Numerical estimation and sensitivity analysis of the energy demand for six industrial buildings in France

Abstract

When it comes to dealing with energy savings in buildings, studies almost systematically focus on the residential and tertiary building stocks while the industrial building stock is ignored. This study comes as a first step to move forward on this topic and its objectives are threefold: first to develop a simple methodology suitable for various industrial activities, then to analyse the distribution of the energy demand by use for 6 different cases and, finally, to carry out a sensitivity analysis. A first observation was that the energy demands for HVAC and lighting systems and the heat loads were of the same order of magnitude. The energy demand for heating and cooling was normally distributed, and the uncertainty on the results lay between ±20% and ±40% for most cases. The influence of 6 weather conditions was estimated for all of the 6 buildings and found to be significant, yet not uniformly.

Uncertainty and sensitivity analyses applied to a dynamic simulation of the carbon dioxide concentration in a detached house

“…Although uncertainty and sensitivity analyses have been conducted by many authors on building energy performances [2][3][4][5][6][7][8][9][10][11], few publications discuss the effect of input parameter uncertainties on residential building indoor air quality. Laverge et al [12] compared different mechanical exhaust ventilation systems in accordance with five standards on five different dwelling typologies.…”

Energy Savings on an Industrial Building in Different Climate Zones: Envelope Analysis and PV System Implementation

“…Another comprehensive study is the one carried out in France by Labat and Attonaty [14], they found that the energy requirements from heating, ventilation, and air conditioning (HVAC), and lighting systems are of a similar order of magnitude. The analysis was made for six buildings of different uses: warehouses (2), two manufacture buildings (2), food industry (1), and a cattle facility (1).…”

“…After the annual cost from the consumption of both fuels in the buildings is calculated, the annual increment of the prices is also added. The present worth (PW) is estimated with Equation (14) to determine the total cost of the air conditioning systems operation and evaluate its financial feasibility [56].…”

“…In the literature, numerous analyses and projects have been mainly carried out for residential, educational, and office buildings. In the consulted literature, it was found that many envelope studies are related directly to energy savings in tertiary and residential buildings [14]; therefore, profound analysis for industrial buildings is still needed. A large number of studies are carried out for hot and warm climates [15].…”

“…A large number of studies are carried out for hot and warm climates [15]. Valuable studies like the case studies in Austria for refurbishment [16], in Slovakia for a quantification of the energy demand [17], and a nearly zero-energy buildings study for the steel sector in Germany [18]; point out the following: most of the reviewed literature consists on case studies and generalizations are still required [14], and that for cold climates, an increase of insulation thickness is not cost-effective [18]. In regards to the incorporation of the photovoltaic (PV) systems, Kapsalis and Karamanis [19] state that a detailed heat transfer is required for seasonal studies.…”