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Investigating the energy and thermal implications of installation of an air curtain and an automatic door in convenience stores in Wales

Hou, Shan, Patterson, Joanne, Li, Xiaojun, Perisoglou, Emmanouil and Jones, Phillip 2019. Investigating the energy and thermal implications of installation of an air curtain and an automatic door in convenience stores in Wales. Presented at: 16th IBPSA International Conference, Rome, 2-4 September 2019. -.

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Abstract

A convenience store is a common building type in Wales, which has potential to achieve carbon emissions reduction through practical retrofit strategies. However, there is a lack of studies conducted to address the low carbon retrofit for these convenience stores. Easy access into a convenience store is essential, however an open entrance will allow uncontrolled external air entering the internal space. During heating seasons, this results in difficult to heat spaces due to cold external air freely penetrating and leaving the heating premises. A significant amount of energy is wasted to heat up a large volume of cold air that enters through an open entrance and escapes from it soon after. In addition, the penetrating external air can cause cold draft and lead to discomfort for the space users, including store staff and customers. This paper presents a modelling-led approach to investigate the energy and thermal performance of two practical strategies to reduce heat losses through an open entrance in a typical convenience store in Wales. The two strategies explored are the installation of an air curtain over an open entrance and the replacement of an open entrance with an automatic door. Integrated building and air flow simulations which link air infiltration and ventilation estimation with building energy and thermal simulation will be applied to examine the energy and thermal implication of the two strategies. HTB2 which is a dynamic building energy and thermal package, and Winair which is an air flow package; will be used in this study. This research will identify the energy and thermal implications of installation of an air curtain and an automatic door in the typical convenience store. Monthly and annual energy consumption, and room temperature for three cases will be predicted by a series of integrated building and air flow simulations. The benefits that an air curtain and an automatic door can provide will be evaluated and compared, in relation to energy consumption, as well as the improvement of the thermal environment. In addition, the associated capital and operational cost of the two approaches will be discussed.

Item Type: Conference or Workshop Item (Paper)
Status: In Press
Schools: Architecture
Date of First Compliant Deposit: 27 September 2019
Date of Acceptance: 30 June 2019
Last Modified: 10 Oct 2019 03:44
URI: http://orca.cf.ac.uk/id/eprint/125688

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