From the concept of green supply chain(GSC), this paper introduces the policy of GSC management at home and abroad and the current situation of the construction of green supply chain by chinese household appliance enterprise, and mainly introduces that under the China policies and standards of GSC, the main content and case of how to build the green supply chain by enterprise, and analysis of the difficulties and challenges of building GSC.GSC is the way that our nation's green development must go through. In order to hold the market in fierce competition, Household appliance enterprise should reduce the cost of construction GSC through technological and mode innovation to be promote green development.

Increasing electronics producers have been trying to include the reverse logistics into their integrated green supply chain as a respond to the growing market and legislative requirement on extended producer responsibility. This research present two different strategies by brand producers in China in their efforts to build a sound circular economy at firm level, including direct involvement in physical collection and recycling, and strategic partnership with third party recyclers. Based on field work and firm interviews conducted in 2016 and 2017, we depict the relation between the reverse logistics and the value chain in each model regarding the business strategy and competitive advantage of the brand producer. The implication to the EPR legislation and public intervention is discussed in conclusion.

Commission by Beijing development and reform commission,energy saving supermarket activities (ESSA) have been organized by Beijing energy conservation and environmental protection center (BEEC) for 8 years since. It promotes household appliance energy-saving product sales. Beginning from 2014, BEEC adds the “green collection” requirement into the ESSA, to promote the construction of the green collection system of home appliance dominated by seller. Supported by government-provided incentives, the construction of green collection system for household appliances has being formed. Based on deep investigation of ESSA, this paper analyses the advantages and existent problems of the green consumption +collection mode, and puts forward the policy proposal.

At present, the traditional mode of waste household appliances recycling is gradually being broken, and a lot of new recycling pattern emerging. The green recycling model did not work efficiently, so it is in urgent need to build green efficient appliances recycling model. Based on deep investigation of waste household appliances recycling industry, this article introduced the development history of household appliances collection industry in China,analyzed the new pattern of collection market. Using Hi-collection’s model as an example to discusses how to build highly efficient green household appliance collection system in the future.

The speed of household appliances replacement is getting faster and faster. The problem of recycling of waste appliances has become the focus. This article starts from the connotation of green design of household appliances, introduces the principle of technological advancement, the principle of Environmental friendly and the principle of optimal comprehensive benefit. And it study the key green technology of household appliances from the aspects of environmental protection material selection, disassembly design, recycling design, product life cycle evaluation.

Because the frost-free refrigerating appliance use the inverter refrigerator compressor of Cool-Tech^TM technology, it emerges more variety in performance index, such as energy consumption, noise and EMC. According to the national standard the article put forward the test and judgment proposals of the frost-free refrigerating appliance.

Nowadays, compressor manufacturers use a variety of technologies to enhance their compressor performance that can save energy to adapt to society demand and development. The effect of compressor efficiency is mainly divided into three parts: mechanical efficiency, motor efficiency and adiabatic thermal efficiency. Company research about heat transfer characteristics of the compressor interior is very inadequate; we mainly research the fluid mechanical and motor optimization design. Because influence that the heat transfer in compressor especially between inside and outside of cylinder is very large, in this field there is greatly potential improving the efficiency of the compressor. The papers mainly research the mechanism of cylinder heat transfer characteristics, the relationship between heat transfer and thermal conductivity. Also we probe ways to reduce the heat transfer and decrease suction overheating and the exhaust temperature. The effects of different thermal insulation and heat transfer coefficients on the heat exchange characteristics of the external surface of the cylinder were verified.

The new "implementation rules for energy efficiency label of non-directional self-ballasted LED lamps for general lighting service" has been promulgated and implemented. This paper interprets the main contents of the implementation rules of LED lamps. The key and difficult contents are introduced in order to provide reference for the majority of LED production enterprises to understand the implementation rules in time, improve the product quality and apply for the energy efficiency marking record.

Commercial electric kitchen machines are introduced. Combined with problems that occur frequently in the testing, common non-conformities of commercial electric kitchen machines are analyzed based on safety standards, mainly including marking and instructions, protection against access to live parts, stability and mechanical hazards, construction, supply connection and external flexible cords and provision for earthing.

