scholarly journals In Situ Assessment of HVAC System Impact in Façades of a UNESCO World Heritage Religious Building

2021 ◽  
pp. 146-168 ◽  
Author(s):  
Kelsey Williamson ◽  
Antonio Martinez-Molina ◽  
William Dupont
Keyword(s):  
Environmental Quality ◽  
World Heritage ◽  
Indoor Environmental Quality ◽  
Hvac System ◽  
Unesco World Heritage ◽  
In Situ Assessment ◽  
System Impact

El manteniment dels ambients interiors òptims dels edificis històrics per a la integritat estructural i la preservació de les col·leccions, són objectius inherentment complexos i multifacètics. A més, els ambients interiors no sols afecten les col·leccions i a l’edifici, sinó que també cal tindre en compte la satisfacció dels ocupants. Aquesta investigació avalua l’impacte dels problemes tèrmics i d’humitat causats per una unitat de condensació de HVAC en una paret de 265 anys d’antiguitat en un lloc del Patrimoni Mundial de la UNESCO en el clima càlid i humit de Sant Antoni, Texas (els EUA). Es va dur a terme una investigació de camp sobre la Indoor Environmental Quality (IEQ) centrada especialment en l’impacte de la HVAC en un mur pròxim. El cas d’estudi és un assentament històric únic que inclou una església de pedra calcària que reflecteix una tipologia similar a la de múltiples edificis religiosos distribuïts pel sud-oest dels Estats Units. Els resultats d’aquest article subratllen, entre altres qüestions, l’impacte negatiu d’una mala integració dels sistemes actius en les estructures històriques, i destaquen la necessitat de continuar investigant en aquest tema.

A novel real-time method for HVAC system operation to improve indoor environmental quality in meeting rooms

2018 ◽  
Vol 144 ◽  
pp. 365-385 ◽  
Author(s):  
Wenzhuo Li ◽  
Choongwan Koo ◽  
Seung Hyun Cha ◽  
Taehoon Hong ◽  
Jeongyoon Oh
Keyword(s):  
Real Time ◽  
Environmental Quality ◽  
Indoor Environmental Quality ◽  
Hvac System ◽  
System Operation

scholarly journals Indoor Environmental Quality Analysis for Optimizing Energy Consumptions Varying Air Ventilation Rates

2020 ◽  
Vol 12 (2) ◽  
pp. 482 ◽  
Author(s):  
Francesco Mancini ◽  
Fabio Nardecchia ◽  
Daniele Groppi ◽  
Francesco Ruperto ◽  
Carlo Romeo
Keyword(s):  
Environmental Quality ◽  
Energy Savings ◽  
Building Envelope ◽  
In Situ Monitoring ◽  
Quality Analysis ◽  
Airflow Rate ◽  
Indoor Environmental Quality ◽  
Hvac System ◽  
Energy Consumptions

The energy refurbishment of the existing building heritage is one of the pillars of Italian energy policy. Aiming for energy efficiency and energy saving in end uses, there are wide and diversified improvement strategies, which include interventions on the building envelope and Heating, Ventilation, and Air Conditioning (HVAC) systems, with the introduction of renewable energy sources. The research aims at evaluating the building energy consumptions and Indoor Environmental Quality (IEQ), varying the airflow rates handled by the HVAC system. A Case Study (the Aula Magna of a university building) is analysed; an in-situ monitoring campaign was carried out to evaluate the trend of some environmental parameters that are considered to be significant when varying the external airflow rates handled by the HVAC system. Additionally, dynamic simulations were carried out, with the aim of evaluating the energy savings coming from the airflow rates reduction. The results of this case study highlight the opportunity to achieve significant energy savings, with only slight variations in IEQ; a 50% reduction in airflow rate would decrease energy consumption by up to 45.2%, while increasing the carbon dioxide concentration from 545 ppm to 655 ppm, while the Particulate Matter and Total Volatile Organic Compounds increase is insignificant.

