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Articoli di riviste sul tema "Heat pump installation"

Autore: Grafiati

Pubblicato: 4 maggio 2022

Ultima modifica: 26 luglio 2025

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1

Høeg, Arne, and Tor-Martin Tveit. "Low to very high temperature thermal energy recycling – 3 case studies." E3S Web of Conferences 313 (2021): 09001. http://dx.doi.org/10.1051/e3sconf/202131309001.

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In this paper we present three case studies of the installation of a stirling-cycle high temperature heat pump applied to recycling thermal energy including steam generation. Many industries have heat demand at temperatures above 100°C and often the preferred energy carrier is steam. The optimal integration of a heat pump can be determined by investigating the thermal need of the process with pinch technology. For many industries, the pinch temperature is too high for conventional heat pumps. We present a heat pump solution that can recycle thermal energy and deliver this to a heat source up t

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2

Il'ina, T., P. Orlov, N. Savvin, and Y. Elistratova. "THE ECONOMIC ASPECT OF THE SCALE-FORMING DIGNOSTICS LAYERS IN PLATE HEAT EXCHANGERS." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 9, no. 4 (2024): 36–44. http://dx.doi.org/10.34031/2071-7318-2024-9-4-36-44.

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Heat pump installations and the possibility of their application in engineering systems are considered. This allows expanding significantly the possibilities of using renewable energy sources, as well as waste heat from various technological processes in engineering systems for creating a microclimate. Air heat pumps are the most promising, but their use in regions with a cold climate is limited due to condensation of moisture vapors on the cooling line of the evaporation unit with subsequent formation of ice, which reduces the efficiency of the installation. In this paper, an upgraded evapora

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3

Novikov, Andrey A., and Irina G. Ershova. "Experimental Installation at the Water-Ice Phase Transition." Elektrotekhnologii i elektrooborudovanie v APK 67, no. 2 (2020): 21–26. http://dx.doi.org/10.22314/2658-4859-2020-67-2-21-26.

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The article reviewes the specifics of electricity production in Russia. One of the most effective energy saving methods is the use of heat pump installations. Its main property is the ability to extract heat from the environment: soil, water, reservoirs, the surrounding air, and the sun. Existing heat pumps with a water-ice phase transition are not efficient enough and have a high installation cost due to its complexity. (Research purpose) The research purpose is in determining the parameters and operating modes of the experimental installation at the water-ice phase transition. (Materials and

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4

Liu, Hao, Hongyi Zhang, and Saqib Javed. "Long-Term Performance Measurement and Analysis of a Small-Scale Ground Source Heat Pump System." Energies 13, no. 17 (2020): 4527. http://dx.doi.org/10.3390/en13174527.

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Recent data suggest that heat pumps, despite having the potential to cover over 90% of the global space and water heating demands, only provide less than 5% of global heating. Heat pumps, in general, and ground source heat pumps, specifically, offer significant potential for energy savings and carbon emissions reduction in buildings. The realization of these potential benefits, however, requires proper design, installation, and operation of the entire heat pump system. This paper presents the performance analysis of a Swedish ground source heat pump system providing space heating and hot water

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5

Frik, Anton, and Juozas Bielskus. "EXPERIMENTAL TEST STAND OF A HEAT PUMP INTEGRATED IN AIR HANDLING UNIT." Mokslas - Lietuvos ateitis 12 (September 22, 2020): 1–6. http://dx.doi.org/10.3846/mla.2020.13075.

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Heat pumps are becoming increasingly popular and are playing an important role in the heat and cooling supply chain of buildings sector. Although more than 160 years have passed since the manufacture of the first heat pump, this technology, designed to recover lowpotential heat energy and its useful use, can be called an innovative and efficient energy transformer. Airtowater and airtoair heat pumps are becoming more popular today due to their installation cost compared to groundtowater heat pumps. It has been noticed that recently airtoair heat pumps are more often installed in moder

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6

Kwag, Byung C., and Moncef Krarti. "Development of design guidelines for thermo-active foundations." Indoor and Built Environment 27, no. 6 (2017): 805–17. http://dx.doi.org/10.1177/1420326x17690018.

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Ground medium can be utilized as a direct energy source to heat and cool buildings. In particular, ground source heat pump systems take advantage of the year-round mild deep earth temperature without a significant reliance on any external energy sources. However, the high installation cost of ground source heat pumps associated with high drilling cost of vertical boreholes often make these systems less cost-effective compared to conventional heating and cooling systems. Thermo-active foundations can be a viable solution to reduce ground source heat pump high installation costs by embedding hea

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7

Denysova, Alla E., and Pavel A. Ivanov. "Modeling of thermal processes in vertical heat exchangers of ground-source heat pump." Herald of Advanced Information Technology 6, no. 4 (2023): 352–62. http://dx.doi.org/10.15276/hait.06.2023.23.

