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Journal articles on the topic 'Air heat recovery'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Nasif, Mohammad Shakir, and Rafat Al-Waked. "Effect of Air to Air Fixed Plate Enthalpy Energy Recovery Heat Exchanger Flow Profile on Air Conditioning System Energy Recovery." Applied Mechanics and Materials 819 (January 2016): 245–49. http://dx.doi.org/10.4028/www.scientific.net/amm.819.245.

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Fixed plate enthalpy heat exchanger which utilizes permeable material as heat and moisture transfer surface has been used as an energy recovery system to recover sensible and latent heat in HVAC systems. The heat exchanger effectiveness is affected by the air flow profile. It is well known that counter flow configuration provides highest effectiveness, however, in real applications, it is not possible to implement a counter flow configuration, as both inlet and outlet ducts of the two flow streams are located on the same side of the heat exchanger. Therefore, several quasi-counter-flow heat ex

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2

Papakostas, K. T., and G. C. Kiosis. "Heat recovery in an air-conditioning system with air-to-air heat exchanger." International Journal of Sustainable Energy 34, no. 3-4 (2014): 221–31. http://dx.doi.org/10.1080/14786451.2013.879139.

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3

Bryszewska-Mazurek, Anna, and Wojciech Mazurek. "Experimental investigation of a heat pipe heat exchanger for heat recovery." E3S Web of Conferences 45 (2018): 00012. http://dx.doi.org/10.1051/e3sconf/20184500012.

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An air-to-air heat pipe heat exchanger has been designed, constructed and tested. Gravity-assisted wickless heat pipes (thermosiphons) were used to transfer heat from one air stream to another air stream, with a low temperature difference. A thermosiphon heat exchanger has its evaporation zone below the condensation zone. Heat pipes allow keeping a more uniform temperature in the heat transfer area. The heat exchanger consists of 20 copper tubes with circular copper fins on their outer surface. The tubes were arranged in a row and the air passed across the pipes. R245fa was used as a working f

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4

Fehrm, Mats, Wilhelm Reiners, and Matthias Ungemach. "Exhaust air heat recovery in buildings." International Journal of Refrigeration 25, no. 4 (2002): 439–49. http://dx.doi.org/10.1016/s0140-7007(01)00035-4.

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5

Krokida, M. K., and G. I. Bisharat. "Heat Recovery from Dryer Exhaust Air." Drying Technology 22, no. 7 (2004): 1661–74. http://dx.doi.org/10.1081/drt-200025626.

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6

Abd El-Baky, Mostafa A., and Mousa M. Mohamed. "Heat pipe heat exchanger for heat recovery in air conditioning." Applied Thermal Engineering 27, no. 4 (2007): 795–801. http://dx.doi.org/10.1016/j.applthermaleng.2006.10.020.

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7

XUE, Lianzheng, Guoyuan MA, Feng ZHOU, and Lei WANG. "Operation characteristics of air–air heat pipe inserted plate heat exchanger for heat recovery." Energy and Buildings 185 (February 2019): 66–75. http://dx.doi.org/10.1016/j.enbuild.2018.12.036.

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8

Roulet, C. A., F. D. Heidt, F. Foradini, and M. C. Pibiri. "Real heat recovery with air handling units." Energy and Buildings 33, no. 5 (2001): 495–502. http://dx.doi.org/10.1016/s0378-7788(00)00104-3.

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9

Grzebielec, Andrzej, Artur Rusowicz, and Adam Szelągowski. "Air purification in industrial plants producing automotive rubber components in terms of energy efficiency." Open Engineering 7, no. 1 (2017): 106–14. http://dx.doi.org/10.1515/eng-2017-0015.

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AbstractIn automotive industry plants, which use injection molding machines for rubber processing, tar contaminates air to such an extent that air fails to enter standard heat recovery systems. Accumulated tar clogs ventilation heat recovery exchangers in just a few days. In the plant in which the research was conducted, tar contamination causes blockage of ventilation ducts. The effect of this phenomenon was that every half year channels had to be replaced with new ones, since the economic analysis has shown that cleaning them is not cost-efficient. Air temperature inside such plants is often

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10

Marques, Hugo, Mónica Oliveira, and Nelson Martins. "Innovative polymeric air–air heat recovery system — Life cycle assessment." Energy Reports 6 (February 2020): 429–35. http://dx.doi.org/10.1016/j.egyr.2019.08.084.

