scholarly journals Using improved iterative gravity method to optimize the investment location of agricultural biomass power generation projects: a case study

2021 ◽  
Vol 70 (9&10) ◽  
pp. 145
Author(s):  
Zhibin Liu ◽  
Xin Wang ◽  
Aisheng Ren
Keyword(s):  
Power Generation ◽  
Rural Areas ◽  
Power Plants ◽  
High Reliability ◽  
Optimal Investment ◽  
Normal Operation ◽  
Energy Structure ◽  
Agricultural Biomass ◽  
Biomass Power Plants ◽  
Investment Location

Biomass power generation has characteristics of good quality of power generation, high reliability and mature technology. It plays significant aspects in maintaining the safety of energy, optimizing energy structure, alleviating environmental pollution and promoting the economic development in the rural areas. Analyzing the investment of biomass power generation in China systematically cannot only improve the scientificity of the investment process, but also guide the industry to develop rapidly and healthily. At present, the investment areas of agricultural biomass power generation projects are too concentrated and the fuel supply is difficult, which affect the normal operation of biomass power plants and lead to loss or on the verge of profit and loss of biomass power generation plants. This paper constructed the optimal model of investment location of agricultural biomass power generation projects using the iterative gravity algorithm based on the key factors analysis to affect the operation costs of agricultural biomass power plants. The model optimized the transportation lines and transportation distance, and gained the smallest transport costs of power generation materials after a few iterative calculations. This paper took Huantai County as an example, and determined the optimal investment location of agricultural biomass power project using the Region props toolbox of Matlab 7.4. The simulating calculation of Huantai County showed that the results given by this model are reliable, and this method to select the investment location of agricultural biomass power projects is feasible and effective.

Renewable Energy Techniques – A Sustainable Model for Architects Regarding Physical Environment and Economic Empowerment of the Sub Urban and Rural Areas in Bangladesh

2012 ◽  
Vol 178-181 ◽  
pp. 244-247
Author(s):  
Ruba Rummana ◽  
Ar.Silvia Alam ◽  
Ar. Nusrat Wahid ◽  
Md. Saifuzzaman
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Rural Areas ◽  
Physical Environment ◽  
Power Plants ◽  
Long Time ◽  
High Investment ◽  
The Government ◽  
Architectural Planning ◽  
Urban And Rural Areas

This paper mainly concentrates on the energy crisis for a long time in Bangladesh. The government is trying its best to overcome this problem. Due to high investment requirement for conventional power plants, responses from the private sector for power generation are very poor. One alternative solution may be the expanded use of renewable energy. At present solar cells are in use for power generation. But due to high initial investment required for solar panel installation, this form of renewable energy has not been practiced much. The aim behind the study is to integrate the architectural planning regarding physical environment and power crisis problem which may lead to an ultimate improvement of socio economic scenario of the country. In doing so the paper proposes a hypothetical model using biogas as a source of renewable energy by using the rural waste-leading to cash from trash.

scholarly journals An Economic and Technology Analysis of a New High-Efficiency Biomass Cogeneration System: A Case Study in DC County, China

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3957
Author(s):  
Hui Huang ◽  
Xiaoli Yan ◽  
Shizhong Song ◽  
Yingying Du ◽  
Yanlei Guo
Keyword(s):  
Power Generation ◽  
Power Plants ◽  
High Efficiency ◽  
Biomass Energy ◽  
Utilization Efficiency ◽  
Water Heating ◽  
Circulating Water ◽  
Cogeneration System ◽  
Biomass Power Plants ◽  
Heating Technology

Biomass is the fourth largest energy source in the world; it is easy to store and can be converted into various kinds of renewable energies. The biomass cogeneration system is an important way to utilize biomass energy, especially in northern China. At present, there are many problems in biomass power plants in China, such as high latent heat loss of chimney and cooling towers, low power generation efficiency, and thermal efficiency. In order to solve this problem, this paper introduces low vacuum circulating water heating technology in the biomass cogeneration system, and expounds the differences between China and Western countries in biomass power plants. Based on this background, the technology is redesigned and reformed to make it more suitable for the biomass fuel varieties in the power plant location, and realize the localization of technology and the expansion of scale. The application of this improved technology in China’s biomass cogeneration project is analyzed. Based on the biomass cogeneration project in the DC County of China, the analysis confirms that the designed low vacuum circulating water heating technology is suitable for biomass power generation projects with agricultural and forestry wastes as raw materials, and its application can greatly improve the heat utilization efficiency of the whole cogeneration system. At the same time, in order to estimate the possibility of profitable investment when the key financial parameters change, the financial risk is analyzed. The results show that the probability of 90% net present value (NPV) in 15 years is between 355.28 million RMB and 623.96 million RMB, and the internal rate of return can reach 17.7%.

scholarly journals A Co-Opetition Straw Supply Strategy Integrating Rural Official Organizations and Farmers’ Behavior in China

