Energy-Saving Design for Hydraulic Cylinder Reciprocating Seal Based on QFD

2010 ◽  
Vol 44-47 ◽  
pp. 1146-1150 ◽  
Author(s):  
Qing Qing Zhang ◽  
Fu Ying Zhang
Keyword(s):  
Energy Consumption ◽  
Environmental Factors ◽  
Environmental Pollution ◽  
Energy Saving ◽  
Hydraulic Cylinder ◽  
Customer Requirements ◽  
Oil Leakage ◽  
Technical Requirements ◽  
Before And After ◽  
Design Requirements

An energy-saving design for hydraulic cylinder reciprocating seal is proposed in this paper to improve using efficiency of seal, and reduce environmental pollution and energy consumption caused by oil leakage. HOQ of QFD is utilized to translate customer requirements into technical design requirements controlled by environmental factors, and the conflicts between technical requirements are obtained. TRIZ theory is used to resolve the conflicts, and gets energy-saving design solutions. The energy consumption compare between before and after improving seal is presented to illustrate the validation of the methods.

scholarly journals Heat recovery by means of a ventilation unit

2021 ◽  
Vol 263 ◽  
pp. 04025
Author(s):  
Dmitrii Khlopitsyn ◽  
Andrey Rymarov
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Heat Recovery ◽  
New Technologies ◽  
Ventilation System ◽  
New Developments ◽  
Before And After ◽  
Save Energy ◽  
Recuperative Heat Exchanger ◽  
Air Removal

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.

scholarly journals Design and Technical Analysis of HVAC Ventilation System in Green Building

2021 ◽  
Vol 261 ◽  
pp. 03039
Author(s):  
Jiawen Zhang
Keyword(s):  
Energy Consumption ◽  
Environmental Pollution ◽  
Construction Projects ◽  
Ventilation System ◽  
Tall Buildings ◽  
Green Building ◽  
Green Energy ◽  
Efficient Operation ◽  
Design Requirements ◽  
Reduce Energy Consumption

In recent years, the construction industry has developed rapidly, and there are more and more urban construction projects. The corresponding design requirements for HVAC systems are also getting higher and higher. HVAC has been widely used in all kinds of buildings. While providing convenience for people, environmental pollution has gradually become a topic of concern for people. Therefore, when designing the HVAC system, HVAC not only meets the needs of customers, but also uses green energy saving technology to reduce energy consumption as far as possible. Reduce environmental pollution, so that the HVAC ventilation system of tall buildings can be in a stable and efficient operation state. Improve the operation effect of air conditioning, while reducing energy consumption.

The Heating Energy Consumption Analysis and Energy Saving Transformation for the New Rural Apartment

2015 ◽  
Vol 744-746 ◽  
pp. 2318-2323
Author(s):  
Xiao Rui Liu ◽  
Shu Hui Xu ◽  
Yang Guo ◽  
Qing Ru Hao
Keyword(s):  
Energy Consumption ◽  
Comparative Analysis ◽  
Energy Saving ◽  
Thermal Insulation ◽  
North China ◽  
Present Situation ◽  
Energy Consumption Analysis ◽  
Before And After ◽  
Heating Energy Consumption

The main purpose of this test is to analysis heating energy consumption in new rural apartments in north china. At the first, we analysis the present situation of energy consumption and feature for new apartment in north china, then we proposed the measures to improve the performance of energy saving thermal insulation in new apartment in the area of north china, we conducted comparative analysis for energy consumption in new apartment before and after energy saving.

