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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 2. Отображено 2.
29-08-2023 дата публикации

Double-refrigerating-circuit series-connection reverse-flow large-temperature-difference cold and hot air unit

Номер: CN116659006A
Автор: HE JIJUN
Принадлежит:

The invention provides a double-refrigerating-circuit series-connection reverse-flow large-temperature-difference cold and hot air unit which comprises a shell, a containing box and an inner wall fixedly connected to the center of the rear surface of the shell, and a second compressor is fixedly installed on the inner wall of the bottom, close to the right side, of the containing box. The air supply temperature of the evaporator side can be reduced to a lower temperature and the air return temperature of the condenser side can be increased to a higher temperature in the mode that the two stages of evaporators and the condensers are vertically arranged, so that the unit with the same size can take away more heat, and the heat exchange efficiency is improved through the mode that the evaporators and the condensers are arranged in a crossed mode. The air energy on one side is cooled to a lower temperature in the air conditioning unit, and the air energy on the other side is heated to a higher ...

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Номер записи: 1
22-08-2023 дата публикации

Air conditioner monitoring system

Номер: CN116624971A
Автор: HE JIJUN, ZHAO HONG
Принадлежит:

The invention discloses an air conditioner monitoring system, which relates to the technical field of air conditioner monitoring, adopts a radiation energy transfer model, considers the radiance of a wall, a Stefan-Boltzmann constant and the difference between the surface temperature of the wall and the indoor temperature, and calculates the radiation energy transfer quantity to obtain the indoor temperature of the air conditioner. The system can accurately estimate the influence of radiative heat transfer on the indoor temperature, meanwhile, a convective heat transfer model is introduced, the adjustment effect of indoor air flow on the temperature is considered, the system calculates a flow heat transfer coefficient, the coefficient is based on the Nusselt number, the Reynolds number and the Prandtt number, and the heat transfer efficiency is improved by considering the influence of air flow. The system can accurately estimate the adjusting effect of convective heat transfer on the indoor ...

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Номер записи: 2