Log in

Relevant bibliographies by topics / Absorption heat pump / Journal articles

To see the other types of publications on this topic, follow the link: Absorption heat pump.

Journal articles on the topic 'Absorption heat pump'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 May 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Absorption heat pump.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Wang, Ze, Honghong Shen, Qunyin Gu, Daoyuan Wen, Gang Liu, Weijun Gao, and Jianxing Ren. "Economic Analysis of Heat Pump Recovery System for Circulating Water Waste Heat in Power Plant." E3S Web of Conferences 256 (2021): 02011. http://dx.doi.org/10.1051/e3sconf/202125602011.

Full text

Abstract:

The use of heat pump technology to recover the waste heat of circulating water from the power plant instead of steam extraction for heating can not only improve the thermal efficiency of the unit and reduce the loss of cold source, but also has great advantages in energy saving. This paper uses absorption and compression heat pumps to recover the waste heat of circulating water in the power plant to study its energy-saving benefits. Under the same heating load, the economics of the two heat pumps are calculated and analyzed. The results show that the energy-saving benefits of absorption heat pump units are far greater than compression units. But in terms of water saving, the water saving capacity of the compression heat pump unit is higher than that of the absorption heat pump.

APA, Harvard, Vancouver, ISO, and other styles

2

L. Szabó, Gábor. "Thermo-Chemical Instability and Energy Analysis of Absorption Heat Pumps." Energies 13, no. 8 (April 16, 2020): 1966. http://dx.doi.org/10.3390/en13081966.

Full text

Abstract:

This paper presents the results of energy analysis of absorption heat pumps. The thermo-chemical instability term was introduced for absorption heat pumps used for heating or cooling or heating and cooling. A higher thermo-chemical instability results in the equipment being more sensitive with regard to the variation of the heat source flux. This sensitivity can be taken into account when heat sources are chosen for a certain absorption machine. Absorption heat pumps having thermo-chemical compressors were compared from energy demand and energy efficiency points of view with heat pumps having mechanical compressors. As it is shown, for certain evaporation and condensation temperature values, an absorption heat pump with similar efficiency to that of the heat pump with a mechanical compressor can always be found.

APA, Harvard, Vancouver, ISO, and other styles

3

Yu, Hai Hong, Qiao Li Cao, Ming Hui Cui, and Xin Wang. "The Research of Absorption Heat Pump Taking Basic Heat Load City Heat-Supply Network Heating Regulation Optimization." Applied Mechanics and Materials 587-589 (July 2014): 325–29. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.325.

Full text

Abstract:

This paper aiming at absorption heat pump maximizing annual heating quantity, with the goal of thermal power plant absorption heat pump heating earnings in different heating regulation mode, set up calculation model of absorption heat pump heating earnings, analysis heat-supply network backwater temperature fluctuations and heat pump heating quantity difference in different heating regulation mode, discuss optimization approach of absorption heat pump taking basic heat load city heat-supply network heating regulation, calculate heat pump heating earnings finally. The results showed that the pure quality regulation can get the best economic benefits of absorption heat pump.

APA, Harvard, Vancouver, ISO, and other styles

4

Sekret, Robert, and Anna Nitkiewicz. "Exergy analysis of the performance of low-temperature district heating system with geothermal heat pump." Archives of Thermodynamics 35, no. 1 (March 1, 2014): 77–86. http://dx.doi.org/10.2478/aoter-2014-0005.

Full text

Abstract:

Abstract Exergy analysis of low temperature geothermal heat plant with compressor and absorption heat pump was carried out. In these two concepts heat pumps are using geothermal water at 19.5 oC with spontaneous outflow 24 m3/h as a heat source. The research compares exergy efficiency and exergy destruction of considered systems and its components as well. For the purpose of analysis, the heating system was divided into five components: geothermal heat exchanger, heat pump, heat distribution, heat exchanger and electricity production and transportation. For considered systems the primary exergy consumption from renewable and non-renewable sources was estimated. The analysis was carried out for heat network temperature at 50/40 oC, and the quality regulation was assumed. The results of exergy analysis of the system with electrical and absorption heat pump show that exergy destruction during the whole heating season is lower for the system with electrical heat pump. The exergy efficiencies of total system are 12.8% and 11.2% for the system with electrical heat pump and absorption heat pump, respectively.