In Situ Evaluation of Vanguard Technologies for High Performance Residential Buildings

2013 ◽  
Author(s):  
David J. Sailor ◽  
Santiago Rodriguez ◽  
Jeff Lauck
Keyword(s):  
Environmental Quality ◽  
High Performance ◽  
Residential Buildings ◽  
Indoor Environmental Quality ◽  
Water Heater ◽  
Passive House ◽  
Heat Pump Water Heater ◽  
High Performance Buildings ◽  
House Design

High performance buildings demand innovative and often untested strategies for improving thermal performance and reducing energy consumption while maintaining indoor environmental quality. The Passive House design standard is increasingly being implemented in residential and small commercial construction. This standard results in buildings with airtight envelopes, high levels of insulation, very high performance windows, and energy efficient appliances. The intent of this paper is to evaluate the performance of several cutting-edge high performance building technologies as implemented in a Passive House duplex constructed in Portland, Oregon, USA. We provide an overview of the performance of the entire structure from multiple viewpoints, but focus largely on the performance of the heat recovery ventilator and heat pump water heater. Interactions of these systems with occupant behavior and indoor environmental quality are also discussed.

scholarly journals Integrated Lighting Efficiency Analysis in Large Industrial Buildings to Enhance Indoor Environmental Quality

2017 ◽  
Author(s):  
Dušan Katunský ◽  
Erika Dolníková ◽  
Saeed Doroudiani
Keyword(s):  
Computational Methods ◽  
Environmental Quality ◽  
Efficiency Analysis ◽  
Office Buildings ◽  
Physical Parameters ◽  
Indoor Environmental Quality ◽  
Industrial Buildings ◽  
Indoor Lighting

We present observations from evaluation of internal environmental quality of industrial halls with priority on daylighting in combination with the integral lighting. The physical parameters related to indoor lighting in large industrial halls in winter and summer periods were analyzed using in situ measurements and computational methods. These are part of a comprehensive research on indoor environmental quality of industrial halls with the aims of saving energy and providing a comfortable environment for the workers while improving the productivity. The results showed that the procedures used for evaluation of residential or office buildings may not be used for industrial buildings. We also observed that the criteria of occupants’ comforts for indoor industrial buildings may differ from those of other kinds of buildings. Based on these results, an adequate attention is required for designing the industrial buildings. For this reason, appropriate evaluation methods and criteria should be created. We found the measured values of daylight factor very close to the skylight component of the total illumination. The skylight component was observed on average 30% that of the measured daylight factor values. Although the daylight is not emphasized when designing the industrial buildings and its contribution is small, but it is very important for the workers psychology and physiology. The workers must feel a connection with the exterior environment; otherwise, their productivity decreases.

UNESCO World Heritage and Kosovo Towards a Tentative List for Kosovo

2016 ◽  
Vol 5 (1) ◽  
pp. 1-10
Author(s):  
Caroline Jaeger Klein
Keyword(s):  
World Heritage ◽  
Architectural Heritage ◽  
Unesco World Heritage ◽  
Serbia And Montenegro

In 2015, Kosovo tried to join UNESCO and failed by three quotes. Is Kosovo ready for its UNESCO membership? At least for its national architectural heritage, this question is to answer with no. The intensively discussed issue of the medieval monuments of Kosovo inscribed as UNESCO World Heritage by Serbia and Montenegro before the declaration of independency in 2008 and their further management through Kosovo is just one aspect. More troubling is that the rather young state not yet could establish sufficient structures to gain a systematic inventory of its monuments, sites and historic ensembles, nor to extract a tentative list for UNESCO out of such an encompassing inventory. This article intends to clarify the definitions of World Heritage, the institutions and NGO’s involved, the mechanisms and philosophies behind. What is the urgent homework for Kosovo? Which national and international groups of experts Kosovo has to name and make responsible for the systemic inventory of its architectural heritage and for creating a tentative list? What is the role and importance of ICOMOS in that process? Which other stakeholders have to be Identified and educated towards that issue?</p><p>Based on such general considerations the author tries to design finally a preliminary tentative list for the architectural heritage of Kosovo. Hence, not the list itself is of importance but the discussion of the pro and contra arguments for single candidates.

130. Indoor Environmental Quality in Six Commercial Office Buildings in the Midwest United States

1999 ◽  
Author(s):  
S. Reynolds ◽  
P. Subramanian ◽  
G. Breuer ◽  
M. Stein ◽  
D. Black ◽  
...  
Keyword(s):  
United States ◽  
Environmental Quality ◽  
Office Buildings ◽  
Indoor Environmental Quality ◽  
Midwest United States
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