Thermal performance of a nearly zero energy passive house integrated with the air–air heat exchanger and the earth–water heat exchanger

Chel, Arvind; Janssens, Arnold; Paepe, Michel De

doi:10.1016/j.enbuild.2015.02.058

Cited by 40 publications

(15 citation statements)

References 19 publications

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“…In order to reduce building energy at the national level, general action plans in the building market for passive house implementation have been devised. The aims of these action plans are as follows: (1) to strengthen the performance of the building envelope [11][12][13][14][15], (2) to apply energy-efficient HVAC systems [16][17][18][19][20], and (3) to apply renewable energy systems [21][22][23][24]. With the efforts and policies for building energy saving at the national level and active global discussions on energy issues, the interest by builders and investors in the passive house has also increased in the building market.…”

Section: Introductionmentioning

confidence: 99%

The Economic Feasibility of Passive Houses in Korea

2018

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The number of passive houses and zero-energy buildings being developed is increasing, as measures to reduce the rapidly increasing building energy consumption. While government building policies focus on energy savings, investors and the building market emphasize the initial investment cost. These conflicting perspectives obstruct the development of passive houses in the building market. In this study, a series of building energy analyses, including the effect of energy saving measures and economic information considering long-term economic benefit and incentives policy, will be presented. Analyses were performed on the energy-saving measures needed to improve the performance of single-family houses in Korea to that of the passive house standard, as well as the energy saving effect and increased cost. The application of energy saving measures for passive house implementation resulted in an additional cost of 1.85%–4.20% compared to the conventional reference house. In addition, the proposed passive house alternative shows a short payback period and life cycle cost (LCC) result, compared to a conventional building’s life cycle period. The possibility of passive house implementation is high, and developing the passive house is affordable for the investor or end user in Korea.

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Section: Introductionmentioning

confidence: 99%

The Economic Feasibility of Passive Houses in Korea

2018

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“…It was found that the buried depth, pipe length and mass flow rate are important parameters for evaluating the performance of EAHE. Chel et al [30] evaluated the dynamic thermal performance if building integrated with water heat exchanger (WAHE) and EAHE by using transient system simulation (TRNSYS). Their results show that WAHE and EAHE had a reduction of the annual heating consumption of 66% and 7% respectively.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation on the transient behavior of an earth air heat exchanger in continuous operation mode

Belloufi¹,

Brima²,

Zerouali³

et al. 2017

IJHT

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The main objective of the present study is to investigate the thermal performances of an earth air heat exchanger (EAHE) under transient conditions in cooling mode. This work was performed experimentally in the University of Biskra, Algeria. For that, a PVC pipe of 53.16 m long and 110 mm diameter buried at 3 m depth is used. Tests of the experimental setup were carried out in continuous operation mode for 71 hours with high inlet temperatures. Besides, a mathematical model was presented for EAHE by using the finite differences method applying the energy balance equations with forced convection. In addition of the horizontal portion on soil surface, the two vertical portions of 3m each one connected to the horizontal portion were considered in the modeling in order to present a fairly complete study of the EAHE. It was found that the continuous operation mode have no remarkable effect on the outlet air temperature and thus on the EAHE performances during all 71 hours. Results of the theoretical predictions were validated with the measured air temperatures along the EAHE and showed satisfactory qualitative and quantitative agreement.

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“…In tropical areas, the soil temperature below a certain depth is almost constant over the year (Bansal et al [15]). Chel et al [17] suggested that the soil can be used as a thermal sink for the cooling of PV panels. Various studies adopted the GHEX concept as earth-water heat exchangers and earth-air heat exchangers for air conditioning purpose, where water and air are the cooling media, respectively [14,16,18,19].…”

Section: Introductionmentioning

confidence: 99%

Analysis of solar photovoltaic panel integrated with ground heat exchanger for thermal mana gement

Al-Kayiem¹,

Reda²

2021

Int. J. EQ

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In spite of high solar radiation being an advantage for the performance of solar photovoltaic (PV) panels, the caused high surface temperature of the panel surface reduces their efficiency, as well as lifetime span due to cyclic thermal stresses. PV panels are deteriorating due to two setbacks from a harsh climate: shallow temperatures during the night leading to condensation and overheating during the day leading to reduced efficiency. The present paper discusses and resolves the two setbacks in the PV performance by cooling the panel during the day and heating the panel during the night using water circulation in a ground embedded heat exchanger. Experimental and numerical methods were used to carry out the investigation on the influence of the proposed technique on the PV performance. Following the experiments, a computational model has been developed to simulate the experimental set-up. Two PV modules have been tested simultaneously in outdoor environment; one is bare and the second is integrated with ground heat exchanger. Results revealed that the integrated heat exchanger has managed to reduce the PV surface temperature by around 8 o C during the daytime and rise the PV surface temperature by around 3 o C more than the due temperature, at which condensation takes place during the night time. The developed technique has proved to be highly efficient as a PV thermal control method.

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Thermal performance of a nearly zero energy passive house integrated with the air–air heat exchanger and the earth–water heat exchanger

Cited by 40 publications

References 19 publications

The Economic Feasibility of Passive Houses in Korea

The Economic Feasibility of Passive Houses in Korea

Numerical and experimental investigation on the transient behavior of an earth air heat exchanger in continuous operation mode

Analysis of solar photovoltaic panel integrated with ground heat exchanger for thermal mana gement

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