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11

Zhong, Ke, and Yanming Kang. "Applicability of air-to-air heat recovery ventilators in China." Applied Thermal Engineering 29, no. 5-6 (2009): 830–40. http://dx.doi.org/10.1016/j.applthermaleng.2008.04.003.

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12

Li, Yang, and Xiu Juan Liang. "Experimental Study on Energy Saving between Heat Pump Unit of Heat Recovery Fresh Air and Heat Pipe Heat Pump Low Temperature Heat Recovery Unit in the Cold and Severe Cold Regions." Applied Mechanics and Materials 535 (February 2014): 37–41. http://dx.doi.org/10.4028/www.scientific.net/amm.535.37.

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In the cold and severe cold regions of our country, the average temperature in winter outdoor usually below -20°C. Air conditioning units was limited and damaged when it running under such conditions. In order to solve the the problems pointed out previously, the paper put forward solutions of the fresh air handling units in combination with heat pump unit of heat recovery fresh air and heat pipe heat pump low temperature heat recovery unit. Comparison energy-saving and recovery period of the two method through experimental research.

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13

Ignatkin, Ivan Yu. "EXHAUST AIR HEAT RECOVERY TECHNIQUE USING A RECUPERATIVE HEAT EXCHANGER." VESTNIK OF VORONEZH STATE AGRARIAN UNIVERSITY 1, no. 56 (2018): 143–48. http://dx.doi.org/10.17238/issn2071-2243.2018.1.143.

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14

Lamfon, N. J., M. Akyurt, and Y. S. H. Najjar. "Waste heat recovery using looped heat pipes for air cooling." Heat Recovery Systems and CHP 14, no. 4 (1994): 365–76. http://dx.doi.org/10.1016/0890-4332(94)90040-x.

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15

N. C. Bergstrom and P. N. Walker. "Air-to-Liquid Heat Exchanger System for Ventilation Heat Recovery." Transactions of the ASAE 30, no. 6 (1987): 1751–57. http://dx.doi.org/10.13031/2013.30632.

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16

Rathod, Manisha. "Experimental Investigation of Air-to-Air Counter Flow Heat Pipe Heat Exchanger for Heat Recovery System." IARJSET 4, no. 3 (2017): 54–57. http://dx.doi.org/10.17148/iarjset.2017.4312.

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17

Borowski, Marek, Marek Jaszczur, Daniel Satoła, Sławosz Kleszcz, and Michał Karch. "An analysis of the innovative exhaust air energy recovery heat exchanger." MATEC Web of Conferences 240 (2018): 02003. http://dx.doi.org/10.1051/matecconf/201824002003.

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Heating, ventilation and air conditioning systems are responsible for a nearly 50% of total energy consumption in operated buildings. One of the most important parts of the ventilation system is an air handling unit with a heat exchanger for energy recovery which is responsible for effective and efficient energy recovery from exhaust air. Typically heat exchangers are characterised by the producers by heat and humidity recovery efficiency up to 90% and 75% respectively. But these very high values are usually evaluated under laboratory conditions without taking into account a dynamic change of

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18

Sun, Li Ying, Li Tao Xiao, and Yi Tong Li. "Experimental Study on Heat Pipe Heat Recovery Type of Fresh Air Ventilator." Advanced Materials Research 608-609 (December 2012): 1172–76. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.1172.

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Have proposed a heat recovery of fresh air ventilator system form,which is based on the technology of refrigerant natural circulation named heat-pipe. Describes the working principle of the unit, designs a new type of heat recovery air ventilator test equipment,and carries out a experimental study on its running performance.Have come to the effect of air flow and the temperature difference between indoor and outdoor for the heat recovery rate. Experimental results show that this equipment has a high heat recovery efficiency and a good effect on energy-saving . Through experimenting on the perf

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19

Bao, Lingling, Jiaying Wang, Jinggang Wang, and Zheng Yu. "The heat recovery technologies of mine waste heat sources." World Journal of Engineering 14, no. 1 (2017): 19–26. http://dx.doi.org/10.1108/wje-11-2016-0125.

