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Three different configurations of vertical axis wind turbines (VAWT) were fabricated by changing the storey height and their orientations. The purpose of this study is to find the effect of storey height and orientation on the performance of wind turbines. The multistory VAWT has three storeys. The first configuration had increased middle storey height, with 0–90-0 orientation of blades. Wherein the second turbine had equal storey heights. The third configuration had increased middle storey height with 0–120-240 orientation of blades. The blades were tested numerically and experimentally.

In this research work, prototypes of innovative multistory VAWT were built with different configurations and orientations. Three configurations of three-storey VAWT were fabricated by varying the height of storey of turbines. The orientations were made by keeping the storeys orthogonal to each other. Multistory VAWT was tested numerically and experimentally. ANSYS Fluent was used for computational fluid dynamic analysis of VAWT. K-epsilon model was used for numerical analysis of wind turbine. Experimentation was carried out in a wind tunnel for different tip speed ratios (TSR).

The three configurations of innovative multistory VAWT were tested numerically and experimentally for different TSR. It has been found that the VAWT with equal storey height had a better performance as compared to the other two configurations with increased middle storey height. The power coefficient of equal storey height VAWT was about 22%, wherein the power coefficient of turbines with reduced upper and lower storey height was between 5%–8%.

The research work of multi-storey VAWT is very novel and original. The findings of the research will contribute to the existing work done in the field of VAWT. This will help other researchers to have insight into the development of multistory VAWT. The effect of storey height and configuration of multi-storey VAWT is studied numerically and experimentally, which concludes that the performance of equal storey is superior as compared to other configurations.

The multi-storey concept of VAWT was developed to counter the problem of wind direction. The blades of each storey were arranged orthogonal to each other. This helped to harness wind power irrespective of the direction of the wind. This will make the VAWT more sustainable and financially viable for domestic use.

The turbines are specially designed for remotely located housed in rural areas where the power grid is not yet reached. Users can install the turbine on their rooftop and harness wind power of 100 W capacity. This will help them to make their life easy.

This research work is very original and first of a kind. The multistory concept of the wind turbine was checked for the effect of storey height and orientations of blades on its performance. Different configurations and orientations of the vertical axis were designed and developed for the first time.

One of the most significant challenges facing contemporary architectural and urban design is how it can become more sustainable. Energy consumption by housing is a major source of greenhouse gas emissions and a cause of depletion of non-renewable energy sources. Of particular concern is existing stock, which has the worst performance and is hardest to improve.

One means of addressing these issues that is attracting increasing interest is the integration of embedded renewable energy technologies. This paper discusses the use of wind turbines on buildings as a response to climate change legislation. It examines the potential for embedded generation in a specific built form (existing high rise housing) and places this in the context of a particular geographical location (Glasgow, Scotland) where the existing provision is highly problematic, but which also presents significant potential. It describes findings from two projects in Glasgow, a pilot installation on a city centre multi-storey block, and subsequent feasibility study for a Housing Association managed multi-storey block and identifies the problems and opportunities that may be applied in similar projects elsewhere.

The purpose of this paper is to investigate the feasibility of the adaptive reuse of a particular case study, and the evaluation of it within the context of international research done on similar projects. It aims to highlight the reuse potential of industrial structures by private developers, and the financial, environmental and social advantages that they could hold.

A literature review that explores these themes is followed by the post-occupancy analysis of the case study. Data were gathered primarily through interviews with key role players in the project, site visits and an analysis of the relevant project documentation.

While there are a number of international examples of the reuse of power stations in particular, these are mostly on a large scale, dependent mostly on government funding, lottery funding and donations and generally stripped of most of their machinery. The case study is a smaller-scale example which demonstrates that a project of this nature can be entirely funded by a private developer, that it can be sustainable and that it can be done while keeping most of the original machinery in place. The case study confirms a number of findings that are revealed in current research in the field, and it also shows the relative advantages of adaptive reuse when compared to new-build projects.

There is fairly limited information and published research about adaptive reuse, especially in South Africa, so the paper builds on international knowledge on the subject while exposing a suitable local example. It is hoped that the study will not only lead to further research and post-occupancy analysis of similar projects in South Africa in particular, but also support international research that indicates the feasibility of adaptive reuse.

