39

research-article | 30-November-2017

PARTITIONS AND THE FLOW OF SMOKE IN LARGE VOLUME BUILDINGS

-state solution (not time dependent). If sufficiently large opening is provided, the conditions within a compartment can be considered tenable, despite lack of any smoke control system within. Limiting the width or height of the opening to minimize the sizing of mall ventilation system is an irresponsible approach, as the small openings generate much larger smoke growth factor (Mb/Mo) than large ones. The popular value of 2.00 of this factor should be applied only for large openings, and numerical

Wojciech WĘGRZYŃSKI

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 1, 155–164

Research Article | 23-May-2019

PANDEMIC HUMAN CORONAVIRUS – CHARACTERIZATION AND COMPARISON OF SELECTED PROPERTIES OF HCOV-SARS AND HCOV-MERS

; 2000 ill, > 700 deaths) although its intensity decreased. Both viruses are zoonotic and require at least two “host jumps” for the transmission of the infection to humans: for HCoV-SARS – from bat to palm civet and then to human; for HCoV-MERS – from bats to camels and subsequently to humans. Primary mode of transmission is droplet in close contact (< 1 m), but both viruses remain active in aerosol (up to 24 h), so infection can be also spread by air (ventilation). The

Katarzyna W. Pancer

Postępy Mikrobiologii - Advancements of Microbiology, Volume 57 , ISSUE 1, 22–32

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