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The basic directions for perfection heat supply systems are the tendency of transition to the low-temperature heating systems based at application heat pump installations. We consider heat supply systems with ground-source heat pump. The paper considers modeling the efficiency of ground-source heat pumps with the account of Ukrainian climate conditions. The paper presents the energy performance criteria which show the way to rational implementation of ground-source heat pumps for heating. A computational model based at non-stationary heat exchange processes in elements of ground-source heat pu

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8

Kotov, Boris, Vladimir Grishchenko, Yuriy Pantsir, and Igor Garasimchuk. "MATHEMATICAL MODELING OF TECHNOLOGICAL MODES OF HEAT-PUMPING SYSTEMS FOR TECHNOLOGICAL PROCESSES." Vibrations in engineering and technology, no. 2(101) (June 29, 2021): 85–91. http://dx.doi.org/10.37128/2306-8744-2021-2-9.

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One of the ways to increase the energy efficiency of the process of heat supply of technological facilities and production facilities of the agro-industrial complex is the use of heat pumps. Their use allows to increase the energy potential of heat carriers. To optimize the mode parameters and create systems for automatic control of the heat pump installation, it is necessary to establish a relationship between the parameters of the processes occurring in the elements of the installation by creating a mathematical model of non-stationary thermal modes. In the analysis of recent studies and pub

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9

Gradziuk, Piotr, Aleksandra Siudek, Anna M. Klepacka, Wojciech J. Florkowski, Anna Trocewicz, and Iryna Skorokhod. "Heat Pump Installation in Public Buildings: Savings and Environmental Benefits in Underserved Rural Areas." Energies 15, no. 21 (2022): 7903. http://dx.doi.org/10.3390/en15217903.

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Heat pump technology offers a path towards reducing the use of fossil fuels to heat space, providing energy bill savings and reducing air pollution and GHG emissions. The choice of heating method is based on costs; hence, this study examines the gains from operating heat pump systems in public buildings as well as alternative systems using electricity, LPG, and heating oil. The study focuses on the Ruda-Huta municipality in Poland that, as is common in rural areas, lacks access to a district heating system or piped gas. The empirical analysis includes heat pump installations in eight municipal

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10

Capone, Martina, Elisa Guelpa, and Vittorio Verda. "Optimal Installation of Heat Pumps in Large District Heating Networks." Energies 16, no. 3 (2023): 1448. http://dx.doi.org/10.3390/en16031448.

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Power-to-heat technology represents a promising solution for the decarbonization of the energy sector. The installation of large-scale heat pumps within district heating systems is widely recognized to be a cost-effective and competitive way to provide flexibility to the electric system, enhancing the use of intermittent renewable energy sources. The goal of this paper is to show how the economic and environmental benefits provided by the installation of a large-scale heat pump in existing district heating systems vary according to the installation location in different scenarios. To do that,

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11

Ozdarski, Wojciech Tomasz, Mirosława Witkowska-Dąbrowska, and Ilisio Manuel De Jesus. "Feasibility Study of the Use of Renewable Energy Sources in Households." Olsztyn Economic Journal 16, no. 2 (2021): 251–62. http://dx.doi.org/10.31648/oej.8153.

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The present study presents an estimation of the effectiveness of photovoltaic panels and a heat pump installation. The objective of the research was to evaluate the economic feasibility of investing in combined systems relying on renewable energy sources. The research results corroborated the first hypothesis, namely that the use of photovoltaic panels fully supplies the energy needs of the heat pump installed in the household. The other hypothesis, however, was not supported; namely that a combined investment in photovoltaic panels and a heat pumps will pay back in a period shorter than the h

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12

Di Schio, Eugenia Rossi, Vincenzo Ballerini, and Paolo Valdiserri. "The Bin Method to Investigate the Effect of Climate Conditions on the SCOP of Air Source Heat Pumps: the Italian Case." WSEAS TRANSACTIONS ON HEAT AND MASS TRANSFER 17 (May 7, 2022): 124–30. http://dx.doi.org/10.37394/232012.2022.17.13.

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The paper investigates the seasonal performances of electric air-to-water heat pumps specifically related to climatic conditions of the place where the heat pump is installed. The analysis is carried out using easily available weather data for some Italian towns differently located, and using the bin-method proposed by UNI/TS 11300-4. Two different types of heat pumps (on-off and inverter-driven variable speed compressor) are considered and comparisons between different types of heat pumps and different places of installation are performed. The analysis shows that the climate of the installati

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13

Макаров, Артем Русланович, Сергей Васильевич Григорьев, Анастасия Сергеевна Волох, and Александр Иванович Кузин. "APPLICATION OF A JET HYDRODYNAMIC PUMP IN THE CAVITATION REACTOR OF A HEAT GENERATING PLANT AND SIMULATION OF FLUID FLOW IN IT." Housing and utilities infrastructure, no. 1(20) (March 14, 2022): 59–71. http://dx.doi.org/10.36622/vstu.2022.19.46.006.

