scholarly journals Thermal Comfort Modeling of a Church Heated with Static Heaters

2019 ◽  
Vol 9 (1) ◽  
pp. 121-124
Author(s):  
Florin-Emilian Turcanu ◽  
Ana Diana Ancas ◽  
Mihai Profire ◽  
Marina Verdes ◽  
Marius Costel Balan
Keyword(s):  
Temperature Distribution ◽  
Thermal Comfort ◽  
Heating System ◽  
Xviii Century ◽  
Static Heating ◽  
The Impact ◽  
The Church

Abstract This paper evaluates a static heating system from a church. They are presented in almost every church. Temperature distribution in the church is done in 2d plane. The simulation is presented on a particular example, the Dormition of the Mother of God Church from Jassy, Romania. The heating system had been simulated in FLUENT and the consequences over the interior climate in the church are showed. An important issue is the impact of this system over the artwork, the church being rise in XVIII century.

scholarly journals The indoor climate modelling and the economic analysis regarding the energetic rehabilitation of church

2020 ◽  
Vol 1 ◽  
pp. 67-73
Author(s):  
Florin-Emilian Turcanu ◽  
Marina Verdes ◽  
Vasilica Ciocan ◽  
Catalin George Popovici ◽  
Sebastian Valeriu Hudisteanu
Keyword(s):  
18Th Century ◽  
Environmental Issues ◽  
Heating System ◽  
Primary Energy ◽  
Virgin Mary ◽  
Climate Modelling ◽  
Indoor Climate ◽  
Heating Systems ◽  
The Impact ◽  
The Church

The paper describes the behaviour of a heating system with radiators in a cult building. There has commonly used in many churches with many shortcomings. The temperature distribution in the analysed space is simulated in 2D. The simulation is based on an example, the Cathedral of the Assumption of the Virgin Mary in Jassy. The heating system with radiators simulated with the FLUENT program, the results being edifying for the factual state of the building. An important aspect is the impact of these heating systems on the works of art, the church being the 18th — century edifice. Current environmental issues lead to the continuous development of technologies used to reduce primary energy consumption. Churches are an invaluable wealth, sheltering heritage elements preserved in museums and historic buildings. Unheated churches have been used for centuries. Then, after installing one or more different heating systems, signs of rapid degradation appeared.

scholarly journals Experimental and statistical survey on local thermal comfort impact on working productivity loss in university classrooms

2019 ◽  
Vol 23 (1) ◽  
pp. 379-392 ◽  
Author(s):  
Tamara Bajc ◽  
Milos Banjac ◽  
Maja Todorovic ◽  
Zana Stevanovic
Keyword(s):  
Thermal Comfort ◽  
Productivity Loss ◽  
Thermal Conditions ◽  
Co2 Concentration ◽  
Heating System ◽  
Indoor Environmental Quality ◽  
Personal Factor ◽  
Predicted Mean Vote ◽  
Local Thermal Comfort ◽  
The Impact

The paper presents an experimental analysis of the relationship between local thermal comfort and productivity loss in classrooms. The experimental investigation was performed in a real university classroom during the winter semester in city of Belgrade. Measurements were taken for four scenarios, with different indoor comfort conditions. Variations were made by setting the central heating system on/off, adding an additional heat source to provoke higher indoor temperatures, and measuring the radiant asymmetry impact. Innovative questionnaires were developed especially for the research, in order to investigate students? subjective feelings about local thermal comfort and indoor environmental quality. Local predicted mean vote and predicted percentage dissatisfied indices were calculated using data measured in situ. The results were compared to existing models recommended in literature and European and ASHRAE standards. Student productivity was evaluated using novel tests, designed to fit the purposes of the research. Surveys were conducted for 19 days under different thermal conditions, during lectures in a real classroom, using a sample of 240 productivity test results in total. Using the measured data, new correlations between the predicted mean vote, CO2, personal factor and productivity loss were developed. The research findings imply that local thermal comfort is an important factor that can impact productivity, but the impact of the personal factor is of tremendous importance, together with CO2 concentration in the classroom.

