scholarly journals POSSIBILITIES FOR GROUND WATER USE FOR CONDITIONING OF THE FACULTY OF TECHNICS AND TECHNOLOGIES BUILDING IN YAMBOL

2018 ◽  
Vol 16 (2) ◽  
pp. 166-169
Author(s):  
Ivan Binev
Keyword(s):  
Energy Efficiency ◽  
Water Supply ◽  
Ground Water ◽  
Energy Saving ◽  
Heat Pump ◽  
Water Use ◽  
Pump System ◽  
Heat Pump System ◽  
Heat Demand ◽  
Selection Of

The purpose of the report is to analyze the possibilities for using heating energy for the building of the Faculty of Technics and Technology of Yambol at Trakia University of Stara Zagora, Bulgaria, provided by renewable sources. The selection of the water-water heat pump system is made after determining the heat demand for the building when applying the energy saving measures proposed in the energy efficiency audit. The possibilities for using groundwater for water supply were studied to heat the building.

Analysis of Energy Efficiency of Solar Energy/Air Source Compound Heat Pump System under Heating Condition

2011 ◽  
Vol 130-134 ◽  
pp. 1609-1612
Author(s):  
Bo Bo Hou ◽  
Zhi Gang Zhang ◽  
Wei Zhang
Keyword(s):  
Energy Efficiency ◽  
Data Analysis ◽  
Solar Energy ◽  
Energy Saving ◽  
Heat Pump ◽  
Saving Rate ◽  
Heating Condition ◽  
Efficiency Ratio ◽  
Pump System ◽  
Heat Pump System

Based on the test data analysis and processing which are acquired from a solar energy/air source compound heat pump system in the actual building, the seasonal energy efficiency ratio under the two modes and the energy-saving rate are obtained. Through the analysis of the energy-saving rate, the energy-saving characteristics of the solar energy/air source compound heat pump system under heating condition is discussed in detailed.

scholarly journals Design and Experimental Testing of a Ground Source Heat Pump System Based on Energy-Saving Solar Collector

2016 ◽  
Vol 142 (3) ◽  
pp. 04015022 ◽  
Author(s):  
Zhitao Zheng ◽  
Ying Xu ◽  
Jianghui Dong ◽  
Linfang Zhang ◽  
Liping Wang
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Solar Collector ◽  
Experimental Testing ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

Rational assessment and selection of air source heat pump system operating with CO2 and R407C for electric bus

2022 ◽  
Vol 182 ◽  
pp. 86-101
Author(s):  
Haidan Wang ◽  
Yulong Song ◽  
Yiyou Qiao ◽  
Shengbo Li ◽  
Feng Cao
Keyword(s):  
Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Air Source Heat Pump ◽  
Electric Bus ◽  
System Operating ◽  
Selection Of

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.

scholarly journals Field Test on Performance of an Air Source Heat Pump System Using Novel Gravity-Driven Radiators as Indoor Heating Terminal

2021 ◽  
Vol 9 ◽  
Author(s):  
Jie Jia ◽  
Xuan Zhou ◽  
Wei Feng ◽  
Yuanda Cheng ◽  
Qi Tian ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Heat Pump ◽  
Field Test ◽  
Thermal Response ◽  
Heat Output ◽  
Pump System ◽  
Heat Pump System ◽  
Air Source Heat Pump ◽  
Gravity Driven ◽  
Indoor Comfort

The simultaneous need for energy efficiency and indoor comfort may not be met by existing air source heat pump (ASHP) technology. The novelty of this study lies in the use of a new gravity-driven radiator as the indoor heating terminal of ASHPs, aiming to provide an acceptable indoor comfort with improved energy efficiency. To confirm and quantify the performance improvement due to the proposed system retrofit, a field test was conducted to examine the system performance under real conditions. In the tests, measurements were made on the refrigerant- and air-side of the system to characterize its operational characteristics. Results showed that the proposed radiator has a rapid thermal response, which ensures a fast heat output from the system. The proposed system can create a stable and uniform indoor environment with a measured air diffusion performance index of 80%. The energy efficiency of the proposed system was also assessed based on the test data. It was found that the system’s first law efficiency is 42.5% higher than the hydraulic-based ASHP system. In terms of the second law efficiency, the compressor contributes the most to the overall system exergy loss. The exergy efficiency of the proposed system increases with the outdoor temperature and varies between 35.02 and 38.93% in the test period. The research results and the analysis methodology reported in this study will be useful for promoting the technology in search of energy efficiency improvement in residential and commercial buildings.

scholarly journals Energy and economic analysis of an under-ground water source heat pump system for a historical valuable building

2017 ◽  
Vol 133 ◽  
pp. 171-182 ◽  
Author(s):  
Marco Noro ◽  
Renato M. Lazzarin ◽  
Andrea D’Ascanio
Keyword(s):  
Economic Analysis ◽  
Ground Water ◽  
Heat Pump ◽  
Water Source ◽  
Pump System ◽  
Heat Pump System

Effect of pipes in heat pump system on electric vehicle energy saving

2020 ◽  
Vol 17 (11) ◽  
pp. 666-675
Author(s):  
Ming Li ◽  
Song Cui ◽  
Haizhen Huang ◽  
Yan Jiang ◽  
Wangrui Wei
Keyword(s):  
Energy Saving ◽  
Electric Vehicle ◽  
Heat Pump ◽  
Pump System ◽  
Heat Pump System

Heat Pumps for Energy Saving of Building Hot Water Supply

2011 ◽  
Vol 347-353 ◽  
pp. 587-590
Author(s):  
Qing Hai Luo ◽  
Zheng Zuo
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Water Supply ◽  
Energy Saving ◽  
Heat Pump ◽  
Heat Pumps ◽  
Hot Water ◽  
Low Energy ◽  
Water Heaters ◽  
Hot Water Supply

This paper analyzes the energy consumption of hot water supply in buildings and the insurmountable shortcoming of low energy efficiency of conventional water heaters, and investigates the progress and problems of developing heat pump water heaters. It is pointed out that developing of heat pump water heaters is one of the efficient approaches to improve the energy efficiency of hot water supply.

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