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2802 ◽  
Author(s):  
Kaiyan Luo ◽  
Xingping Zhang ◽  
Qinliang Tan
Keyword(s):  
Power Generation ◽  
Supply Chain ◽  
Power Plants ◽  
Central Government ◽  
Transportation Cost ◽  
Supply System ◽  
Benefit Sharing ◽  
Multi Agent ◽  
Agricultural Producer ◽  
Biomass Power Plants

China has a huge potential of biomass power generation since it is a big agricultural producer and abundant in agriculture straw. However, the current straw supply system cannot guarantee the feedstock sufficiency for biomass power plants. The main reason is the high costs of straw collection and transportation because farmers are scattered across the country and farming in a small-scaled method for self-support. This study aims at solving the issue with the introduction of China’s rural official organizations to collect agriculture straw in a centralized way and to share benefits with farmers. We apply the approach of multi-agent modeling and simulation to analyze the farmer’s participation behavior within a co-opetition supply strategy after the rural official organizations are incorporated. The results demonstrate that farmers’ participation is positively affected by the cooperative enthusiasm of rural official organizations. In addition to those basic factors, such as straw price, transportation cost, and shipping distance, the benefit sharing policy has a significant impact on the equilibrium percentage of the cooperative farmers. We recommend that the Chinese central government encourage and support rural official organizations to participate in the agriculture straw supply chain, and the benefit sharing policy should be implemented with the precaution against free rides.

scholarly journals The Development of Straw-Based Biomass Power Generation in Rural Area in Northeast China—An Institutional Analysis Grounded in a Risk Management Perspective

2020 ◽  
Vol 12 (5) ◽  
pp. 1973 ◽  
Author(s):  
Lingling Wang ◽  
Tsunemi Watanabe
Keyword(s):  
Power Generation ◽  
Risk Management ◽  
Power Plant ◽  
Power Plants ◽  
Biomass Energy ◽  
Energy Industry ◽  
Biomass Supply ◽  
Management Perspective ◽  
Biomass Power Plant ◽  
Biomass Power Plants

Given a lack of consideration for the role and importance of stakeholders and the importance of stakeholders in the operation of biomass power plants in China, a comprehensive analysis oriented toward stakeholder risk management is needed to further develop the country’s biomass energy industry. Accordingly, we analyzed institutional factors that contribute to or constrain progress in biomass power generation in China. Data were collected from 275 straw suppliers (farmers) living around a biomass power plant, 15 middlemen, five power plant managers, and five local government officers. Interviews were held with all the participants, but questionnaires were additionally administered to the straw suppliers. Results showed that: (1) risk transfer in the biomass supply chain is one of the reasons why farmers are unwilling to supply straw; (2) middlemen are vital intermediaries between biomass power plant managers and farmers as a middleman-based biomass supply system is necessary to guarantee the quantity of straw supply, and; (3) the institutional structure that underlies the Chinese biomass energy industry is immature.

Development of a Water Injection System Fusible Plug for Severe Accidents at Nuclear Power Plants

2020 ◽  
Author(s):  
Sei Hirano ◽  
Daisuke Hirasawa ◽  
Yoshihisa Kiyotoki ◽  
Keisuke Sakemura ◽  
Keiji Sasaki ◽  
...  
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
High Reliability ◽  
Water Injection ◽  
Severe Accident ◽  
Injection System ◽  
Normal Operation ◽  
Autonomous Operation ◽  
Performance Requirements

Abstract Background: When terminal stage of Severe Accident (SA) with no coolant injection at a nuclear power plant, the equipment that has cooled and solidified through water injection to a molten core that has ex-vessel and fallen outside of the pressure vessel will then be required to operate autonomously by heat detection, without external signals or power (e.g. electricity, air). The fusible plug operation is triggered by fusible alloy which receives heat from molten core and will melt. Because the fusible plug is also the boundary of Suppression Pool (S/P), high reliability is required for sealing performance. It is for that reason that Hitachi GE Nuclear Energy Ltd. (Hitachi-GE) has developed a fusible plug to serve as a device necessary to operate this system. Features of the Fusible Plug: The autonomous operation of the fusible plug is triggered by the melting of a fusible alloy, which is part of the fusible plug. However, the fusible alloy has a remarkably low mechanical strength and therefore is not suitable as a strength member. As such, it is necessary to ensure reliable plug sealing without applying a load to the fusible alloy so as to prevent the fusible plug from malfunctioning during normal operation. Therefore, to reduce the load to be applied to the fusible alloy, Hitachi-GE has developed a fusible plug structure that operates autonomously by detecting the ambient temperature without using the fusible alloy as a strength member. We have performed a verification test using this fusible plug and confirmed that it satisfies the predetermined performance requirements. Future Actions: Hitachi-GE is holding discussions on using the fusible plug at nuclear power plants in Japan. In the future, we plan to expand to the overseas.

