Academic literature on the topic 'Heating and cooling networks'

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Journal articles on the topic "Heating and cooling networks"

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Zeh, Robin, Björn Ohlsen, David Philipp, David Bertermann, Tim Kotz, Nikola Jocić, and Volker Stockinger. "Large-Scale Geothermal Collector Systems for 5th Generation District Heating and Cooling Networks." Sustainability 13, no. 11 (May 27, 2021): 6035. http://dx.doi.org/10.3390/su13116035.

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Low temperature district heating and cooling networks (5GDHC) in combination with very shallow geothermal energy potentials enable the complete renewable heating and cooling supply of settlements up to entire city districts. With the help of 5GDHC, heating and cooling can be distributed at a low temperature level with almost no distribution losses and made useable to consumers via decentralized heat pumps (HP). Numerous renewable heat sources, from wastewater heat exchangers and low-temperature industrial waste heat to borehole heat exchangers and large-scale geothermal collector systems (LSC), can be used for these networks. The use of large-scale geothermal collector systems also offers the opportunity to shift heating and cooling loads seasonally, contributing to flexibility in the heating network. In addition, the soil can be cooled below freezing point due to the strong regeneration caused by the solar irradiation. Multilayer geothermal collector systems can be used to deliberately generate excessive cooling of individual areas in order to provide cooling energy for residential buildings, office complexes or industrial applications. Planning these systems requires expertise and understanding regarding the interaction of these technologies in the overall system. This paper provides a summary of experience in planning 5GDHC with large-scale geothermal collector systems as well as other renewable heat sources.
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Heller, Daniel, Alex Heller, Samir Moujaes, Shelley J. Williams, Ryan Hoffmann, Paul Sarkisian, Kaveh Khalili, et al. "Research: Testing of a Novel Portable Body Temperature Conditioner Using a Thermal Manikin." Biomedical Instrumentation & Technology 50, no. 5 (September 1, 2016): 336–48. http://dx.doi.org/10.2345/0899-8205-50.5.336.

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Abstract A battery-operated active cooling/heating device was developed to maintain thermoregulation of trauma victims in austere environments while awaiting evacuation to a hospital for further treatment. The use of a thermal manikin was adopted for this study in order to simulate load testing and evaluate the performance of this novel portable active cooling/heating device for both continuous (external power source) and battery power. The performance of the portable body temperature conditioner (PBTC) was evaluated through cooling/heating fraction tests to analyze the heat transfer between a thermal manikin and circulating water blanket to show consistent performance while operating under battery power. For the cooling/heating fraction tests, the ambient temperature was set to 15°C ± 1°C (heating) and 30°C ± 1°C (cooling). The PBTC water temperature was set to 37°C for the heating mode tests and 15°C for the cooling mode tests. The results showed consistent performance of the PBTC in terms of cooling/heating capacity while operating under both continuous and battery power. The PBTC functioned as intended and shows promise as a portable warming/cooling device for operation in the field.
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Charlebois, Daniel A., Kevin Hauser, Sylvia Marshall, and Gábor Balázsi. "Multiscale effects of heating and cooling on genes and gene networks." Proceedings of the National Academy of Sciences 115, no. 45 (October 19, 2018): E10797—E10806. http://dx.doi.org/10.1073/pnas.1810858115.

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Most organisms must cope with temperature changes. This involves genes and gene networks both as subjects and agents of cellular protection, creating difficulties in understanding. Here, we study how heating and cooling affect expression of single genes and synthetic gene circuits inSaccharomyces cerevisiae. We discovered that nonoptimal temperatures induce a cell fate choice between stress resistance and growth arrest. This creates dramatic gene expression bimodality in isogenic cell populations, as arrest abolishes gene expression. Multiscale models incorporating population dynamics, temperature-dependent growth rates, and Arrhenius scaling of reaction rates captured the effects of cooling, but not those of heating in resistant cells. Molecular-dynamics simulations revealed how heating alters the conformational dynamics of the TetR repressor, fully explaining the experimental observations. Overall, nonoptimal temperatures induce a cell fate decision and corrupt gene and gene network function in computationally predictable ways, which may aid future applications of engineered microbes in nonstandard temperatures.
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Brennenstuhl, Marcus, Robin Zeh, Robert Otto, Ruben Pesch, Volker Stockinger, and Dirk Pietruschka. "Report on a Plus-Energy District with Low-Temperature DHC Network, Novel Agrothermal Heat Source, and Applied Demand Response." Applied Sciences 9, no. 23 (November 23, 2019): 5059. http://dx.doi.org/10.3390/app9235059.

