{"id":940,"date":"2022-08-12T18:12:13","date_gmt":"2022-08-12T16:12:13","guid":{"rendered":"https:\/\/cieplowent.pl\/w-numerze-7-8-2022\/"},"modified":"2022-09-09T05:03:43","modified_gmt":"2022-09-09T03:03:43","slug":"w-numerze-7-8-2022","status":"publish","type":"post","link":"https:\/\/cieplowent.pl\/en\/w-numerze-7-8-2022\/","title":{"rendered":"Issue 7-8\/2022"},"content":{"rendered":"\n
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HEATING, DISCTRIC-HEATING<\/strong><\/p>\n\n\n\n

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\u2794 W\u0142adys\u0142aw Szyma\u0144ski, Bo\u017cena Babiarz: Influence of Thermal Inertia of The Building on the Heat Load Diagram<\/strong>
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DOI: 10.15199\/9.2022.7-8.1<\/em><\/p>\n<\/div>\n\n\n\n

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\n Abstract <\/span>\n
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Keywords: heat load, thermal inertia, temperature variability

\nAbstract
\nA specific feature of district heating systems is the fact that the heat load of the system is highly variable through the year. The heat load diagram is used to analyze this variability with multiple applications. The basis for the preparation of the load diagram is the variability of the outside air temperature, characteristic for the location of the object for which the diagram is prepared. The methodology of drawing up the diagram assumes that the heat loss for heating and ventilation is proportional to\nthe temperature difference between internal and external air at any time, ignoring the thermal inertia of building partitions.\nIn the presented article, an analysis of the influence of thermal inertia of partitions on the thermal loads\u2019 variability during a year was carried out, in comparison with the load diagram used so far. The calculation methodology developed earlier was used to determine the thermal inertia. As a result, a significant difference was demonstrated between the theoretical and real course of the thermal load diagram. The results were confirmed by examples of changes in heat consumption in real buildings.<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

\u2794 Leszek Konopka: Comparative Analysis of Trigeneration Systems Working for a Hospital Facility.<\/strong> Part I<\/p>\n\n\n\n

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DOI: 10.15199\/9.2022.7-8.2<\/em><\/p>\n<\/div>\n\n\n\n

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Keywords: absorption chillers, combined Heat and Power, trigeneration, energy efficiency

\nAbstract
\nIncreasingly higher requirements of energy efficiency of devices and installations make it necessary to use solutions aimed at minimizing energy consumption and reducing environmental pollution in the form of emissions of harmful substances or waste resulting from the process of burning solid fuels. The answer to such needs are modern solutions based on high-efficiency devices, as well as solutions that allow the use of waste heat. And all this is used in order to protect the environment and at the same time use energy and heat power in the most efficient way. Therefore, the improvement of energy efficiency use and energy production is needed as well as promotion of renewable energy use leading to reduce the consumption of traditional energy carriers. In this thesis an assessment of the absorption chiller performance is presented. The paper presents an overview of combined heating, cooling and power sources (called trigeneration or CHCP) considering the impact of changing the source of cold on the operation of the entire system. The analysis was carried out on the basis of own studies on the change of the entire system from an absorption chiller to a compressor chiller. The impact of this change on the operation of the entire system and the investment and operating costs incurred were also analyzed. The analysis of the benefits associated with the possibility of producing cold by an absorption chiller operating for the air conditioning needs of a hospital building was also carried out.\n<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

\u2794 Tomasz Cholewa, Alicja Siuta-Olcha: for Heat as a Method of Forecast Control of the Heating System in Building. Part 2: System Operation and Energy Savings<\/strong><\/p>\n\n\n\n

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DOI: 10.15199\/9.2022.7-8.3<\/em><\/p>\n<\/div>\n\n\n\n

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Keywords: forecast control, forecasting heat consumption, building energy model, control of heating, energy efficiency in existing buildings, smart buildings