Biomass Power Generation Potential and Utlization in Pakistan

2020 ◽  
Vol 23 (21) ◽  
pp. 2350-2365
Author(s):  
Muhammad G. Doggar ◽  
M. Shahzad Khurram ◽  
Saima Mirza ◽  
Moinuddin Ghauri ◽  
Farrukh Jamil ◽  
...  
Keyword(s):  
Power Generation ◽  
Rural Areas ◽  
Power Plants ◽  
Electricity Consumption ◽  
Economic Loss ◽  
Petroleum Products ◽  
Biomass Energy ◽  
Resource Base ◽  
Oil Reserves

Pakistan is experiencing the worst power shortage since 2007 ranging from 5000 to 7000 MW. This has led to introduction of load shedding program which has caused economic loss @7% to the GDP. The indigenous oil reserves are poor and every year crude oil and petroleum products costing US$ 15.473 billion are imported. The potential of biomass energy is excellent, and Pakistan may generate 38000 GWh electricity annually using 25% crops residue and 50% animal waste. Except for Punjab province survey of crops biomass needs to be conducted to estimate the biomass resource potential in the country. Based upon the data, the size of power plants can be determined, and site of plants can be decided. Very few power plants have been installed by local industry under captive mode and their experience is encouraging. The indigenous capacity building for installation and operation of bio-mass based power plants are required. This paper reviews the power shortage and its implications on economy of Pakistan. It also describes the biomass technologies, resource base and power generation potential along with utilization status in Pakistan. It also discusses possible role of biomass power in mitigating the energy crisis especially in the rural areas. Using only 20-25% of the estimated crops waste of major crops and 50% of animal’s waste Pakistan can generate more than 36,000 GWh equivalent to 45% of the electricity consumption per annum. The crops residue alone can produce 11953 MW (31%) of the power potential with 25% of the available crops residue.

scholarly journals RAM - Performance of Modern Gas Turbines

1996 ◽  
Author(s):  
Axel W. von Rappard ◽  
Heinz G. Neuhoff ◽  
Salvatore A. Della Villa
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Power Plants ◽  
Service Management ◽  
High Reliability ◽  
Evaluation Criteria ◽  
Heat Rate ◽  
Normal Operation ◽  
Communication Line ◽  
Road Map

Power and heat rate, and exhaust gas and noise emissions are commonly used to evaluate the performance of power generation equipment. Recently, reliability, availability and maintainability (RAM) are being widely adopted as more significant evaluation criteria for gas turbine power plants. All the criteria are used to evaluate new equipment and the measurements on previous installations are the basis for expected values. What differentiates RAM from the other three criteria is the duration of the measurements. Collecting and processing of RAM data is different since it needs to be collected during normal operation of the plant and over a long period of time. This means it is a coordinated effort of both partners; the customers and the manufacturers. This paper provides a summary of results over a period of four years with a review of the data and conclusions concerning the actual operation. It shows that gas turbine plants can be operated with high reliability and availability requirements. Outages can be reduced in both frequency and length, if the service management is based on the shared information of a worldwide RAM field data collection. A coordinated communication line is a prerequisite for sharing this information. The exchange of information is also mandatory if short reaction time for improvements is required. The planning for the implementation of the communication tools is presented in detail in terms of a ‘road map’ of this program.

Utilization of Agricultural Biomass in Small and Medium-Scale Biogas Plants in Rural Areas

2020 ◽  
pp. 401-420
Author(s):  
Vesna Parausic ◽  
Svetlana Roljević Nikolić
Keyword(s):  
Cost Effectiveness ◽  
Rural Areas ◽  
Power Plants ◽  
Energy System ◽  
Small Scale ◽  
Agricultural Biomass ◽  
Biogas Plants ◽  
Final Energy Consumption ◽  
Biomass Potential ◽  
Energy Community

Serbia is a member of the Energy Community and for integrating its energy sector into the EU energy system the national strategic documents define a more efficient use of energy and an increased share of renewable energy in gross final energy consumption. Serbia has a significant agricultural biomass potential. However, agricultural biomass is still insufficiently or even inefficiently exploited for energy purposes. The authors of this chapter analyse the possibilities of a more efficient use of agricultural biomass for the production of biogas and electricity in Serbia, map small scale and medium biogas power plants on the domestic market, assess their economic sustainability and cost-effectiveness, and provide recommendations to farmers and potential investors which are interested in investing in this area, in the aim of generating new employment in rural areas in Serbia.

The territory of the Russian Federation is a rescue from the COVID-19 coronavirus

2020 ◽  
pp. 26-29
Author(s):  
Yu. Kozlov ◽  
R. Serebryakov
Keyword(s):  
Wind Power ◽  
Rural Areas ◽  
Small Area ◽  
Power Plants ◽  
Air Spring ◽  
Atmospheric Air ◽  
Large Cities ◽  
Wind Power Plants ◽  
The World ◽  
The Russian Federation

A new coronavirus pandemic is raging all over the world, especially in densely populated areas. Unlike most countries, more than half of the territory of Russia is not used by humans — which means that it is possible to settle large cities to avoid crowding people on a small area. The authors of the article consider wind power, namely vortex wind power plants, as a new source of energy that can be quickly and with less harm built in rural areas. The article also discusses the possibilities of an alternative Autonomous non-volatile installation "Air spring" for obtaining fresh water from atmospheric air.

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