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District heating and cooling networks can pose the possibility of including a variety of renewable energy sources as well as waste heat into a district’s heat supply concept. Unfortunately, low demand densities as they increasingly occur through higher building energy standards and in rural areas render conventional heating and cooling networks inefficient. At the same time, power-to-heat is becoming more and more important to make use of a larger amount of renewable energy sources on the electrical side by providing more flexibility by means of demand response and demand-side management. Within this work, a rural Plus-Energy settlement is presented addressing those topics by a low-temperature district heating and cooling network connected to a novel agrothermal collector supplying 23 residential buildings with decentralized heat pumps and PV systems. The collector, the network, and six of the buildings are equipped with comprehensive monitoring equipment. Within those buildings, forecast and optimization algorithms are implemented to adapt their heat pump operation to enable an increase of self-consumption, to include flexible electricity tariffs, and also to participate in power markets. Thereby, for the low-temperature district heating and cooling network, it has been shown that the concept can operate in the future at competitive heat costs. On the building level, up to 50% of cost savings could be achieved under ideal conditions with the optimization of the self-consumption of PV electricity. However, to ensure optimal results, the individual system components have to be dimensioned for this task.
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del Hoyo Arce, Itzal, Saioa Herrero López, Susana López Perez, Miika Rämä, Krzysztof Klobut, and Jesus A. Febres. "Models for fast modelling of district heating and cooling networks." Renewable and Sustainable Energy Reviews 82 (February 2018): 1863–73. http://dx.doi.org/10.1016/j.rser.2017.06.109.

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Sporleder, Maximilian, Max Burkhardt, Thomas Kohne, Daniel Moog, and Matthias Weigold. "Optimum Design and Control of Heat Pumps for Integration into Thermohydraulic Networks." Sustainability 12, no. 22 (November 12, 2020): 9421. http://dx.doi.org/10.3390/su12229421.

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Germany has become one of the leading players in the transformation of the electricity sector, now having up to 42% of electricity coming from renewable sources. However, the transformation of the heating sector is still in its infancy, and especially the provision of industrial process heating is highly dependent on unsustainable fuels. One of the most promising heating technologies for renewable energies is power-to-heat, especially heat pump technology, as it can use renewable electricity to generate heat efficiently. This research explores the economic and technical boundary conditions regarding the integration of heat pumps into existing industrial thermohydraulic heating and cooling networks. To calculate the optimum design and control of heat pumps, a mixed-integer linear programming model (MILP) is developed. The model seeks the most cost-efficient configuration of heat pumps and stratified thermal storage tanks. Additionally, it optimizes the operation of all energy converters and stratified thermal storage tanks to meet a specified heating and cooling demand over one year. The objective function is modeled after the net present value (NPV) method and considers capital expenditures (costs for heat pumps and stratified thermal storage tanks) and operational expenditures (electricity costs and costs for conventional heating and cooling). The comparison of the results via a simulation model reveals an accuracy of more than 90%.
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Kim, Min-Hwi, Deuk-Won Kim, Dong-Won Lee, and Jaehyeok Heo. "Experimental Analysis of Bi-Directional Heat Trading Operation Integrated with Heat Prosumers in Thermal Networks." Energies 14, no. 18 (September 17, 2021): 5881. http://dx.doi.org/10.3390/en14185881.

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District cooling and heating methods that can utilize highly efficient heat pumps and various unused new and renewable types of energy are required to achieve low carbon emissions and zero energy usage in buildings and community units. The technical requirements for the implementation of decentralized thermal networks and heat trading are increasing, both for thermal networks in new buildings and for those remodeled based on existing centralized thermal networks. In this study, a conventional centralized thermal network was implemented as a decentralized thermal network and the possibility of heat prosumers feeding thermal networks was demonstrated experimentally. A real-scale plant was constructed by employing unused thermal energy facilities as prosumers in a school and childcare center based on the existing small-scale block heating and cooling thermal network. The decentralized thermal network and heat prosumer concepts were proven through operation experiments performed on the constructed system in summer and winter. An economic benefit can be achieved by increasing the peak power cost. The experimental results also showed that the proposed bi-directional heat trading reduced carbon emissions by 12.7% compared with conventional centralized thermal systems.
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Njawah Achiri, Humphrey Mokom, Vaclav Smidl, Zdenek Peroutka, and Lubos Streit. "Least Squares Method for Identification of IGBT Thermal Impedance Networks Using Direct Temperature Measurements." Energies 13, no. 14 (July 21, 2020): 3749. http://dx.doi.org/10.3390/en13143749.