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Представлено описание принципиальной схемы теплогенерирующей установки с применением струйного гидродинамического насоса, используемой в качестве источника тепла в системе отопления. Сформулированы основные преимущества использования теплогенерирующей установки со струйным гидродинамическим насосом. Рассмотрена имитационная модель каналов теплогенерирующей установки. Выполнены проектировочные расчеты различных вариантов каналов теплогенерирующих элементов. Полученные результаты позволяют сделать вывод о перспективности использования данных установок и дальнейшего их внедрения. The article pres

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14

Fahlén, Per, Hendrik Voll, and Jüri Naumov. "EFFICIENCY OF PUMP OPERATION IN HYDRONIC HEATING AND COOLING SYSTEMS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 12, no. 1 (2006): 57–62. http://dx.doi.org/10.3846/13923730.2006.9636373.

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Developments in pump technology provide new possibilities of improving both the efficiency and the quality of control of hydronic heating and cooling systems. Improved pump efficiency and direct flow control can substantially reduce the drive power to circulation pumps. Measurements show that a simple VSD (variable speed drive) does not unduly degrade the efficiency of commonly used pumps. An example from a residential heat pump installation indicates possible savings of around 30 % of the total drive energy to the heat pump. Another example illustrates how direct flow control can simplify sys

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15

Gupta, Rajat, and Sahar Zahiri. "Examining daily electricity demand and indoor temperature profiles in UK social housing flats retrofitted with heat pumps." IOP Conference Series: Earth and Environmental Science 1363, no. 1 (2024): 012093. http://dx.doi.org/10.1088/1755-1315/1363/1/012093.

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Abstract The UK Government has announced decarbonisation of domestic heating thorough low carbon heat pumps. This will result in the deployment of 5 million heat pumps by 2030, and over 25 million by 2050, thereby increasing seasonal and daily peak electricity demand and putting a strain on local electricity networks. Despite this, there is limited evidence on the impact of heat pump operation on daily electricity demand profiles. This paper empirically examines the impact of retrofitted ground source heat pump (GSHP) on daily electricity demand of six social housing flats co-located in a soci

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16

V. P. Markovskiy, S. D. Pushkaryov, A. I. Ogarkova, A. B. Utegulov, and I. V. Koshkin. "DEVELOPMENT OF A CONJUGATE ANALYSIS METHOD FOR THE EFFECTIVE USE OF HEAT PUMPS IN THE CLIMATIC CONDITIONS OF KOSTANAY REGION." Bulletin of Toraighyrov University. Energetics series, no. 2.2024 (June 28, 2024): 225–42. http://dx.doi.org/10.48081/qgdw8672.

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The article discusses the issues of effective use of heat pumps in the northern region of Kazakhstan, Kostanay region. The purpose of this article is to study the physical and technological characteristics of various types of refrigerants for the effective use of heat pumps in the climatic conditions of Northern Kazakhstan, using the «Water – Water» coolant system, taking into account the external and internal parameters of the system’s interaction. An analysis of the estimated climatic and soil characteristics of the Kostanay region was carried out, and priority methods for designing heat pum

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17

FINYK, Iryna. "FEATURES OF THE USE OF HEAT PUMPS IN THE HEATING SYSTEMS OF PRIVATE HOUSES." Herald of Khmelnytskyi National University. Technical sciences 311, no. 4 (2022): 14–17. http://dx.doi.org/10.31891/2307-5732-2022-311-4-14-17.

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In the paper, it is investigated that economics is the main advantage of thermal pumps. The financial costs during the heating season are almost three times lower than natural gas. You do not need any permissions to connect. The operation of heat pump units is absolutely safe and environmentally friendly. Since ancient times, heat pump units have been used as alternative heating systems. Such systems are reliable, have a long term of operation and are the most environmentally friendly. Heat pump units are seen as a new step toward the development of more efficient and safer systems. The main h

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18

Leitgeb, Wilhelm, and Siegfrie Schonwald. "Compressor arrangement for a heat pump installation." Journal of Heat Recovery Systems 6, no. 1 (1986): xiv. http://dx.doi.org/10.1016/0198-7593(86)90219-5.

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19

Hałaj, Elżbieta. "Finite element modeling of geothermal source of heat pump in long-term operation." E3S Web of Conferences 154 (2020): 04003. http://dx.doi.org/10.1051/e3sconf/202015404003.

