scholarly journals Indoor Climate Modelling and Economic Analysis Regarding the Energetic Rehabilitation of a Church

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2815
Author(s):  
Florin-Emilian Țurcanu ◽  
Cătălin-George Popovici ◽  
Marina Verdeș ◽  
Vasilică Ciocan ◽  
Sebastian-Valeriu Hudișteanu
Keyword(s):  
Turbulence Models ◽  
Heating System ◽  
Mixed System ◽  
Climate Modelling ◽  
Indoor Climate ◽  
Heating Systems ◽  
System A ◽  
Hot Air ◽  
Air Heating ◽  
Computational Fluid Dynamics Cfd

Background: The aim of our study was to identify an optimal heating system for the analyzed church. We also evaluated the energy consumption of the existing system and of those proposed in order to choose the best heating system. Methods: We analyzed the current existing heating system, a mixed system (static heaters and hot air heating) in a Romanian heritage church, build in the 16th century, and we compared it with an underfloor heating system that has been mentioned in the literature as an alternative for church heating. We used a computational fluid dynamics (CFD) analysis of the indoor climate with two turbulence models (k-ε and k-ω). Results: Comparing the two heating systems through boxplot graphs, we could highlight pertinent conclusions regarding the temperatures and velocities of the measured air currents. Thus, of all the heating systems, the underfloor heating had the lowest temperatures, but the highest air velocities, in the churchgoers area, especially under the towers zone. Conclusions: We observed that the underfloor heating system was more efficient than the existing heating system (static heaters and hot air heating), ensuring heritage conservation and high thermal comfort to the churchgoers.

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 Airflow mixing augmentation device for hot-air heating systems in modular boilers

2016 ◽  
Vol 92 ◽  
pp. 01049
Author(s):  
Nikolay I. Kurilenko ◽  
Pavel A. Artamonov ◽  
Elena Yu. Kurilenko ◽  
Gennady Ya. Mamontov
Keyword(s):  
Heating Systems ◽  
Hot Air ◽  
Air Heating

scholarly journals PERFORMANCE EVOLUTION OF AN IMPROVED SOLAR THERMAL HOT AIR HEATING SYSTEM FOR DRYING GROUND-NUTS

2019 ◽  
Vol 42 (3) ◽  
pp. 01-05
Author(s):  
Agarwal A. ◽  
Seretse O.M ◽  
Letsatsi M.T ◽  
Maele L.T ◽  
Koketso D
Keyword(s):  
Heating System ◽  
Solar Thermal ◽  
Hot Air ◽  
Air Heating

Comparative study of solar hot air heating systems with phase change materials in plateau areas

2020 ◽  
Vol 224 ◽  
pp. 110265
Author(s):  
Rui Fan ◽  
Yue Li ◽  
Ting Bu ◽  
Kexin Sun ◽  
Yibing Zhou ◽  
...  
Keyword(s):  
Comparative Study ◽  
Phase Change ◽  
Phase Change Materials ◽  
Heating Systems ◽  
Hot Air ◽  
Air Heating

scholarly journals Study on Thermal Comfort in Industrial Buildings, Heated by Radiation

2021 ◽  
Vol 1203 (2) ◽  
pp. 022089
Author(s):  
Alexandru Filipovici ◽  
Sanda Mirela Ţoropoc ◽  
Marius Adam ◽  
Daniela Rusen ◽  
Danut Tokar ◽  
...  
Keyword(s):  
Optimal Solution ◽  
Heating System ◽  
High Energy ◽  
Point Of View ◽  
Indoor Climate ◽  
Technical Literature ◽  
Heating Systems ◽  
Industrial Buildings ◽  
Very High Energy ◽  
Economical System

