Tsukuba, Japan
Tsukuba, Japan

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A modifying agent of an alkaline electrolyzed water. A substance being supplied to a concrete structure in order to produce calcium silicate for repairing concrete and including an alkali metal silicate is defined as a concrete protective agent. The modifying agent is supplied to the concrete structure in advance of the supply of the concrete protective agent. The alkali metal silicate and the calcium ion included in the concrete protective agent contribute to the production of the calcium silicate. A method for repairing a concrete structure includes supplying the concrete protective agent to the concrete structure and supplying a modifying agent for a concrete structure including an alkaline electrolyzed water to the concrete structure, the step of supplying a modifying agent being performed before the step of supplying the concrete protective agent to promote production of the calcium silicate in the step of supplying the concrete protective agent.


Grant
Agency: European Commission | Branch: H2020 | Program: IA | Phase: EEB-03-2016 | Award Amount: 7.93M | Year: 2016

Heat4Cool proposes an innovative, efficient and cost-effective solution to optimize the integration of a set of rehabilitation systems in order to meet the net-zero energy standards. The project develops, integrates and demonstrates an easy to install and highly energy efficient solution for building retrofitting that begins from the Heat4Cool advanced decision-making tool (which addresses the building and district characteristics) and leads to the optimal solution combining (1) gas and solar thermally driven adsorption heat pumps, which permits the full integration with existing natural gas boilers to ensure efficient use of current equipment , (2) solar PV assisted DC powered heat pump connected to an advanced modular PCM heat and cold storage system, and (3) energy recovery from sewage water with high performance heat exchangers. This retrofitting solution together with a closer interaction between building monitoring, demand/respond supply match, weather forecast and HVAC activation/control through a Self-Correcting Intelligent Building Energy Management Systems (SCI-BEMS) will save at least 10% of energy consumption. The project will implement four benchmark retrofitting projects in four different European climates to achieve a reduction of at least 20% in energy consumption in a technically, socially, and financially feasible manner and demonstrate a return on investment of 8 years. The Heat4Cool consortium will ensure the maximum replication potential of the Heat4Cool solution by a continuous monitoring of technical and economic barriers during the development and validation phases in order to present the building owners and investors with clear energy and economic evidence of the value of implementing Heat4Cool solution. A detailed business plan will be developed in the beginning of the project to strengthen the exploitation plan of the retrofitting package and set the basis for a massive replication of the demonstrated concept across Europe.


Abu-Bakar S.H.,Glasgow Caledonian University | Abu-Bakar S.H.,University of Kuala Lumpur | Muhammad-Sukki F.,Glasgow Caledonian University | Muhammad-Sukki F.,Multimedia University | And 6 more authors.
Renewable and Sustainable Energy Reviews | Year: 2013

This paper focuses on the renewable heat incentive (RHI) scheme in the United Kingdom (UK); and in particular, on its implications in relation to solar thermal systems (STSs). First, a short review on the UK's energy demand is provided. Then, an overview of the past and present activities related to STS installations is discussed, covering regulation, policies and programmes, research and development expenditures and implementations. A financial analysis is presented afterwards, analysing the RHI scheme, in terms of total profit, payback period and average annual return on investment. This is based on installations of different sizes and at various levels of solar insolation. The analysis also presents the reduction of carbon dioxide emissions that could be achieved by installing an STS. From the financial analysis it is found that the RHI scheme could generate a good total profit, a high average annual return on the investment and an 'acceptable' payback period, depending on locations. As a result, it could increase the penetration of solar thermal systems in the UK. Significant reductions of carbon dioxide emission can also be achieved by installing an STS on a building. © 2013 Elsevier Ltd.


Abu-Bakar S.H.,Glasgow Caledonian University | Abu-Bakar S.H.,University of Kuala Lumpur | Muhammad-Sukki F.,Glasgow Caledonian University | Muhammad-Sukki F.,Multimedia University | And 6 more authors.
Energy Policy | Year: 2014

This short communication paper focuses on the renewable heat incentive (RHI) scheme in the United Kingdom (UK); and in particular, on its implication on domestic installations of solar thermal systems (STSs). First, a short review on the STS in the UK is provided. Then, a detailed description of the RHI is discussed. A financial analysis is presented afterwards, analysing the impact of the RHI scheme on the applicants, in terms of the net present value and the internal rate of return. From the financial analysis it has been found that the RHI scheme for domestic installations is only attractive if a longer period of RHI payment, i.e. 17 years, or a higher RHI rate i.e. £0.32 per kW. h is implemented. The current proposal from the UK government is not financially viable, and as a result, it may hinder the penetration of domestic solar thermal systems in the residential sector in the UK. © 2013 Elsevier Ltd.