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Heat pumps become more and more popular heat source. They can be an alternative choice for obsolete coal fired boilers which are emissive and not ecological. During heat pump installation designing process, especially for heat pumps with higher heating capacity (for example those suppling larger buildings), a simulation of heat balance of ground heat source must be provided. A 3D heat transport model and groundwater flow in the geothermal heat source for heat pump (GSHP) installation was developed in FEFLOW according to Finite Element Modelling Method. The model consists of 25 borehole heat ex

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20

Badinier, Thibault, Badr Ouzzine, Jean de Sauvage, and Philippe Reiffsteck. "Evaluation of heat pump efficiency within an energy pile group: effect of heat cluster, underground seepage and seasonal cycles." Soils and Rocks 48, no. 1 (2025): e2025004224. https://doi.org/10.28927/sr.2025.004224.

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Energy geostructures are a cost-effective solution for low enthalpy geothermal installations. Heat exchanger pipes are attached to the reinforcing cages of geotechnical structures to combine structural and geothermal roles. However, the installation of a group of multiple energy structures, such as a pile group, can lead to a heat cluster effect, which tends to decrease the efficiency of the heat pump (COP factor). This phenomenon is amplified by the number of grouped energy geostructures. However, energy geostructures are often installed in areas with groundwater flow. This induces a thermal

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21

Efimov, N. N., E. M. Dyakonov, V. V. Papin, R. V. Bezuglov, and A. I. Yanuchok. "A CASE STUDY COMPUTATIONAL ANALYSIS OF LITHIUM BROMIDE SOLUTION FOR HOUSEHOLD ABSORPTION HEAT TRANSFORMER." Bulletin of the South Ural State University series "Power Engineering" 22, no. 3 (2022): 90–99. http://dx.doi.org/10.14529/power220310.

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Steam compression installations operating from electric energy are widely used in the world for air conditioning. This type of installation has a number of disadvantages, and therefore a new air conditioning installation has been proposed. Ab-sorption heat transformer is an air conditioning and hot water installation based on the principle of an absorption heat pump. The installation can also be used for heating. The installation is able to use renewable energy sources or utilize the heat of exhaust gases as heat sources: for example, from a heating boiler with a temperature of up to 115 °C. T

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22

Hong-wen, Jin, Yang Lei, Song Bing-qi, Wu Yong-liang, and Zhang Yan-peng. "Study on the influence factors of energy efficiency ratio of low temperature air source heat pump." E3S Web of Conferences 165 (2020): 01030. http://dx.doi.org/10.1051/e3sconf/202016501030.

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In this paper, through the experimental study of two heating seasons, it is found that the heat pump installation position and orientation, circulating pump work/frequency conversion, frosting conditions, etc. have a greater impact on the heat pump unit energy efficiency ratio. According to the actual operation data and theoretical derivation, the analysis shows that the energy efficiency ratio increases by 2.4% when the installation position and orientation increase the air temperature by 1K. The circulating water pump can save 78% of the power consumption in the period by changing the power

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23

Kaczmarczyk, Michał, Magda Kaczmarczyk, Konrad Thürmer, and Magdalena Klich. "Interpretation of rock mass thermal conductivity at the design stage of heat pump installation and its impact on system efficiency (COP)." E3S Web of Conferences 66 (2018): 02007. http://dx.doi.org/10.1051/e3sconf/20186602007.

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The recognition of geological and thermal conditions of the rock mass in the case of designing a vertical borehole heat exchanger as the ground source for heat pump installations is a key issue affecting the efficiency of the heating/cooling system operation. This is especially important for large-sized buildings with a high demand for thermal power, which affects into the size of the ground source installation. The aim of the article is to indicate the difference in the obtained results concerning thermal calculations at the design stage of the brine/water heat pump installation with the vert

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PAZIUK, Vadym, Oleksii TOKARCHUK, and Serhii SHAPOVALIUK. "HEAT PUMPS AS AN ENERGY-EFFICIENT MEANS OF GRAIN DRYING." ENGINEERING, ENERGY, TRANSPORT AIC, no. 1(124) (April 22, 2024): 33–40. http://dx.doi.org/10.37128/2520-6168-2024-1-4.

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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 temperatu

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Oliinyk, Halyna. "Study of the efficiency of using a heat pump in the heat supply system of a private house." Scientific journal of the Ternopil national technical university 107, no. 3 (2022): 14–20. http://dx.doi.org/10.33108/visnyk_tntu2022.03.014.