Based on design requirements for noise reduction of air-conditioning outdoor unit, this paper studies the influence factors of the structure of the front panel guide wind ring on air volume and noise of outdoor unit, which includes the height, length and segmental arc structure of the wind guide ring. The result shows that, within the permissible range of the size space of air-conditioning outdoor unit, the air volume increased with the increase of the guide wind circle length, when the guide ring length increased from a to c, the air volume increases by 35~100m³/s, while the noise can be decreased by 0.5dB~1dB under the same air volume change. With the arc of the guide wind ring increasing, the air volume increases firstly and then decreases. When the arc section increases from r to R, the air volume increases by 30~140m³/s. when the arc section increases from R to RR, the air volume decreases by 30~80m³/s, the noise decreases 0.5~1dB firstly, then increase by about 0.5dB under the same air volume change. Which shows that , the air volume and noise of the outdoor unit achieve the best effect when the arc segment is R. The air volume increases with the increase of the guide wind circle height, when the wind circle height increases from h to H, the air volume rises by 50m³/s, while the noise decreases slightly by 0.3dB~0.5dB under the same air volume change. The study on the influence of guide wind ring structure on air volume and noise of air-conditioning outdoor unit shows that, the increasing of the guide wind ring height and length has a positive effect on improving the air volume and noise reduction of the outdoor unit. However, this positive effect is limited by the front panel metal material and processing technology.

Electrostatic technology can form the electrostatic field in the space, can break the hydrogen bonding between water molecules, under this condition the surface tension of water molecules increases, also permeability enhancement, in washing process, stain more easy to fall off, instead of washing powder and liquid detergent. At the same time, the negative ions can be formed by the electrostatic field, can kill the bacteria. This paper will discuss the application of electrostatic field in the washing machine.

This paper introduced the working principle of the integrated water quality pretreatment module and the components of the filter element, and analyzed the difference of the water purification effect of the composite filter with different components. The test data show that this module can effectively remove the sediment, chlorine, bacteria and other impurities in the water, which has a significant effect for bath water purification. The application of water purification module on electric water heaters made the bath water more health for users, and opened up a new direction for the development of water heater industry.

Compared with polyurethane foam, VIP is a more efficient heat preservation and energy saving material. In this paper, heat transfer theory and engineering experience formula were used to analyze the composite two-dimensional heat transfer of polyurethane and VIP. The heat transfer model of the refrigerator was established, and the establishment of thermal load transfer model of refrigerator, through the thin film heat flux sensor test correction, and the prototype verification of energy consumption. The results show that the model predicts the results of heat load and energy consumption test results can be controlled within 6% by considering the difference of foam in different boxes.

Based on the air conditioner to place the wind can guide the wind vane only left or right guide wind, wind deflector can only be upward or downward ventilation, lead to the limited scope of ventilation, are unable to guide the wind. The limitations and the ventilation, make the room has a local space does not enjoy the effect of air conditioning.In this paper a kind of a move through the transmission, rotation and deformation of the ventilation structure, to guide the wind vane guide the effect of the wind, the wind blades won't come to the right guidance on the left the wind, the right guide the wind vane guide the wind not to left, center around to guide the wind, the energy from waste.

The energy efficiency standard (2008) for electric rice cookers has been implemented for 8 years, which has greatly promoted the improvement of energy efficiency level and energy saving technology of electric rice cooker in china. With the development of science and technology, the progress of technology, the improvement of the requirements, the standard version is natural. The new energy efficiency standard for electric rice cookers issued in May 2017, implemented in June 1, 2018. Through the comparative analysis of the new and old standards, we can help you understand the requirements of the new standards as soon as possible, with a view to providing some help for the implementation of the new standards.

Semiconductor refrigeration technology is one green refrigeration technology,and high effective heat rejection is one important technology of semiconductor refrigeration, which will largely affect the cooling performance . Phase change heat exchanger is the most efficient method among all the heat rejection methods. Therefore, based on the thermo syphon phase change heat pipe technique, a new heat rejecter is developed. This paper models the rejecter with CFD software Fluent,and the results are validated by the tests on one semiconductor refrigerator, which shows the designed heat rejecter has good heat rejection performance.