Search results

A small wind turbine blade was designed and optimized in this research paper. The blade plays an important role, because it is the most important part of the energy absorption system. Consequently, the blade has to be designed carefully to enable to absorb energy with its greatest efficiency. The main objective of this paper is to optimized blade number and selection of tip speed ratio corresponding to the solidity. The power performance of small horizontal axis wind turbines was simulated in detail using blade element momentum methods (BEM). In this paper for wind blade design various factors such as tip loss, hub loss, drag coefficient, and wake were considered. The design process includes the selection of the wind turbine type and the determination of the blade airfoil, twist angle distribution along the radius, and chord length distribution along the radius. A parametric study that will determine if the optimized values of blade twist angle and chord length create the most efficient blade geometry. The 3-bladed, 5-bladed and 7-bladed rotor achieved maximum values of Cp 0.46, 0.5 and 0.48 at the tip speed ratio 7, 5 and 4 respectively. It was observed that using BEM theory, maximum Cp varied with strongly solidity and weakly with the blade number. The studies showed that the power coefficient increases upto blade number B = 5, while the blade number if increased above 5 then the power coefficient decreases at operating pitch angle equal to 3°. Highest Cp would have solidity between 4% to 6% for number of blade 3 and design point tip speed ratio of about "7". Highest Cp would have solidity ranging from 5% to 10% for number of blade 5 and 7 and design point tip speed ratio of about 5 and 4 respectively.

Achieving tenure security is a global challenge impacting cities of the global south. The purpose of this paper is to evaluate the role of technology-enabled solutions as an enabler for the tenure rights of slum dwellers.

In this paper, we adopted a case study approach to analyze the use cases for technologies aiding India’s securitization of land tenure. The flagship state mission of Odisha, named the Jaga Mission, and that of Punjab, named BASERA – the Chief Minister’s Slum Development Program – were used as cases for this paper.

It was found that technologies like drone imagery and digital surveys fast-tracked the data collection and helped in mapping the slums with accuracy, mitigating human errors arising during measurement – a necessary condition for ensuring de jure tenure security. The adoption of a technology-based solution, along with a suitable policy and legal framework, has helped in the distribution of secure land titles to the slum dwellers in these states.

Odisha’s and Punjab’s journey in using technology to enable tenure security for its urban poor residents can serve as a model for the cities of the global south, dealing with the challenges of providing secure tenure and property rights.

Environmental pollution has been a great concern for the government of Bangladesh. Bangladesh was the least developed country, with a lot of financial challenges. The industrial process in Bangladesh has not been able to maintain the directives of the SDGs. The lack of proper industrial policy, technological backwardness and lacunae in implementing environmental governance have affected the environment of the country. The unorganised and informal manufacturing units are often accused of emitting greenhouse gases. Like other South Asian countries, the informal manufacturing sector in Bangladesh has been established without proper planning and environmental guidelines. In Bangladesh, the informal sector includes brick kilns, food processing factories, leather tanning, etc., which are responsible for environmental pollution, health hazards and violations of SDG goals. The issue of environmental pollution by the informal manufacturing sectors of Bangladesh needs to be investigated in the context of the socioeconomic profile of the country and the performance of the government in monitoring the issue. Due to the lack of environmental governance, a high level of pollution has been occurring in the country. What kinds of economic tools and industrial policies are needed to be implemented to avoid environmental hazards? The content analysis method will be applied in this chapter.

The objective of this study aims to investigate the manner in which Human Resource Practices (HRP), leadership, and intellectual capital contribute to organisational agility within the healthcare sector, and to assess how this agility influences overall organisational performance.

This research was undertaken within healthcare organisations situated in the United Arab Emirates (UAE). The study sample comprised of 275 participants, and the distribution of the sample across various classifications closely mirrored that of the larger population. To assess the formulated hypotheses, the research utilized Partial Least Squares Structural Equation Modeling (PLS-SEM) software.

Results confirmed the proposed framework and uncovered the significance of HRP, leadership and intellectual capital on organisational agility and organisational performance in a dynamic environment like hospitals.

This study demonstrates originality by investigating hospital responsiveness within a highly dynamic context necessitating agility from both managerial and non-technical perspectives. Additionally, it explores the impact of HRP, leadership, and intellectual capital on organisational agility, along with its repercussions for overall organisational performance.