Solar heat utilization and underground construction ventilation system based on pulsating heat pipe

Abstract

The invention discloses a solar heat utilization and underground construction ventilation system based on a pulsating heat pipe. The pulsating heat pipe is introduced into a heat collector in a solar heat utilization system, so that the heat transfer efficiency is improved, and a requirement on complicated working environments of the underground construction can be met. The underground construction ventilation system supplies cooling and heating by utilizing the heat collected by the heat collector, so that refrigerating and dehumidifying functions in summer and heating function in winter can be realized to meet different needs of people for the comfort level in winter and summer. In summer, the heat is supplied to absorption type refrigerating equipment, the air inlet temperature is cooled, and the air flows and ventilates in the underground construction after dehumidification, and heat exchange between a parallel flow heat-pipe heat exchanger at an air exhaust hole and the air at an air inlet can be performed, and the cooling capacity is recycled; and in winter, the heat is supplied to a heat pump, and the heated fresh air flows in the underground construction, and the heat exchange of the air between the air exhaust hole and the air inlet is performed, and the afterheat is recycled. In addition, through solar-assisted heat supply, when natural ventilation conditions are appropriate, electric energy is provided to the outside through photovoltaic power generation, and therefore, the efficiency is high, the energy consumption is low, the practicability is high, the cost is low, and energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention relates to the field of new energy utilization, in particular to a pulsating heat pipe-based solar heat utilization, solar power generation, and underground building ventilation system. Background technique [0002] The development and utilization of underground space is the key to solve the problems of urban land shortage and traffic congestion; the construction of green underground space is an important measure to achieve sustainable development. The underground space is closed and dark, the ventilation and lighting conditions are very bad, and the opening of windows is limited. The introduction of natural light and the flow of air are not as free as those of the above-ground buildings. Long-term humid conditions will not only greatly reduce the comfort of the human body, but also create a new environment. All kinds of mold provide an excellent living environment, corrode the metal, seriously affect the normal use of equipment, and even...

AI Technical Summary

Problems solved by technology

The underground space is closed and dark, the ventilation and lighting conditions are very poor, and the opening of windows is limited. The introduction of natural light and the flow of air are not as free as those of the above-ground buildings. Long-term humid conditions will not only greatly reduce the comfort of the human body, but also create a new environment for the environment. All kinds of molds provide an excellent living environment, corrode metals, seriously affect the normal use of equipment, and even affect the structure of buildings, bringing safety hazards; in winter, it is necessary to heat the air that passes into underground buildings to meet human comfort Require

[0003] The existing technology mainly relies on natural ventilation and mechanical ventilation. The effect of the former is unstable and greatly affected by weather factors, while the latter consumes a lot of energy, is noisy and pollutes

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