APA, Harvard, Vancouver, ISO, and other styles

5

Riffat, S. B., N. J. Shankland, and C. W. Wong. "Rotary absorption - recompression heat pump." Building Services Engineering Research and Technology 15, no. 1 (February 1994): 27–30. http://dx.doi.org/10.1177/014362449401500105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Garimella, Srinivas, J. W. Coleman, and A. Wicht. "DESIGN OF ABSORPTION-HEAT-PUMP HEAT EXCHANGERS." Journal of Enhanced Heat Transfer 24, no. 1-6 (2017): 211–30. http://dx.doi.org/10.1615/jenhheattransf.v24.i1-6.150.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Kiatsiriroat, T., S. C. Bhattacharya, and P. Wibulswas. "Upgrading heat by a reversed absorption heat pump." Applied Energy 25, no. 3 (January 1986): 175–86. http://dx.doi.org/10.1016/0306-2619(86)90024-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Lazzarin, R. M., G. A. Longo, and F. Piccininni. "An open cycle absorption heat pump." Heat Recovery Systems and CHP 12, no. 5 (September 1992): 391–96. http://dx.doi.org/10.1016/0890-4332(92)90060-u.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Zhao, Xi Ling, Zhong Hai Zheng, Lin Fu, and Yan Li. "Application Analysis of the BCHP System with the Soil Source Absorption Heat Pump Driven by the Flue Gas." Applied Mechanics and Materials 170-173 (May 2012): 2747–50. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.2747.

Full text

Abstract:

How to use the waste heat deeply are a critical issue for BCHP (Building combined cooling heating and power) system. A BCHP system with a soil source absorption heat pump driven by the waste heat is proposed. The system is composed of an internal combustion engine, a soil source absorption heat pump driven by the flue gas, and other assistant facilities, such as pumps, fans, and end user devices. In the winter, the flue gas is used to drive absorption heat pump to recover the waste heat of the soil source and the condensation heat of the flue gas simultaneously, and in the summer, the waste heat of the flue gas is used to drive absorption heat pump to cooling, and the heat sink is the soil. In the paper, the configuration of this kind of system is designed, and the energy analysis of the system is done all the year. Compared with the conventional BCHP system, the operation cost is lowered greatly and the increased investment could be returned within one year. It is show that the system is the efficient integration of cleaning energy, renewable energy, the discharge of the flue gas could be reduced to below 30°C, and the water steam could be catch to avoid the white smoke of the stack. The energy saving in space heating could be 66% compared with the conventional BCHP systems.

APA, Harvard, Vancouver, ISO, and other styles

10

LABUS, J., M. A. MARIMON, and A. CORONAS. "EXPERIMENTAL EVALUATION OF A SMALL CAPACITY H2O–LiBr ABSORPTION HEAT PUMP IN COOLING AND HEATING MODES." International Journal of Air-Conditioning and Refrigeration 18, no. 04 (December 2010): 317–25. http://dx.doi.org/10.1142/s2010132510000319.

Full text

Abstract:

This study describes the experimental analysis of a small-scale H2O–LiBr absorption heat pump of 4.5 kW cooling and 8 kW heating capacity. The water-cooled heat pump is activated by hot water which can be supplied by solar collectors or a gas boiler. For the purpose of the performance analysis, the absorption heat pump was tested in a multifunctional test bench built up at the University Rovira i Virgili in Tarragona, Spain. The absorption heat pump was tested by varying the main operating parameters of the external water circuits, such as temperature and flow rate. Finally, this work resulted in complete performance evaluation of absorption heat pump, including heat losses and experimental uncertainties.

APA, Harvard, Vancouver, ISO, and other styles

11

Sheng, Wei, Xiu Fang Liu, Xiao Zhuan Chen, and Hua Wang. "Ejector Influence on Performance of Ammonia Absorption Heat Pump System." Applied Mechanics and Materials 163 (April 2012): 107–10. http://dx.doi.org/10.4028/www.scientific.net/amm.163.107.

