Usefulness of PCM in building applications focusing on envelope heat exchange – Energy saving considering two scenarios

2022 ◽  
Vol 50 ◽  
pp. 101848
Author(s):  
Rasool Kalbasi
Keyword(s):  
Heat Exchange ◽  
Energy Saving ◽  
Exchange Energy

Research on Intelligent Air Conditioning System of Data Center

2014 ◽  
Vol 602-605 ◽  
pp. 928-932
Author(s):  
Min Li ◽  
Yun Wang ◽  
Zheng Qian Feng ◽  
Wang Li
Keyword(s):  
Heat Exchange ◽  
Energy Saving ◽  
Data Center ◽  
Air Conditioning ◽  
Data Centers ◽  
Cooling Efficiency ◽  
Exchange System ◽  
Air Conditioning System ◽  
Running Time ◽  
Heat Exchange System

By studying the energy-saving technologies of air-conditioning system in data centers, we designed a intelligent air conditioning system, improved the cooling efficiency of air conditioning system through a reasonable set of hot and cold aisles, reduced the running time of HVAC by using the intelligent heat exchange system, an provided a reference for energy saving research of air conditioning system of data centers.

RESEARCH OF DIFFICULT HEAT EXCHANGE IN THE MULTILAYERED CYLINDRICAL СONSTRUCTION INCLUDING ENERGY SAVING GAS LAYERS

2014 ◽  
Vol 4 (3) ◽  
pp. 90-95
Author(s):  
Igor Vasil'evich KUDINOV ◽  
Lubov Sergeevna ABISHEVA ◽  
Anastasia Nikolaevna BRANFILEVA
Keyword(s):  
Heat Exchange ◽  
Energy Saving ◽  
Heat Conductivity ◽  
Convective Heat Exchange ◽  
Theoretical Studies ◽  
Laboratory Installation ◽  
Operating Modes ◽  
Wide Range ◽  
Coefficient Of Heat Conductivity ◽  
Gas Layer

Pilot and theoretical studies of difficult heat exchange in a gas layer which allowed to carry out the analysis of process of transfer of warmth are conducted to define a contribution of each component of heat exchange (convective heat exchange and radiation), to find equivalent coefficient of heat conductivity of a vertical cylindrical air layer on various operating modes of laboratory installation in the wide range of temperatures (from 0 -to 3000 C). Results of research will be useful to modeling of heatexchange processes in gas layers, at a choice of the most optimum (power effective) thickness of a layer, a material of walls, environment structure, etc.

Structure and Properties of Total-Heat Exchange Membranes for Energy Saving Heat Exchange Ventilation Processes

2011 ◽  
Vol 374-377 ◽  
pp. 568-571 ◽  
Author(s):  
Li Xin Xue ◽  
Bing Xin Liu ◽  
Jing Chen ◽  
An Chun Shao
Keyword(s):  
Heat Exchange ◽  
Air Quality ◽  
Energy Saving ◽  
Indoor Air ◽  
Water Vapor Permeability ◽  
Functional Materials ◽  
Casting Process ◽  
Total Heat ◽  
Vapor Permeability ◽  
Structure And Properties

As complement to air conditioners, ventilation systems are playing important roles in keeping human health as well as saving energy. They improved indoor air quality by replacing inside polluted air with outside fresh air. To reduce the energy needed to condition the induced fresh air, heat exchanging processes are designed to reduce the temperature differences between this fresh air and the indoor air. Heat exchanging processes using total heat exchange membranes (THEM) allowed not only the exchange of heat but also humidity, generally providing better energy saving and air quality improvement results. Recently, we have studied a novel class of THEM made from a casting process using inorganic and organic functional materials. Their structure and properties characterized with Scanning Electron Microscopy (SEM), BET Adsorption test, Water-vapor Permeability Analysis, CO2 Permeation Test, and Heat Exchange Efficiency Test are discussed here.

scholarly journals Energy-Saving Technologies in the Use of Heat Exchange Apparatuses with Turbulators