Abstract This paper is focused on a study between different heating systems commonly used in industrial installations. Industrial heating systems generally raise difficult problems in choosing the most economical system. If several solutions technically meet the requirements of the indoor climate, in terms of energy efficiency we must focus on the optimal solution. The study was conducted to choose the optimal heating solution for an industrial hall, from the point of view of evaluating the efficiency of the installation of an exhaust gas recirculation equipment. The heating of industrial premises generally raises difficult problems due to the diversity of the types of buildings encountered, the variety of activities carried out and the need to choose the most economical system, both in terms of investment and operation. The radiation heating system using natural gas offers the solution of this problem, in situations where the classic heating systems (hot air heating or static bodies) cannot ensure optimal indoor conditions (in the sense that they do not achieve a relatively uniform temperature in the heated space, cause drafts and have low yields). For spaces with a high height (over 4m) these systems can only be considered satisfactory in the case of general heating with very high energy consumption. From the study performed, but also from the specialized technical literature, it is concluded that these systems offer an energy saving, compared to the classical systems.

scholarly journals Prospective increase in the heat pump’s efficiency through arrangement in a three-temperature system

2019 ◽  
Vol 11 (10) ◽  
pp. 168781401988098
Author(s):  
Tomáš Stejskal ◽  
Jozef Svetlík ◽  
Peter Demeč ◽  
Adam Žilinský ◽  
Juraj Kováč
Keyword(s):  
Heat Pump ◽  
Heat Engine ◽  
Heating System ◽  
Stirling Engine ◽  
Thermal Source ◽  
Heating Systems ◽  
Economic Issues ◽  
Advantages And Disadvantages ◽  
System A ◽  
Temperature Heating

Analysis of three-temperature heating system has revealed the apparent advantages and disadvantages that the combination of thermodynamic systems has in future development with respect to environmental and economic issues. Three-temperature heating systems consist of a heat engine and a heat pump, thus enabling maximum use of the primary thermal source for heating buildings. It seems that the combination of a Stirling engine, or a similar heat drive, with a heat pump is suitable. In order to analyse the effectiveness of such a system, a comprehensive calculation procedure is used as follows: its basis lies in accounting for all types of energy and their relationship to the original natural resource. The present study aims to point out that the combination of a Stirling engine and a heat pump is a useful solution due to the fact that it has the most favourable resultant economic impact in comparison to the use of a diesel, four-stroke gas or the most commonly used electric drive.

The Conservation of Artworks and Hot Air Heating Systems in Churches: Are They Compatible? The Case of Rocca Pietore, Italian Alps

1999 ◽  
Vol 44 (3) ◽  
pp. 209 ◽  
Author(s):  
Dario Camuffo ◽  
Giovanni Sturaro ◽  
Antonio Valentino ◽  
Marco Camuffo
Keyword(s):  
Italian Alps ◽  
Heating Systems ◽  
Hot Air ◽  
Air Heating

The conservation of artworks and hot air heating systems in churches: are they compatible? the case of rocca pietore, italian alps

1999 ◽  
Vol 44 (3) ◽  
pp. 209-216 ◽  
Author(s):  
Dario Camuffo ◽  
Giovanni Sturaro ◽  
Antonio Valentino ◽  
Marco Camuffo
Keyword(s):  
Italian Alps ◽  
Heating Systems ◽  
Hot Air ◽  
Air Heating

EVALUATION OF AIR HEATING SYSTEMS EFFECTIVENESS IN GREENHOUSES

2014 ◽  
Vol 4 (2) ◽  
pp. 94-98 ◽  
Author(s):  
Vjacheslav Aleksandrovich KUBIS ◽  
Svetlana Viktorovna BAKANOVA ◽  
Alexandr Ivanovich EREMKIN ◽  
Natalia Aleksandrovna ORLOVA
Keyword(s):  
Heat Exchanger ◽  
Air Temperature ◽  
Solid Fuel ◽  
Experimental Studies ◽  
Heating System ◽  
Heating Systems ◽  
Air Heating ◽  
Systems Effectiveness ◽  
Heating Mode

The results of experimental studies of gas-air heat exchanger of solid fuel stove are viewed. Work modes of air heating system in the greenhouse are measured. Work modes of stove and gas-air heat exchanger are analyzed. Dependence between air temperature from heat exchanger and heating mode is established.

Sign in / Sign up

Export Citation Format

Share Document