Full text

Abstract:

A single-effect ammonia absorption-ejection heat pump system is set up. Combined with T-S diagram, performance analysis is presented on the heat pump system with ejector or without ejector. The results show that, with the ejector coefficient equal to 0.5, and the cooling coefficient of performance of the single-effect ammonia absorption heat pump equal to 0.3, 0.45 and 1.45 can at least be gained for the heating coefficient of performance and the cooling coefficient of performance respectively. In this paper, relation curve diagram is also presented for the heating coefficient of performance of absorption-ejection heat pump system, the cooling coefficient of performance of single-effect absorption heat pump system and the ejector coefficient.

APA, Harvard, Vancouver, ISO, and other styles

12

Li, Biao, and Jiang Fan. "Influence of Temperature Parameter Change on Lithium Bromide Absorption Heat Pump Performance." Applied Mechanics and Materials 291-294 (February 2013): 1670–74. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.1670.

Full text

Abstract:

It is the new way of the thermal power plant energy conservation to recycling plant circulating water waste heat for heating with the heat pump technology. The recovery of low temperature waste heat is the background. And lithium bromide absorption heat pump is the object of this study. The impact of changes in temperature parameters on the performance of heat pump unit is analyzed. As a theoretical basis for the design of the heat pump system and power plant heat pump unit’s optimal operation provide a reference. The result provides a theoretical reference for the optimal operation of the heat pump system design and power plant heat pump units.

APA, Harvard, Vancouver, ISO, and other styles

13

Valancius, Rokas, Rao Martand Singh, Andrius Jurelionis, and Juozas Vaiciunas. "A Review of Heat Pump Systems and Applications in Cold Climates: Evidence from Lithuania." Energies 12, no. 22 (November 13, 2019): 4331. http://dx.doi.org/10.3390/en12224331.

Full text

Abstract:

Similar to other cold climate countries, space heating and domestic hot water (DHW) accounts form the largest share of household energy demand in Lithuania. Heat pump technology is considered to be one of the environmentally friendly solutions to increase energy efficiency and reduce the carbon footprint of buildings. Heat pumps have been finding their way into the Lithuanian market since 2002, and currently there are many good practice examples present in the country, especially in the residential and public sectors. Heat pump use is economically advantageous in the Baltic Region, and the market share of these systems is growing. Studies have reported seasonal performance factor (SPF) ranges within 1.8 and 5.6. The lower SPF values are typically attributable to air source heat pumps, whereas the higher efficiency is achieved by ground or water source heat pump applications. While the traditional heat pump techniques are well established in the region, there is a slow uptake of new technologies, such as solar-assisted heat pumps, absorption heat pumps and heat pumps integrated into foundations, tunnels or diaphragm walls. This paper provides a critical review of different heat pump technologies, using Lithuania as a cold climate case study to overview the market trends within the European context. Potential trends for the heat pump technology development in terms of application areas, cost-benefit predictions, as well as environmental aspects, are discussed.

APA, Harvard, Vancouver, ISO, and other styles

14

Wang, Jinshi, Weiqi Liu, Guangyao Liu, Weijia Sun, Gen Li, and Binbin Qiu. "Theoretical Design and Analysis of the Waste Heat Recovery System of Turbine Exhaust Steam Using an Absorption Heat Pump for Heating Supply." Energies 13, no. 23 (November 27, 2020): 6256. http://dx.doi.org/10.3390/en13236256.

Full text

Abstract:

In northern China, many thermal power plants use absorption heat pump to recover low-grade heat from turbine exhaust steam due to the irreplaceable advantages of the absorption heat pump in waste heat recovery. In the process of designing a waste heat recovery system, few researchers have considered the relationship between the design power of the heat pump and the actual heating load of the heating network. Based on the heating load characteristics, this paper puts forward a design idea which uses an absorption heat pump to recover waste heat from a steam turbine exhaust for heating supply. The operation mode of the system for different design powers of the heat pump was stated. An economic analysis model of the waste heat recovery system was proposed, and the optimal design power of the heat pump could be obtained. For a specific unit, the corresponding waste heat recovery system was designed, and various factors affecting the economy of the system were discussed and analyzed in detail.

