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J. U. De Villiers
AbstractDespite the theoretical criticisms against it, payback is one of the most commonly used methods of investment appraisal in practice. Its ease of calculation and simplicity are seen as its most important advantages. In addition, an unsophisticated...
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V. M. Ilman,V. V. Skalozub,V. I. Shynkarenko
Pág. 85 - 94
It is solved the problem of graphs regenerating by their subgraphs with the help of deriving systems of graphs. In the article there is offered the algorithm of solving this problem and considered an example of graphs regenerating.
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Wangjie Pan, Ye Zhang, Wangwang Jin, Zede Liang, Meinan Wang and Qingqing Li
This study offers a fresh concept for the use of PV technology. The concept behind this research can serve as a model for the creation and application of other new energy sources.
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Md. Rezaul Karim, B. M. Sadman Sakib, Sk. Sadman Sakib and Monzur Alam Imteaz
Despite numerous studies on residential rainwater tank, studies on commercial rainwater tank are scarce. Corporate authorities pay little heed on this sustainable feature. With the aim of encouraging corporate authorities, this study presents the feasibi...
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Francesco Asdrubali, Daniela Venanzi, Luca Evangelisti, Claudia Guattari, Gianluca Grazieschi, Paolo Matteucci and Marta Roncone
The majority of Italian schools (70%) were built in the absence of any legislation related to energy efficiency, and therefore have very low energy performance due to aging or poor quality of construction. An energy retrofit of this building stock is nee...
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Tiina Myllymaa, Henrik Holmberg and Pekka Ahtila
Soot sludge is a waste stream formed in the fuel oil gasification of formic acid and hydrogen peroxide production. The soot sludge has a high moisture content (95%) and is presently combusted with heavy fuel oil in order to dispose of the sludge. Experim...
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O. Ribero, D. Garzón, Y. Alvarado, I. Gasch
Pág. Page 146
This article discusses the economic benefits of the implementation of the sustainable building LEED (Leadership in Energy and Environmental Design) certification in the Centro Ático building located in Bogotá, Colombia. Initially, the consumption of wate...
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Jesús M. Iglesias Ferrer,Joel Morales Salas
Pág. 55 - 65
El trabajo presenta las formulaciones para dimensionar y simular instalaciones térmicas solares.Se establecen los criterios para el análisis del sistema energético y la descripción del método de recuperación diferencial de la inversión. Se presentó un Pr...
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Thipjak Nualboonrueng, Pongpith Tuenpusa, Yuki Ueda and Atsushi Akisawa
This study presents experimental results on Photovoltaic-thermal (PVT) solar systems, the commercial photovoltaic (PV) panels used as solar absorbers in PVT collectors, which are amorphous and multi-crystalline silicon. Testing was done with outdoor expe...
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Alberto Jorge de Souza Júnior,Wanderlei José Ghilardi,Sérgio Rossi Madruga,Samia Mercado Alvarenga
Pág. 63 - 73
Este trabalho apresenta a análise da viabilidade econômico-financeira na instalação de um sistema de energia solar fotovoltaica nas Organizações Militares do Exército Brasileiro localizadas na cidade de Santa Maria (RS). Dentre os objetivos do trabalho e...
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Hongjun Fan, Huan Tu, Hossein Enshaei, Xiangyang Xu and Ying Wei
Ship-source air pollutants, especially sulphur oxides (SOx), have a major impact on human health, the marine environment and the natural resources. Therefore, control of SOx emissions has become a main concern in the maritime industry. The International ...
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Enrique Larrumbide Gómez-Rubiera,Jorge Gallego Sánchez-Torija,César Bedoya Frutos
Pág. 145 - 155
An energy audit is a useful tool that sets out possibilities for improvement, optimization and energy saving. For the study of the thermal envelope, it is useful to use energy simulation tools that use suitably validated reference climates and simulation...
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Miklós Kassai
Pág. 220 - 229
The object of this research was to investigate of the energy performance of a national chicken slaughterhouse in order to achieve condenser heat utilization generated by the operation of the existing, refrigerant systems. The paper focuses also for the t...
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Isaac Rojas Hernández,Fernando Lizana Moreno
Pág. 195 - 202
Costa Rica ha asumido el compromiso de alcanzar la carbono-neutralidad, su matriz energética, con niveles bajos de emisión de gases de efecto invernadero ha sido de importancia para cumplir este objetivo. Ante la introducción de nuevas tecnologías de gen...
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Mawih Kareem Al Ani
Pág. 469 - 475
This study aims to examine the associations between strategic variables and use the PBP in evaluating the capital budgeting decisions from the perspective of managers and investors in Oman. These variables are risk, liquidity, profitability, market obsta...
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Li Huang and Rongyue Zheng
Building energy consumption has distinctly increased in the hot-summer and cold-winter zone in China. Solar cooling technology has been developed to reduce the increasing electricity consumption for air conditioning and to shift the peak load during hot ...
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Li Huang and Rongyue Zheng
Building energy consumption has distinctly increased in the hot-summer and cold-winter zone in China. Solar cooling technology has been developed to reduce the increasing electricity consumption for air conditioning and to shift the peak load during hot ...
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Chin-Chi Cheng, Dasheng Lee, Ching Hung Wang, Shu Fen Lin, Hung-Peng Chang and Shang-Te Fang
The energy management service (EMS) has been utilized for saving energy since 1982 by managing the energy usage of site or facilities through the microprocessor, computer, Ethernet, internet, and wireless sensor network. The development and represented ...
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Matthew Champness, Leigh Vial, Carlos Ballester and John Hornbuckle
Irrigated rice is the largest user of precious global water reserves. Adoption of water-saving irrigation practices is limited by the associated increased labor demand compared to flooded rice cultivation. Automated gravity surface irrigation systems hav...
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R.K. Kulkarni,I.H. Patel,R.D. Bothe,P.P. Vyavahare
Pág. 53 - 61
Evaporative cooler operating on solar energy is a viable option in places where there is scarcity of grid power and is also useful for short term storage of farm products. This paper analyzes the performance of a commercial cooler operated on the solar p...
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