Effects of Exterior Window on Temperature Distribution and Thermal Comfort of Commercial Buildings with Radiant Floor Heating System

2011 ◽  
Vol 55-57 ◽  
pp. 219-223 ◽  
Author(s):  
Wei Cai ◽  
Zhao Hui Wu ◽  
Jun Ming Li
Keyword(s):  
Temperature Distribution ◽  
Boundary Conditions ◽  
Thermal Comfort ◽  
Thermal Environment ◽  
Heating System ◽  
Commercial Buildings ◽  
Radiant Heat Transfer ◽  
Radiant Floor Heating System ◽  
Radiant Floor Heating ◽  
Floor Heating

The purpose of this study is to investigate the effect of boundary conditions on the temperature distribution and thermal comfort of a radiant floor heating system and their practical application to commercial buildings. Indoor thermal environment, along with human response, was studied by means of CFD. The three-dimensional temperature distribution was numerically simulated with the zero-equation turbulent model. And two typical operating models, which there is and there is no windows in the room were analyzed in detail. The results show that the radiant floor heating system can meet the demand of comfortable degree, and that the temperature field is enormously influenced by boundary conditions. It is necessary to install curtains to decrease the radiant heat transfer of the cooling glass surface and other control methods to ensure the room to be a thermal comfortable environment.

scholarly journals Development of a simulation model of the heating process in the passenger cabin of a vehicle under low temperature conditions

2021 ◽  
Vol 18 (5) ◽  
pp. 510-523
Author(s):  
D. A. Aleshkov ◽  
M. V. Banket ◽  
M. V. Sukovin
Keyword(s):  
Thermal Comfort ◽  
Low Temperatures ◽  
Heating System ◽  
The Arctic ◽  
Theoretical Studies ◽  
Passenger Compartment ◽  
Wheeled Vehicle ◽  
The Impact ◽  
Wheeled Vehicles ◽  
Passenger Cabin

Introduction. A distinctive feature of working conditions in the Arctic territories is the long period of exposure to low temperatures. Passenger transportation by road is becoming one of the key aspects of ensuring the continuity of the production process. The task of delivering workers to the place of work, moving them between work zones during a work shift is solved by using wheeled vehicles of various categories. One of the most widespread types of wheeled vehicles used to transport workers is the M3 category wheeled vehicles with a capacity of no more than 22 passengers. Ensuring the thermal comfort of vehicle passengers seems to be relevant, since ensuring biophysical compatibility minimizes the risks of cold injury by workers and maintains a high level of performance.Materials and methods. The results of the analysis of the Russian and foreign studies in the direction of ensuring thermal comfort and ensuring biophysical compatibility in confined spaces are presented. The results of computer modelling of the dynamics of microclimate parameters in the passenger cabin of a wheeled vehicle of M3 category with a capacity of no more than 22 passengers are presented.Results. The paper presents the results of theoretical studies, microclimate parameters in the passenger compartment of vehicles, taking into account the breathing of passengers and changes in the gas composition of exhaled air. Theoretical studies of the operation of the heating system of the passenger compartment were carried out, taking into account the refined breathing model of passengers. Distributions of microclimate parameters in the section of the passengercompartment were obtained when using a heating system with one heater; the impact of passengers’ breathing on the parameters of the microclimate in the passenger compartment was assessed.Discussion and conclusion. Based on the numerical solution of the system of heat transfer equations, directions for further research and recommendations are formulated to ensure thermal comfort in the passenger compartment of a wheeled vehicle at low temperatures. The materials of the work may be of interest to specialists involved in the design and ergonomics of wheeled vehicles, labor protection.

Investigating the Impact of Ornamental Plants Correlated with Indoor Thermal Comfort and Eco-Energy

2017 ◽  
Vol 8 (5) ◽  
pp. 221
Author(s):  
Sugiono Sugiono ◽  
Suluh E. Swara ◽  
Wisnu Wijanarko ◽  
Dwi H. Sulistyarini
Keyword(s):  
Thermal Comfort ◽  
Ornamental Plants ◽  
Indoor Thermal Comfort ◽  
The Impact

Pentecostalism and African diaspora : a case study of the Redeemed Christian Church of God (RCCG), in North America

2020 ◽  
Vol 1 (2) ◽  
pp. 77-92
Author(s):  
Rotimi Williams Omotoye
Keyword(s):  
United States ◽  
North America ◽  
United States Of America ◽  
The United States ◽  
Church Of God ◽  
Sources Of Information ◽  
Christian Church ◽  
Secondary Sources ◽  
The Impact ◽  
The Church

Pentecostalism as a new wave of Christianity became more pronounced in 1970's and beyond in Nigeria. Since then scholars of Religion, History, Sociology and Political Science have shown keen interest in the study of the Churches known as Pentecostals because of the impact they have made on the society. The Redeemed Christian Church of God (RCCG) was established by Pastor Josiah Akindayomi in Lagos,Nigeria in 1952. After his demise, he was succeeded by Pastor Adeboye Adejare Enock. The problem of study of this research was an examination of the expansion of the Redeemed Christian Church of God to North America, Caribbean and Canada. The missionary activities of the church could be regarded as a reversed mission in the propagation of Christianity by Africans in the Diaspora. The methodology adopted was historical. The primary and secondary sources of information were also germane in the research. The findings of the research indicated that the Redeemed Christian Church of God was founded in North America by Immigrants from Nigeria. Pastor Adeboye Enock Adejare had much influence on the Church within and outside the country because of his charisma. The Church has become a place of refuge for many immigrants. They are also contributing to the economy of the United States of America. However, the members of the Church were faced with some challenges, such as security scrutiny by the security agencies. In conclusion, the RCCGNA was a denomination that had been accepted and embraced by Nigerians and African immigrants in the United States of America.