APA, Harvard, Vancouver, ISO, and other styles

15

Zhao, Xi Ling, Yan Li, and Lin Fu. "Thermodynamic Optimization Characteristics of a Type I Absorption Heat Pump within Finite Time." Applied Mechanics and Materials 204-208 (October 2012): 4250–53. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.4250.

Full text

Abstract:

The absorption heat pump was studied with finite time thermodynamics. A four reservoirs model of absorption heat pump which is treated as an irreversible Carnot heat pump driven by an irreversible Carnot heat engine was established considering the heat resistance and the irreversibility of the internal cycle. A generalized optimization relationship between the main parameters and the corresponding conditions were derived. It is show that, two internal irreversibility parameters, the heat engine cycle and the heat pump cycle has different effects on system performance, and the reduction of the friction, heat loss, and internal dissipations of the equivalent heat pump cycle are more important than its reduction of heat engine cycle.

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Jing Gang, Xiao Xia Gao, Bo Liang, and Hua Hui Zhou. "The Study of Cooling Water Waste Heat Recovery in Chemical Plant by Heat Pump System." Advanced Materials Research 121-122 (June 2010): 986–91. http://dx.doi.org/10.4028/www.scientific.net/amr.121-122.986.

Full text

Abstract:

A large number of cooling water exists in chemical plant, use water source heat pump and lithium bromide absorption heat pump system to achieve water cooling instead of cooling tower, at the same time, extract heat for building cooling and heating. Respectively introduced the summer cooling system and winter heating system, and a feasibility analysis was carried out. The conclusion is get: water source heat pump system and lithium bromide absorption heat pump system for cooling water waste heat recovery is certain feasibility; the environment optimization can be achieved in chemical plant, at the same time, energy conservation and emission reduction is realized.

APA, Harvard, Vancouver, ISO, and other styles

17

Li, Yun, and Kai Song. "Economic Analysis of the Absorption Heat Pump in Supercritical Unit." Applied Mechanics and Materials 291-294 (February 2013): 1666–69. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.1666.

Full text

Abstract:

As an effective energy-saving device, the heat pump is environmentally friendly and advantageous in the recovery of low-temperature and middle-temperature waste heat. So it is increasingly being used in practical applications. The circulating water which is produced by power plants has a large number of low-temperature waste heat. It will bring huge economic and environmental benefits by using heat pump technology to recover those waste heat energy. The application of the heat pump in supercritical unit is discussed as the example of central heating project using waste heat in a power plant. And the basic principle of absorption heat pump is introduced. The economy, energy conservation and environmental benefits of lithium bromide absorption heat pump are also analyzed when it is used in 600MW supercritical unit.

APA, Harvard, Vancouver, ISO, and other styles

18

Butz, D., and K. Stephan. "Dynamic behavior of an absorption heat pump." International Journal of Refrigeration 12, no. 4 (July 1989): 204–12. http://dx.doi.org/10.1016/0140-7007(89)90045-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Lourdudoss, Sebastian, and Hans Stymne. "An energy storing absorption heat pump process." International Journal of Energy Research 11, no. 2 (April 1987): 263–74. http://dx.doi.org/10.1002/er.4440110208.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

FUKUSUMI, Yukihiro. "W091004 Steam Generator Using Absorption Heat Pump." Proceedings of Mechanical Engineering Congress, Japan 2011 (2011): _W091004–1—_W091004–3. http://dx.doi.org/10.1299/jsmemecj.2011._w091004-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Nguyen, M., S. B. Riffat, and D. Whitman. "Solar/gas-driven absorption heat-pump systems." Applied Thermal Engineering 16, no. 4 (April 1996): 347–56. http://dx.doi.org/10.1016/1359-4311(95)00085-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Romero, R. J., J. Cerezo, A. Martínez, G. Luna, and M. Gutiérrez. "On the Dimensionless Absorption Heat Pump Widespread." Journal of Advanced Thermal Science Research 8, no. 1 (July 25, 2021): 10–20. http://dx.doi.org/10.15377/2409-5826.2021.08.2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Gai, Limei, Petar Sabev Varbanov, Timothy Gordon Walmsley, and Jiří Jaromír Klemeš. "Critical Analysis of Process Integration Options for Joule-Cycle and Conventional Heat Pumps." Energies 13, no. 3 (February 3, 2020): 635. http://dx.doi.org/10.3390/en13030635.