Energy Saving Analysis of Clean Air Conditioning System in Pharmaceutical Company

2014 ◽  
Vol 977 ◽  
pp. 166-169
Author(s):  
Xin Li ◽  
Xin Yu Ma ◽  
Ya Fei Hao
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Pharmaceutical Company ◽  
Air Conditioning ◽  
Northern China ◽  
Air Conditioning System ◽  
Freeze Dried ◽  
Before And After ◽  
Clean Air ◽  
High Level

The pharmaceutical industry building adopts the centralized air conditioning system with the characteristics of complicated structure, numerous equipments, relatively concentrated, high level of energy consumption, flexibility larger. In this paper, a clean air conditioning system of freeze-dried powder production workshop at a pharmaceutical company in northern China was been as an example. Energy consumption before and after the use of energy saving technology was been compared. The energy consumption and energy efficiency was been argument. It was a very good reference to other pharmaceutical companies.

scholarly journals Control of energy aspects of track and rolling stock interaction

2018 ◽  
Vol 239 ◽  
pp. 01044 ◽  
Author(s):  
Victor Pevzner ◽  
Uriy Romen ◽  
Kirill Shapetko
Keyword(s):  
Energy Consumption ◽  
Best Practices ◽  
Power Consumption ◽  
Energy Saving ◽  
Cost Reduction ◽  
Rolling Stock ◽  
Track Geometry ◽  
Track Maintenance ◽  
Before And After ◽  
Layout Geometry

The paper analyses international practices of energy saving for train traction. It describes methods that allow decrease of power consumption. Russian practices of energy consumption for train traction are reviewed, as well as methods for determining the power consumption related to condition of track layout geometry. Best practices of evaluation of impact of profile elevation unevenness to the train traction energy consumption are presented. The calculations that allow matching the data on track geometry before and after track maintenance works are performed, and the convictions concerning cost reduction for train traction energy saving are developed.

Organizing and Managing Customer Requirements During the Product Definition Phase of Design

1994 ◽  
Author(s):  
John A. Gershenson ◽  
Dileep V. Khadilkar ◽  
Larry A. Stauffer
Keyword(s):  
Quality Function Deployment ◽  
Taxonomic Structure ◽  
Customer Requirements ◽  
End User ◽  
Regulatory Requirements ◽  
Technical Requirements ◽  
Design Requirements ◽  
Definition Of ◽  
Product Definition ◽  
Definition Phase

Abstract We developed a methodology for organizing design requirements at the beginning of the design process which helps Marketing, Engineering Design, and all other stakeholders communicate from the outset. The methodology uses an expanded definition of a product’s customer which includes not only the end user, but anyone associated with the product at any point from concept through retirement. The methodology has a taxonomic structure to delineate customer requirements in four main areas: end user requirements, corporate requirements, regulatory requirements, and technical requirements. This methodology has the same objective as Quality Function Deployment yet is more robust.

A Decision-Making Model of Energy-Saving Design and a Case Study

2011 ◽  
Vol 130-134 ◽  
pp. 1586-1589
Author(s):  
Ping He ◽  
Guang Fu Liu ◽  
Dan Zhou
Keyword(s):  
Decision Making ◽  
Energy Consumption ◽  
Environmental Pollution ◽  
Energy Saving ◽  
Life Quality ◽  
Product Lifecycle ◽  
Total Energy Consumption ◽  
Design Factor ◽  
Decision Making Model

Pursuing the green design (GD) of products is highly beneficial in the alleviation of environment burdens. In order to gain such benefits, GD is involved in entire product lifecycle. During the product lifecycle, energy-saving is one of the main roots of environmental pollution, with the optimal calculation of the total energy consumption for GD being an important path to reduce the environmental pollution. The objective factors of decision-making problems in the traditional product design are usually three: life、quality and cost; but from the viewpoint of GD, energy consumption should also be considered. Energy design factor (E) is the essential coefficient of the model of the energy consumption throughout the entire product lifecycle. In this paper, a multi-object decision-making model of energy-saving design for GD is put forward, in which the objects of life (L), quality (Q), cost (C) and energy design factor (E) are considered together. A case study on a decision-making problem of energy-saving design in the design process of a machine tool’s transmission is analyzed, the result showing that the model is practical.