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Currently, air-to-water heat pumps are in high demand, which, thanks to the high coefficient of heat conversion, reduce energy consumption and negative impact on the environment. The advantages of using a heat pump are safety, environmental friendliness, economy, and the fact that when using it, dependence on rising prices for natural energy sources is reduced. One of the main problems of the air-to-water heat pump is a decrease in productivity when the outside air temperature drops in winter. This paper analyzed the efficiency of air-to-water heat pump Mitsubishi Electric PUHZ-SHW230YKAR1 for

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Treshcheva, Milana, Dmitriy Treshchev, and Daria Pozdeeva. "Applying heat pumps to utilize municipal solid waste at St. Petersburg TPP." E3S Web of Conferences 140 (2019): 04002. http://dx.doi.org/10.1051/e3sconf/201914004002.

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In this article, we address an urgent problem of solid waste management. We consider the possibility of applying gasification technology for municipal solid waste disposal at existing TPPs in St. Petersburg in order to produce thermal and electric energy. St. Petersburg Northern TPP-21, facing the problem of undercooling of the circulating water in the cooling towers, is proposed as a possible placement site. Using this water as a source of low-grade heat of a heat pump installation is considered as the possible solution to the problem. The study was carried out by calculating the thermal circ

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Kuzmenko, A. M., K. B. Dikarev, Yev S. Shekhorkina, and M. P. Yablonska. "Rational installation choice of heat pump outer duct." Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture, no. 6 (December 6, 2020): 119–26. http://dx.doi.org/10.30838/j.bpsacea.2312.241120.119.706.

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Il'ina, T. N., P. A. Orlov, and A. O. Echina. "Efficiency of Operation of Air Heat Pumps with Evaporators of Various Designs." Proceedings of the Southwest State University 27, no. 2 (2023): 62–74. http://dx.doi.org/10.21869/2223-1560-2023-27-2-62-74.

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Resume. The development of the heat pump market ensures the growth of energy prices, the fight against global warming and the stimulation of the growth rates of countries in transition to "clean energy sources". the most environmentally friendly and energy efficient, taking into account the cost of their installation and the impact of air source heat pumps compared to geothermal ones. However, their use in countries with cold climates is limited by the formation of frost on the evaporator unit heat exchanger, which significantly increases their heating capacity and conversion efficiency.Purpos

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Rogoža, Artur, Giedrius Šiupšinskas, and Juozas Bielskus. "CASE ANALYSIS OF HEAT PUMP INTEGRATION IN DISTRICT HEATING SYSTEM." Mokslas - Lietuvos ateitis 13 (October 11, 2021): 1–6. http://dx.doi.org/10.3846/mla.2021.15272.

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The installation of heat pumps in district heating (DH) systems is one of the most promising technologies to increase the efficiency of heat supply by using renewable energy sources and reducing heat carrier temperatures in the networks. The possibilities of installing heat pumps in DH systems are very wide, but most often the main purpose of their application is to increase the temperature of the supplied heat carrier at the heat substations of individual consumers or their groups. This paper describes a study that analyzed the possibilities of integrating an individual heat pump at a heat su

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Kizurov, Anatoly. "Обеспечение независимого регулирования температур агентов нагрева и охлаждения бездроссельной теплонасосной установкой при дифференцированном подводе тепла в процессе сушки семян зерновых". АгроЭкоИнфо 7, Special (2021): 8. http://dx.doi.org/10.51419/20217008.

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To ensure the food security of the country, it is necessary to harvest grain seeds annually by agricultural producers. Drying is the most important, energy-intensive and time-consuming post-harvest stage in seed preparation. At present, convective drying with a constant heat supply is the most widespread on the territory of the Russian Federation. To intensify the convective drying process, it is preferable to use the differentiation of heat supply. In order to implement these measures, the possibility of using a heat pump installation of an original design, developed by scientists of the Fede

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Shin, Ji-Hyun, Yong-In Kim, and Young-Hum Cho. "Development of Operating Method of Multi-Geothermal Heat Pump Systems Using Variable Water Flow Rate Control and a COP Prediction Model Based on ANN." Energies 12, no. 20 (2019): 3894. http://dx.doi.org/10.3390/en12203894.

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As the global energy trend continues, the importance of energy savings and efficient use is being emphasized, and the installation and operation of geothermal heat pump systems is increasing. In many buildings, where an actual geothermal heat pump system has been installed, problems of efficiency deterioration occur frequently because of the inefficient operation after installation of the heat pump system. The purpose of this study was to develop and verify the operating method for energy saving and performance improvement of multiple geothermal systems. A coefficient of performance (COP) pred

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Niekurzak, Mariusz, Wojciech Lewicki, Wojciech Drożdż, and Paweł Miązek. "Measures for Assessing the Effectiveness of Investments for Electricity and Heat Generation from the Hybrid Cooperation of a Photovoltaic Installation with a Heat Pump on the Example of a Household." Energies 15, no. 16 (2022): 6089. http://dx.doi.org/10.3390/en15166089.

