Energy Efficiency Of Pump Research Articles

Hydraulic Design and CFD-Based Parametric Study for Optimizing Centrifugal Pump Impeller Performance

Centrifugal pumps are extensively utilized across various industries, including water supply, agriculture, and energy, where they consume significant amounts of electricity. As demands for energy efficiency and reduced operating costs increase, enhancing pump efficiency has become crucial. This study focuses on optimizing the pump impeller geometry, which plays a vital role in minimizing energy losses. A hydraulic and hydrodynamic model was developed, alongside a parametric study based on numerical simulations (CFD), to analyze the influence of geometric parameters—specifically the angles and shapes of the blade’s inlet and outlet edges—on energy losses and hydraulic efficiency. The study utilized experimental data provided by the manufacturer for model verification. The results revealed that Ivanovsky’s method displayed deviations in the blade width at the leading edge and trailing edge of 25% and 43%, respectively, while Spiridonov’s method indicated deviations of 13% in the outer diameter D2 and 27.5% in the blade width at the trailing edge. In contrast, the combined method proposed by the authors achieved high accuracy, with deviations under 9%. Additionally, parametric analysis identified two key parameters affecting the pump efficiency: the angle of the trailing edge and its shape. These findings underscore the necessity of optimizing the blade geometry to enhance the performance and energy efficiency of centrifugal pumps.

Experimental study on the characteristics of frost formation and defrosting water retention between vertical double surfaces with different wettability

Frost formation and defrosting water retention directly affect the heat transfer process of outdoor finned tube heat exchanger, which in turn influences the energy efficiency of air source heat pumps for building heating. Three typical wettability surfaces were prepared, including a bare copper hydrophilic surface (BCS), a hydrophobic copper surface (HCS) and a superhydrophobic copper surface (SHCS). The above three surfaces are combined in pairs to construct three different wettability combinations, which are Combination 1: HCS-BCS, Combination 2: BCS-SHCS and Combination 3: HCS-SHCS, respectively. Frosting-defrosting experiments between vertical double surfaces are carried out on the above combinations. The results illustrated that the combinations with SHCS exhibit excellent frost inhibition properties. Compared with Combination 1, the channel filling rate of Combination 2 and Combination 3 were reduced by 16.79 % and 30.09 % respectively at a frosting time of 60 min. The defrosting time of the combination is determined by the slower defrosting of the two surfaces. Compared with Combination 2, the defrosting rate of Combination 3 is improved by up to about 12.93 %. Avoiding the formation of large-sized liquid films and droplets or utilizing the “absorption” phenomenon caused by wettability differences between surfaces are important measures to reduce the possibility of bridge formation during the defrosting process. And the greater the wettability difference, the more obvious the “absorption” phenomenon became. Spherical droplets on the SHCS can be completely absorbed by the liquid film on BCS under the action of differential surface tension. Neither Combination 2 nor Combination 3 formed a liquid bridge at a surface spacing of 2 mm. The research will provide theoretical support for the selection of fin spacing and fin coating type under different working conditions in practical engineering.

Performance analysis of PEMFC-assisted renewable energy source heat pumps as a novel active system for plus energy buildings

The adoption of plus energy buildings (PEBs) has been considered extensively in various nations for carbon neutralization. However, studies on suitable active systems that can efficiently supply heating, cooling, and electrical energy to PEBs are lacking. This study proposes PEMFC-assisted renewable energy source heat pumps (PEMFC-RSHPs) as active systems for plus energy buildings. In the steady-state simulations using TRNSYS, the waste-heat recovery effect was investigated at various current densities and PEMFC temperatures. In the transient simulations, the seasonal operating characteristics, energy, economic, and environmental performances of PEMFC-RSHPs using air, raw-water, and ground energy sources were analyzed. During the heating season, the maximum primary energy efficiency (PEF) of a PEMFC-assisted ground source heat pump (GSHP) was approximately 0.252 at an optimal current density of 0.8 A cm−2. However, during the cooling season, the PEMFC-assisted raw-water source heat pump (RWSHP) showed the highest PEF of 0.407 at an optimal current density of 0.7 A cm−2. In addition, the CO2 emissions of the PEMFC-GSHP using green hydrogen were 54.3% lower than those using gray hydrogen, although the economic feasibility was still challenging. In conclusion, the PEMFC-GSHP using green hydrogen is the most feasible active system for PEBs.