Full text

Abstract:

To date, research on heat pumps (HP) has mainly focused on vapour compression heat pumps (VCHP), transcritical heat pumps (TCHP), absorption heat pumps, and their heat integration with processes. Few studies have considered the Joule cycle heat pump (JCHP), which raises several questions. What are the characteristics and specifics of these different heat pumps? How are they different when they integrate with the processes? For different processes, which heat pump is more appropriate? To address these questions, the performance and integration of different types of heat pumps with various processes have been studied through Pinch Methodology. The results show that different heat pumps have their own optimal application range. The new JCHP is suitable for processes in which the temperature changes of source and sink are both massive. The VCHP is more suitable for the source and sink temperatures, which are near-constant. The TCHP is more suitable for sources with small temperature changes and sinks with large temperature changes. This study develops an approach that provides guidance for the selection of heat pumps by applying Process Integration to various combinations of heat pump types and processes. It is shown that the correct choice of heat pump type for each application is of utmost importance, as the Coefficient of Performance can be improved by up to an order of magnitude. By recovering and upgrading process waste heat, heat pumps can save 15–78% of the hot utility depending on the specific process.

APA, Harvard, Vancouver, ISO, and other styles

24

Zhong, Xiao Hui, Zhi Mei Wen, Bin Zhao, and Nan Jia. "Experimental Study on Absorption Heat Pump of Waste Heat and Ground Source." Advanced Materials Research 641-642 (January 2013): 73–76. http://dx.doi.org/10.4028/www.scientific.net/amr.641-642.73.

Full text

Abstract:

With the sinter waste heat as driving heat source, the experiment table of absorption heat pump combined waste heat and ground source was build. Experimental study is conducted with the process of stable and variable condition, and operating characteristics in different conditions were obtained. The system operating results provide reference for energy use patterns of heat pump combined waste heat and ground source.

APA, Harvard, Vancouver, ISO, and other styles

25

Englart, Sebastian, Andrzej Jedlikowski, Wojciech Cepiński, and Marek Badura. "Renewable energy sources for gas preheating." E3S Web of Conferences 116 (2019): 00019. http://dx.doi.org/10.1051/e3sconf/201911600019.

Full text

Abstract:

To ensure proper gas supply parameters, to the polish natural gas distribution network, which includes about 900 pressure reduction stations (PRS), requires high energy consumption for gas heating, that amounts to approx. 700 TJ/year. This value can be significantly reduced by using renewable energy sources (e.g. ground heat exchangers, heat pumps) in polish gas preheating PRS. This paper presents the analysis of some applications for gas preheating by using gas absorption heat pump and combination of heat pump and ground heat exchanger. The results confirm a noticeable heat energy savings at the PRS by 44%.

APA, Harvard, Vancouver, ISO, and other styles

26

Smolen, Slavomir, and Marzena Budnik-Rodz. "Technical and economic aspects of waste heat utilization." Thermal Science 11, no. 3 (2007): 165–72. http://dx.doi.org/10.2298/tsci0703165s.

Full text

Abstract:

The main aim of the following presentation is the comparison and evaluation of the conditions for waste heat utilization in Germany and in Poland. This paper presents synthetically the results of economic analysis of the different technical variants. The employment of heat pumps and other heat transformers, respectively, can reduce the energy consumption, but using of those technical possibilities depends mainly on the economic aspects. The main parameters of the financial calculations were the energy and equipment costs but beyond it a number of other factors were also considered and compared, for example calculation interests, profit tax level and similar. Four different technical alternatives were analyzed, it is using of absorption heat pump, compression heat pump, heat transformer (absorption), and a special combined system with gas motor to drive of heat pump compressor. The capital value as main result of the investigations is in Poland generally lower because of relatively high investment cost and lower energy prices compared to the situation in Germany and West Europe. The basis for the presented comparative analysis was an industrial project in Germany which effected in development of concepts for waste heat using. .

