Energy-saving effect of rational enhancement of heat transfer in non-round surface channels

2020 ◽  
Author(s):  
V. Ya. Vasiliev ◽  
S. A. Nikiforova
Keyword(s):  
Heat Transfer ◽  
Energy Saving ◽  
Enhancement Of Heat Transfer ◽  
Round Surface ◽  
Saving Effect

Heat Transfer Technology for Textile Workshop

2013 ◽  
Vol 664 ◽  
pp. 1210-1213
Author(s):  
Rui Liang Yang ◽  
Cai Xia Zhu ◽  
Ya Fei Xiong ◽  
Zi Long Xu
Keyword(s):  
Heat Transfer ◽  
Energy Saving ◽  
Large Scale ◽  
Good Effect ◽  
Engineering Project ◽  
Heat Quantity ◽  
Saving Effect ◽  
Reasonable Use

Because each workshop heat quantity is different and cannot be reasonable use, the textile enterprise wastes a great deal energy in winter. To solve this problem, this paper puts forward heat transfer technology for the textile workshop, that is, heat transfer between different workshops to reasonable use heat quantity. This technology can be very good effect in energy saving. This paper introduces the principle and method of the technology, and verifies the energy saving effect of this method with engineering project, which provides technical reference for the method of the large-scale application and popularization.

The Energy Saving Effect Evaluation for Outside Wall with Different Material in Island District

2011 ◽  
Vol 301-303 ◽  
pp. 377-383 ◽  
Author(s):  
Yan Zhang ◽  
Xi Wu Gong
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Energy Saving ◽  
Brick Wall ◽  
Insulating Layer ◽  
Aerated Concrete ◽  
Saving Effect ◽  
Insulation Performance ◽  
The Heat Transfer Coefficient

In order to evaluate the energy saving effect for building outside wall under the damp island environment, the heat insulation performance of brick wall, MU10 concrete brick wall and aerated concrete are tested. The testing method is combined of infrared photos and heat flow meter. The results showed that the insulation performance of clay brick is worst, its heat transfer coefficient is 60% more than that required by energy saving standard. Although the concrete brick has painted 25mm polystyrene granule outside, the heat transfer coefficient is still smaller than energy saving standard required. The economic thickness of polystyrene granule is 79mm , which makes the both heating cost and insulating layer minimum during the life cycle of heat insulating layer. Among the three types of outside wall, only the aerated concrete can satisfy the energy saving standard for hot summer and cold winter district, it constitutes the self-insulating system.

scholarly journals Research and Development of Civil Engineering Intelligent Structure System

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Junkai Xie ◽  
Bo Gao ◽  
Huamin Cheng
Keyword(s):  
Heat Transfer ◽  
Energy Saving ◽  
Civil Engineering ◽  
Three Dimensional ◽  
Calculation Model ◽  
Fiber Grating ◽  
Exterior Wall ◽  
Structural System ◽  
Insulation Materials ◽  
Saving Effect

With the rapid development of global civil engineering construction, the intelligent structural system of civil engineering has evolved into one of the current global frontier disciplines. The research on the intelligent structural system of civil engineering and the current development situation are analyzed, and the main problems are combined. Giving reasonable suggestions is of great significance to the country's vigorous development of civil engineering intelligent structure system. This paper designs a new type of three-dimensional fiber grating sensor, including the design of the matrix model and the design of fiber grating strain gauges. This new sensor can effectively measure three-dimensional space, greatly expanding the application range of fiber grating sensors. In this paper, the design lighting area of each light pipe is taken as a unit. Each unit is set with 4 measuring points at the center and the edge. Each measuring point reads 3 illuminance value parameters and records the average value. Based on the results and comprehensive consideration of the short board situation, the research conclusions and recommendations are put forward. The foundation wall with aerated concrete blocks as the wall material can meet the requirements of 50% energy saving for exterior wall buildings with external decoration and internal insulation mortar. Compared with the benchmark wall of 50% energy saving of external wall buildings, the heat transfer coefficient is reduced by 50.1%, and the actual energy-saving effect of the wall can reach 75%. Meet the requirements of 65% for the energy-saving effect of exterior wall buildings. This paper considers economic parameters, such as the investment cost of building insulation materials, energy-saving income, and investment recovery period, and establishes a calculation model for analyzing the economics of insulation materials. Based on the heat transfer model of the composite wall and the fuel energy combustion equation, greenhouse gas is an established calculation model for CO2 and SO2 emissions. Studies have shown that when considering the room temperature insulation performance of insulation materials, the time required for the side of the concrete slab with glass fiber felt and aerogel insulation materials is about 2022 and 3363 s, respectively, indicating the fire resistance of aerogel insulation materials significantly better than fiberglass.