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State-of-the-art methods for determining thermal impedance networks for IGBT (Insulated Gate Bipolar Transistor) modules usually involves the establishment of the relationship between the measured transistor or diode voltage and temperature under homogenous temperature distribution across the IGBT module. The junction temperature is recomputed from the established voltage–temperature relationship and used in determining the thermal impedance network. This method requires accurate measurement of voltage drop across the transistors and diodes under specific designed heating and cooling profiles. Validation of the junction temperature is usually done using infrared camera or sensors placed close to the transistors or diodes (in some cases and open IGBT module) so that the measured temperature is as close to the junction as possible. In this paper, we propose an alternative method for determining the IGBT thermal impedance network using the principles of least squares. This method uses measured temperatures for defined heating and cooling cycles under different cooling conditions to determine the thermal impedance network. The results from the proposed method are compared with those obtained using state-of-the-art methods.
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Liu, Lan Bin, Ai Juan Zou, Jia Jun Liao, and Ya Meng Liu. "The Optimization of Large Scale Heating and Cooling Network." Applied Mechanics and Materials 525 (February 2014): 616–20. http://dx.doi.org/10.4028/www.scientific.net/amm.525.616.

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It is a question if large scale heating/cooling network could be applied in China economically, environmental protection and energy saving. Toward this question, this paper studied the optimization of large scale heating and cooling network. The components of the system are analyzed and modeled in detail including heating/cooling source, heating/cooling users and transmit system. And the system can be optimized through the way of Life Cycle Cost, which compared the cost of large scale heating and cooling system with conventional system. The optimization also takes efficiency and economy in to consideration.
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Cristea, Mariana, Sorin Ibanescu, Constantin N. Cascaval, and Dan Rosu. "Dynamic Mechanical Analysis of Polyurethane-Epoxy Interpenetrating Polymer Networks." High Performance Polymers 21, no. 5 (September 8, 2009): 608–23. http://dx.doi.org/10.1177/0954008309339940.

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A series of semi-interpenetrated polymer networks based on bisphenol A epoxy resin and polyurethane was synthesized by sequential procedure. The molecular dynamics of polyurethane incorporated in the resin network with increasing amounts of resin was followed by dynamic mechanical analysis. All phenomena that concur in the material are evaluated by cross-examination of the storage modulus ( E'), loss modulus ( E'') and loss factor (tan δ) variation with temperature. Complex aspects were elucidated in consecutive heating-cooling-heating cycles and by calculating the apparent activation energy of relaxations in multiplex experiments.
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Dissertations / Theses on the topic "Heating and cooling networks"

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Uhrík, Patrik. "Implementace kogeneracni jednotky do siti "Smart Heating and Cooling Networks"." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318635.

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The aim of the Master‘s thesis was to create a computational model for integration of the cogeneration unit into the smart thermal network. For the better use of waste heat from the selected cogeneration unit MOTORGAS MGM250 during the summer period, the absorption circuit was dimensioned and the appropriate trigeneration computational model was formed. In the theoretical part, the function, operation and heat performance of the cogeneration unit as well as the suitability of the connection of the cogeneration unit with the absorption chiller during the summer period were described. In the practical part, the operational data of the Faculty of Mechanical Engineering of the Brno University of Technology and the theoretical performance data from created cogeneration and trigeneration computational models were compared. Based on this comparison, the conclusion about the suitability of use of both computational models was made.
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SAMUELSSON, ANDERS, and DANIEL STEUER. "Model predictive control in heating and cooling networks : A case study of an urban district in Stockholm." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299439.