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Purpose Currently, China is the largest coal producer and consumer in the world. Underground mining is the main practice. In the process of deep mining, large amounts of low-temperature waste heat are available such as in the mine return air (MRA), mine water (MW), bathing waste water (BWW), etc. Without recycling, the low-temperature waste heat is discharged directly into the atmosphere or into the drainage system. The temperature range of the MRA is about 15-25°C, the relative humidity (RH) of the MRA is above 90 per cent, the temperature range of MW is about 18-20°C and the temperature of t

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20

Meyer, A., and R. T. R T Dobson. "A heat pipe heat recovery heat exchanger for a mini-drier." Journal of Energy in Southern Africa 17, no. 1 (2006): 50–57. http://dx.doi.org/10.17159/2413-3051/2006/v17i1a3364.

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This paper considers the thermal design and the experimental testing of a heat pipe (thermosyphon) heat exchanger for a relatively small commercially available mini-drier. The purpose of the heat exchanger is to recover heat from the moist waste air stream to preheat the fresh incoming air. The working fluid used was R134a and the correlations are given for the evaporator and condenser inside heat transfer coefficients as well as for the maximum heat transfer rate. The theoretical model and computer simulation program used for the thermal design calculations are described. The validity of the

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21

Przydróżny, Edward, Aleksandra Przydróżna, Sylwia Szczęśniak, and Juliusz Walaszczyk. "The influence of crop dryer operation parameters on the efficiency of energy recovery from extract air." E3S Web of Conferences 116 (2019): 00064. http://dx.doi.org/10.1051/e3sconf/201911600064.

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Crop drying, especially maize drying, occurs at low external air temperatures, which are lower than the extract air temperature. Therefore, using heat exchangers, to recover thermal energy from the extract air to preheat the cold and dry external air, results in a significant reduction in the primary energy demand for crop drying. The measurements of air parameters in the crop dryer, with a drying capacity of 19 Mg/h of maize, confirm the assumptions undertaken for the production of the heat recovery system. We apply the cross-counter-flow surface heat exchanger system to provide a significant

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22

Teng, Da, Liansuo An, Guoqing Shen, Shiping Zhang, and Heng Zhang. "Experimental Study on a Ceramic Membrane Condenser with Air Medium for Water and Waste Heat Recovery from Flue Gas." Membranes 11, no. 9 (2021): 701. http://dx.doi.org/10.3390/membranes11090701.

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Ceramic membrane condensers that are used for water and waste heat recovery from flue gas have the dual effects of saving water resources and improving energy efficiency. However, most ceramic membrane condensers use water as the cooling medium, which can obtain a higher water recovery flux, but the waste heat temperature is lower, which is difficult to use. This paper proposes to use the secondary boiler air as the cooling medium, build a ceramic membrane condenser with negative pressure air to recover water and waste heat from the flue gas, and analyze the transfer characteristics of flue ga

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23

Baradey, Y., M. N. A. Hawlader, Ahmad Faris Ismail, and Meftah Hrairi. "WASTE HEAT RECOVERY IN HEAT PUMP SYSTEMS: SOLUTION TO REDUCE GLOBAL WARMING." IIUM Engineering Journal 16, no. 2 (2015): 31–42. http://dx.doi.org/10.31436/iiumej.v16i2.602.

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Energy conversion technologies, where waste heat recovery systems are included, have received significant attention in recent years due to reasons that include depletion of fossil fuel, increasing oil prices, changes in climatic conditions, and global warming. For low temperature applications, there are many sources of thermal waste heat, and several recovery systems and potential useful applications have been proposed by researchers [1-4]. In addition, many types of equipment are used to recover waste thermal energy from different systems at low, medium, and high temperature applications, suc

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24

Zhang, Xi Liang, Jun Xu, Li Qiang Chen, and Ai Xin Feng. "Design of Grate Bed Heat Recovery Unit and Simulation Analysis." Key Engineering Materials 464 (January 2011): 366–69. http://dx.doi.org/10.4028/www.scientific.net/kem.464.366.

