Energy conservation measures on residential buildings in Saudi Arabia (original) (raw)

Impact of the new Saudi energy conservation code on Saudi Arabia residential buildings

Australian Journal of Mechanical Engineering, 2020

Air conditioning systems are the most viable source to avoid heat waves. Unfortunately, this puts a massive burden on the total electrical load. To deal with this critical issue, the Saudi Building Code National Committee has initiated the Saudi energy conservation code (SBC-602). This paper investigated the role of SBC-602 on the reduction of energy consumption in residential buildings. Furthermore, it also proposes the most effective building element to be insulated. A case study of energy consumption was modelled using SketchUp and analysed using OpenStudio Software. Inconsequence, three scenarios of U-values as an input in this work were suggested which are; building without thermal insulation, building with thermal insulation using Saudi electricity company (SEC) requirement, and using SBC-602 requirement. The study was conducted in three different cities Riyadh, Hail, and Abha, representing three climate zones in Saudi Arabia. Design of experiment (DOE) method was utilised to analyse the significant effects of the input factors. The result indicates that the decrease of the walls U-value is the most effective way to reduce the total electrical energy consumption. Moreover, decreasing roof U-value and increasing setpoint temperature were the following effective factor.

Residential Buildings Thermal Performance to Comply With the Energy Conservation Code of Saudi Arabia

Engineering, Technology & Applied Science Research, 2019

About half of the total generated electricity in Saudi Arabia (SA) is consumed for the air conditioning of residential buildings. To reduce this burden on the economy as outlined by the country's 2030 vision, the implementation of the Saudi energy conservation code (SBC602) needs to be enforced. This code divided KSA into three climate zones with maximum overall heat transfer coefficients. This study aims to facilitate the use of thermal insulation by analyzing optimum thermal insulation thickness for each zone and calculate the payback period of initial insulation costs. Three cities were selected to represent the three climate zones, Riyadh, Arar, and Turaif. The code-compliant thermal insulation thickness is calculated using these variables: thermal properties of three insulation materials, overall heat transfer coefficients, and three insulated wall structures. It is concluded that external insulation and finish system utilizing polyurethane is the most feasible option with ...

Impact of Location and Insulation Material on Energy Performance of Residential Buildings as per Saudi Building Code (SBC) 601/602 in Saudi Arabia

Materials

In hot and humid climates, a significant part of the energy is used to cool the building. There are several ways to reduce this air conditioning load, but one standout is through the selection and design of the right building envelope and its components. The thermal characteristics of the building envelope, in particular the thermal resistance of the insulation used, have an impact on the thermal and energy performance of building structures. Thermal conductivity, which indicates the ability of heat to move through a material given a temperature difference, is the primary factor affecting the performance of a thermal insulation material. Both temperature and humidity changes can affect a material’s thermal conductivity value, which can then change. In fact, due to the fluctuating ambient air temperature and solar radiation, thermal insulation in buildings is susceptible to significant and continuous temperature variations. Thermal insulation used in building walls and roofs helps to...

Energy consumption comparison at various insulation scenarios: Mid-rise residential buildings, Kabul city

E3S Web of Conferences

An insulating substance is typically used to reduce the amount of heat that enters buildings with air conditioning from the outside. The heat conductivity of this substance is extremely low. In this scenario, having a cost-effective air conditioning system requires using an appropriate insulation material with the right thickness. Up until a certain point, when the material thickness is optimal and will give the maximum overall energy savings, given that the building industry accounts for roughly 40% of worldwide energy consumption and is the greatest producer of greenhouse gas emissions, it is well known that it has a substantial negative influence on the environment too. Therefore, Insulating the outer walls of the building is a recognized method to improve the energy efficiency of buildings in the current setting of ongoing global energy price increases and concern to support global efforts to recover the climate. This study was conducted on a residential building in Kabul city c...

