Adequacy of air-to-air heat recovery ventilation system applied in low energy buildings

Fouih, Younness El; Stabat, Pascal; Rivière, Philippe; Hoang, Phuong H.; Archambault, Valérie

doi:10.1016/j.enbuild.2012.08.008

Cited by 102 publications

(49 citation statements)

References 12 publications

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“…Since then, the technological functionality of energy savings in buildings has been widely studied (e.g., [11][12][13]) and earlier studies on the general barriers and drivers in energy-efficient construction and green building have found that other elements than the technology itself affect the innovation processes. Regulation, the conservative nature of building industry and rising energy prices have been identified as common factors affecting these innovation processes [14,15].…”

Section: Introductionmentioning

confidence: 99%

How to Succeed in Low-Energy Housing—Path Creation Analysis of Low-Energy Innovation Projects

2015

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Abstract:The low-energy and the nearly zero-energy buildings trend is calling for radical new innovations from the construction industry. This study uses path creation theory to examine two innovation concepts for low-energy housing in Northern Europe with contrasting outcomes-with one being an apparent market success and the other a disappointment. The results highlight two issues behind the success, one of a systemic nature and the other concerning innovation management. First, the development of energy efficiency regulations and the dominant technological trajectory regarding low-energy houses are interdependent. However, it seems that while supporting the trajectory of the innovation developed in the first case, regulators created virtually insurmountable cognitive and normative obstacles to finding alternative technological pathways. Second, the significance of proof of concepts for new innovations cannot be underestimated. The importance of a pilot project rests not only on showcasing and testing the technology, but also on its ability to increase political support, investments, and public awareness. The study implies that low-energy construction seems to be the next great challenge, one where genuine co-operation between the industry, public authorities and academia is a prerequisite for success.

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Section: Introductionmentioning

confidence: 99%

How to Succeed in Low-Energy Housing—Path Creation Analysis of Low-Energy Innovation Projects

2015

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“…It should be noticed that the proposed system in this study is not mentioned in the review showing its innovative side. In addition, many studies focus on the efficiency of ventilation systems with heat recovery compared to standard ventilation systems [3,4]. Generally speaking and for the moderate climate region of middle Europe which is discussed in this study, it is shown that the use of heat recovery on air ventilation is not always competitive when operating costs are taken into account.…”

Section: Introductionmentioning

confidence: 99%

“…It is worth mentioning that owing to the fluids properties considered in this study [8], in any case C 2 > C 1 , C 2 > C 3 and C 1 > C 3 . It results that the maximum possible heat transfer rate  max is given by:…”

Section: Effectiveness Relationmentioning

confidence: 99%

Ventilation Heat Recovery from Wood-Burning Domestic Flues. A Theoretical Analysis Based on a Triple Concentric Tube Heat Exchanger

Peigné¹,

Inard

Druette³

2013

Energies

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This paper presents a new air-heating system concept for energy-efficient dwellings. It is a system designed to heat a low-energy building by coupling a heat-recovery ventilation system with a three-fluid heat exchanger located on the chimney of a wood-pellet stove. The proposed work focuses on the heat transfer that occurs between flue gases, the ventilation air and the combustion air within a triple concentric tube heat exchanger with no insulation at its outer surface. The main objective is to predict outlet temperature for the specific geometry of the heat exchanger studied here. Thus, the governing differential equations are derived for a counter-co-current flow arrangement of the three fluids. Then analytical solutions for the steady-state temperature distribution are obtained as well as the amount of heat transferred to the outside. An expression for the effectiveness of the heat exchanger is also proposed. Based on these results, calculations are performed on a case study to predict the fluid temperature distribution along the heat exchanger. Finally, a parametric study is carried out on this case study to assess the influence of the relevant parameters on the effectiveness of the heat exchanger. In addition, computation of heat losses to the outside justifies whether insulation is needed.

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“…Heat recovery ventilation (HRV) principle is to recover heat from the exhaust air and to transfer it to the supply air through a heat exchanger. With the growing share of ventilation heating loads, heat recovery over the mechanical ventilation systems appears as one of the key solutions to reduce heat losses and generate consequent energy savings [8]. With rapid economic growth, the need for better indoor built environment has become more pronounced.…”

Section: Introductionmentioning

confidence: 99%

Energy performance of a ventilation system for an apartment according to the Italian regulation

Valdiserri

Biserni

Garai

2015

Int J Energy Environ Eng

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According to recent regulations on energy saving in buildings, all new structures should guarantee high-energy performance. To this aim, the building envelope should be equipped with insulated walls and high-efficiency windows. This approach leads to considerable thermal insulation, but at the same time, in the absence of a suitable ventilation system, it results in a worsening of indoor air quality. A healthy quality of life requires good indoor air quality; especially in places where people spend most of their time, adequate air exchanges should be guaranteed and indoor pollution reduced to ''acceptable'' levels. In the present work, we performed a dynamic simulation of a ventilation system for an apartment using a mathematical model, i.e., the Trnsys commercial code. The model has been applied to an apartment of 66 m 2 inside a condominium located in Bologna (Italy), but can also be used for other types of buildings as well. The variation of energy request due to different measurements of volume flow rate was evaluated.

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Adequacy of air-to-air heat recovery ventilation system applied in low energy buildings

Cited by 102 publications

References 12 publications

How to Succeed in Low-Energy Housing—Path Creation Analysis of Low-Energy Innovation Projects

How to Succeed in Low-Energy Housing—Path Creation Analysis of Low-Energy Innovation Projects

Ventilation Heat Recovery from Wood-Burning Domestic Flues. A Theoretical Analysis Based on a Triple Concentric Tube Heat Exchanger

Energy performance of a ventilation system for an apartment according to the Italian regulation

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