Research on Energy Efficiency Evaluation Algorithm Based on Database System

2013 ◽  
Vol 483 ◽  
pp. 214-218
Author(s):  
Hiu Jie Zhu ◽  
Hui Feng Gao ◽  
Chun Bo Wei ◽  
Zheng Yong Wang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Heat Pump ◽  
Evaluation System ◽  
Building Energy ◽  
Database System ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

With the rapid development of urbanization,the building energy use increases rapidly, in order to guarantee the sustainable development of our country road, energy saving, low carbon, emission reduction work has become an urgent issue.Building energy consumption database is an important part of the construction of energy-saving work, In this paper, the aim is to establish the large-scale public building energy consumption database system in northeast cold area of , mainly introduced the database development tools, the choice of object oriented programming method , the system design process,treating the ground source heat pump system as the research object, this paper have had research and analysis on applicability of ground source heat pump system and established the evaluation system.

An Office Building Energy-Saving Design of Ground Source Heat Pump System

2013 ◽  
Vol 353-356 ◽  
pp. 3093-3096 ◽  
Author(s):  
Wei Yu ◽  
Chun Ying Zhu ◽  
Meng Hui Gao
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Building Energy ◽  
Office Building ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Air Conditioning System ◽  
Heat Pump System ◽  
Ground Source ◽  
Building Energy Saving

This article on heating and air conditioning system design of an office building in Langfang city, Hebei province. According to the owners of energy saving and environmental protection requirements and the actual situation, owners of ground source heat pump system. The design from the comprehensive analysis of both the initial investment and operating costs, to offer the choice of reference.

scholarly journals Intelligent Calculation Model and Algorithm Optimization of Optimal Operation of Integrated Energy System

2021 ◽  
Vol 2083 (3) ◽  
pp. 032033
Author(s):  
Kun Wang ◽  
Guochao Yang ◽  
Baohua Cheng ◽  
Zhiyong Gan ◽  
Yan Qi ◽  
...  
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Energy System ◽  
Calculation Model ◽  
Optimal Operation ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Saving Effect

Abstract This paper analyzes the energy saving effect and optimal operation of the integrated park type energy system. The park type integrated energy system includes photovoltaic power generation system, ground source heat pump system, solar air conditioning system, regenerative electric boiler system and solar hot water system and so on. The energy saving benefit calculation model of each subsystem is established, and according to the operation history data of each subsystem, the calculation results of each subsystem are analyzed. It shows that: The energy saving income of photovoltaic power generation system is 734,200 yuan/year. The main revenue comes from the second and third quarters, during which it should pay attention to the maintenance of photovoltaic modules to ensure the maximum energy saving benefit. The energy saving income of ground source heat pump system in summer is 155,900 yuan/year, and the energy saving effect is not significant. It can cooperate with traditional units for cooling in summer. The heating in winter in the park is provided by ground source heat pump system, regenerative electric boiler system and solar energy air conditioning system. Its energy saving benefit is 3.995 million yuan/year which is the main source of energy saving income in the park, with remarkable energy saving effect.

Ground Source Heat Pump and Conventional Heat Sources to Match the Design and Operation Mode for Energy Saving

2013 ◽  
Vol 648 ◽  
pp. 189-193
Author(s):  
Chun Yu Ran ◽  
Li Yun Zhang
Keyword(s):  
Renewable Energy ◽  
Energy Saving ◽  
Heat Pump ◽  
Environmental Benefits ◽  
Energy Utilization ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Electric Boiler

According to China's current energy present situation, the use of renewable energy, saving energy and reducing consumption has become the energy industry development should follow the basic principles. Electric boiler-ground source heat pump system as one kind of building energy saving technology, mainly in soil source heat pump renewable energy utilization. In this paper the boilers and soil source heat pump matching design and operation model research, from energy efficiency, economic and technical analysis, environmental benefit analysis into consideration, and concludes that the electric boiler-ground source heat pump system has the obvious energy saving and environmental benefits.