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This work presents a model predictive control system for heating and cooling supply planning in an urban heating and cooling network. The control approach addresses the need for strategic operation of distributed production technologies and thermal energy storage in increasingly complex heating and cooling networks. Predictive optimization handles this complexity with an optimization strategy taking future demand, prices, and energy source availability into consideration. The model predictive control is integrated in a model built in a co-simulation approach. The co-simulation approach allows for models to run in their own simulation environments, preserving their levels of detail.  The model is adapted to a case study of an urban district under construction in Stockholm. Yearly simulations of the network and comparisons of the outcome when operated by the model predictive controller and by a reference rule-based controller are performed. The results show performance improvements in the form of reduced operational costs of 9.7 % and 18.8 % reduced carbon emissions, depending on how the objective function of the model predictive controller is formulated. An objective function aiming to minimize district heating imports is also formulated. While that objective function decreases the imports compared to the other objective functions, it increases the imports compared with the reference scenario, albeit from an already low share in the total energy supply of 0.2 %. A sensitivity analysis is performed to investigate the robustness of the control system. The sensitivity analysis shows that the reference controller is not robustly programmed for variations in parameters compared with the model predictive controller, which performs consistently better with both increases and decreases of the parameter sizes.  Future work could include detailed modelling in other simulation tools integrated in the co-simulation platform. Another possibility is developing a closed-loop system approach which would include, for example, feedback from the buildings’ indoor temperatures. This would allow for the utilisation of the buildings’ thermal mass as thermal energy storage. Lastly, more detailed economic and environmental calculations, such as life-cycle analysis or investment calculations, would further emphasize the real-world applicability of the findings.
Det här arbetet presenterar ett Model Predictive Control system för planering av värme- och kyltillförsel i ett urbant värme- och kylnät. Distribuerade energiresurser och termisk värmelagring leder till ökad komplexitet i planering och drift av framtidens värme- och kylnät. Prediktiv optimering hanterar komplexitet med en optimeringsstrategi som tar hänsyn till framtida efterfrågan, priser och tillgänglighet av energiresurser. Model Predictive Control systemet är integrerat i en modell uppbyggt i en Co-Simulation miljö. Co-Simulation möjliggör detaljerad modellering av olika delsystem i dess specifika simulerings miljö för att bevara dess detaljnivå.  Modellen är anpassad till en fallstudie av ett urbant distrikt under uppbyggnad i norra Stockholm. Årliga simuleringar av distriktet genomfördes. Därefter jämfördes resultat mellan simuleringar med Model Predictive Control systemet med ett konventionellt regel-baserat kontrollsystem. Tre målfunktioner var formulerade för Model Predictive Control systemet. Den första att minska driftkostnader för systemet, den andra att minska koldioxidutsläpp och det sista att minska importen från fjärrvärmenätet. Den första målfunktionen ger en minskning på 9.7 % i driftkostnader, den andra ger minskade koldioxidutsläpp på 18.8 %. Den tredje och sista däremot uppnår inte målet och ökar importen från fjärrvärmesystem jämfört med det konventionella regel-baserade kontrollsystemet. Utöver det så är en känslighetsanalys genomförd för att visa på robusthet av kontrollsystemen. Den visar att det Model Predictive Control systemet anpassar sig till förändringar i parametrar bättre än det andra kontrollsystemet.  Framtida arbeten inom området kan inkludera mer detaljerade modellering av de olika teknologierna inkluderade i studien. En annan möjlighet är utveckling av ett återkopplingssystem från byggnadernas inomhustemperatur. Det skulle möjliggöra användningen av byggnadens termiska massa som termisk energilagringssystem. Slutligen, mer detaljerad ekonomiska beräkningar och miljöberäkningar, såsom life-cycle analysis eller investeringskalkylering skulle utveckla resultaten från arbetet också.
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Yuwardi, Yuwardi. "Absorption cooling in district heating network: Temperature difference examination in hot water circuit." Thesis, KTH, Kraft- och värmeteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-125068.

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Absorption cooling system driven by district heating network is relized as a smart strategy in Sweden. During summer time when the heating demand is low, the excessive hot water can be directly sold to drive absorption chillers instead of decreasing its production. In addition, this is also one answer to satisfy the cooling demand in more environmentally way since currently only around 26% of cooling demand in Sweden is satisfied by district cooling, the rest is fulfilled by individual air conditioning. Realizing this potential, the purpose of this study is to examine the returning hot water temperature in the district heating network with supply temperature of 70°C and also the effect to the absorption chiller’s COP. Through the simulation result, it is found out that the lowest possible returning water temperature is 55 °C at COP 0,69 with heat rejection (re-cooling) temperature water at 22 °C. This implies that the desired returning hot water temperature of 47 °C cannot be achieved. The lower returning hot water temperature is preferable since it gives the district heating network benefit in term of less distribution pump work, and energy recovery for the condensation process at central heating plant.
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Javed, Abbas. "Random neural network based smart controller for heating, cooling and ventilation in domestic and non-domestic buildings." Thesis, Glasgow Caledonian University, 2016. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.743891.

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Oppelt, Thomas. "Modell zur Auslegung und Betriebsoptimierung von Nah- und Fernkältenetzen." Doctoral thesis, Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-179211.

