Heat recovery by means of a ventilation unit

Dmitrii Khlopitsyn,Andrey Rymarov,P Akimov,A Doroshenko,A Tusnin,N Vatin

doi:10.1051/e3sconf/202126304025

Dmitrii Khlopitsyn, Andrey Rymarov + Show 4 more

Open Access

https://doi.org/10.1051/e3sconf/202126304025

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Abstract

Energy consumption all over the world is constantly growing. To save energy, new technologies are being developed for the efficient use of energy resources. The goal of all new developments is to use less energy to provide the same level of energy supply for technological processes or buildings. The problem of energy saving is relevant for the ventilation system. Together with the removed air, a large amount of heat is lost, which is not advisable. In order to avoid these losses, heat recuperators began to be used, heating the cold supply air due to the warm air removed from the room. This development belongs to the field of energy saving. The goal is to increase efficiency by reheating the air after the heater with the help of a recuperator for a given temperature difference in the supply air before and after the recuperative heat exchanger. The development is a design of a ventilation unit with air removal and supply air ducts, combined into one housing with a separate, according to the “screw” principle, heat transfer wall, for use in the ventilation system in order to ensure an optimal microclimate in the room. Thus, as a result of using the presented device, the efficiency of the room ventilation unit is increased by reducing the energy consumption for heating the supply air with a heater.

Highlights

Today, the emphasis in the design of modern buildings is given to technically functional, but energy efficient buildings
Energy prices are high in the world, so the idea of energy conservation has penetrated all areas of construction, including the design and creation of ventilation systems
Automation gives control over the processes taking place in the ventilation unit. The difference between this design and analogues lies in the fact that the air ducts of the exhaust and supply systems are combined into one cylindrical body with a divided heattransfer wall, according to the principle of "screw", due to it scrolling along the centerline, which is common for the extract and supply air

Summary

Introduction

The emphasis in the design of modern buildings is given to technically functional, but energy efficient buildings. An increase in the area of flow around the exhaust and supply air, affects more energy and money savings for the operating organizations. Automation gives control over the processes taking place in the ventilation unit The difference between this design and analogues (plate recuperator, rotary recuperator, recuperator with an intermediate heat carrier, etc.) lies in the fact that the air ducts of the exhaust and supply systems are combined into one cylindrical body with a divided heattransfer wall, according to the principle of "screw", due to it scrolling along the centerline, which is common for the extract and supply air. The CO2 sensor is connected to the CO2 controller in the automatic control unit for the fans, to regulate the volume of the supply air and the exhaust air This ventilation unit can be used in residential, public and industrial buildings

Conclusions

15. Utilization of heat in cross-plate heat exchangers