Experimental Studies and Performance Characteristics Analysis of a Variable-Volume Heat Pump in a Ventilation System

Air-to-air heat pumps are used in today’s ventilation systems increasingly often as they provide heating and cooling for buildings. The energy transformation modes of these units are subject to constant change due to the varying outdoor air state, including temperature and humidity. When choosing how to operate and control energy transformers, it is important to be able to adapt effectively to the changing outside air conditions. Nowadays, modern commercial heat pumps offer two levels of control flexibility: a compressor with a variable speed and an electronic expansion valve. This combination of control elements has boosted the seasonal energy efficiency of heat pumps. For a long time, cycle control possibilities have been dominated by electronic controls. The authors of this paper aim to present an additional element to the traditional heat pump controls, which provides a third level of control over the cycle. To achieve the objective, experimental investigations of a heat pump integrated into a ventilation unit have been carried out under real-life conditions. The experiments involved varying the operating modes of the unit by adjusting the compressor speed, the position of the expansion valve, and the volume of the system loop. The study examined the performance characteristics of the heat pump and found that the performance of a variable-volume heat pump is comparable to that of a conventionally operated typical constant-volume heat pump system. In addition, the study found that by adding a third level of volume control to the active heating circuit, in combination with conventional controls, the heat pump’s heat output range could be extended by 69.62%. The study determined the variation of the heat pump cycle in the p-h diagram with the variation of the loop volume. The benefits and drawbacks of a heat pump with a variable-volume loop are discussed in this study.

Local entropy generation optimization and thermodynamic irreversibility analysis of oval-shaped coaxial ground heat exchangers: A detailed numerical investigation

Optimizing the heat transfer and thermodynamic efficiency of Ground Heat Exchangers (GHE) is crucial for maximizing the energy efficiency of Ground-coupled Heat Pump (GCHP) systems utilized in building heating and cooling applications. This study pioneers an effective approach of both the first and second laws of thermodynamics of the newly oval-shaped coaxial GHEs (oval-CGHEs), assessing heat transfer, thermohydraulic performance, and local entropy generation rate to explore the optimum design and operational conditions for heat exchange maximization and entropy generation minimization. Utilizing a three-dimensional numerical model validated by experimental results, this study examines the trade-offs between heat transfer improvements and entropy generation rate intensification of the oval-CGHEs in comparison to the typical circular-shaped CGHE (circle-CGHE) further than exploring the effect of key operational and design parameters and performing sensitivity analysis. The results reveal that oval-CGHEs exhibit higher irreversibility as a penalty for their superior heat transfer capabilities compared to traditional circular-shaped CGHEs (circle-CGHE), which can be mitigated by optimizing the position of the inner tube. Moreover, the study underscores the criticality of maintaining a balance between enhanced heat transfer and the associated rise in irreversibility, particularly concerning the factors of mass flow rates and installation depths.

Cooling and heating innovations: exploring the diverse applications of heat pumps

Heat pumps are versatile and energy efficient devices that play a crucial role in modern heating, cooling, and refrigeration applications. This paper provides a concise overview of the diverse applications and benefits of heat pumps across residential, commercial, industrial, and transportation sectors. The paper discusses the principles of heat pump operation, emphasizing their capability to transfer heat from one location to another using thermodynamic processes. The work highlights key applications such as residential heating, ventilation, and air conditioning systems, commercial refrigeration, hot water heating, process cooling, and renewable energy integration. The energy efficiency and environmental benefits of heat pumps are also emphasized, showcasing their potential to reduce carbon emissions and contribute to sustainable energy practices. By understanding the broad scope of heat pump applications outlined in this work, researchers, engineers, policymakers, and industry stakeholders can gain insights into the significance of heat pump technology in advancing energy efficiency and addressing climate change challenges.