\nAbstract
\nOne of the possibilities to increase the energy efficiency of heating systems in existing buildings is the use of forecast control. However, there is still no simple and easy-to-apply method for forecasting control taking into account internal (user influence) and external (weather conditions) factors. Therefore, this article presents the second part of information on the method of forecast control of heating systems, which is easy to apply in existing buildings. In particular, the method of taking into account the preferences of users in the form of an equivalent indoor temperature and the method of implementation of forecast control in the building were presented. It was found that the use of forecast control of heating system may allow for energy savings at the level of over 10% (without reducing thermal comfort in heated rooms), which, with the simple payback time (about 1 heating season), makes this solution one of the basic methods for increasing energy efficiency in existing and new buildings.<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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\u2794 Ma\u0142gorzata Niest\u0119pska: Application of Econometric Models in The Process of Digital Transformation of Heat Supplies<\/strong><\/p>\n\n\n\n

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DOI: 10.15199\/9.2022.7-8.4<\/em><\/p>\n<\/div>\n\n\n\n

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\n Abstract <\/span>\n
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Keywords: econometric modeling, heating, digitization, energy, process control

\nAbstract
\nThe vision of implementing the next stage of green transformation\nin the form of the negotiated package \u201cfit for 55\u201d raises\nconcerns of representatives of the energy and heating industry in\nPoland. These concerns are mainly related to the scale of investment\nchallenges and the costs already incurred under the CO2\nemission allowance trading system, i.e. the EU ETS. Russia\u2019s\ninvasion of Ukraine has revised the current directions of the\npolicy pursued as part of the transformation that is being carried\nout to switch from fossil fuels to renewable energy sources, with\nthe priority of gas as a transitional fuel. Efficiency has again\nbecome the most important factor of transformation, which is\nsignificantly supported by the digitization of energy management\nat every level. Starting from minimizing the use of primary\nenergy at the generation stage, through transmission and final\nconsumption. Efficiency thanks to the use of digital tools of process\ndecision optimization models, which also aim at economic\noptimization, should reduce energy costs throughout the entire\nlife chain. The article presents examples of the implementation\nof econometric models for programming network operation,\nwhich, supplemented with elements of artificial intelligence using\nan updated database, can be used in various spheres of process\nand business decision-making. Digital analysis and an early\nwarning system using this analysis improves the work efficiency\nand communication of the systems. Heating companies, largely\nresponsible for the success of \u201cfit for 55\u201d, now have a lot of data\nmeasured in the processes of energy production and supply, but\nthey do not always fully use these resources. Meanwhile, effective\ndigitization, aimed at reducing energy consumption, does\nnot mean the measurement and recording itself, but the purposeful\nanalysis of the data set for modeling the process and formulating\nrecommendations for the right decision.<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

\u2794 Mariusz Pi\u0119ko\u015b, Piotr Natkaniec, Pawe\u0142 Jastrz\u0119bski: Application of Turbine Pressure Stabilization Systems in Island Power Supply Systems of District Heating Object at MPEC S.A. in Krakow<\/strong><\/p>\n\n\n\n

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DOI: 10.15199\/9.2022.7-8.5<\/em><\/p>\n<\/div>\n\n\n\n

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Keywords: turbine plants, dispatch pressure, district heating network

\nAbstract
\nThis paper describes the way of development of turbine installations\nused to stabilise the disposable pressure in the district\nheating network belonging to Municipal Thermal Energy Enterprise\nS.A. (MPEC S.A.) in Krakow with the simultaneous use of\nrecovered and transformed electrical energy in network facilities.\nThrough the presentation of methods for the recovery of mechanical\nenergy of the heating medium and examples of the use of turbine\ninstallations in district heating networks, a potential solution\nto the problems of the district heating company associated with an\nexcess of disposable pressure in networks and the effects of work\ncarried out to date in Krakow were shown. Conclusions from the\ntest installations carried out to date and a system operating under\nactual operating conditions in a district heating chamber show the\noperating methodology and the real benefits of turbine installations\nfor the control of dispatching pressure.\n<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

\u2794 GeoGrid DH<\/strong> \u2013 gotowe rozwi\u0105zanie GIS usprawniaj\u0105ce zarz\u0105dzanie sieci\u0105 ciep\u0142ownicz\u0105 w mniejszych przedsi\u0119biorstwach<\/p>\n\n\n\n

