It is known that the demand for energy in the world is increasing, traditional fuelresources are not evenly distributed on the globe, and the negative impact of carbon dioxide gaseson the environment is high when using them. Today, determining the relative heat capacity ofsubstances that increase the possibilities of using solar energy and accumulate the obtained energy,as well as the use of phase change materials for solar devices is an effective way to prevent energyshortages.In this article, the specific heat capacity and heat transfer coefficient of paraffin, which is oneof the phase change materials, in liquid and solid state, is determined by the results obtained duringexperiments in laboratory conditions, as well as theoretical calculations.In this article, as a result of experimental research conducted by the authors in laboratoryconditions, the thermal properties of phase change material (PCM) were determined using the Thistory method. In this case, methods of experimental research of heat capacities of substances,determination and calculation of heat-technical parameters were used.
| Mualliflar | Ochilov, Laziz, Davlonov, Khayrulla, Mirzayev, Mirfay, Samiyev , Kamoliddin |
|---|---|
| Jurnal | Инновацион технологиялар |
| Nashr sanasi | 2024-12-30 |
| Jild | 55 |
| Son | 03 |
| Til | Ingliz |
phase change material (PCM), heat transfer coefficient, Stefan number, Biot number, T-history method, specific heat capacity., материал фазового перехода, коэффициент теплопередачи, число Стефана, число Био, метод Т- history, удельная теплоемкость., fazaviy o‘tuvchi material, issiqlik o‘tkazuvchanlik koeffitsiyenti, Stefan soni, Bio soni, T-history usuli, solishtirma issiqlik sig‘imi, sintez issiqligi, konvektiv issiqlik berish koeffitsiyenti, harorat sensori.
The global transition to renewable energy sources has led to a dramatic increase inresearch and development in solar energy technologies. Among them, flat solar water heatingcollectors are attracting a lot of attention…
Increasing hydrocarbon productivity through the rational use of gas and gascondensate fields is becoming urgent. By conducting a thermometric study on gas wells based on theobtained data on temperature distribution, it…
Heating systems of residential buildings, including typical rural houses, are energyintensive consumers of thermal and electrical energy. Research shows that the energy consumptionfor heating 1.0 m² of living space in a…
The article describes the results of the application of rank paleotectodynamicanalysis methods for the first time to study conditions of formation and age ratio of tectonic structuresof different intervals of…
Maqolada quyosh energiyasi bilan ishlaydigan tuxum inkubatorining issiqliktalabi oʻrganib chiqilgan. Bunda quyidagilar amalga oshirildi: barqaror namlik va harorat holati,inkubator materiallari doimiy issiqlik…
Today, due to the increase of hard-to-extract natural gas reserves in the world, as a result of the liquefaction of productive layers, the cases of the decrease in the flow rate of wells are increasing year by year…
This article presents the results of research work on a modernized solar drying plantwith indirect heat pipes and natural air ventilation. The dependences of temperatures, moisturecontent of the steam-air mixture and on…
The problem of evaluating the risk, efficiency and quality of use in preschooleducational organizations, including the goals and tasks of outsourcing services, is one of the mosturgent issues at the moment, because…
This article compares the parameters obtained in spring and summer seasons ofphotothermal battery (PV) and photoelectric battery (PVT) with a new type of cooling system. Solarradiation on the surface of the PVT…
The main task of the design of earthen channels is to calculate the dimensions of thestable channel shape in which irreversible deformation of the channel cross-section does not occur.This article provides information…