Kishi M.J.,Hokkaido University | Kishi M.J.,Japan Agency for Marine - Earth Science and Technology | Kaeriyama M.,Hokkaido University | Ueno H.,Hokkaido University | And 2 more authors.
Deep-Sea Research Part II: Topical Studies in Oceanography | Year: 2010

From the 1970s to 1990s, a reduction in the body size of Japanese chum salmon (Oncorhynchus keta) was observed. To investigate this body size reduction in the North Pacific, we developed a bioenergetics model for chum salmon coupled with the results from a lower trophic ecosystem model embedded into a three-dimensional global model. In the bioenergetics model, respiration and consumption terms are assumed to be functions of water temperature and prey zooplankton density, which are the determining factors of the reduction of body size. The model reproduced the body size of the 1972 and 1991 year classes of chum salmon. The reproduced body size of the 1972 year class was larger than that of 1991 year class, and this result agrees with observations from the Bering Sea. Our model also reproduced the body size trend from l970 to 2000. The prey density, especially in the eastern North Pacific, had a greater influence on the change of body size than did the SST. This suggests that the size reduction of Japanese chum salmon in the 1990s was partly affected by changes in prey zooplankton density. In the context of the global warming scenario, we discuss changes in the migration route of chum salmon and predict that the population of Japanese chum salmon experience significant declines over this century. © 2010 Elsevier Ltd. All rights reserved.


A modifying agent for a concrete structure that allows the modification operation of a concrete structure to be safe for the human body and simple, and is capable of imparting high durability to a concrete structure, and a method for manufacturing the modifying agent. A method for repairing a concrete structure, capable of efficiently repairing in a shorter time than conventional methods for repairing a concrete structure. The modifying agent for a concrete structure is an alkaline electrolyzed water. The alkaline electrolyzed water includes calcium ions dissolved therein. The pH of the alkaline electrolyzed water is, for example, 11 or more.


The present invention provides a concrete protective agent including an alkali metal-containing silicate and an alkaline electrolyzed water. Alternatively, the present invention provides a concrete protective agent including an alkali metal-containing silicate and silicon dioxide. Examples of the alkali metal-containing silicate include sodium silicate, potassium silicate and lithium silicate. By supplying the concrete protective agent to a concrete structure, the repair of the concrete structure can be performed. Thus, the present invention provides a concrete repairing agent having a significant repairing effect as compared with conventional concrete repairing agents.


A concrete protective agent including an alkali metal-containing silicate and an alkaline electrolyzed water. A concrete protective agent including an alkali metal-containing silicate and silicon dioxide. Examples of the alkali metal-containing silicate include sodium silicate, potassium silicate and lithium silicate. By supplying the concrete protective agent to a concrete structure, the repair of the concrete structure can be performed. A concrete repairing agent having a significant repairing effect as compared with conventional concrete repairing agents.


Grant
Agency: GTR | Branch: Innovate UK | Program: | Phase: Feasibility Study | Award Amount: 69.95K | Year: 2016

The aim of the project is to integrate Soltropy’s patented freeze tolerance solution, developed for vacuum tube solar thermal collectors, with AES Ltd’s (AES Solar) flat plate solar thermal collectors. This will help to significantly reduce the installed cost of their solar thermal systems. Most solar thermal systems in the UK do not run water directly through the collector panels as it can cause freeze damage. Instead they run an antifreeze fluid through the collector which means that when a new solar thermal system is installed a perfectly good tank is replaced by a new hot water tank with a heat exchanger. This can double the price of the installed system due to the new tank and additional labour costs. A new tank is not required with Soltropy’s solution which allows water to be used directly in the system. It works by using a compressible tube inside the copper piping which takes up the expanded volume of the water if/when it freezes. The cost savings made from not needing a new hot water cylinder and from the reduced installation time will lead to a steep reduction in the installed cost of solar thermal systems


The present invention provides a modifying agent for a concrete structure that allows the modification operation of a concrete structure to be safe for the human body and simple, and is capable of imparting high durability to a concrete structure, and a method for manufacturing the modifying agent. The present invention further provides a method for repairing a concrete structure, capable of efficiently repairing in a shorter time than conventional methods for repairing a concrete structure. The modifying agent for a concrete structure is an alkaline electrolyzed water. The alkaline electrolyzed water includes calcium ions dissolved therein. The pH of the alkaline electrolyzed water is, for example, 11 or more.

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