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In recent years, one of the key postulates in the European Union’s policy has become the development of renewable energy sources. In order to achieve the desired synergy effect, the idea of combining two selected sources of energy appeared. This article presents a technical and economic analysis of a hybrid connection of a ground source heat pump with a photovoltaic installation. Taking into account the heat demand of the building, a ground heat pump with a catalog nominal heating power of 25 kW was selected. This article presents the problem of the economic profitability of using a hybrid com

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Hallyyev, I., and K. H. Gilfanov. "Decreasing cost of heat pump heat supply systemby changing first circuit collector." Power engineering: research, equipment, technology 22, no. 1 (2020): 28–37. http://dx.doi.org/10.30724/1998-9903-2020-22-1-28-37.

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The aim of this work is to reduce the cost of the heat pump heating system by using a solar collector in the primary circuit of the heat pump. It is known that the price of material and installation of the primary circuit collector is 30% of the total cost of the heat pump heating system. The use of a solar collector in the primary circuit of a heat pump eliminates the need for drilling or underground installation of a low-potential thermal energy collector. The rejection of the classic types of collectors: horizontal collectors and vertical probes, also has a positive environmental effect on

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Luo, Ning, Wei Liu, and Yanglong Duan. "Comparative analysis of ground source heat pump drilling construction techniques under complex geological conditions." E3S Web of Conferences 466 (2023): 01003. http://dx.doi.org/10.1051/e3sconf/202346601003.

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Abstract (sommario):

The buried pipe is an important part of the geothermal heat pumps system. One of the main reasons for the high initial installation cost of the ground source heat pump system is that its heavy drilling workload, long construction period and high cost account for the system cost. Especially in some complex geological conditions, the high proportion of drilling costs directly increase the overall cost of the geothermal heat pumps system, which to a certain extent restricts the popularization and application of geothermal heat pumps system. Based on the comparative analysis of different types of

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35

Katsura, Takao, Katsuya Saito, Motoaki Oe, and Katsunori Nagano. "Installation Cost and Heat Extraction Performance Analysis of H-Shaped PC Pile Ground Heat Exchangers for Small Buildings." Energies 17, no. 4 (2024): 891. http://dx.doi.org/10.3390/en17040891.

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Abstract (sommario):

Ground source heat pump systems are one of the renewable energy heat utilization technologies that can reduce the energy for HVAC and hot water supplies and consequently mitigate the progression of global warming. On the other hand, the development of ground heat exchangers that can be installed in small buildings with low installation costs is an important challenge for increasing the installation number of ground source heat pump systems in Japan. This study proposes H-shaped PC pile ground heat exchangers to reduce installation costs. The installation test and installation cost estimation o

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36

Predun, Kostiantyn, Vitalii Voinalovich, and Jamil Guliyev. "ENHANCEMENT OF ENERGY EFFICIENCY AND BIOSPHORE COMPATIBILITY OF BUILDINGS AND STRUCTURES IN UKRAINE." Urban development and spatial planning, no. 84 (September 25, 2023): 263–75. http://dx.doi.org/10.32347/2076-815x.2023.84.263-275.

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Abstract (sommario):

The use of alternative energy sources is one of the most important areas of modern energy policy, aimed both at improving the environment and saving traditional fuel and energy resources. Adopted legislative and regulatory acts contributed to the rapid growth of "green" energy in Ukraine. The meaning of the ecological and energy optimization process is not to replace one energy source with another, but economic and industrial transformation, decarbonization and decentralization.  A technical solution to the problem regarding the source of alternative energy due to the use of heat in the

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37

Tewari, Shilpi, and Priyadarsini Rajagopalan. "Integration of Heat Pumps in Social Housing—Role of User Behaviour and User Satisfaction." Buildings 15, no. 6 (2025): 898. https://doi.org/10.3390/buildings15060898.

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Abstract (sommario):

Many countries around the world have rolled out energy efficiency programs and incentives to encourage the adoption of energy-efficient technologies, including heat pumps. Currently, the academic investigation of heat pump technology implementation in Australia, particularly within the social housing sector, is quite sparse. This knowledge gap is particularly evident in the realm of comprehending user acceptance related to comfort, operating and capital costs, and the ability to operate and the extent to which occupants in social housing embrace and adapt to this technological advancement. Thi

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Korchagin, Mykhailo. "IMPROVING THE EFFICIENCY OF HEAT PUMPS FOR THE CLIMATIC CONDITIONS OF UKRAINE." Collection of Scientific Works of the Ukrainian State University of Railway Transport, no. 211 (March 28, 2025): 148–56. https://doi.org/10.18664/1994-7852.211.2025.327121.

