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2 results on '"Abdul Nasir Laghari"'

1. Techno-Economic Analysis of Solar PV Electricity Supply to Rural Areas of Balochistan, Pakistan

Author

Syed Ahsan Ali Shah, Gordhan Das Valasai, Asif Ali Memon, Abdul Nasir Laghari, Nabi Bux Jalbani, and Jody L. Strait

Subjects
rural electrification, solar PV, economic feasibility, CO2 mitigation, Balochistan, Technology
Abstract

Rural electrification is a fundamental step towards achieving universal access to electricity by 2030. On-grid rural electrification remains a costly proposition, therefore the need to consider off-grid renewable energy solutions is inevitable. However, the critical issue pertaining to local power generation through renewable energy is the absence of area-specific production capacity and economic viability data for the different renewable energy technologies. This paper addresses this issue for Pakistan’s Balochistan province by assessing the area’s potential and economic feasibility of using solar PV for rural electrification. The results suggest that the Balochistan province has the best solar irradiance value in the world. Furthermore, optimal tilt angles calculated for respective regions can significantly increase solar energy yield. The economic feasibility study, carried out for solar PV systems, reveals that the electricity generated using solar PV costs Rs. 7.98 per kWh and is considerably cheaper than conventional electricity, which costs approximately Rs. 20.79 per kWh. Similarly, solar PV systems could mitigate 126,000 metric tons of CO2 annually if 100% of the unelectrified households adopted solar PV systems. Based on these research findings, this paper proposes a policy that would serve as a guideline for the government to extend solar PV-based off-grid rural electrification projects in Balochistan as well as on a national scale.

Published
2018
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2. Adoptability of Lean Construction Techniques in Pakistan’s Construction Industry

Author

Hafiz Usama Imad, Shadab Noor Bhangwar, Abdul Nasir Laghari, Aftab Hameed Memon, and Muhammad Akram Akhund

Subjects
Lean construction, Environmental Engineering, Task management, Integrated project delivery, 020209 energy, media_common.quotation_subject, 02 engineering and technology, Building and Construction, Geotechnical Engineering and Engineering Geology, Engineering management, Work (electrical), 0202 electrical engineering, electronic engineering, information engineering, Construction waste, Customer satisfaction, Quality (business), Business, Productivity, Civil and Structural Engineering, media_common
Abstract

There is a philosophy in the construction industry to reduce the cost of a project by reducing construction waste and improving productivity. With lower expenses, lean construction emphasizes the cost of the project at a minimum cost. Globally, the philosophy has gained a wide range of popularity in the construction sector. The Lean Construction has helped practitioners with several tools and techniques to implement at different stages of a construction project. Following global trends, this study has investigated lean practices in Pakistan. With the potential advantages experienced by its implementation in Pakistan's construction projects and the level of implementation of various types of tools and techniques has been analyzed. To achieve the goal, the study had tried to capture construction projects in which four shareholders are being represented, which are clients, consultants, contractors and material suppliers. Overall 34 completed questionnaires were collected and then analyzed. The results of the analysis have indicated that pull approach, standard of work, time consuming, visualization tools, the integrated project delivery methods and the quality failure in safe limits are common lean techniques which are being implemented to the local construction industry. While there are major benefits of waste reduction, client satisfaction, better communication, visual control and proper task management to build appropriate work are the key benefits of lean construction.

Published
2018
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