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Fernkälte bietet das Potenzial, wirtschaftlich und ökologisch vorteilhaft zur Deckung des stetig zunehmenden Klimakältebedarfs beizutragen. Im Rahmen dieser Arbeit wurde ein dynamisches thermohydraulisches Netzmodell „ISENA“ entwickelt, mit dem während der Planung und des Betriebs von Fernkältesystemen auftretende Fragen, beispielsweise in Bezug auf Wirtschaftlichkeit und Energieeffizienz, beantwortet werden können. Das Netzmodell setzt sich aus einem quasistationären hydraulischen Modell und einem instationären thermischen Modell zusammen, das auf der Verfolgung von Wasserpfropfen durch das gesamte Netz basiert (Lagrange-Ansatz). Mit diesem Modellierungsansatz können numerische Fehler sowie Bilanzungenauigkeiten vermieden werden, sodass sich eine höhere Ergebnisgüte im Vergleich zu bisher bekannten Netzmodellen erreichen lässt. Ebenfalls neu entwickelt wurde das Teilmodell zur Abbildung der Wärmeströme über die Wände unterirdischer Rohrpaare (Kälteverluste und -gewinne). Dieses Modell erlaubt die Bestimmung der instationären Rohrwand-Wärmeströme für wärmegedämmte unterirdische Rohrpaare, Rohrpaare mit gedämmtem Vor- und ungedämmtem Rücklauf sowie ungedämmte Rohrpaare. Anhand von Validierungs- und Verifikationsrechnungen wird gezeigt, dass ISENA verlässliche Ergebnisse liefert und für die praktische Anwendung geeignet ist. Abschließende Beispielrechnungen geben einen Einblick in die Untersuchungsmöglichkeiten, die das neue Modell bietet – unter anderem im Hinblick auf den Vergleich von Pumpenregelungsvarianten, den Einfluss von Rohrdämmung und Erdreicheigenschaften auf Kälteverluste und -gewinne sowie die Einbindung von Hochtemperatur-Kälteverbrauchern in den Netzrücklauf
District cooling can provide economic and ecological benefits while supplying the increasing cooling demand for air conditioning. In the present thesis, a dynamic thermo-hydraulic model “ISENA” is presented which may be used in order to answer questions arising during design and operation of district cooling networks—e. g., that are related to economic and energy efficiency. The network model consists of a quasi-static hydraulic module and a transient thermal module being based on the tracking of water segments through the entire network (Lagrangian method). With this approach, numerical errors and inaccuracies in the balance of conserved quantities could be avoided, which eventually leads to a better reliability of the results as compared to that obtained from other network models. Additionally, a new sub-model has been developed for predicting the transient heat flux through the walls of buried pipes in order to model thermal gains and losses. This model covers un-insulated, insulated and combinations of insulated as well as un-insulated pipes. Calculations performed for the purpose of validation and verification are presented in order to demonstrate that ISENA provides reliable results and hence is suitable for practical applications. Finally, example simulations show the various possibilities provided by the new model—for example, concerning the comparison of different strategies for pump control, the influence of pipe insulation and soil properties on thermal gains and losses as well as the connection of buildings equipped with high temperature cooling systems to the return line of the network
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Soderlund, Matthew Roger. "Congeneration dedicated to heating and cooling." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17672.

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Sikora, Michal. "Inovace systému chlazení točivých elektrických strojů s využitím CFD metod." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-233962.

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This thesis deal with design and implementation of innovative cooling method, intended primarily for medium-power synchronous generators. The main objective of this proposal is to remove the large heat exchanger connected to generator. This heat exchanger unduly increases the space requirements for the machine location. The proposed solution is to use a direct water-cooled stator. It is assumed that the rotor winding will be still cooled by air. Unlike current cooling system, the hot air from the rotor can be cooled in smaller cooler inside the generator. In this work are described methods which can be used for design of water cooling basic parameters, taking required temperatures into account. A small induction motor was selected for practical verification of the proposed cooling concept. This motor was modified into two variants - related to the old cooling of synchronous generators and related to the proposed solution. Both of these variants were measured and compared with each other. Subsequently, CFD models of these two variants were set up. Measured temperatures were used for debugging of models and identification of material properties of components of these machines. The final model of water-cooled variant also makes it possible to simulate the work of motor for higher performance and to determine the overload compared with the old cooling variant. Some knowledge and experience obtained from the small water-cooled induction machine were used in the design of water-cooling for large synchronous generator. In a similar way, CFD models of the old variant of cooling and proposed variant of water- cooling were created. Although these models were not verified by actual measurements on the generators, the results indicated that the application of water-cooling in this type of machine is appropriate and provides many benefits.
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Dong, Bing. "Integrated Building Heating, Cooling and Ventilation Control." Research Showcase @ CMU, 2010. http://repository.cmu.edu/dissertations/4.

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Current research studies show that building heating, cooling and ventilation energy consumption account for nearly 40% of the total building energy use in the U.S. The potential for saving energy through building control systems varies from 5% to 20% based on recent market surveys. In addition, building control affects environmental performances such as thermal, visual, air quality, etc., and occupancy such as working productivity and comfort. Building control has been proven to be important both in design and operation stages. Building control design and operation need consistent and reliable static and dynamic information from multiple resources. Static information includes building geometry, construction and HVAC equipment. Dynamic information includes zone environmental performance, occupancy and outside weather information during operation.. At the same time, model-based predicted control can help to optimize energy use while maintaining indoor set-point temperature when occupied. Unfortunately, several issues in the current approach of building control design and operation impede achieving this goal. These issues include: a) dynamic information data such as real-time on-site weather (e.g., temperature, wind speed and solar radiation) and occupancy (number of occupants and occupancy duration in the space) are not readily available; b) a comprehensive building energy model is not fully integrated into advanced control for accuracy and robustness; c) real-time implementation of indoor air temperature control are rare. This dissertation aims to investigate and solve these issues based on an integrated building control approach. This dissertation introduces and illustrates a method for integrated building heating, cooling and ventilation control to reduce energy consumption and maintain indoor temperature set-point, based on the prediction of occupant behavior patterns and weather conditions. Advanced machine learning methods including Adaptive Gaussian Process, Hidden Markov Model, Episode Discovery and Semi-Markov Model are modified and implemented into this dissertation. A nonlinear Model Predictive Control (NMPC) is designed and implemented in real-time based on Dynamic Programming. The experiment test-bed is setup in the Solar Decathlon House (2005), with over 100 sensor points measuring indoor environmental parameters such as temperature, relative humidity, CO2, lighting, motion and acoustics, and power consumption for electrical plugs, HVAC and lighting. The outdoor environmental parameters, such as temperature, relative humidity, CO2, global horizontal solar radiation and wind speed, are measured by the on-site weather station. The designed controller is implemented through LabVIEW. The experiments are carried out for two continuous months in the heating season and for a week in cooling season. The results show that there is a 26% measured energy reduction in the heating season compared with the scheduled temperature set-points, and 17.8% energy reduction in the cooling season. Further simulation-based results show that with tighter building façade, the cooling energy reduction could reach 20%. Overall, the heating, cooling and ventilation energy reduction could reach nearly 50% based on this integrated control approach for the entire heating/cooling testing periods compared to the conventional scheduled temperature set-point.
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Bol, Bullen A. D. "A pervaporation membrane absorption cooling heating system." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289081.