Analysis of Energy and Environmental Benefits about Ground-Source Heat Pump under Heating Conditions in Wuhan Region

2012 ◽  
Vol 608-609 ◽  
pp. 974-978
Author(s):  
Xian Fang Hu ◽  
Yu Yun Li ◽  
Yong Ma ◽  
Gui Hua Hu ◽  
Qian Tang
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Payback Period ◽  
Environmental Benefits ◽  
Saving Rate ◽  
Ground Source Heat Pump ◽  
Heating Season ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

Based on the heating season testing of ground-source heat pump system (GSHP) in Wuhan, the article discussed the energy efficiency ratio of ground-source heat pump system under the heating conditions. By comparison with conventional chillers & coal-fired boiler system, the system energy savings, environmental benefits and incremental payback period are analysized. There comes to the conclusion that the energy saving rate of the heating season is about 19.74% higher than that of the cooling season, reducing 18.35 kg carbon dioxide emissions, 0.15kg of sulfur dioxide and 0.0743 kg of dust per unit construction area each year. Also this article concludes the annual energy saving rate of ground-source heat pump system equals to that of water-source heat pump, with the payback period 22% longer and the cost-effective ratio 32% higher.

scholarly journals Establishment of Evaluation Model for Shallow Geothermal Energy Resource Development Potential Based on Characteristic of Geotemperature

2020 ◽  
Vol 24 (3) ◽  
pp. 317-325
Author(s):  
Jikun Hou ◽  
Xingqi Luo ◽  
Lei Zhang
Keyword(s):  
Heat Pump ◽  
Geothermal Energy ◽  
Evaluation System ◽  
Evaluation Model ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Shallow Geothermal Energy ◽  
Groundwater Source

The potential analysis of geothermal energy based on geothermal characteristics requires research of the regional shallow geothermal energy. Then, an evaluation model can be constructed. Taking Weinan City as an example, this paper studied the depth and temperature characteristics of the constant zone of subsurface temperature, the vertical variation characteristic of geotemperature, and the horizontal distribution characteristic of geotemperature in Weinan City. Based on the analysis of geotemperature characteristic, the analytic hierarchy process was used to construct the zoning evaluation system of the suitability of ground source, groundwater source, and surface water source. Then, the suitability of Weinan city was comprehensively zoned by the zoning evaluation system. The heat capacity and heat-exchange power of the heat pump system at the groundwater source were calculated based on the zoning results, and the heat-exchange power of the ground-coupled heat pump was obtained. According to the evaluation index, the development potential of shallow geothermal energy resources was evaluated. Through the experimental analysis, applying the model in this paper, it can be seen that the heat pump system has great potential for heating in winter and cooling in summer. The area is 50.79 km2. The area of the potential middle region of the buried pipe heat pump is 135.74 km2, and the potential of the ground source heat pump system is low. The potential area of the ground source heat pump is 82.14 km2. Upon comparing the model results with the current results, it was found that the consistency between the two is high.

Effect of a Cumulative Cold and Heat Load Ratio on Hybrid Ground-Source Heat Pump System Performance Parameters

2015 ◽  
Vol 1092-1093 ◽  
pp. 26-35
Author(s):  
Jun Jie Zhang ◽  
Ling Hong Xu ◽  
Heng Min ◽  
Ling Yun Wang
Keyword(s):  
Energy Consumption ◽  
Heat Pump ◽  
Heat Load ◽  
Specific Energy Consumption ◽  
Load Ratio ◽  
Ground Source Heat Pump ◽  
Performance Parameters ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

The imbalance in cold and heat load in large public buildings located in a cooling-dominated areas is apparent. To explore the effect of a cumulative cold and heat load ratio (CCHLR) on the performance parameters of the hybrid ground-source heat pump system (HGSHPS) of large public buildings, this study selects a Wuhan office building as the simulation object. When this model is considered as the prototype, five other building models whose CCHLR interval is relatively uniform can be developed. The full-year dynamic loads of the six models were calculated with Designer’s Simulation Toolkits. The 20-year simulation of the six HGSHPS models was conducted with TRNSYS. Then, the performance parameters of the HGSHPS model under different CCHLR values were studied and compared. These parameters included the average soil temperature, exiting fluid temperature (ExFT) of the ground heat exchanger (GHE), average energy efficiency ratio, and specific energy consumption (the electrical energy required to obtain per kilowatt cooling or heating capacity) of the heat pump system. Simulation results indicated that with the increase in CCHLR, the average soil temperature rapidly increases, the ExFT of the GHE increases to a value that is considerably higher than the suggested standard, and the specific energy consumption of the system increases.

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