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Abstract
\nJe\u017celi w swojej pracy potrzebujesz aktualnych informacji\no przebiegu sieci ciep\u0142owniczej, przygotowujesz\nsystem ciep\u0142owniczy do sezonu grzewczego, chcesz podejmowa\u0107\ndecyzje o rozwoju sieci na bazie kompletnych\ni wiarygodnych informacjach o jej stanie oraz zapotrzebowaniu\nna ciep\u0142o, poznaj GeoGrid DH. To stworzone\nprzez Globem\u0119 rozwi\u0105zanie GIS-owe, oparte na uniwersalnym\nsystemie informacji geograficznej, do zarz\u0105dzania\nsieci\u0105 ciep\u0142ownicz\u0105.<\/p> \n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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

\u2794 Katarzyna Lisik, Robert Cichowicz: Microclimate in the Pool Hall<\/strong><\/p>\n\n\n\n

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DOI: 10.15199\/9.2022.7-8.6<\/em><\/p>\n<\/div>\n\n\n\n

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Keywords: microclimate, microorganisms, air pollution

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\nIn todays world, especially recently in the era of a pandemic,\npeople are increasingly both looking for and using active forms\/\nmodes of life to spend their so-called \u201efree time\u201d. Recently, not\nonly among children and adolescents, but also among adults, it\ncan be noticed that sports activity has become a priority. One\nof the most frequently chosen sports activities is swimming\n(both recreational and sports), which can now be carried out\nin many larger or smaller indoor swimming pools. As a result,\nmore and more people stay in rooms\/buildings with a specific\nmicroclimate, favoring the emergence\/development of various\ntypes of microbial infections (in particular, various types of\nmycoses). To prevent this, in such facilities as indoor swimming\npools, it is very important to correctly select mechanical\nventilation, which would take into account numerous external\nand internal parameters of the room. As a consequence, the\ntask of pool ventilation is to maintain a proper microclimate\ninside the pool hall. At the same time, it should be remembered\nthat unfavorable temperature and humidity conditions may\ncontribute to the discomfort of pool users, but also to the development\nof various types of microorganisms. What is more,\nmoisture and fungus may have a negative effect on the building\nstructure and contribute to the destruction of building partitions,\nand the physical and biological corrosion of building\nelements may threaten the safe use of the facility. Therefore,\nin order to check the scale of these phenomena, it was decided\nto analyze the microclimatic and microbiological conditions in\nthe large building of the swimming pool hall (in the building\nof the Academic Sports and Didactic Center \u201eZatoka Sportu\u201d\nin \u0141\u00f3d\u017a). Thanks to this, information was obtained about the\ntemperature range, relative humidity, air flow velocity and the\nnumber of microorganisms present in the air in the swimming\npool hall both in time (with low load on the sports facility and\nduring the greatest load on the facility, i.e. when the greatest\nsports activity was carried out in it), as well as depending on\nthe location and distance\/height from the pool basin. It seems\nthat performing this type of measurements may be helpful, and\nmaybe even necessary, to pay attention to the importance of\nthe correct selection, design and use of mechanical ventilation\nin this type of facility.\n<\/p>\n <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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HEATING, DISCTRIC-HEATING \u2794 W\u0142adys\u0142aw Szyma\u0144ski, Bo\u017cena Babiarz: Influence of Thermal Inertia of The Building on the Heat Load Diagram DOI: 10.15199\/9.2022.7-8.1 Abstract Keywords: heat load, thermal inertia, temperature variability Abstract A specific feature of district heating systems is the fact that the heat load of the system is highly variable through the year. The heat […]<\/p>\n","protected":false},"author":3,"featured_media":877,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[33],"tags":[],"class_list":["post-940","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\/940","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=940"}],"version-history":[{"count":0,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/posts\/940\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/media\/877"}],"wp:attachment":[{"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/media?parent=940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/categories?post=940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cieplowent.pl\/en\/wp-json\/wp\/v2\/tags?post=940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}