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Poulis, P. D. A. "Radiant wall and floor heating and cooling." Thesis, Open University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384588.

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Books on the topic "Heating and cooling networks"

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Colmenar-Santos, Antonio, David Borge-Díez, and Enrique Rosales-Asensio. District Heating and Cooling Networks in the European Union. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57952-8.

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Bejan, Adrian, and Giuseppe Grazzini, eds. Shape and Thermodynamics. Florence: Firenze University Press, 2008. http://dx.doi.org/10.36253/978-88-8453-836-9.

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Shape and Thermodynamics is a two-day international Workshop focused on the Constructal Theory of generation of configuration in nature and engineering. From the early developments related to tree configurations for the cooling of electronics, today Constructal theory is being applied to conceptual design of transportation net-works, river basins, living bodies, building materials and many other flow systems. Constructal theory is also enriching thermo-dynamics, from basic theory to design and optimization. This theory approaches design "as science", with the generation of configuration regarded as a phenomenon of all physics, based on principle (the Constructal law). For example, Constructal Theory contributes to the evolution of fuel cells, in the design of cooling channels, the optimal feeding of reactants, etc. Important applications are also found in the design of heat exchangers, district heating networks, etc. The growing scientific literature on Constructal Theory has an important Italian component, although further dissemination is timely. Moreover, the relation with other thermodynamic research areas deserves to be explored. Website: Shape and Thermodinamics
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Ballard, Carol. Heating and cooling. Chicago, Ill: Heinemann Library, 2008.

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Killinger, Jerry. Heating and cooling essentials. Tinley Park, Ill: Goodheart-Willcox, 2003.

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Heating and cooling essentials. South Holland, Ill: Goodheart-Willcox, 1993.

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Killinger, Jerry. Heating and cooling essentials. Tinley Park, Ill: Goodheart-Willcox, 1999.

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Healey, Joseph F., Mary F. Babington, Lori L. Mort, and Tonia Ferrell. Comfort heating & cooling equipment. Cleveland: Freedonia Group, 2000.

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Killinger, Jerry. Heating and cooling essentials. Tinley Park, Ill: Goodheart-Willcox, 2003.

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consultant, O'Mahony Patrick, ed. Experiments with Heating and Cooling. London: Raintree, 2015.

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Trost, J. Efficient buildings: Heating and cooling. College Station, Tex: A-C Publications, 1987.

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Book chapters on the topic "Heating and cooling networks"

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Colmenar-Santos, Antonio, David Borge-Díez, and Enrique Rosales-Asensio. "Introduction." In District Heating and Cooling Networks in the European Union, 1–5. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57952-8_1.

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Colmenar-Santos, Antonio, David Borge-Díez, and Enrique Rosales-Asensio. "District Heating and Cogeneration in the EU-28: Current Situation, Potential and Proposed Energy Strategy for Its Generalisation." In District Heating and Cooling Networks in the European Union, 7–29. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57952-8_2.

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Colmenar-Santos, Antonio, David Borge-Díez, and Enrique Rosales-Asensio. "Cogeneration and District Heating Networks: Measures to Remove Institutional and Financial Barriers that Restrict Their Joint Use in the EU-28." In District Heating and Cooling Networks in the European Union, 31–54. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57952-8_3.

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Colmenar-Santos, Antonio, David Borge-Díez, and Enrique Rosales-Asensio. "Reconciliation of Social Discount Rate and Private Finance Initiative: Application to District Heating Networks in the EU-28." In District Heating and Cooling Networks in the European Union, 55–70. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57952-8_4.