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For the current problem that grate bed can not recover its own waste heat in the course of cycle working, combined with the structure of the chain grate and hot air flow process, a three-section heat recovery unit of grate bed and waste heat recovery hot air flow process are designed. According to the principle of repeated convective heat transfer, the amount of recovering waste heat of heat recovery unit is estimated, and simulation analysis is conducted by using fluent software. The results show: after three heat exchange between the hot exhaust gas at around 100°C and the grate bed, the hot

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25

Ninikas, Konstantinos, Nicholas Hytiris, Rohinton Emmanuel, Bjorn Aaen, and Paul L. Younger. "Heat recovery from air in underground transport tunnels." Renewable Energy 96 (October 2016): 843–49. http://dx.doi.org/10.1016/j.renene.2016.05.015.

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26

Zaheer-Uddin, M., and J. C. Y. Wang. "Modelling and control of an air-to-air heat recovery system." Heat Recovery Systems and CHP 14, no. 2 (1994): 143–52. http://dx.doi.org/10.1016/0890-4332(94)90005-1.

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27

Vasilyev, Gregory, Nikolay Timofeev, Marina Kolesova, Igor Yurchenko, Svetlana Marchenkova, and Alexander Dmitriev. "New principles of heat recovery of ventilation emissions from multi-apartment buildings (AB)." E3S Web of Conferences 258 (2021): 11009. http://dx.doi.org/10.1051/e3sconf/202125811009.

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The article shows results of studies on assessing the effectiveness of new principles for heat recovery of exhaust air in ventilation systems of apartment buildings (AB). Technological solutions are known that provide heat recovery of the exhaust air for heating the supply air of ventilation systems. The efficiency of such solutions can reach 90%, but only in the coldest five-day period of the year with the maximum temperature difference between the exhaust and supply air. At all other times of the heating season, the efficiency of the recuperative heat exchangers decreases as the outside air

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28

Broniszewski, Mariusz, and Sebastian Werle. "The study on the heat recovery from air compressors." E3S Web of Conferences 70 (2018): 03001. http://dx.doi.org/10.1051/e3sconf/20187003001.

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Effective use of utilities in production plants is an issue that is becoming increasingly significant in energy policy of Europe. Production of compressed air consumes 3% of the total electricity consumption in Europe. In order to produce compressed air, approximately 10-20% of electricity transferred to compressor is used, the rest is lost due to lack of tightness and heat losses. The aim of this work is to evaluate the possibility to install recovery systems on air compressors to recover the lost waste heat and its management for the needs of heating office buildings/production halls and ana

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29

Gong, Guangcai, Wei Zeng, Liping Wang, and Chih Wu. "A new heat recovery technique for air-conditioning/heat-pump system." Applied Thermal Engineering 28, no. 17-18 (2008): 2360–70. http://dx.doi.org/10.1016/j.applthermaleng.2008.01.019.

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30

Khlopitsyn, Dmitrii, and Andrey Rymarov. "Heat recovery by means of a ventilation unit." E3S Web of Conferences 263 (2021): 04025. http://dx.doi.org/10.1051/e3sconf/202126304025.

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Energy consumption all over the world is constantly growing. To save energy, new technologies are being developed for the efficient use of energy resources. The goal of all new developments is to use less energy to provide the same level of energy supply for technological processes or buildings. The problem of energy saving is relevant for the ventilation system. Together with the removed air, a large amount of heat is lost, which is not advisable. In order to avoid these losses, heat recuperators began to be used, heating the cold supply air due to the warm air removed from the room. This dev

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31

Gendebien, Samuel, Jonathan Martens, Luc Prieels, and Vincent Lemort. "Designing an air-to-air heat exchanger dedicated to single room ventilation with heat recovery." Building Simulation 11, no. 1 (2017): 103–13. http://dx.doi.org/10.1007/s12273-017-0386-8.

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32

Li, Yong An, Xue Lai Liu, Jia Jia Yan, and Teng Xing. "Research on Wet Thermal Recovery Plant Used by Air Conditioning." Advanced Materials Research 424-425 (January 2012): 1155–58. http://dx.doi.org/10.4028/www.scientific.net/amr.424-425.1155.

