{"id":2157,"date":"2023-06-22T10:46:42","date_gmt":"2023-06-22T08:46:42","guid":{"rendered":"https:\/\/cieplowent.pl\/in-issue-6-2023\/"},"modified":"2026-01-05T13:56:20","modified_gmt":"2026-01-05T12:56:20","slug":"in-issue-6-2023","status":"publish","type":"post","link":"https:\/\/cieplowent.pl\/en\/in-issue-6-2023\/","title":{"rendered":"In issue 6\/2023"},"content":{"rendered":"\n

HEATING, DISCTRIC-HEATING<\/strong><\/p>\n\n

\u2794 Marian Rubik:<\/strong> Heat pump technology in the energy transition of district heating – challenges, risks and expectations. Part IV<\/p>\n\n

\n
\n

DOI: 10.15199\/9.2023.4.1<\/em><\/p>\n<\/div>\n\n\n\n

\n
\n Abstract <\/span>\n
\n

Keywords: CAPEX, geothermal heat plant, district heating\nsystem, heat plant of the future, clean heat, efficient\ndistrict heating system, LCOH, OPEX, flammability and explosiveness\nfactor, heat pump, global warming potential,\nP2G, energy transformation, V2G\nAbstract\nThe topic of the article is the role heat pumps already play\nand will play in the near future, in the transformation of the\nEnergy heating and district heating. It is clear that\nWithout greater use of heat pumps, it will be impossible\nDecarbonization of construction, electrification of heating\/cooling\nand achieving energy efficient status\nDistrict heating system, especially in the case of systems\nof low and medium power. However, the use of heat pumps creates\nmany denominations and threats not only technical and economic,\nbut also safety and reliability of operation\nrelated, among other things, to pump operating factors\nHeat and the extraction of low-temperature heat from the lower\nsources. In addition, the parameters of the useful heat produced\nin heat pumps force significant changes in transmission networks\nand consumer installations (central heating and hot water).<\/p>\n

<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

\u2794 S zymon Kasowski, Beata Anwajler:<\/strong> Effect of piping modification and shell-and-tube heat exchanger design on heat transfer intensification parameters – model and numerical simulation in ANSSYS<\/p>\n\n

\n
\n

DOI: 10.15199\/9.2023.6.2<\/em><\/p>\n<\/div>\n\n\n\n

\n
\n Abstract <\/span>\n
\n

Keywords: shell and tube heat exchanger, flow turbulization, tube overpressure, flow simulation\nAbstract\nThe article presents a shell-and-tube heat exchanger\nlow power with flow and thermal analysis performed\nfor two variants including straight pipes and embossed pipes\nwhich is a modification that intensifies the exchange process\nHeat. Both exchangers are designed as four-way exchangers\nIn order to minimize their dimensions. The purpose of the designed\nof the heat exchanger is to heat domestic water\nby means of heat extracted from hot water transferred\nsieci\u0105 ciep\u0142ownicz\u0105. The article presents the author’s layout\npartitions characterized by a constant number of pipes and a constant surface area\nfactor flow in each of the four flow paths\nwater. A computational process supported by\nnumerical simulation in ANSYS software, which modeled the\nFluid flow through the designed heat exchangers.\nThe study provides results comparing and evaluating the impact of the\nmodifications to the heat transfer process. As a result of the use of\nin the shell-and-tube heat exchanger of pressed tubes increased\nHeat exchange intensity by 34.6% relative to the exchanger\nWith straight pipes with a diameter of 16 mm. Significant improvement\nThe intensity of heat exchange has significantly affected the process\nMiniaturization of the exchanger.<\/p>\n

<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

\u2794 Grzegorz Waryan, Marcin Czerwinski:<\/strong> Trigeneration gas generator with heat recovery from an internal combustion engine<\/p>\n\n

\n
\n

DOI: 10.15199\/9.2023.6.3<\/em><\/p>\n<\/div>\n\n\n\n

\n
\n Abstract <\/span>\n
\n

Keywords: trigeneration, heat pump, gas chiller\nAbstract\nThe article addresses issues related to raising the\nefficiency of trigeneration gas units “producing”\nheat, cooling and electricity in a combined manner.\nA new concept was also presented with regard to construction,\nAs well as an innovative approach to the way the aggregate is controlled.\nIn the construction of the device, special emphasis was placed on\nHeat recovery, both coming directly from the radiator\nof the internal combustion engine as well as from the exhaust gases, by cooling them down\nAnd the condensation of the water vapor contained in them. Warmth\nwas also obtained from the engine body, the compressor that drives the\nrefrigeration system and power generator housings.\nThe manner of control includes both primary objectives and\nalso power supply and correct operation of equipment and installations entering\nin the composition of the trigenerator and their optimal use\nto increase efficiency, durability and functionality\nThe device as a whole.<\/p>\n