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Colmenar-Santos, Antonio, David Borge-Díez, and Enrique Rosales-Asensio. "Evaluation of the Cost of Using Power Plant Reject Heat in Low-Temperature District Heating and Cooling Networks." In District Heating and Cooling Networks in the European Union, 71–102. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57952-8_5.

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Picón-Núñez, Martín. "Heating and Cooling System Analysis Based on Complete Process Network." In Handbook of Food Process Design, 299–334. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781444398274.ch12.

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Li, Chengdong, Weina Ren, Jianqiang Yi, Guiqing Zhang, and Fang Shang. "Data-Driven Optimization of SIRMs Connected Neural-Fuzzy System with Application to Cooling and Heating Loads Prediction." In Advances in Neural Networks – ISNN 2015, 499–507. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-25393-0_55.

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Leff, Harvey S. "Working, Heating, Cooling." In Energy and Entropy, 213–50. Boca Raton : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429330018-8.

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Kazmer, David O. "Heating and Cooling." In Plastics Manufacturing Systems Engineering, 47–83. München: Carl Hanser Verlag GmbH & Co. KG, 2009. http://dx.doi.org/10.3139/9783446430143.003.

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Kranzl, Lukas, Marcus Hummel, Wolfgang Loibl, Andreas Müller, Irene Schicker, Agne Toleikyte, Gabriel Bachner, and Birgit Bednar-Friedl. "Buildings: Heating and Cooling." In Economic Evaluation of Climate Change Impacts, 235–55. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-12457-5_13.

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Conference papers on the topic "Heating and cooling networks"

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Lundell, Fredrik, Bernard Thonon, and Jean Antoine Gruss. "Constructal Networks for Efficient Cooling/Heating." In ASME 2004 2nd International Conference on Microchannels and Minichannels. ASMEDC, 2004. http://dx.doi.org/10.1115/icmm2004-2400.

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Channel networks designed with constructal theory are compared. The efficiency of the networks when used for cooling a uniformly heated surface is compared. Three networks are compared and it is found that the two constructal designs with two and three constructal levels have similar performance. It is shown that for a given pumping power, the constructal designs give a heat transfer coefficient of the surface which is almost a factor of magnitude higher than the one obtained for a parallel channel system.
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Saurav, Kumar, Anamitra Roy Choudhury, Vikas Chandan, Peter Lingman, and Nicklas Linder. "Building modelling methodologies for virtual district heating and cooling networks." In 2017 IEEE International Conference on Smart Grid Communications (SmartGridComm). IEEE, 2017. http://dx.doi.org/10.1109/smartgridcomm.2017.8340737.

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Mans, Michael, Tobias Blacha, Peter Remmen, and Dirk Müller. "Automated model generation and simplification for district heating and cooling networks." In The 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019. Linköing University Electronic Press, 2019. http://dx.doi.org/10.3384/ecp19157179.

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Bhattacharya, Saptarshi, Vikas Chandan, Vijay Arya, and Koushik Kar. "Thermally-fair demand response for district heating and cooling (DHC) networks." In e-Energy'16: The Seventh International Conference on Future Energy Systems. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2934328.2934343.

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Fang, Xinxin, and Xing He. "Optimal operation of residential cooling heating and power system integrated with DR programs." In 2017 International Workshop on Complex Systems and Networks (IWCSN). IEEE, 2017. http://dx.doi.org/10.1109/iwcsn.2017.8276501.

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Bandyopadhyay, Sambaran, Jagabondhu Hazra, and Shivkumar Kalyanaraman. "A machine learning based heating and cooling load forecasting approach for DHC networks." In 2018 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT). IEEE, 2018. http://dx.doi.org/10.1109/isgt.2018.8403331.

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Cao, Shuxiu, Juping Gu, Xinsong Zhang, and Ping Lu. "Optimal Dispatch of Combined Cooling, Heating and Power Microgrid Considering Thermal Characteristics of Heating Network." In 2019 34rd Youth Academic Annual Conference of Chinese Association of Automation (YAC). IEEE, 2019. http://dx.doi.org/10.1109/yac.2019.8787640.

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Zeng, Jing, Qun Xu, Youzhi Ning, and Xiuling Zhang. "Pipe Network Optimization in District Cooling/Heating System: A Review." In 2019 International Conference on Robots & Intelligent System (ICRIS). IEEE, 2019. http://dx.doi.org/10.1109/icris.2019.00042.

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Colella, Whitney G. "Optimizing Operation of Stationary Fuel Cell Systems (FCS) Within District Cooling and Heating Networks." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33134.