Real-time monitoring and optimization of a large-scale heat pump prone to fouling - towards a digital twin framework

Large-scale heat pumps are a promising technology for the decarbonisation of heat supplied in buildings and industries, provided they operate as expected. However, common faults like fouling and unplanned downtime periods can significantly affect their performance and availability. This could limit the widespread adoption of large-scale heat pumps over other heating technologies such as gas and electric boilers. Approaches described in the literature to optimize the operation of large-scale heat pumps often lack validation under real-world conditions and do not account for performance degradation due to faults. This work demonstrates a step towards utilizing digital twins to improve the energy performance of a commercial large-scale heat pump affected by fouling. A framework was proposed based on the real-time adaptation of digital twins, where a simulation model was calibrated online based on measurements from the heat pump in operation, which was then used for set point optimization. This enabled to determine optimal intermediate pressure set points in the heat pump operating under varying levels of fouling over time. The framework was tested on different periods of heat pump operation spread over ten calendar months. The results showed that the use of online calibration rather than a single calibration decreased performance estimation errors between 3 and 17 percentage points. Moreover, the set points determined by the online-calibrated model, along with a simpler polynomial model derived from it, showed improvements in the heat pump performance by up to 3%, depending on the level of fouling. The findings of this study demonstrated the potential to extend the proposed framework using digital twins to enhance the energy efficiency of large-scale heat pumps.

HEAT PUMPS AS AN ENERGY-EFFICIENT MEANS OF GRAIN DRYING

Large energy costs for the process of drying grain crops associated with the increase in the price of energy carriers pose the task of reducing the energy component to the developers. The presented article focuses on the development of measures to reduce energy costs for the grain drying process using heat pumps. The considered advantages of heat pumps indicate the possibility of using these units for drying grain crops. Especially noteworthy is the increase in energy efficiency of heat pumps due to the conversion of ambient heat with a low temperature potential into heat with a high temperature potential. Thus, heat pumps are characterized by the heat pump conversion factor, which indicates their efficiency. The presented schemes with a heat pump implement the drying process in convective dryers, in particular in chamber, tunnel, shaft and drum dryers. Different schemes of heat pumps can be used for different types of dryers. The use of alternative drying sources for grain drying, in particular solar energy in the heat pump system, dramatically increases the efficiency of this installation. Also presented is a comprehensive scheme for the utilization of spent coolant in heat exchangers, an economizer, and a heat pump, which comprehensively addresses the issue of coolant utilization in a chamber dryer. In the drum dryer, the utilization of the spent coolant in heat exchangers and a heat pump is provided, increasing the temperature of the drying agent at the entrance to the dryer. For drying plant raw materials in a two-zone tunnel dryer, a heat pump scheme with two temperature levels of the heat carrier was developed for drying the material at different temperatures in the dryer zones.

CO2 heat pump integrated thermal storage for domestic hot water in hotels

Gas/diesel-fired water heaters are widely used in Indian hotels to deliver domestic hot water at 45–50 °C. These are substantial fossil energy consumers and pollute the environment. A CO2 (natural refrigerant) heat pump integrated thermal storage unit is an energy-efficient and eco-friendly solution for meeting heating demands. In tropical ambient conditions like in India, the energy efficiency of such heat pumps can further be improved when the heat source is the chilled water used for air conditioning purposes of the same hotel, thereby reducing the load on existing chillers. However, studies on the design of the proposed system and assessment of its potential for hotel application in tropical climates are still scarce. This information assists energy engineers and hotel management in evaluating new buildings or refurbishments. This paper demonstrates a design strategy to retrofit the conventional system with the heat pump integrated thermal storage unit and assess its energy, economic, and environmental benefits for a typical Indian hotel. Four different heat pump configurations, simple and ejector-assisted transcritical CO2 systems with and without internal heat exchangers, are analyzed and compared. The ejector-assisted CO2 heat pump without IHX having the minimum heating capacity (operates all time) integrated with a thermal storage tank of maximum capacity is observed to be an economical combination. In Chennai, where the average annual water temperature is 28 °C, the operating cost of the proposed system is only 7 % of that of a diesel-fired water heater. Also, CO2 emissions are reduced by 80 %. Thus, the proposed system is seen as an efficient and clean alternative solution for providing hot water and free AC in hotels.

Performance prediction and optimization of hydrogenation feed pump based on particle swarm optimization – least squares support vector regression surrogate model

Due to high power consumption and low energy efficiency of the hydrogenation feed multistage pump, conducting structural optimization design and reducing energy losses for this pump is necessary. In this study, an optimization method based on the particle swarm optimization (PSO) algorithm and least squares support vector regression (LSSVR) surrogate model is proposed. The head and efficiency are taken as the optimization objectives of the multistage pump, and the optimization design of the two impellers is carried out. Through the optimization of the surrogate model, the head and efficiency of the multistage pump are increased by 3.99% and 2.91%, respectively. It is found that the optimized impeller has more stable flow characteristics than original impeller. Further, the entropy production method is introduced to analyze the energy loss of pump. The result shows that the pump optimized by PSO-LSSVR surrogate model can reduce 9% energy consumption under nominal flow rate. It is attributed to the inhibitory effect of the optimization scheme on the horseshoe vortex at leading edge and the wake vortex at trailing edge of impeller. This study provides a new idea for the optimization design of high efficiency and low energy consumption of multistage centrifugal pumps.