APA, Harvard, Vancouver, ISO, and other styles

27

Zwierzchowski, Ryszard, Marcin Malicki, and Maciej Lipka. "Innovative model of trigeneration system generating desalinated water, hot and cold by using low grade heat recovery from nuclear reactor set in cascade of sorption devices." E3S Web of Conferences 116 (2019): 00108. http://dx.doi.org/10.1051/e3sconf/201911600108.

Full text

Abstract:

The paper introduces an innovative conceptual model of a trigeneration system based on implementation of sorption devices in cascade configuration: absorption heat pumps and adsorption chillers connected with thermal energy storage, for recovering useless heat from secondary cooling circuit of a research nuclear reactor. Proposed trigeneration source provides building with useful heat for the purposes of heating system with thermal energy storage and cold for air-conditioning purposes. Also, desalinated water covering technological demand is produced. Useful heat is produced by an absorption heat pump, cold and desalinated water by adsorption chiller/desalinator. For the described trigeneration system calculations based on commercially available equipment (lithium-bromate absorption heat pumps and silica-gel adsorption chillers with desalination option) and required heat/cold/desalinate demand have been carried out. Operational data collected from an existing installation extended by introducing thermal energy storage to the system was used to simulate the heat demand during the year. 5-year operational data from the “MARIA” research nuclear reactor located at the National Center for Nuclear Research in Świerk, Poland was used to simulate low source variations for the absorption heat pump operation. The results of model implementation demonstrate a series of promising effects on many levels of system operation, including production of desalinated water on a large scale and significant reduction of: (I) energy usage (by 40% when considering only heating scenario), (II) nuclear fuel consumption, (III) heat delivery losses.

APA, Harvard, Vancouver, ISO, and other styles

28

Zhao, Qi, Chen Wang, and Feng Yi Han. "Performance Analysis of the Absorption Heat Pump Systems Based on the Entransy Theory." Applied Mechanics and Materials 584-586 (July 2014): 2179–83. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.2179.

Full text

Abstract:

The entransy efficiency expression of the absorption heat pump systems was defined in this paper, combined with the concept of the entransy and based on the model of a four temperature level absorption heat pump cycle. The relationship between the heating coefficient of the absorption heat pump and heating rate with the changes of the entransy efficiency was deduced. Numerical example was introduced to analysis the impactions of the entransy efficiency on the absorption heat pump systems. The results show that the heating coefficient increases with the growth of entransy efficiency, the entransy efficiency and the heating rate becomes larger when the value u gets larger, but the heating coefficient gets smaller. The heating rate decreases with the growth of the heating coefficient, the value u has more impaction on the heating rate when the heating coefficient remains constant.

APA, Harvard, Vancouver, ISO, and other styles

29

Garimella, S. "Absorption Heat Pump Performance Improvement Through Ground Coupling." Journal of Energy Resources Technology 119, no. 4 (December 1, 1997): 242–49. http://dx.doi.org/10.1115/1.2794997.

Full text

Abstract:

The present study investigates the improvement in the performance of an absorption heat pump for residential space-conditioning due to the use of the ground as the heat source in the heating mode and the heat sink in the cooling mode. A baseline air-coupled single-effect ammonia-water heat pump is first designed to deliver 10.55 kW (36,000 Btu/h) of cooling load at the ARI rating conditions. Particular attention is paid to incorporating many realistic details of an operating system such as fuel combustion efficiencies of the burner, nonequilibrium conditions, and moist air processes in the air-coupled heat exchangers. A range of parametric studies is also conducted to investigate the variation in performance of this system with ambient conditions in the heating and cooling modes. The same system is then analyzed in a ground-coupled configuration. The instantaneous COP for the ground-coupled system is compared with the COP of the air-coupled system as a function of the time of the year and the corresponding variations in ambient and ground temperatures using 30-yr average climate data for various locations from the National Weather Service. Improvements in COP of up to 20 percent over the air-coupled system values (cooling mode COP of 0.495 at 35°C (95°F) and heating mode COP of 1.20 at 8.33°C (47°F)) are demonstrated in diverse geographic locations with widely varying heating and cooling loads. These improvements indicate that an efficient ground-coupled heat pump could be developed for residential space-conditioning applications using simple thermodynamic cycles and existing technology for the heat and mass exchange components.