The Thesen Islands power station (or the Turbine Hotel as it is now known) could potentially be used as a precedent for similar redevelopments, and it could shed some light on the opportunities and constraints related to the management of fixed engineering assets.

ALTHOUGH a new epoch in high‐speed flight opened with the introduction of the jet propulsion engine, new problems were presented by the thrust characteristics and high fuel‐consumption of the gas turbine.

IN a recent address Mr. S. J. Noel‐Brown, a work study consultant who is frequently called in by local authorities, said that 209 such bodies, out of a total of 1,800, had shown a lively interest in the subject. Of these many used outside consultants or had joined in group schemes. Some authorities, however, were still living in the quill pen era, scarcely having heard of typewriters. They were struggling along with laborious, out‐of‐date equipment.

In the last decades, the demand and use of renewable energies have been increasing. The increase in renewable energies, particularly wind energy, leads to the development and innovation of powerful wind energy converters as well as increased production requirements. Hence, a higher supporting structure is required to achieve higher wind speed with less turbulence. To date, the onshore wind towers with tubular connections are the most used. The maximum diameter of this type of tower is limited by transportation logistics. The purpose of this paper is to propose an alternative wind turbine lattice structure based on half-pipe steel connections.

In this study, a new concept of steel hybrid tower has been proposed. The focus of this work is the development of a lattice structure. Therefore, the geometry of the lattice part of the tower is assessed to decrease the number of joints and bolts. The sections used in the lattice structure are constructed in a polygonal shape. The elements are obtained by cold forming and bolted along the length. The members are connected by gusset plates and preloaded bolts. A numerical investigation of joints is carried out using the finite element (FE) software ABAQUS.

Based on the proposed study, the six “legs” solution with K braces under 45° angle and height/spread ratio of 4/1 and 5/1 provides the most suitable balance between the weight of the supporting structure, number of bolts in joints and reaction forces in the foundations, when compared with four “legs” solution.

In this investigation, the failure modes of elements and joints of an alternative wind turbine lattice structures, as well as the rotation stiffness of the joints, are determined. The FE results show good agreement with the analytical calculation proposed by EC3-1-8 standard.

THIS paper is based on the 16th R. J. Mitchell Memorial Lecture presented to the Southampton Branch of the Royal Aeronautical Society at Southampton University on March 5, 1969, by the author.

The purpose of this paper is to look at fibreoptic sensing techniques and applications.

The paper provides information on fibreoptic sensing technologies, instrumentation, advantages and applications.

Fibreoptic sensing, especially fibreoptic Bragg gratings, provide a highly effective means of monitoring internal changes in structural and other components that were previously impossible or very difficult to detect. Such systems are now approaching full commercialisation.

The paper provides a useful overview of how fibreoptic sensors work, and the advantages they provide when used in instrumentation applications ranging from compact devices to large and complex structures, where they may be structurally integrated.

A new electrolytic corrosion test devised by the General Motors Research Laboratory at Warren, Michigan, has given spectacularly fast results in comparison with other types of test

Speed bumps invite varied responses from homeowners, drivers and policymakers. Parents of small children like speed bumps, if they slow the passing traffic, but prospective home buyers may reject a home with a speed bump nearby, contemplating the traversal of it thousand times during an ownership period. The purpose of this study is to empirically identify the effect of speed bumps on home values.

Analysis presented here is based on an examination of home sales prices and exploits variation in the number of speed bumps traversed and the installation of speed bumps to identify the effect of speed bumps on home values. An anonymous online survey is also used to shed light on drivers of the empirical results.

Initial results exploiting variation in the number of bumps traversed suggest speed bumps are associated with reduced residential property values. An estimated treatment effect of speed bump installation underscores the original findings. Finally, survey results imply that older homeowners and homeowners with children may favor speed bumps but less than the disfavor of those who do not.

The research presented here applies to speed bumps in residential areas and on streets not considered through streets.

The findings suggest that planners should investigate options such as medians and roundabouts instead of speed bumps.

These results suggest that communities can be visually improved and home values lifted through the removal of speed bumps and installation of other traffic control devices.

This research is valuable to residential developers, planners and neighborhood associations across the country.