Assessing the Effectiveness of an Innovative Thermal Energy Storage System Installed in a Building in a Moderate Continental Climatic Zone

In the present work, the operating results from an innovative, renewable, energy-based space-heating and domestic hot water (DHW) system are shown. The system used solar thermal energy as its primary source and was assisted by a shallow geothermal application in order to accommodate the space-heating and DHW needs of a domestic building in Austria. The system incorporated phase-change materials (PCMs) in specially designed containers to function as heat-storage modules and provide an energy storage capability for both the space-heating and DHW subsystems. This system was designed, implemented, and tested under real operating conditions in a building for a period of one year. The operating and energy results for the system are demonstrated in this work. The system was compared with a conventional one, and a reduction in the primary energy consumption equal to 84.3% was achieved. The maintenance and operating costs of the system were reduced by 79.7% compared to the conventional system, thus significantly contributing to the NZEB target of the building. The newly proposed system, although presenting an increased operating complexity, utilizes an innovative self-learning control system that manages all of its operations. The combination of a solar thermal energy source with thermal energy storage increases the use of renewable energy by extending the capacity of the system beyond the solar hours and using excess solar energy for space-heating needs. The thermal energy storage unit also increases the energy and economic efficiency of the geothermal heat pump by operating it during the hours of a reduced electricity tariff and using the stored energy during hours of a high electricity demand. The cost for the installation of such a system is higher than a conventional one, but due to the significantly decreased operating costs, the pay-back period was calculated to be 8.7 years.

Этапы технического совершенствования центробежных насосов шахтного водоотлива

The article shows the timeliness of an in-depth analysis of changes in the main hydrodynamic parameters of centrifugal pumps for the main drainage of mines, depending on their depth and time history, as well as for processing plants of various technological processes. The requirements for the characteristics of drainage pumping equipment, determined by modern needs for mining in the conditions of technical and economic possibilities for mining, taking into account the geological features of the most accessible deposits explored and accepted for development are determined up by the authors. The aim of the research is to correlate dependencies of the operated centrifugal sectional pumps characteristics with the depths of mines, determined by the needs of mining operations for the extraction of minerals using the underground method. Research objectives are as follows: to establish the main historical stages of the technical development levels of centrifugal pumps for mine drainage and their relationship with the actual depths of mining operations; to propose design solutions to increase energy efficiency and hydrodynamic loading of centrifugal pumps using vortex methods to control the flow of flow into the pump impeller. As a result three main stages of technical improvement of centrifugal pumps for mine drainage over the past 80 years have been established. The criteria for assessing the level of technical excellence of centrifugal pumps for mine drainage in this study are their efficiency, which characterizes the energy efficiency and cost-effectiveness of the equipment, and the pressure coefficient, as an indicator for assessing the level of hydrodynamic loading of the impeller of a centrifugal pump. It has been established that there is a correlation between the pressure and efficiency coefficients depending on the depths of the mines of the corresponding historical period of time. Theoretical dependencies are constructed and the prospects for changes in the pressure coefficient and the effective action of centrifugal pumps in the next decade are shown to ensure their high energy efficiency given the current dynamics of development of mine construction. Correlation dependences between the efficiency coefficient, efficiency of centrifugal sectional pumps and the required height of mine drainage water lifting have been obtained. From the impeller designs analysis of the considered centrifugal sectional pumps, developed according to the theory of L. Euler, it follows that further increase of the stage head coefficient by classical methods has reached its limit and its further increase is possible only through the improvement of hydrodynamic processes with the use of vortex methods of flow control in the flow-hydraulic part of the pump. With the help of correlation equations the predicted values of head coefficients and efficiency are presented based on the analysis of required parameters of centrifugal sectional pumps determined by the dynamics of mine construction development.

