References of "Mahar, Waqas Ahmed"
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See detailIndoor thermal comfort in residential building stock: A study of RCC houses in Quetta, Pakistan
Mahar, Waqas Ahmed ULiege; Attia, Shady ULiege

Report (2018)

The report is a part of the PhD project entitled “Methodology for the design of climate responsive houses for optimised thermal comfort in Quetta, Pakistan” being carried out at University of Liège ... [more ▼]

The report is a part of the PhD project entitled “Methodology for the design of climate responsive houses for optimised thermal comfort in Quetta, Pakistan” being carried out at University of Liège, Belgium. The aim of the project is to improve indoor thermal comfort of free-running houses in Quetta and raise the awareness of builders about climate sensitivity. The present findings are based on the monitoring of indoor climate, survey questionnaire and the interviews of the residents living in the houses made of reinforced cement concrete (RCC) structure. We aim to provide the readers with insights and perspectives on the existing houses, their comfort performance, comfort perception and understanding of the residents and the use of mechanical methods to optimise thermal comfort in RCC houses in Quetta, Pakistan. [less ▲]

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See detailMethodology for the design of climate responsive houses for optimized thermal comfort in Quetta, Pakistan
Mahar, Waqas Ahmed ULiege; Attia, Shady ULiege

Poster (2018, December 07)

A building must be energy-efficient and provide comfortable indoor environment to the residents. The Building Energy Code of Pakistan (BECP) only focuses on commercial buildings. In today’s scenario a ... [more ▼]

A building must be energy-efficient and provide comfortable indoor environment to the residents. The Building Energy Code of Pakistan (BECP) only focuses on commercial buildings. In today’s scenario a standard must include the context and climate considerations. The aim of this study is to improve indoor thermal comfort of free-running houses in Quetta, Pakistan and raise the awareness of builders about climate sensitivity. [less ▲]

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See detailBuilding energy efficiency policies and practices in Pakistan: A literature review
Mahar, Waqas Ahmed ULiege; Anwar, Naveed Ur Rehman; Attia, Shady ULiege

in Abstract Book (2018, November 15)

The household sector in Pakistan became the largest consumer of electricity which is responsible for more than 51% of the national consumption. The Building Energy Code of Pakistan was developed in 1990 ... [more ▼]

The household sector in Pakistan became the largest consumer of electricity which is responsible for more than 51% of the national consumption. The Building Energy Code of Pakistan was developed in 1990, yet the institutional setup regarding energy efficiency & conservation is inadequate. There is lack of experts and implementation of policies at national and provincial level. The study aims to explore the energy efficiency and conservation policies in Pakistan and their impact on reducing household energy consumption. The issues related to the implementation of policies across the country have been further discussed. The paper provides an overview of the energy sector and its challenges related to residential buildings. Energy policies, standards and literature related to building sector were analysed and discussed with the experts. Moreover, suggestions and recommendations are made for the possible solutions and improvement of the existing situation. [less ▲]

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See detailRenewable energy technologies in Balochistan: Practice, prospects and challenges
Anwar, Naveed Ur Rehman; Mahar, Waqas Ahmed ULiege; Khan, Jalal Faisal

in Mahar, Rasool Bux (Ed.) Proceedings of the 5th International Conference on Energy, Environment and Sustainable Development (EESD) 2018 (2018, November 14)

Global energy demand is increasing with the rapid urbanisation, development, usage of new technologies and expansion of users’ net. Many developing countries are facing energy crisis including Pakistan ... [more ▼]

Global energy demand is increasing with the rapid urbanisation, development, usage of new technologies and expansion of users’ net. Many developing countries are facing energy crisis including Pakistan, where energy infrastructure is old and energy sector is facing challenges of supply, demand and distribution. Considering the situation, renewable energy technologies are used across the country including Balochistan province to solve the energy problem. Renewable energy sources, especially solar and wind energy are getting more popular in the province. This paper provides the overview of existing practices of using RE technologies in Balochistan. Moreover, the paper presents the prospects and challenges regarding RE technologies, institutional setup and organisations involved for the dissemination of knowledge and skills regarding RE. In the end, some suggestions are given for effective planning, improvement and use of RE technologies. [less ▲]