<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

\u2794 Jaros\u0142aw Kaczor, Marta Zasada-Wi\u015bniewska:<\/strong> Economic analysis of the application of a photovoltaic installation cooperating with an air heat pump for the needs of a single-family building in the face of the current law in Poland. Part 1<\/p>\n\n

\n
\n

DOI: 10.15199\/9.2023.6.4<\/em><\/p>\n<\/div>\n\n\n\n

\n
\n Abstract <\/span>\n
\n

Keywords: renewable heat source, heating, cells\nphotovoltaic, heat pump\nAbstract\nThe article presents an economic analysis of the use of\nA photovoltaic installation with a designed capacity of 7.2 kWp. Analysis,\nin this and the following articles, will be carried out\nIn light of the changing law in Poland on renewable\nenergy sources. The first article presents an analysis of\nSettlement of the energy produced on the basis of the so-called. old\nsystem, based on discounts of 1:0.8. At work\nAn attempt was made to analyze the profitability of the above installation in the selected\nvariant and the payback time was calculated. In the following\nArticles will present an analysis of the cost-effectiveness of\napplication of photovoltaic installation using\nA new billing system for the sale of surplus energy\nInto the network. In addition, the designed PV installation will be\nexpanded with battery energy storage facilities, the company said.\nIn the amended RES Act.\nPhotovoltaic installations have been designed to meet the needs of the\nA single-family house, the heat source of which will be a pump\nHeat.<\/p>\n

<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

<\/div>\n\n

VENTILATION, AIR-CONDITIONING<\/strong><\/p>\n\n

\u2794 Agata Wrzochal, Wiktoria Romaniec, Ewa Zender-\u015awiercz:<\/strong> Performance analysis of decentralized facade ventilation equipment<\/p>\n\n

\n
\n

DOI: 10.15199\/9.2023.6.5<\/em><\/p>\n<\/div>\n\n\n\n

\n
\n Abstract <\/span>\n
\n

Keywords: facade ventilation, alternate supply\/\nexhaust, airflows\nSynopsis: \nIntroduction. Trends moving toward energy efficiency in buildings\nare often associated with inadequate air exchange in buildings\nand deterioration of indoor air quality. One\nOf the solutions to improve the situation are installations with alternating\nsupply and exhaust. The research presented in the article\nA decentralized facade ventilation unit was subjected to.\nIts task is to improve the indoor microclimate.\nObjective. The purpose of the study is to analyze the size of the airflow\ndepending on the heat recovery exchanger used.\nMethods. A decentralized facade device was analyzed\nrealizing alternate supply and exhaust by opening the\nand closing of the dampers, which direct the airflow to the\nwire networks. The device is equipped with a fan and\nHeat recovery exchanger section. Three configurations were studied\nequipment (without heat recovery exchanger, exchanger\nfilled with gravel, exchanger filled with gypsum).\nThree cycle setting options were analyzed: 2, 6 and 10 minutes.\nThe supply\/exhaust airflow was measured at the\nusing a balometer.\nConclusions and reference to practical applications. Test results\nshow that the air flow supplied\/exhausted by the\ndevice of decentralized facade ventilation is sufficient\nFor ventilating living quarters. Least\nairflows were observed in the variant with the exchanger\nFor heat recovery filled with gravel. Stream\nof exhaust air in each case analyzed\nwas smaller than the supply air flow rate. Device\nanalyzed effectively exchanges air, but the requirements\nThe laws in force in Poland do not allow the use of\nthis type of solution as a way to ventilate\npremises. Hence, changes in regulations are necessary\nAs well as subsequent studies regarding the effectiveness of the use of\nHeat recovery and thermal comfort capabilities.<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

HEATING, DISCTRIC-HEATING \u2794 Marian Rubik: Heat pump technology in the energy transition of district heating – challenges, risks and expectations. Part IV DOI: 10.15199\/9.2023.4.1 Abstract Keywords: CAPEX, geothermal heat plant, district heating system, heat plant of the future, clean heat, efficient district heating system, LCOH, OPEX, flammability and explosiveness factor, heat pump, global warming potential, […]<\/p>\n","protected":false},"author":3,"featured_media":2124,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[33],"tags":[],"class_list":["post-2157","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archives"],"acf":[],"_links":{"self":[{"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/posts\/2157","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/comments?post=2157"}],"version-history":[{"count":1,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/posts\/2157\/revisions"}],"predecessor-version":[{"id":3806,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/posts\/2157\/revisions\/3806"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/media\/2124"}],"wp:attachment":[{"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/media?parent=2157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/categories?post=2157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/tags?post=2157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}