Analyzing the impact of blade geometrical parameters on energy recovery and efficiency of centrifugal pump as turbine installed in the pressure-reducing station

Improving renewable energy efficiency has received great attention globally by increasing demand for energy supplies and air pollution issues. The Soft Pressure Regulation System (SPRS) as a potential technology provides the possibility of regulating pressure and energy recovery in pressure-reducing stations. Pump as Turbine (PAT) is a good choice for installation in Water Distribution Network (WDN) pipelines due to its availability and economic benefits, and it can play a key role in decreasing startup time and return on investment. In this paper, the performance of centrifugal PAT under WDN conditions has been numerically and experimentally evaluated, and simulation validation was performed, too. Analyzing the work conditions of the pressure reduction station shows that the hourly flow rate trend changes considerably based on end-user demand. A major portion of the SPRS's operation time occurs in off-design conditions of the PAT, and efficiency is drastically decreased considering the lack of flow control tools. The effect of blade inlet angle, blade warp angle, blade curvature, and change of these parameters simultaneously was investigated to increase the high-efficiency working range. Losses resulting from flow separation and formation of vortices are significantly decreased by simultaneous change of blade geometrical parameters in the range of design point and higher flow rates (Q ≥ 1.0QBEP). Since the highest frequency of flow rate based on statistical analysis occurs in this range, the total power generation of SPRS improves significantly. The PAT efficiency with the improved impeller at part-load condition (0.8QBEP), design condition (QBEP), and over-load condition (1.2QBEP) is improved by 0.83 %, 2.69 %, and 6.71 % in comparison with the original impeller, respectively.

Desempeño energético de un sistema de bomba de calor geotérmico acoplado a un invernadero

INTRODUCTION. The research focuses on designing and implementing a geothermal heat pump adapted to a 470 m2 greenhouse in the Andean region. OBJECTIVE. The goal is to maintain a temperature of 15 °C at night and 30 °C during the day, replacing conventional energy sources such as LPG and contributing to the sustainability and efficiency of food production in challenging climatic conditions. METHOD. We estimated the energy potential of solar and geothermal sources through precise measurements, which were compared to theoretical models. Subsequently, we calculated the appropriate size for the geothermal heat pump using the vapor compression cycle from the greenhouse's energy balance. Finally, we considered critical variables such as temperature and relative humidity to assess the energy efficiency of a geothermal heat pump. Prediction intervals were determined for the relevant variables to investigate values outside statistical control, and the construction of a heat map revealed heat transfer and thermal behavior in the greenhouse. RESULTS. The results demonstrated the impact of climatic conditions on the performance of the geothermal heat pump. Out of the 3169 analyzed data points, 7% fell outside the prediction intervals. CONCLUSIONS. This analysis underscores the critical influence of the environment on the energy efficiency of greenhouse cooling systems in the Andean region, suggesting the need for more efficient energy management strategies based on environmental conditions.

Investigation of the Concentric Heat Pump with Improved Energy Performance

This paper investigates the energy characteristics of the concentric heat pump. The heat exchanger of the evaporator of the "pipe in pipe" type, through the inner copper tube of which the refrigerant circulates, and inside the outer pipe - the coolant, is placed in a spiral around the compressor, cooling it and at the same time absorbing the heat released by it. The new design improves technical and economic performance. Experimental results were carried out, which confirm the possibility of maintaining the compressor temperature (80-90°C), increasing the heat output and conversion coefficient (COP) by an average of 10-15%. The proposed technical solution makes it possible to improve the energy efficiency of the concentric heat pump due to the absorption of the excess heat from the evaporator in the general heat flow and to reduce the emissions of CO2.

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Disc pumps have obvious advantages in dealing with difficult-to-pump media. Energy efficiency and sustainable energy management are important topics with regard to reducing costs and promoting carbon neutrality. Though the concept of the disc pump was proposed in the 1850s, development was slow and limited by its initial model. However, with the development of industries such as petrochemicals and food, the efficient pumping of difficult-to-pump media is much needed, but facing challenges. Therefore, research on energy-efficient disc pumps is particularly important moving forward. In this paper, the available information from the open literature about the research and development of the disc pump will be thoroughly reviewed. It focuses on the historical development, energy efficiency and physical model application of the disc pump. The review ends with a proposal for the direction of future development, and in this aspect, it is proposed that the energy efficiency prediction model based on velocity slip theory, the energy management system based on multi-scenarios and the design method based on energy conversion theory are important. The latest achievements in energy conversion are given. This review also provides a new perspective for the development of energy-efficient disc pumps.