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See detailIndoor Thermal Comfort Assessment of Residential Building Stock in Quetta, Pakistan
Mahar, Waqas Ahmed ULiege; Amer, Mohamed ULiege; Attia, Shady ULiege

in Hartig, Terry (Ed.) European Network for Housing Research (ENHR) Annual Conference 2018 (2018, June 29)

Since last several years Pakistan is facing energy crisis which leads to power-cuts across the country resulting serious disturbance in everyday life. However, residential buildings use more than half of ... [more ▼]

Since last several years Pakistan is facing energy crisis which leads to power-cuts across the country resulting serious disturbance in everyday life. However, residential buildings use more than half of the energy and its demand and usage is continuously increasing. Quetta is the 10th largest city of Pakistan and its urban population is increasing at a high rate. The climate of Quetta is mild to extreme cold in winter and hot in summer which need more heating and cooling for optimal thermal comfort in houses. Energy usage of a household do not only depend on the performance of the building, heating, and cooling systems but also on the life style of the residents. The chosen typology is reinforced cement concrete houses, which is very common and widespread across the country. There is no policy or measures taken at the authority level and most of the houses are not designed by professionals, therefore, the existing houses do not provide optimal indoor thermal comfort. The study consists the monitoring of indoor climate, interviews, and questionnaire. The thermal comfort level was quantified based on the monitored data, and the interviews and questionnaire helped to understand the comfort perception, energy consumption behaviour and life style of the residents. The results show that residential buildings do not provide optimal thermal comfort and residents use active systems to improve indoor thermal comfort which leads to increase in energy usage. [less ▲]

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See detailThermal comfort in residential building stock of Quetta, Pakistan
Mahar, Waqas Ahmed ULiege; Attia, Shady ULiege

Poster (2018, May 30)

Household sector in Pakistan consumes more than half of the energy. Quetta is the capital and the largest city of Balochistan province, Pakistan. The city is facing problems due to increasing population ... [more ▼]

Household sector in Pakistan consumes more than half of the energy. Quetta is the capital and the largest city of Balochistan province, Pakistan. The city is facing problems due to increasing population, and shortage of energy. The existing houses are not providing optimum thermal comfort to the residents and the residents are using mechanical methods for achieving comfort in their houses which increase the usage and the demand of energy. There is strong need to develop and adopt the climate responsive strategies to achieve thermal comfort by using minimum energy and reducing the environmental impact. The aim of this PhD is to develop climate responsive design strategies for the improvement of indoor thermal comfort of free running houses at Quetta by providing cost effective, low-tech, energy efficient and locally acceptable solutions. A housing survey was conducted to characterize the existing houses in Quetta and identify the common housing types. The most common housing typology i.e. houses with reinforced cement concrete (R.C.C) structure were selected for the further analysis. Indoor climate of 10 houses was monitored and structured interview was conducted to get insights about the thermal comfort level and perception of the residents. It was found that houses mainly face daily 4-8h electricity outage hours both in summer and in winter season. Residents are less satisfied with the cost of energy compared to the consumption. However, they seem relatively more satisfied with the prices of natural gas than electricity. The houses are very warm in summer and cold in winter. The situation leads to more use of mechanical systems to obtain thermal comfort. The monitored climate data shows that indoor temperature is high is summer and low in winter while the humidity level is generally low in both seasons. The increase in temperature decreases the humidity level making indoor environment more uncomfortable. [less ▲]

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See detailDisaster Mitigation Strategies for Adobe Houses: A Case Study of District Awaran, Balochistan, Pakistan
Mengal, Mamoon Ur Rashid; Mahar, Waqas Ahmed ULiege

in Malghani, Muhammad Najam Khan (Ed.) 1st International Conference on Advances in Engineering & Technology (ICAET 2018) (2018, April 03)