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Abstract (sommario):

The article analyzes the temperature modes of operation of modern heat pump equipment. The temperature range of the outside air, at which heat pumps of the most common classes work effectively, is limited. It is important to modernize the design of heat pump equipment in order to expand the limits of its application. Air-to-water heat pumps are most suitable for use as heat sources for heating residential, office and administrative buildings. At the same time, the energy efficiency class of buildings must not be lower than "C". The amplitude of outdoor air temperatures in the cold period of th

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39

Kharchenko, Valeriy, Arseniy Sychov, Pasquale Luigi De Angelis, and Ugo Fiore. "Monitoring System of a Heat Pump Installation for Heating a Rural House Using Low-grade Heat from a Surface Watercourse." Journal of Sensor and Actuator Networks 9, no. 1 (2020): 11. http://dx.doi.org/10.3390/jsan9010011.

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Abstract (sommario):

Increasing the efficiency of heat pump systems primarily used for heat supply to buildings is an important topic. This is especially true for systems constructed according to non-standard schemes and which use low-grade heat from various sources that are rarely considered for these purposes. Such studies require special, often expensive, data acquisition systems. In this paper, a low-cost computer-based monitoring system is presented. The monitoring system incorporates solutions which are new or seldom used. It is shown that modern semiconductor thermistors can replace commonly used platinum t

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40

SINGH, Jujhaar, and John KENNEDY. "Advancing noise reduction strategies for domestic air-source heat pumps." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 6 (2024): 5601–12. http://dx.doi.org/10.3397/in_2024_3621.

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Abstract (sommario):

With the increasing adoption of heat pump technology in the energy sector, addressing noise emissions is crucial for public acceptance, regulatory compliance, and sustainable urban planning. Air-Source Heat Pump's noise emission, noise sources, reduction strategies, problematic frequency ranges, and noise transmission within buildings are considered. Various noise reduction strategies, including the strategic siting, enclosures, and vibration isolation techniques, are discussed. This study considered a scenario of heat pump noise emission which generated noise complaints. The heat pump noise s

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41

Serhii, Sharapov, Husiev Danylo, Panchenko Vitalii, Kozin Viktor, and Baha Vadym. "Analysis of the possibility of using R718 for a heat pump of a heating system based on a liquid-vapor ejector." Eastern-European Journal of Enterprise Technologies 6, no. 8 (108) (2020): 39–44. https://doi.org/10.15587/1729-4061.2020.217274.

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Abstract (sommario):

The study explores the possibility of using water (R718) as a refrigerant for a heat pump installation of a heating system. This unit is a vapor compression heat pump with a regenerative heat exchanger in which the vacuum unit based on a liquid-vapor ejector is used instead of a scroll refrigeration compressor. The working process of such an apparatus is based on implementing a fundamentally new cycle that does not require the supply of working steam from the outside. Instead, steam is generated inside the vacuum unit. The article describes the proposed installation and its differences from th

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42

Fedosov, Sergey V., Azariy A. Lapidus, Vadim N. Fedoseev, and Alexander M. Sokolov. "Prospects of using heat pumps for the thermal treatment of concrete in the field." Vestnik MGSU, no. 6 (June 2022): 747–55. http://dx.doi.org/10.22227/1997-0935.2022.6.747-755.

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Abstract (sommario):

Introduction. In the cold Russian climate, thermal treatment of concrete is kind of a mandatory operation conducted to accelerate concrete curing as part of the manufacturing of reinforced concrete products and structures. In practical work, concreting at low temperatures in the field may be accompanied by a shortage and high cost of energy resources needed to perform such thermal treatment.  Materials and methods. A promising economical solution to the problem of thermal treatment of concrete and reinforced concrete products in the field is the use of air heat pump systems. The re

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43

Kizurov, A. S. "Modernization of the heat pump installation for drying wheat." Journal of Physics: Conference Series 1614 (August 2020): 012068. http://dx.doi.org/10.1088/1742-6596/1614/1/012068.

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44

Murano, Giovanni, Francesca Caffari, Nicolandrea Calabrese, and Marco Dall’Ombra. "Meeting 2030 Targets: Heat Pump Installation Scenarios in Italy." Sustainability 17, no. 13 (2025): 5938. https://doi.org/10.3390/su17135938.

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Abstract (sommario):

The study examines the role of heat pumps (HPs) in achieving the targets set by the Italian National Integrated Energy and Climate Plan (PNIEC) for 2030, using official data and European-recognized calculation methodologies to quantify the renewable energy produced. Starting from the current stock analysis—21 million HPs installed in 2022, providing 39 GWth of thermal capacity—the research outlines potential growth scenarios based on installation trends from the past three years: Scenario A assumes 2.5 million HPs/year, (b) 2.2 million/year, and (c) 1.6 million/year. Only Scenario A, the most

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45

Cooper, Joyce, Tarja Häkkinen, Sirje Vares, Jenni Jahn, and Sakari Pulakka. "Combining Building Renovation and Ground Source Heat Pump Installations for the Reduction of Greenhouse Gas Emissions: A Case Study in Vaasa Finland." Journal of Green Building 4, no. 1 (2009): 146–68. http://dx.doi.org/10.3992/jgb.4.1.146.