Experimental study on operating characteristics and control strategy of CO2 heat pump in circulating heating mode

The CO2 heat pump is a promising low carbon technology for domestic hot water production due to its potential heating advantages and the natural properties of CO2. However, the change pattern of operational parameters, heating time, and energy efficiency of CO2 heat pump in circulating heating mode remains to be fully revealed. Meanwhile, the matching control strategies to improve the system performance have not been developed. Firstly, we experimentally revealed the operating characteristics of CO2 heat pump in circulating heating mode. Results demonstrated that it is quite challenging to simultaneously maintain the lower input power, shorter heating time, and higher coefficient of performance (COP) without taking control measures. It is found that the circulating heating process could be divided into stable and upward periods, depending on the water temperature at the inlet of gas cooler. The deterioration of the system performance appears during the upward period, where the instantaneous COP drops from 4.1 to 3.1. This is because input power rises, while the heating capacity drops as the water temperature at the inlet of gas cooler increases. Secondly, we experimentally developed a matching control strategy to improve the system performance during the upward period. The control method is the correlation of optimal electronic expansion valve opening, and the regulation frequency is regulating for 1 °C per rise of the water temperature at the inlet of gas cooler. As a result, the overall COP increased by 3.71%, and the overall input power reduced by 3.74% while the heating time remained constant.

Study on Heating Energy Efficiency and Optimization of Solar-air Source Heat Pump

This paper studies the heating energy efficiency and optimization of a solar-air source heat pump (SASHP). Through system simulation, the energy efficiency of the SASHP is compared with other heating methods. The results show that SASHP has higher energy efficiency. We also found that in the SASHP, the air source heat pump (ASHP) is involved in heating 46% of the time. Therefore, we suggest optimizing the energy consumption of the ASHP to improve the system’s energy efficiency. In addition, lowering the supply water temperature can also reduce the system’s heating energy consumption. When the supply water temperature is lowered from 60°C to 48°C, the COP is increased from 1.98 to 2.83, which is a 31% improvement. Our research provides theoretical support for the application of SASHP and provides new ideas for achieving green and low-carbon heating.

Performance evaluation of a novel humidification-dehumidification desalination system operated by a heat pump

Decentralized and small-scale desalination technologies can effectively address the limitations associated with large-scale desalination systems and contribute to solving the issue of fresh water scarcity. However, low energy efficiency remains a primary obstacle in their widespread application. To tackle this challenge, this paper introduces a novel heat pump humidification-dehumidification desalination system, in which humid air from the dehumidifier enters the heat regenerator and heat pump evaporator in sequence, enabling deep dehumidification. Subsequently, the cold air is reheated by the heat regenerator and subcooler before entering the humidifier. This sequential process can increase not only the energy efficiency of heat pump but also the fresh water productivity. Models are proposed and calculated for the theoretical evaluation of the novel system. Firstly, heat pump design parameters are optimized. Subsequently, performances of the novel system under different operation conditions are compared with those of the conventional system. The results indicate that optimizing heat pump system design parameters can significantly improve system performance. When compared to the conventional system, the novel system exhibits significant improvements. It achieves a maximum fresh water productivity of 39.73kg/h, representing an increase of 12.83%, and a maximum gain output ratio of 6.52, which is 13.39% higher. The lowest fresh water production cost is 9.52 $/m3, also a reduction of 5.15%. Additionally, both the novel and conventional systems possess optimal feed temperature and mass flow rate ratio. At last, the optimal performances of the novel system are compared with the reported results, which further validates the thermodynamic and economic advantages of the novel system.

Research and Application of Shallow Geothermal Energy Development and Utilization in Shandong Province.

Shallow geothermal energy reserves are abundant and widely distributed in Shandong Province. Vigorously developing and utilizing shallow geothermal energy will play a significant role in improving energy pressure in Shandong Province. The energy efficiency of ground source heat pumps is closely related to geological and other conditions. However, few studies on geothermal exploitation and utilization have been affected by economic policies. This article will investigate the operation of shallow geothermal engineering in Shandong Province, summarize the current number of operating projects, calculate the engineering annual comprehensive performance coefficient (ACOP), analyze the size characteristics of different cities, and analyze their correlation with economy and policy. Through research, it is found that the number of shallow geothermal energy development and utilization is significantly positively correlated with socioeconomic level and policy orientation, and has a relatively small relationship with ACOP. The research results provide a basis and suggestions for improving and optimizing the energy efficiency coefficient of geothermal heat pumps and promoting the development and utilization of shallow geothermal.