Industrial Detector of REactor Antineutrinos for Monitoring (iDREAM) is a 1 ton Gd-doped liquid scintillator detector mounted in the Kalinin nuclear power plant (Russia), 20 m from the 3 GW
VVER type ...commercial reactor. Antineutrinos are detected via inverse beta decay on protons. Beginning in 2021, the detector is collecting data both in reactor ON and OFF modes. The first iDREAM antineutrino results are presented, showing no doubt on the proper operation of the detector as a counting device.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Abstract
The paper is devoted to the description of the iDREAM
detector and its systems. iDREAM is a prototype detector designed to
demonstrate the feasibility of antineutrino detectors for remote
...reactor monitoring and safeguard purposes. Antineutrinos are
detected with a 1 ton liquid scintillator via inverse beta decay on
protons. In order to suppress cosmic muons, gamma and neutron
background, the detector is housed in a dedicated shielding. The
detector is installed at the Kalinin nuclear power plant (Russia),
20 m from the 3 GW
th
reactor core.
Various applications of neutrinos are currently a subject of widespread discussions. One of the options considered is to use neutrinos to monitor nuclear reactor cores and oversee nonproliferation of ...fissile materials. IDREAM is a prototype of the detector designed to register antineutrinos from the reactor core using the inverse beta decay. The detector target is 1 ton of liquid scintillator based on gadolinium-doped linear alkyl benzene. The detector was installed at the Kalinin nuclear power plant (Russia) at a distance of ~20 m from the core. IDREAM started taking data in spring 2021. A description of the detector is presented and the results of the measurements of background conditions at the experiment site are discussed.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The microclimate control for animals is the mandatory condition of ecological compatibility of agricultural industry and production of high-quality products, protection of both the animals and ...products and, hence, people who consume such products from the harmful influence of technical progress. The goal of research was to develop an air dehumidifier based on Peltier elements for ensuring optimal microclimate parameters on cattle breeding premises. Advantages notwithstanding, there are no Peltier element-based dehumidifiers for such conditions. The functional–technological scheme and method for calculating the parameters of the thermoelectric installation for dehumidifying, heating and disinfecting the air in livestock buildings are presented. The parameters and modes of its operation are substantiated. The results of physical simulations of air dehumidification and heating processes are reported. The design structure of the thermoelectric unit’s operating sample and the results of its testing are presented. As a result of the research, it was found out that the thermal energy extracted by the hot circuit and used to heat the dehumidified air exceeds the electric energy consumed from the power grid by 20% to 30%. The use of the proposed units instead of traditional ones will enable the consumer to reduce his energy costs by a maximum of 30%. The dehumidifiers are designed for application on agricultural premises of small volume characterized by required air capacity of about 500 m3/h, such as maternity rooms, prophylactorium calf houses, veterinary sanitary centers, etc. The research performed allows to create a typical size spectrum for dehumidifiers within the specified range of capacity. For their application on cattle breeding premises where a high air capacity is required, additional research is needed. The price of developed thermoelectric dehumidifier of power up to 5 kW and air capacity of up to 500 m3/h (600−700 $) is comparable with that of conventional air dehumidifiers. The estimated annual economic effect of this equipment introduction into a commercial dairy farm for 800 livestock units will be circa $9000.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
The paper is devoted to the description of the iDREAM detector and its systems. iDREAM is a prototype detector designed to demonstrate the feasibility of antineutrino detectors for remote reactor ...monitoring and safeguard purposes. Antineutrinos are detected with a 1 ton liquid scintillator via inverse beta decay on protons. In order to suppress cosmic muons, gamma and neutron background, the detector is housed in a dedicated shielding. The detector is installed at the Kalinin nuclear power plant (Russia), 20 m from the 3 GW\(_{th}\) reactor core.
The article describes the functional-technological scheme of an energy-efficient combined electric accumulation heating system for agricultural production facilities. A distinctive feature and ...novelty is the use of direct and accumulative heating. They presented the main provisions of the heat power and aerodynamic calculation for the standard size range of such plants. Based on the results of experimental studies, a number of functional dependencies were obtained that characterize the operating modes of the plant. They determined the value of the heat transfer coefficient from the heat accumulating core to the circulating air depending on the coolant flow rate α = f(G). They presented the technical characteristic of the combined electrical unit current sample.
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