Every year disasters affect hundreds of millions of people globally causing damage that can take years to recover from. The process of rebuilding and re-establishing is vitally important to the successful ... [more ▼]

Every year disasters affect hundreds of millions of people globally causing damage that can take years to recover from. The process of rebuilding and re-establishing is vitally important to the successful continuation of life, industry and growth of affected societies and communities. Besides human casualties one of the most visible and striking effects of any major disaster is the destruction of houses. Construction of houses will be a major activity in the reconstruction phase of a disaster. The impact of disasters caused by natural hazards such as earthquakes can have serious consequences. Vulnerable populations are faced with unforeseen hardships, misery, and death if their houses and buildings collapse, and supporting infrastructure is severely damaged. Awaran District, Balochistan is one the least developed areas of Pakistan with very low Human development index (HDI). In 2013, an earthquake of Mw 7.7 occurred in the region, causing damage to the houses and human lives. The study covers the findings of the field survey for the damages occurred to the adobe houses in Awaran due to earthquake and analyse the causes of failure of the structures. It further suggests the design strategies and measures for the mitigation and prevention against these damages in order to decrease the loss to housing stock and lower the risks to human life due to failure of structures during earthquake. [less ▲]

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See detailStructural Defects in Residential Buildings: A Study of Quetta, Pakistan
Kasi, Zarak Khan; Mahar, Waqas Ahmed ULiege; Khan, Jalal Faisal

in Malghani, Muhammad Najam Khan (Ed.) 1st International Conference on Advances in Engineering & Technology (ICAET 2018) (2018, April 02)

Housing plays a very important role in the human life and our society. Housing has a great social and economic impact on our lives and the way we live. It has direct and immediate effect on health ... [more ▼]

Housing plays a very important role in the human life and our society. Housing has a great social and economic impact on our lives and the way we live. It has direct and immediate effect on health, education, economy, environment, political and social life of any society. In today’s technologically advanced world, the quality of housing and its maintenance in a livable condition yet remains a challenge in many parts of the globe. This study identifies the various types of structural defects present in the residential buildings of Quetta city. The data was collected from selected areas of the city using questionnaire, physical identification survey, and conducting interviews based on the fundamental knowledge of structural defects and their effects on buildings. It was found that houses in Quetta cantonment area possess the highest number of structural defects followed by Pashtoonabad area. Apart from identifying the most affected area, an overall state of the residential buildings in Quetta city regarding structural integrity was also determined. Since, the city of Quetta is located in earthquake zone, it is very important that these types of structural defects should be avoided in future residential buildings and necessary maintenance should be carried out in existing houses to avoid any serious damages to houses and loss of human lives due to the occurrence of any possible disaster. [less ▲]

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See detailAn overview of housing conditions, characteristics and existing infrastructure of energy, water & waste systems in Quetta, Pakistan
Mahar, Waqas Ahmed ULiege; Attia, Shady ULiege

Report (2018)

This report is a part of the PhD project entitled “Methodology for the design of climate responsive houses for optimized thermal comfort in Quetta, Pakistan” being carried out at University of Liège ... [more ▼]

This report is a part of the PhD project entitled “Methodology for the design of climate responsive houses for optimized thermal comfort in Quetta, Pakistan” being carried out at University of Liège, Belgium. The aim of the project is to improve indoor thermal comfort of free running houses in Quetta and raise the awareness of builders about climate sensitivity. The present findings are based on the housing survey and the available literature regarding housing and existing infrastructure of energy, water & waste systems in Quetta, Pakistan. We aim to provide the readers with insights and perspectives on housing construction, conditions and characteristics in Quetta, Pakistan and an overview of existing infrastructure regarding energy, water & waste systems. [less ▲]

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See detailMethodology to determine housing characteristics in less developed areas in developing countries: A case study of Quetta, Pakistan
Mahar, Waqas Ahmed ULiege; Knapen, Elke; Verbeeck, Griet ULiege

in European Network for Housing Research (ENHR) Annual Conference 2017 (2017, September)