APA, Harvard, Vancouver, ISO, and other styles

30

Ibarra-Bahena, Jonathan, Shankar Raman, Yuridiana Rocio Galindo-Luna, Antonio Rodríguez-Martínez, and Wilfrido Rivera. "Role of Membrane Technology in Absorption Heat Pumps: A Comprehensive Review." Membranes 10, no. 9 (August 31, 2020): 216. http://dx.doi.org/10.3390/membranes10090216.

Full text

Abstract:

The role of heat pumps is linked to the actions of human life. Even though the existing technologies perform well in general, they have still some problems, such as cost, installation area, components size, number of components, noise, etc. To address these issues, membrane technologies have been introduced in both heat and cooling devices. The present work proposes and studied the review of the role of membrane technology in the heat pumps. The study focuses on the advancement and replacement of membrane in the place of absorption and compression heat pump components. The detailed analysis and improvements are focused on the absorber, desorber, and heat and mass exchanger. The parameters conditions and operation of membrane technologies are given in detail. In addition to this, the innovation in the heat pumps using the membrane technology is given in detail.

APA, Harvard, Vancouver, ISO, and other styles

31

Eisa, M. A. R., R. Best, P. J. Diggory, and F. A. Holland. "Heat pump assisted distillation. V: A feasibility study on absorption heat pump assisted distillation systems." International Journal of Energy Research 11, no. 2 (April 1987): 179–91. http://dx.doi.org/10.1002/er.4440110203.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Calotă, Răzvan, Alina Girip, Anica Ilie, and Lucian Cîrstolovean. "Hybrid Absorption Heat Pump System Using Renewable Energy." Procedia Engineering 181 (2017): 738–45. http://dx.doi.org/10.1016/j.proeng.2017.02.460.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Narodoslawsky, M., G. Otter, and F. Moser. "Thermodynamic criteria for optimal absorption heat pump media." Heat Recovery Systems and CHP 8, no. 3 (January 1988): 221–33. http://dx.doi.org/10.1016/0890-4332(88)90058-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Tufano, Vincenzo. "On the performance of absorption heat pump-transformers." Heat Recovery Systems and CHP 15, no. 4 (May 1995): 327–32. http://dx.doi.org/10.1016/0890-4332(95)90001-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Hu, J. S., and Christopher Y. H. Chao. "Study of a micro absorption heat pump system." International Journal of Refrigeration 31, no. 7 (November 2008): 1198–206. http://dx.doi.org/10.1016/j.ijrefrig.2008.02.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Ohgata, Akihiro, Yuh Yamashita, and Hirokazu Nishitani. "Robust control of an absorption heat pump system." Computers & Chemical Engineering 21 (May 1997): S131—S136. http://dx.doi.org/10.1016/s0098-1354(97)87491-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Woods, Jason, John Pellegrino, Eric Kozubal, Steve Slayzak, and Jay Burch. "Modeling of a membrane-based absorption heat pump." Journal of Membrane Science 337, no. 1-2 (July 2009): 113–24. http://dx.doi.org/10.1016/j.memsci.2009.03.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Ohgata, A. "Robust Control of An Absorption Heat Pump System." Computers & Chemical Engineering 21, no. 1-2 (1997): S131—S136. http://dx.doi.org/10.1016/s0098-1354(97)00038-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Xiling, Zhao, Fu Lin, and Zhang Shigang. "General thermodynamic performance of irreversible absorption heat pump." Energy Conversion and Management 52, no. 1 (January 2011): 494–99. http://dx.doi.org/10.1016/j.enconman.2010.07.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Chen, Lingen, Xiaoyong Qin, Fengrui Sun, and Chih Wu. "Irreversible absorption heat-pump and its optimal performance." Applied Energy 81, no. 1 (May 2005): 55–71. http://dx.doi.org/10.1016/j.apenergy.2004.05.001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Le Lostec, Brice, Nicolas Galanis, Jean Baribeault, and Jocelyn Millette. "Wood chip drying with an absorption heat pump." Energy 33, no. 3 (March 2008): 500–512. http://dx.doi.org/10.1016/j.energy.2007.10.013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Leonzio, Grazia. "Mathematical model of absorption and hybrid heat pump." Chinese Journal of Chemical Engineering 25, no. 10 (October 2017): 1492–504. http://dx.doi.org/10.1016/j.cjche.2017.06.015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Li, Shao Hua, Long Gao, De Yong Che, Jing Lv, and Zhang Bai. "Condensation Heat of Turbine Exhaust Steam Recycling Research in Combined Heat and Power System." Applied Mechanics and Materials 448-453 (October 2013): 2203–7. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.2203.