Mechanical-Electronic-Hydraulic Integration: Light Load Linear Reciprocating Motion Device Having Variable Frequency, Displacement and Velocity

2011 ◽  
Vol 279 ◽  
pp. 377-381
Author(s):  
Ming Zhe Zhang ◽  
Wei Wang ◽  
Dong Ning Su ◽  
Kang Min Zhong ◽  
Zhi Ming Sui
Keyword(s):  
Environmental Pollution ◽  
Hydraulic Cylinder ◽  
Pneumatic Cylinder ◽  
Variable Frequency ◽  
Stepping Motor ◽  
Reciprocating Motion ◽  
Oil Leakage ◽  
Light Load ◽  
Position Precision ◽  
Space Layout

The light load linear reciprocating motion device driven by a small-size pneumatic cylinder is most economical, but its velocity and location precision is not good. When substituting the drive for small-size hydraulic cylinder, the significant shortcoming is environmental pollution. If the motion is achieved through rolling screw-nut mechanism driven by stepping motor, the space layout is very inconvenient. A light load linear reciprocating motion device integrating mechanical, electronic and hydraulic technology is designed. In this device, the motion is achieved through short-stroke rolling screw-nut mechanism driven by stepping motor, and then amplified by a splendid internal reflux area effect stroke amplifier. This device has the following noticeable advantages: (1) The location of output hydraulic cylinder is as convenient as common pneumatic or hydraulic cylinder. (2) The frequency, displacement and velocity of reciprocating motion can be altered convenient by programming. (3) Higher position precision. (4) The hydraulic fluid in the device is enclosed, so there is no environmental pollution causing by oil leakage and volatilization.

scholarly journals The analysis of energy-saving technologies used in buildings with low energy consumption

2020 ◽  
Vol 18 (3) ◽  
pp. 005-016
Author(s):  
Krzystof Pawłowski
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Architectural Design ◽  
Renewable Energy Sources ◽  
Low Energy ◽  
Technical Requirements ◽  
Building Systems ◽  
Low Energy Consumption ◽  
Low Energy Buildings ◽  
The Impact

Designing, constructing and using of buildings with low energy consumption are a complex process requiring knowledge of architectural design, construction physics and building systems with the use of renewable energy sources (RES). The article presents the legal bases and characteristics of low-energy buildings. Implementation of the binding technical requirements in the field of hygrothermal characteristics consists of monitoring numerous parameters of an entire building, and in particular of its partitions and their joints and building systems. Therefore, the paper presents calculations regarding determining the material systems of building partitions and building joints with the use of professional software. The main part of the article is to establish the impact of energy-saving technologies on the energy consumption of the newly designed buildings, but also of the buildings that are undergoing modernisation processes.

scholarly journals PENGGUNAAN VARIABLE SPEED DRIVE PADA MOTOR INDUKSI UNTUK PENGHEMATAN KONSUMSI ENERGI LISTRIK

2020 ◽  
Vol 22 (2) ◽  
Author(s):  
Abdul Multi ◽  
Ervien Febryane
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Induction Motor ◽  
Electric Energy ◽  
Variable Speed ◽  
Variable Speed Drive ◽  
Electric Energy Consumption ◽  
Before And After ◽  
Reduction Of Energy Consumption ◽  
Cage Induction Motor

Variable speed drive (VSD) is used not only for controlling the speed but also for saving the electric energyconsumption. In this research VSD is applied to 3 phase squirrel cage induction motor used for water pumping inthe industry. VSD is needed to be applied to induction motors because these motors are the largest electricconsumed. Measurement and calculation are performed in the two conditions, before and after attaching VSD inthe motor. Electric quantities are obtained by measurement in the input and in the output of VSD. While energyconsumption and consumption cost are obtained by calculation. Finally, calculation of energy saving and costsaving are perfomed by comparing those two conditions. Aplication of VSD in the induction motor has advantagesfor saving electric energy consumption dan making it last longer. The energy saving and cost saving per year result1.003.984,8 kWh and IDR 732.908.904 respectlively. The longer life is caused by reduction of energy consumption.

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