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We evaluate innovative design, installation, and control strategies for generating combined cooling, heating, and electric power (CCHP) with fuel cell systems (FCS). The addition of an absorptive cooling cycle allows unrecovered FCS heat to be converted into cooling power, such as for air-conditioning. For example, unrecovered low temperature (80–160°C) heat can be used to drive absorption chillers to create a chilled water stream to cool building spaces. Compared with separate devices that individually generate electricity, heat, and cooling power, such CCHP FCS can reduce feedstock fuel consumption and the resulting greenhouse gas emissions (GHG) by at least 30%. We develop economic and environmental models that optimize the installed capacity of CCHP FCS to minimize either global carbon dioxide (CO2) emissions or global energy costs. Our models evaluate innovative engineering design, installation, and control strategies not commonly pursued by industry, and identify strategies most beneficial for reducing CO2 emissions or costs. Our models minimize costs for building owners consuming cooling power, electricity, and heat by changing the installed capacity of the FCS and by changing FCS operating strategies. Our models optimize for a particular location, climatic region, building load curve set, FCS type, and competitive environment. Our models evaluate the benefits and drawbacks of pursuing more innovative FCS operating strategies; these include 1) connecting FCS to distribution networks for cooling power, heat, and electricity; 2) implementing a variable heat-to-power ratio, to intentionally produce additional heat to meet higher heat demands; 3) designing in the ability to tune the quantity of cooling power from the absorption chiller compared with the amount of recoverable heat from the FCS; and 4) employing the ability to load-follow demand for cooling, heat, or electricity. We base our datum design conditions on measured data describing generator performance in-use, and on measured data describing real-time electricity, heating, and cooling demand over time. A unique feature of our data sets is that the space cooling demand is directly measured and distinguishable from electricity demand (unlike as with standard air conditioning systems). We report results for optimal installed capacities and optimal FCS operating strategies. We generalize these results so that they are applicable to a wide-range of environments throughout the world.
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Liu, Xinglei, Jun Liu, and Xia Zhao. "Energy Flow Calculation Method of Combined Cooling, Heating and Power System with Terminal Cooling Network Model." In 2020 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2020. http://dx.doi.org/10.1109/pesgm41954.2020.9281675.

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Reports on the topic "Heating and cooling networks"

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Leoni, Paolo. Techno-economic comparison of the collected examples. IEA SHC Task 55, November 2020. http://dx.doi.org/10.18777/ieashc-task55-2020-0012.

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Subtask A “Network analysis and integration” focuses on the overall aspects of district heating and cooling networks with integrated solar thermal (ST) technologies. Particularly important are the cases in which the solar share is such to significantly influence the operation of the network and the other heat/cold supply units. In the present factsheet, the best-practice examples collected in the factsheet A-D1.1 are analyzed and compared.
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Schmidt, Ralf-Roman, Paolo Leoni, and Hamid Aghaie. The future of DH and the role of solar thermal energy. IEA SHC Task 55, October 2020. http://dx.doi.org/10.18777/ieashc-task55-2020-0007.

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Solar thermal (ST) energy is one of the few renewable heat sources that is available almost everywhere and can bring multiple benefits to district heating and cooling (DHC) networks (on an environmental and systemic level) with very low operation costs and risks. However, the current share of ST in DHC networks is almost zero on a global scale.
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Leoni, Paolo, Ralf-Roman Schmidt, Roman Geyer, and Patrick Reiter. SWOT analysis of ST integration in DHC systems. IEA SHC Task 55, February 2020. http://dx.doi.org/10.18777/ieashc-task55-2020-0002.

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Solar thermal (ST) energy is one of the few renewable heat sources that is available almost everywhere and can bring multiple benefits to district heating and cooling (DHC) networks (on an environmental and systemic level) with very low operation costs and risks. However, the current share of ST in DHC networks is almost zero on a global scale.
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Damman, Dennis. Cab Heating and Cooling. Office of Scientific and Technical Information (OSTI), October 2005. http://dx.doi.org/10.2172/903061.

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Teotia, A. P. S., D. E. Karvelas, E. J. Daniels, and J. L. Anderson. District heating and cooling market assessment. Office of Scientific and Technical Information (OSTI), June 1993. http://dx.doi.org/10.2172/10157992.

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Holtz, M. IEA solar heating and cooling program. Office of Scientific and Technical Information (OSTI), April 1989. http://dx.doi.org/10.2172/6925318.

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Garton, Byron. Heating and Cooling Cost Model user’s guide. Information Technology Laboratory (U.S.), July 2019. http://dx.doi.org/10.21079/11681/33591.

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Burdick, Arlan. Strategy Guideline. Accurate Heating and Cooling Load Calculations. Office of Scientific and Technical Information (OSTI), June 2011. http://dx.doi.org/10.2172/1219203.

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Lowe, James William. Ground Source Geothermal District Heating and Cooling System. Office of Scientific and Technical Information (OSTI), October 2016. http://dx.doi.org/10.2172/1329477.

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Hoffman, D. P. Mold heating and cooling microprocessor conversion. Final report. Office of Scientific and Technical Information (OSTI), July 1995. http://dx.doi.org/10.2172/95354.

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