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Based on the simulation Computational Fluid Dynamics method, in view of air conditioning with wet thermal recovery plant for heat and mass transfer characteristic, establishes air channels in three-dimensional laminar flow and heat transfer, mass transfer coupling process of mathematical physics model, discusses the air conditioning with wet thermal recovery plant air channels in temperature, concentration and pressure parameters such as distribution, application enthalpy efficiency analysis method to the heat transfer performance is evaluated. The results indicate that structure parameters of

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33

Michalak, Piotr. "Annual Energy Performance of an Air Handling Unit with a Cross-Flow Heat Exchanger." Energies 14, no. 6 (2021): 1519. http://dx.doi.org/10.3390/en14061519.

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Heat recovery from ventilation air is proven technology resulting in significant energy savings in modern buildings. The article presents an energy analysis of an air handling unit with a cross-flow heat exchanger in an office building in Poland. Measurements were taken during one year of operation, from 1 August 15 to 31 July 16, covering both heating and cooling periods. Calculated annual temperature efficiency of heat and cold recovery amounted to 65.2% and 64.6%, respectively, compared to the value of 59.5% quoted by the manufacturer. Monthly efficiency of heat recovery was from 37.6% in A

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34

Gulseven, Cem, and M. Zeki Yilmazoglu. "Heating Water and Tap Water Production with an Air-to-Water Heat Pump by Using the Waste Heat of an Oil-Free Air Compressor." E3S Web of Conferences 111 (2019): 06034. http://dx.doi.org/10.1051/e3sconf/201911106034.

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Existing buildings require optimization of the individual heating systems to decrease the energy consumption or energy use intensity (EUI) with heat recovery systems to maintain the sustainability. In terms of energy use intensity, hospitals are considered as the second highest EUI among diverse types of buildings. Therefore, to decrease energy use intensity in hospitals heat recovery options have to be analysed. In this application, oil-free air compressors’ waste heat is recovered by using air-to-water heat pumps for providing hot tap water (around 10% of total) during summer mode and heatin

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35

Fialko, N. M., R. A. Navrodskaya, G. A. Presich, G. A. Gnedash, S. I. Shevchuk, and O. V. Martiuk. "INCREASE OF ECOLOGICAL EFFECTIVENESS OF COMPLEX HEAT-RECOVERY SYSTEMS FOR BOILER PLANTS." Industrial Heat Engineering 40, no. 2 (2018): 27–32. http://dx.doi.org/10.31472/ihe.2.2018.04.

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It is revealed that the humidifying of blown air in complex heat recovery systems of gas-fired boiler plants provides the significant reduction in the concentration of nitrogen oxides in exhaust-gases due to the suppression of their formation in the boiler furnace when moisture is introduced with this air.  Problems of environmental protection and energy-saving became priority in world practice. The main directions of deciding these pressing problems in municipal heat-power engineering is to improve the environmental indicators of heating boiler plants and increase the efficiency of usin

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36

Nehasil, Ondřej, and Daniel Adamovský. "Utilization of Indirect Adiabatic Cooling in Heat Recovery Device." Advanced Materials Research 649 (January 2013): 307–10. http://dx.doi.org/10.4028/www.scientific.net/amr.649.307.

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Decreasing heat load of buildings and their cooling is a major problem affecting the quality of both inner environment and air-conditioning system's energy demands. One of the alternatives using regular components of a standard air-conditioning unit is indirect adiabatic cooling. By means of a customized calculation procedure, this article demonstrates performance possibilities, energy savings and the economic benefits of indirect adiabatic cooling connected with a heat recovery heat exchanger on two air-conditioning unit alternatives.

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37

Zhang, Zi-Yang, Chun-Lu Zhang, Mei-Cai Ge, and Yue Yu. "A frost-free dedicated outdoor air system with exhaust air heat recovery." Applied Thermal Engineering 128 (January 2018): 1041–50. http://dx.doi.org/10.1016/j.applthermaleng.2017.09.091.

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38

Wang, Joseph C. Y. "Practical thermal design of run-around air-to-air heat recovery system." Journal of Heat Recovery Systems 5, no. 6 (1985): 493–501. http://dx.doi.org/10.1016/0198-7593(85)90216-4.