Poland

2017 ◽  
Author(s):  
Detlef Pollack ◽  
Gergely Rosta
Keyword(s):  
Catholic Church ◽  
Agricultural Production ◽  
The State ◽  
Religious Culture ◽  
Key Factors ◽  
Pope John Paul Ii ◽  
National Values ◽  
The Impact ◽  
State Socialist ◽  
The Church

The chapter on Poland focuses on two questions. Why, in contrast to all other state-socialist countries, did the church’s capacity for integration actually increase rather than decrease despite persecution and discrimination during the communist period? And why has this capacity also remained more or less constant (albeit to a lesser extent) in the period since the end of communist rule? The authors have identified four key factors in the remarkable resistance of the Polish Catholic Church during the period of communist persecution: the fusion of religious and national values, the specific conflict dynamics of the church’s struggle with the state, the structural conservatism of agricultural production in Poland, and the actions of Pope John Paul II. Explanations for the surprising stability of religiosity in Poland after 1990 point to the behaviour of the Church itself, to the internal pluralization of Catholicism, and to the impact of a homogeneous religious culture.

scholarly journals Urban Heat Islands and Thermal Comfort: A Case Study of Zorrotzaurre Island in Bilbao

2021 ◽  
Vol 13 (11) ◽  
pp. 6106
Author(s):  
Irantzu Alvarez ◽  
Laura Quesada-Ganuza ◽  
Estibaliz Briz ◽  
Leire Garmendia
Keyword(s):  
Thermal Comfort ◽  
Heat Waves ◽  
Urban Environments ◽  
Urban Heat Islands ◽  
Extreme Weather Events ◽  
Climate Index ◽  
Physiological Equivalent Temperature ◽  
Heat Islands ◽  
The North ◽  
The Impact

This study assesses the impact of a heat wave on the thermal comfort of an unconstructed area: the North Zone of the Island of Zorrotzaurre (Bilbao, Spain). In this study, the impact of urban planning as proposed in the master plan on thermal comfort is modeled using the ENVI-met program. Likewise, the question of whether the urbanistic proposals are designed to create more resilient urban environments is analyzed in the face of increasingly frequent extreme weather events, especially heat waves. The study is centered on the analysis of temperature variables (air temperature and average radiant temperature) as well as wind speed and relative humidity. This was completed with the parameters of thermal comfort, the physiological equivalent temperature (PET) and the Universal Temperature Climate Index (UTCI) for the hours of the maximum and minimum daily temperatures. The results demonstrated the viability of analyzing thermal comfort through simulations with the ENVI-met program in order to analyze the behavior of urban spaces in various climate scenarios.

scholarly journals Influence of Masks Protecting against SARS-CoV-2 on Thermal Comfort

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3315
Author(s):  
Ewa Zender-Świercz ◽  
Marek Telejko ◽  
Beata Galiszewska
Keyword(s):  
Thermal Comfort ◽  
Public Spaces ◽  
Point Of View ◽  
The Other ◽  
Health Policies ◽  
Thermal Manikin ◽  
Public Health Policies ◽  
Protective Shield ◽  
Full Face ◽  
The Impact

Due to the spread of the SARS-CoV-2 virus, most countries have tightened their public health policies. One way to limit the spread of the virus is to make mouth and nose cover compulsory in public spaces. The article presents the impact of wearing masks on the perception of thermal comfort. The following masks were analysed: FFP2, cotton, medical, PM2.5, half-face protective shield plastic and full-face protective shield plastic. The research was carried out for two scenarios of an ambient temperature: −20 and 30 °C. A thermal manikin was used for the tests. In the case of when a temperature equals 20 °C, the dry masks increase comfort, both general and local, while wet masks reduce comfort. On the other hand, at 30 °C, only wet masks do not increase discomfort. In addition, moist masks require less heat flux to achieve a certain skin temperature. However, it should be remembered that it is not advisable to wet the masks from the health point of view.

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