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Abstract (sommario):

Given the growing interest in ground source heat pump and distributed heating installations in general for the reduction of greenhouse gas emissions, technology implementation planning can benefit from the simultaneous consideration of building renovations. Here, a method for identifying and evaluating scenarios based on cost and greenhouse gas emissions is presented. The method is demonstrated for a case study in Vaasa Finland. The case study considers the insulation of the walls, roof, and base floor and the replacement of windows based on 2003 and 2010 Finnish building codes simultaneously

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46

Ivashina, Yu, and V. Zavodyannyi. "INSTALLATION FOR DETERMINATION OF HEAT RELEASE OF HEATING RADIATORS." Municipal economy of cities 4, no. 164 (2021): 77–81. http://dx.doi.org/10.33042/2522-1809-2021-4-164-77-81.

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Abstract (sommario):

To calculate the share of thermal energy consumed by this apartment in an apartment building, it is necessary to determine the heat transfer of all heating radiators in the house. But the heat transfer given in the passport of the heating device corresponds to the temperature pressure equal to 70K. Often the owners install non-standard devices, so the problem of determining the heat transfer of heating radiators in real conditions is relevant. Thermometric method, which is called electric, is widely used for laboratory determination of heat transfer of heating devices. Water by means of the pu

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47

Witkowska, Agata, and Dorota Anna Krawczyk. "Analysis of the Advisability of Using an Air-Source Heat Pump in a Single Family House in Poland and Spain." Proceedings 51, no. 1 (2020): 11. http://dx.doi.org/10.3390/proceedings2020051011.

Testo completo

Abstract (sommario):

In recent years, modern and energy-saving solutions, such as heat pumps or solar collectors, have enjoyed great popularity in the heating and cooling sector, which is conditioned by political and environmental factors. The aim of this paper was to analyze the advisability of the employment of renewable energy sources, such as a heat pump, for heating and cooling in single-family buildings in Poland and Spain. Based on the calculations made for a traditional house, located in two cities with different climatic conditions—Wroclaw and Cordoba, the heat losses and gains were determined. On that ba

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48

Rehman, Omais Abdur, Valeria Palomba, Andrea Frazzica, Antonios Charalampidis, Sotirios Karellas, and Luisa F. Cabeza. "Numerical and Experimental Analysis of a Low-GWP Heat Pump Coupled to Electrical and Thermal Energy Storage to Increase the Share of Renewables across Europe." Sustainability 15, no. 6 (2023): 4973. http://dx.doi.org/10.3390/su15064973.

Testo completo

Abstract (sommario):

In order to reduce the dependence on fossil fuels in the residential sector, low-carbon-footprint technologies such as heat pumps should be used. To fully exploit solar-assisted heat pumps, an effective control strategy is required. This study employs a low-global-warming-potential (GWP) refrigerant for a water-to-water reversible heat pump, which is assisted by a thermal energy storage tank, photovoltaic (PV) installation, and battery storage system using a dedicated control strategy. The heat pump’s operation is validated against the experimental data. Simulations are carried out for three d

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49

Den Braven, K., and E. Nielson. "Performance Prediction of a Sub-Slab Heat Exchanger for Geothermal Heat Pumps." Journal of Solar Energy Engineering 120, no. 4 (1998): 282–88. http://dx.doi.org/10.1115/1.2888132.

Testo completo

Abstract (sommario):

A large portion of the installation cost of a ground-coupled heat pump system is for the excavation necessary for ground coil placement. One possible method of reducing this cost is to place the ground coils beneath the slab floor of the building. This configuration of ground coil placement has not been specifically addressed in previous research. Freezing of the soil must be avoided in such a system. To simulate the temperature response of the surrounding soil to heat pump operation, a computer model was developed which incorporates line source theory in the form of a system of rings. The flu

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50

Tikhomirov, D. A., A. V. Khimenko, and A. V. Kuzmichev. "Floor Heating of Piglets Using a Thermoelectric Heat Pump." Machinery and Equipment for Rural Area, no. 9 (September 27, 2021): 28–32. http://dx.doi.org/10.33267/2072-9642-2021-9-28-32.

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Abstract (sommario):

A functional and process flow diagram of an energy-saving floor heating panel using a thermoelectric assembly operating in a heat pump mode has been developed. The technique and calculation of the main heat-and-power parameters of this installation are presented. Studies of a working prototype of a floor heating panel, which have shown the high energy efficiency of the installation being developed, have been performed. It is shown that energy saving is about 15% in comparison with the serially used equipment for local heating of young animals.

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