An Optimum Thermal Insulation Type and Thickness for Residential Buildings in Three Different Climatic Regions of Saudi Arabia

Civil Engineering and Architecture, 2021

Efficient thermal insulation in the harsh desert climate of Saudi Arabia, where the cooling requirement of buildings is dominant, is very important from the aspect of energy efficiency. Through its eco-friendly properties, thermal insulation is one of the most efficient strategies for reducing energy use while providing the desired thermal comfort. In this study, the impact of thermal insulation type and thickness on reducing the annual energy consumption was evaluated for a sample prototype building located in three Saudi cities. DesignBuilder energy simulation tool has been used for more investigation such as the insulation cost benefits using the life-cycle cost model to knowing when to stop adding insulation. Results showed that applying thermal insulation to the walls and roof leads to a significant reduction in the total costs for all four insulation types. The results show that energy cost savings vary from 5.6 /m2to9.7/m 2 to 9.7 /m2to9.7/m 2 depending on the city climatic condition. On the other hand, the highest payback period value with 8.8 years in Khamis Mushait (Moderate climate), while the lowest value reached 4.7 years in Gazan (Hot-humid climate).

Energy efficient strategies for the building envelope of residential tall buildings in Saudi Arabia

2018

The energy demand in the oil- dependent Gulf countries in general and in Saudi Arabia in particular has been increasing sharply in the last decades as a result of the diversification plans. Tall building construction, associated with many environmental and ecological challenges, played an essential role in these plans, as a mean to attract new economies based on global placemaking and international tourism. The significant use of air conditioning to cool indoor spaces, particularly in residential buildings, accounts for more than half of all energy consumption in the country, and despite governmental efforts, the scattered conservation efforts have been largely ineffective due to factors such as lack of awareness and information, in addition to the limitation of the local energy efficiency building regulations. This research aimed to find and prioritise building envelope design solutions that can reduce high energy consumption and cooling loads while maintaining indoor environment f...

Cost Benefit Analysis of Applying Thermal Insulation Alternatives to Saudi Residential Buildings

JES. Journal of Engineering Sciences, 2021

Given the rapidly increasing number of air-conditioned buildings, the electricity demand in the Kingdom of Saudi Arabia has increased during the past decade. Efficient thermal insulation is extremely important for energy efficiency and sustainability, especially with the country's hot-arid climate. This study explores the law of diminishing returns when improving the conservation level of residential buildings by using case study simulation. Specifically, this study aims to identify alternative positions for the insulation material and the optimum thickness for the three proposed strategies (on the roof only, on the walls only and on the roof and walls) in accordance with the energy efficiency index defined in the thermal insulation regulation of the KSA. Moreover, this study uses the life cycle cost model to manage the optimum number of insulation levels. This study also uses DesignBuilder energy simulation tool to estimate the energy performance and the environmental impact of a sample prototype villa with a gross area of 238 m 2 in Najran City. The optimum insulation thickness is defined based on the cost benefits of the extruded polystyrene material (XPS) over its lifetime. Results show that the optimum insulation thicknesses of 8, 4 and 6 cm must be applied on the roof only, the walls only and the roof and walls. These

Energy saving potential for residential buildings in hot climates: The case of Oman

Sustainable Cities and Society, 2019

 Energy consumption of the residential sector in Oman was examined and forecasted.  A validated simulated model of a typical Omani house was compared to an energy-efficient one in the three climatic zones of Oman using four GCC energy codes.  Saving ranged between 13.2% to 48.2%, with UAE Estidama and Saudi Building Code achieved better saving depend on the climatic zone.  Economic analysis show that these building codes are not always leading to economical solutions in some climates.

Wall insulation measures for residential villas in Dubai: A case study in energy efficiency

Lancet

Over the past decade Dubai's energy demand has increased in sync with the rapid urban development and population growth of the UAE. In particular the residential villa stock has grown by more than 300% from 20,000 villas in 2000 to over 60,000 villas in 2009. In order to limit energy consumption, the local authorities introduced building legislation (2001 and 2003) that prescribes minimum insulation levels for external walls and roofs. The resulting constructive solutions focus on the use of a mid-plane insulated prefabricated block to attain the prescribed maximum wall U value (0.57 W/m 2 K), however the reinforced concrete frame typically remains non-insulated, and thus introduces significant thermal bridges in the building envelope. This work investigates the impact of this thermal bridging effect on the building's energy consumption by modeling (hourly simulation using DesignBuilder/EnergyPlus) the energetic performance of a series of typically applied insulation strategies, both for buildings in the initial design stage, and in retrofit mode. The simulation model is calibrated against collected consumption data and experimental infiltration measurements of the actual building. Simulation results show that with appropriate external wall insulation strategies alone, energy savings of up to 30% are realized.