The province of Balochistan is one of the least developed areas of Pakistan, facing problems of energy shortage and rapid urbanization. On the other side the region has great potential for renewable ... [more ▼]

The province of Balochistan is one of the least developed areas of Pakistan, facing problems of energy shortage and rapid urbanization. On the other side the region has great potential for renewable energy sources and the development of sustainable housing concepts. However, a first barrier is the lack of data on the existing housing stock. This paper will discuss the methodology and results of collecting housing data in this context for Quetta city. Considering unsatisfactory law and order situation, a survey was conducted to identify safe areas for housing survey. More areas were included to make the survey more representative. In total 215 houses in 32 residential areas were then surveyed. It is found that housing in Quetta can be divided in 3 main types; i.e. R.C.C frame, brick masonry and sundried bricks and that the energy consumption is mainly determined by area of the house and household size. [less ▲]

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See detailMethodology for the design and development of sustainable house concept for Quetta, Pakistan
Mahar, Waqas Ahmed ULiege; Verbeeck, Griet; Knapen, Elke

Poster (2017, April 26)

Quetta, the capital of Balochistan province, Pakistan, is facing problems due to increasing population and shortage of energy and water. The aim of this PhD is to develop a methodology for the design of ... [more ▼]

Quetta, the capital of Balochistan province, Pakistan, is facing problems due to increasing population and shortage of energy and water. The aim of this PhD is to develop a methodology for the design of sustainable houses in Quetta, taking into account the best possible solutions for the energy and water shortage and maximizing the use of local materials. In the first phase of the PhD, an inventory of the existing housing stock is made. Due to the unsatisfactory law and order situation, a safety questionnaire was distributed online to identify the safe areas for the housing survey. The areas identified as safe were complemented with areas in which university students and staff, who helped with the housing stock survey, live, to get more representative data. Then 215 houses were surveyed in 32 residential areas of Quetta by filling in the questionnaire, taking pictures and drawing sketches. In the survey, demographic information, data on the energy consumption and systems, construction types and material use is gathered. Three common structural systems are identified, i.e. R.CC frame, brick masonry and sundried bricks. For each structural system, the main materials for the construction and finishing of walls, roof and floor are inventoried. The most common housing type is R.C.C frame structure for all income groups, with a plot size depending on household size and income. In phase-II, this type of houses will be further analyzed in detail for their energy performance, environmental impact, construction patterns, water and energy consumption and the household characteristics. In phase-III, a sustainable house concept has to be developed taking into account all the information collected in phase-I & II. It will be further validated by simulations of energy, comfort and water performance and discussion with experts and future occupants. [less ▲]

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See detailDefects on Building Facades in Desa Bakti Employee Housing, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
Mahar, Waqas Ahmed ULiege

Master's dissertation (2012)

Defects are seen in many newly constructed houses around the world caused of various flaws and lacking such as design defect, construction, execution of work, material’s performance/selection etc. As ... [more ▼]

Defects are seen in many newly constructed houses around the world caused of various flaws and lacking such as design defect, construction, execution of work, material’s performance/selection etc. As building façade is exposed to the weather and environment so that defects can easily occur on it, especially in the tropical region. Studies have proved that the common defects occur on building facades damages the beauty and aesthetic view of the building. This research is designed to identify the defects on building facades, their position and magnitude. Therefore to achieve these objectives a physical survey is conducted within the selected housing area “Desa Bakti” and mapping is done according to the observation by using computer aided drawing tool and then results are calculated to identify the total affected area. It is to add that no special investigation or scientific method was used for this research except the physical observation method. From the data collection, it was found that building facades of several housing units were affected by common defects. These defects might not be of severe nature which may cause damages to stock and human life but it is more to aesthetic defect and still costs good amount to fix. No cracking or structural failure was noticed during the survey and the focus was only given to defects on building facades. It was found that most of the defects on building facades were located near the floor area or at lower level of facade which shows that these defects are reachable and can be easily fixed. [less ▲]

Detailed reference viewed: 41 (14 ULiège)