2019 ◽  
Author(s):  
ANATOLY MURAVEV ◽  
IGOR DROZDOV ◽  
ALEKSANDR NAUMOV ◽  
ALEKSANDR NADEEV ◽  
YULIA VOROBEVA
Keyword(s):  
Heat Exchange ◽  
Energy Saving

scholarly journals Heat-Exchange Surface Calculation of Heat-Conducting Medium and Grain Trashed Heap

2020 ◽  
pp. 66-68
Author(s):  
В.А. Николаев ◽  
И.В. Кряклина
Keyword(s):  
Heat Exchange ◽  
Internal Combustion Engine ◽  
Energy Saving ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Conducting Medium ◽  
Heat Conducting ◽  
Heat Exchange Surface ◽  
Heat Conducting Medium ◽  
Exchange Surface

Для энергосбережения при сушке зерна в контактно-конвективной сушилке предлагается использовать тепло охлаждающей жидкости двигателя внутреннего сгорания. Жидкость поступает в трубки контактно-конвективной сушилки. Трубки теплоносителя расположены наклонно под углом 40° параллельно друг другу по всей ширине сушилки. Над ними, в шахматном порядке – паросборники. Над паросборниками установлен плавающий разравнивающий транспортёр, который изменяет своё положение в зависимости от объёма зерна в контактно-конвективной сушилке. Рассмотрена отдельная зерновка, движущаяся по поверхности трубки теплоносителя. В результате нагрева зерновки происходит её отпотевание – появление влаги на поверхности зерновки. Произведён теплотехнический расчёт поверхности теплообмена теплоносителя и зернового вороха, определено количество тепла, передающегося зерновому вороху в результате контактного теплообмена. Установлено, что использование тепла охлаждающей жидкости двигателя внутреннего сгорания в контактно-конвективной сушилке приводит к энергосбережению при сушке зерна. For energy saving at grain drying in contact-convection drier it is proposed to use heat of cooling liquid of internal combustion engine. The liquid enters the tubes of the contact-convection drier. Heat carrier tubes are set at an angle of 40 ° parallel to each other along the full width of the drier. There are steam headers staggering above them. An amphibious leveling carrier is installed above the steam headers which changes its position depending on the volume of grain in the contact-convection drier. Separate caryopsis moving along surface of heat-conducting medium tube is considered. As a result of the heating of the caryopsis its sweating occurs – the appearance of moisture on the surface of the caryopsis. Thermotechnical calculation of heat-exchange surface of heat-conducting medium and grain trashed heap is performed, amount of heat transferred to grain trashed heap as a result of contact heat exchange is determined. It has been found that using the cooling liquid heat of the internal combustion engine in the contact-convection drier leads to energy saving when drying grain.

scholarly journals Analysis on energy saving measures of heat exchange station in central heating system

2017 ◽  
Vol 205 ◽  
pp. 581-587
Author(s):  
Bin Gao ◽  
Linfang Zhang ◽  
Yanfa Tian ◽  
Mingjun Zhou
Keyword(s):  
Heat Exchange ◽  
Energy Saving ◽  
Heating System ◽  
Central Heating

scholarly journals Potencial of energy saving in the fish and seafood cold storage in San Francisco de Campeche

2021 ◽  
pp. 24-32
Author(s):  
Francisco Tec-Acevedo ◽  
Mauricio Huchin-Miss ◽  
Francisco Demesa-López ◽  
Juan Ovando-Sierra
Keyword(s):  
Energy Efficiency ◽  
Heat Exchange ◽  
Energy Saving ◽  
San Francisco ◽  
Thermal Load ◽  
Theoretical Study ◽  
Energy Saving Potential ◽  
Seafood Products ◽  
The City ◽  
A Company

The following paper focuses on energy efficiency applied to a company dedicated to the conservation and freezing of seafood products located in the city of San Francisco de Campeche, Camp, Mexico. For this, a theoretical study is carried out to determine the energy saving potential of one of the refrigeration systems currently installed in the company to fulfill the hypothesis of obtaining savings of up to 3% in energy consumption by reducing 1 °C the condensing temperature of the system. The main thermal loads of the system are Mayan octopus, shrimp, and fish (various). With the help of the Genetron Properties Software, the different calculations are carried out by making variations in the condensation and conservation temperatures, without varying the thermal load, but considering a correct and incorrect heat exchange of the condensing units with the outside.

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