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39

Yao, Xue Li, Song Lin Yi, Xiao Yan Zhang, and Bi Guang Zhang. "A Preliminary Study of Self-Exciting Mode Oscillating-Flow Heat Pipe Used in the Heat Recovery of Wood Drying." Advanced Materials Research 160-162 (November 2010): 1112–17. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.1112.

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First building up the test bed of heat recovery unit which made use of Self-Exciting Mode Oscillating-Flow Heat Pipe heat exchanger, simulated the conventional wood drying chamber exhaust conditions, this paper compared and analyzed the different heat recovery efficiency of this heat exchanger under different operating modes. The results showed that: when the air flow and temperature at the hot end kept steady, the heat recovery efficiency increased as the relative humidity increasing; while the air flow and relative humidity at the hot end remained stable, the heat recovery efficiency decreas

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40

Wang, Chuang, and Rui Li. "The Analysis of Heat Recovery Efficiency and Influencing Factors in Air System." Advanced Materials Research 516-517 (May 2012): 1257–61. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.1257.

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It is one of the ways that realize the energy conservation of the building to use effectively extracting air heat recovery devices. In this paper, influence factors and heat recovery efficiency in air-conditioning system were analyzed, and design parameters of heat recovery devices were discussed with the view of saving energy.

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41

Fialko, N., A. Stepanova, R. Navrodskaya, S. Shevchuk, and G. Sbrodova. "Optimization of operating parameters a heat-recovery exchanger of a boiler plant based on the exergy approach." Energy and automation, no. 2(54) (June 22, 2021): 5–16. http://dx.doi.org/10.31548/energiya2021.02.005.

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Abstract. The results of operating parameters optimization of the air-heating heat-recovery exchanger of complex heat recovery system of a gas-fired boiler designed for heating water and blown air are presented. Air heating in this heat-recovery exchanger is realized by deep cooling of the waste exhaust gases, that is, with a change in their moisture content during the heat recovery process. The possibilities of using a complex technique based on the structural-variant method and exergy analysis methods for the optimization of the heat-recovery exchanger are analyzed. The developed structural

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42

Kano, M. "A Combustion Air Changeover Control for Heat Recovery Boilers." IFAC Proceedings Volumes 25, no. 1 (1992): 69–74. http://dx.doi.org/10.1016/s1474-6670(17)50431-0.

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43

Papakostas, Konstantinos, Ioannis Tiganitis, and Agis Papadopoulos. "Energy and economic analysis of an auditorium’s air conditioning system with heat recovery in various climatic zones." Thermal Science 22, Suppl. 3 (2018): 933–43. http://dx.doi.org/10.2298/tsci170916026p.

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In many heating, ventilation and air-conditioning (HVAC) applications, heat recovery devices are installed, aiming at reducing energy consumption. Especially in buildings requiring a high percentage of outside air for ventilation, there is a high potential for heat recovery from exhaust air. Climatic conditions are an important parameter which affects the recovered heat and the payback period of the heat recovery device. In this paper, a 250 person auditorium is used as a model to estimate the applicability of an air-to-air fixed-plate heat exchanger installed in the air handling unit of the H

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44

Lv, Jian, Fang Yu, Guo Min Zhao, Jun Mei Zhang, and Hong Xing Yang. "Investigation on Heat Pipe Application in Central Air-Conditioning Systems." Applied Mechanics and Materials 170-173 (May 2012): 2546–49. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.2546.

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An experimental test has been conducted to determine the effect of heat pipe heat exchangers for pre-cooling and re-heating performance of central air-conditioning systems in Hung Hom Sport Centre. The objectives of this research project are to investigate the energy recovery efficiency from using the heat pipe heat exchangers in air conditioning system. The annual energy saving by using the heat pipe heat exchangers. The effect of energy recovery efficiency is significant.

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45

Li, Yon Gan, Hua Min Chen, Xue Lai Liu, and Wei Tao Luan. "Simulation on Resistance Characteristics of Air-to-Air Energy Recovery Equipment." Advanced Materials Research 243-249 (May 2011): 4975–78. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.4975.