Measures Analysis of Energy Saving Reconstruction for Existing Building Windows

2012 ◽  
Vol 178-181 ◽  
pp. 127-130
Author(s):  
Jian Ping Liu ◽  
Xue Fang Zhao
Keyword(s):  
Heat Transfer ◽  
Energy Saving ◽  
Existing Buildings ◽  
Heat Transfer Characteristics ◽  
Existing Building ◽  
Transfer Characteristics ◽  
Factors Influencing ◽  
The Status ◽  
Saving Effect ◽  
At Home

The paper describes the status of the energy saving reconstruction of existing buildings external window at home and abroad. on the base of analyzing the heat transfer characteristics and the factors influencing on energy saving of building windows. Effective measures of energy saving reconstruction for existing building windows were established, and these measures include improvement of seal of window, change window sash, increase the window sash, posted on energy-saving membrane in the window, replaced by energy saving window. Energy saving effect of these measures were analyzed. It could be considered as the useful reference for renovation design of similar projects.

Research and Application on Vibrating Style Drier with Conduction and Heat Transfer

2009 ◽  
Vol 16-19 ◽  
pp. 224-228 ◽  
Author(s):  
Jing Jiang ◽  
Tong Zhu ◽  
Yuan Hua Xie ◽  
Jin Han ◽  
Lei Wang
Keyword(s):  
Heat Transfer ◽  
Energy Saving ◽  
Economic Benefit ◽  
High Efficiency ◽  
Working Environment ◽  
Structure Characteristics ◽  
Fast Speed ◽  
Working Principle ◽  
Drying Technology ◽  
Saving Effect

Vibrating style drier with conduction and heat transfer is a novel drying equipment combining drying technology with heat transfer technology. It has the properties of high efficiency, energy saving, environmental protection and fast speed, which overcomes the weakness of large energy consumption of drying equipment and uneven drying of sulfurization bed. It can greatly increase the quality and yield of products, improve the working environment, and increase remarkably economic benefit and energy saving effect. In this paper, the structure characteristics, the working principle, and also the application of vibrating style drier with conduction and heat transfer were introduced. Its dynamic characteristics were analyzed, which was of great significance to the application and popularization of this kind of drier.

Whirlwind-Like Enhancement of Heat Transfer on Dimple Reliefs

2008 ◽  
Vol 39 (1) ◽  
pp. 79-90 ◽  
Author(s):  
S. A. Isaev ◽  
Alexander I. Leontiev ◽  
V. L. Zhdanov ◽  
N. Kornev ◽  
E. Hassel
Keyword(s):  
Heat Transfer ◽  
Enhancement Of Heat Transfer

Enhancement of Heat Transfer in a Short Rectangular Channel with Substantial Deflection of Inlet Velocity from Axial Direction

2005 ◽  
Vol 36 (4) ◽  
pp. 311-318 ◽  
Author(s):  
R. Bunker ◽  
M. YA. Belen'kii ◽  
M. A. Gotovskii ◽  
B. S. Fokin ◽  
S. A. Isaev
Keyword(s):  
Heat Transfer ◽  
Rectangular Channel ◽  
Axial Direction ◽  
Enhancement Of Heat Transfer ◽  
Inlet Velocity

Enhancement of Heat Transfer in Vertical Openended Channels in Natural Convection of Gas

2002 ◽  
Vol 33 (1-2) ◽  
pp. 5 ◽  
Author(s):  
Yu. F. Gortyshov ◽  
Igor A. Popov ◽  
V. V. Olimpiev ◽  
B. B. Kostylev
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Enhancement Of Heat Transfer
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