Full text

Abstract:

Condensation heat of turbine exhaust steam is not only failed to use reasonable and effective in traditional thermal power plant, but also had a huge negative impact on the environment in the form of thermal pollution. This paper has a comparative analysis in condensation heat recovery technology programs of turbine exhaust steam, which is taken a certain 200MW CHP unit as the application object. Simulation and optimization analysis of the absorption heat pump technology is made for optimizing system parameters and operating parameters. The coal consumption analysis shows that absorption heat pump has a good energy conservation and emission reduction benefits.

APA, Harvard, Vancouver, ISO, and other styles

44

Zarzycki, Robert, and Marcin Panowski. "Waste heat utilisation for cogeneration of energy." Mechanik 90, no. 3 (March 6, 2017): 254–56. http://dx.doi.org/10.17814/mechanik.2017.3.45.

Full text

Abstract:

The paper shows the analysis of potential of absorption heat pump (APC) application to increase the efficiency of source energy conversion in the cogeneration power plant, by recuperation of waste heat from oil cooling system. In the presented case, the purpose of APC implementation was to eliminate the number of start up of pick hot water boilers. Obtained results showed that the waste heat may be utilised during the highest heat demand which may lead to delay or even avoiding the pick boiler start up, owing to absorption heat pump implementation.

APA, Harvard, Vancouver, ISO, and other styles

45

Wei, Fan, Shi Jie Zhang, and Yun Han Xiao. "Performance and Exergy Analysis of Open Absorption Heat Pump." Advanced Materials Research 953-954 (June 2014): 667–72. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.667.

Full text

Abstract:

An open absorption heat pump(OAHP) in second type was built in this paper in order to recycle the heat and water from the flue gas. the coefficient of performance(COP) and the exergy efficiency were analyzed with the method of process simulation. Results showed the COP is 0.64, and latent heat recovery ratio is 19.6%. The temperature and humidity of flue gas, the temperature and flowrate of cooling water would influence on the COP. The increase of these parameters would lead to COP increase. The exergy efficiency of the system was 19.2%. The absorber, the generator and the condenser produce most exergy loss. The exergy efficiency of condensation was 0, which was using to recovery condensation water. The exergy efficiency would be strengthen by reducing the exergy loss of absorber and generator.

APA, Harvard, Vancouver, ISO, and other styles

46

Koehler, Wolf J., Warren E. Ibele, Joseph Soltes, and Edgar R. Winter. "Availability simulation of a lithium bromide absorption heat pump." Heat Recovery Systems and CHP 8, no. 2 (January 1988): 157–71. http://dx.doi.org/10.1016/0890-4332(88)90008-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

George, J. M., W. Marx, and S. Srinivasa Murthy. "Thermodynamic analysis of R22-DMF compression-absorption heat pump." Heat Recovery Systems and CHP 9, no. 5 (January 1989): 433–46. http://dx.doi.org/10.1016/0890-4332(89)90146-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Jawahar, N., and S. Kumar. "Absorption heat-pump regeneration in a rankine steam cycle." Heat Recovery Systems and CHP 14, no. 6 (November 1994): 599–612. http://dx.doi.org/10.1016/0890-4332(94)90030-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Slesarenko, V. V. "Desalination plant with absorption heat pump for power station." Desalination 126, no. 1-3 (November 1999): 281–85. http://dx.doi.org/10.1016/s0011-9164(99)00183-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

OHGATA, AKIHIRO, YUH YAMASHITA, and HIROKAZU NISHITANI. "Controller Design of Absorption Heat Pump System via LMI." KAGAKU KOGAKU RONBUNSHU 24, no. 2 (1998): 291–98. http://dx.doi.org/10.1252/kakoronbunshu.24.291.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!