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Through carried out computer simulation analysis on air-to-air energy recovery equipment，the analysis research mainly aims at pressure drop characteristics among the factors which influence the core of the heat exchanger，the results show that：as the plate spacing, plate width, plate height, as well as changes in a secondary air inlet velocity core，all of them will have different effects on the air-to-air energy recovery unit of the resistance loss, which is useful to air-to-air energy recovery unit to optimize the design.

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46

Radchenko1, Mykola, Andrii Radchenko1, Dariusz Mikielewicz2, Serhiy Forduy1, Anatolii Zubarev 1, and Viktor Khaldobin1. "Enhancing the exhaust heat recovery in integrated energy plant." Joupnal of New Technologies in Environmental Science 7, no. 4 (2020): 3–16. http://dx.doi.org/10.30540/jntes-2020-4.1.

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The efficiency of exhaust heat recovery in typical integrated energy plant on the base of reciprocating gas engines with absorption lithium-bromide chiller for combined electricity, heat and refrigeration supply of the factory "Sаndorа"–"PepsiCо Ukraine" is analyzed. The reserves of decreasing the heat exhausted into atmosphere are revealed on the base of monitoring data and their realization through conversion into refrigeration for cooling the engine cyclic air is proposed. Some scheme decisions of improved and innovative exhaust heat recovery systems providing deep heat conversing into refr

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47

Jafarinejad, Tohid, Mohammad Behshad Shafii, and Ramin Roshandel. "Multistage recovering ventilated air heat through a heat recovery ventilator integrated with a condenser-side mixing box heat recovery system." Journal of Building Engineering 24 (July 2019): 100744. http://dx.doi.org/10.1016/j.jobe.2019.100744.

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Mukherjee, Sanjay, Abhishek Asthana, Martin Howarth, and Jahedul Islam Chowdhury. "Techno-Economic Assessment of Waste Heat Recovery Technologies for the Food Processing Industry." Energies 13, no. 23 (2020): 6446. http://dx.doi.org/10.3390/en13236446.

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Abstract:

The food manufacturing sector is one of the most dominant consumers of energy across the globe. Food processing methods such as drying, baking, frying, malting, roasting, etc. rely heavily on the heat released from burning fossil fuels, mainly natural gas or propane. Less than half of this heat contributes to the actual processing of the product and the remaining is released to the surroundings as waste heat, primarily through exhaust gases at 150 to 250 °C. Recovering this waste heat can deliver significant fuel, cost and CO2 savings. However, selecting an appropriate sink for this waste heat

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Vizitiu, Robert Ştefan, Gavril Sosoi, Andrei Burlacu, and Florin Emilian Ţurcanu. "CFD analysis of a dual heat recovery system." E3S Web of Conferences 85 (2019): 02007. http://dx.doi.org/10.1051/e3sconf/20198502007.

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This paper presents a CFD Heat Transfer Analysis of an originally designed system for heat recovery in the building sector. The heat exchanger has a dual role, which means it will produce simultaneously hot water and warm air. The key to the efficiency of the heat exchanger is the heat pipe system which recovers thermal energy from residual hot water and transfers it to the secondary agents. The paper includes a case study structured by different mesh distributions and flow regimes. The purpose of the heat exchanger is to reduce the costs of producing thermal energy and to increase the overall

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50

Remeli, Muhammad Fairuz, Abhijit Date, Baljit Singh, and Aliakbar Akbarzadeh. "Passive Power Generation and Heat Recovery from Waste Heat." Advanced Materials Research 1113 (July 2015): 789–94. http://dx.doi.org/10.4028/www.scientific.net/amr.1113.789.

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This research presents a passive method of waste heat recovery and conversion to electricity using Thermo-Electric Generator (TEG). For this purpose, a lab scale bench-top prototype of waste heat recovery and conversion system was designed and fabricated. This bench top system consists of the thermoelectric generators (TEGs) sandwiched between two heat pipes, one connected to the hot side of the TEG and the second connected to the cold side of the TEG. A 2 kW electric heater was used to replicate the waste heat. An electric fan was used to provide air into the system. A theoretical model was d

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