Energy Consumption Analysis of Energy Saving Retrofit of Building Envelop of New Country

2011 ◽  
Vol 71-78 ◽  
pp. 326-330
Author(s):  
Guang Jun Liu ◽  
Hong Mei Zhu
Keyword(s):  
Energy Saving ◽  
Heat Load ◽  
Unit Area ◽  
Beijing City ◽  
Infiltration Capacity ◽  
Air Infiltration ◽  
Energy Consumption Analysis ◽  
Building Envelop ◽  
New Countryside ◽  
Heat Bridge

There were some problems in the building envelop of Huangmuchang village of Zhangjiawan town of Tongzhou zone Beijing city, as a demonstration village of energy saving retrofit in construction of new countryside. The problems include big heat-transfer coefficient, great cold air infiltration capacity, heat drawback, cold bridge and heat bridge etc. In this paper, how to decrease unit area heat load and improve thermal comfort by building envelop retrofit was introduced. The obvious improvements were obtained by comparing the interior temperature of the retrofitted building with that of un-retrofit building.

Research on Green Low-Carbon Management Measures of Integrated Passenger Transportation Hub

2014 ◽  
Vol 962-965 ◽  
pp. 2445-2451
Author(s):  
Ya Fan Li ◽  
Juan Wang ◽  
Xin Tian
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Emission Reduction ◽  
Low Carbon ◽  
Carbon Management ◽  
Low Carbon Economy ◽  
Passenger Transportation ◽  
Energy Consumption Analysis ◽  
Management Measures ◽  
Carbon Economy

This paper firstly analyzed the current situation of integrated passenger transportation hub, putting forward the integrated passenger transportation hub had a strong advantage on developing green low-carbon economy. And then based on the energy consumption analysis of integrated passenger transportation hub, energy saving and emission reduction management measures were proposed.

Data Center Room Air Conditioning Energy Consumption Analysis

2014 ◽  
Vol 672-674 ◽  
pp. 518-521
Author(s):  
Li Fei Song ◽  
Tao Li ◽  
Qi Fen Li ◽  
Lin Hui Zhao ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Data Center ◽  
Air Conditioning ◽  
Field Research ◽  
Northern China ◽  
Air Conditioning System ◽  
Energy Consumption Analysis ◽  
Energy Saving Technology

In this paper, the Unicom's medium-sized IDC room in a city of northern China is the research object for the study. Based on field research of the room refrigeration conditions, data center room air conditioning system is carried out to optimize and for energy conservation research. Through the analytic methods of energy saving-technology, the best energy saving solutions is explored.

On-Site Inspection and Analysis on Earth Architecture’s Enclosure Construction

2013 ◽  
Vol 357-360 ◽  
pp. 492-498
Author(s):  
Hong Yu ◽  
Hai Jun Sun
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Environmental Protection ◽  
Influential Factors ◽  
Earth Construction ◽  
The Earth ◽  
New Countryside ◽  
Actual Energy Consumption ◽  
Saving Effect ◽  
Good Heat

In order to assess the human settlements situation of earth construction and analyse Environmental protection and energy saving effect of the earth construction's enclosure-construction, we choose Jinan's earth construction--adobe houses--to conduct the detection and analysis of energy saving and were based on the factual date to calculate enclosure-construction's heat transfer coefficient K and the actual energy consumption to analyses the influential factors of the energy consumption and determine the main part of the energy saving effect of energy consumption based on the Extensive research of the ecological environment and earth construction in Shandong province. The results show that the typical enclosure-structure with good heat saving capacity can maintain the indoor thermal stability. Through the calculation of heat retaining structure, we can know that the tested adobe house's energy consumption is larger than normal house. it suggested that the earth construction has the characteristics of better energy saving and environmental protection. seeing that the factual tested adobe house's lower intensity , bad decoration and imperfection ,we put forward the suitable earth buildings scheme of the construction of new countryside.

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.

A Novel Coal-Fired CHP System Integrated With Steam Ejectors to Realize Heat-Power Decoupling and Energy Saving

2020 ◽  
Author(s):  
Miaomiao Liu ◽  
Ming Liu ◽  
Shuran Zhao ◽  
Gege Song ◽  
Junjie Yan
Keyword(s):  
Energy Saving ◽  
Heat Load ◽  
Waste Heat ◽  
High Energy ◽  
Steam Turbines ◽  
Heat Power ◽  
Coal Consumption ◽  
Decoupling Method ◽  
Power Load ◽  
Power Decoupling

Abstract Traditional combined heat and power (CHP) units should run in the heat-controlled mode. The adjustable range of power load is restricted by the heat load, and the minimum power load increases with the heat load. Because of high penetration of intermittent renewable power, operational flexibility of CHP units is highly required. It is necessary to adopt some technical solutions to realize heat-power decoupling for CHP units. To find a heat-power decoupling method with low investment and high energy efficiency, the steam ejectors, simple in structure and low in cost, are applied to design a novel heat-power decoupling system in this study. Steam ejectors can recover the waste heat of exhaust steam of steam turbines. Therefore, the integration of steam ejector may realize heat-power decoupling and energy saving simultaneously. Three heat-power decoupling systems with steam ejectors are designed. The heat-power decoupling performance and energy consumption characteristics of these systems are investigated with a reference 330 MW coal-fired CHP unit. Results show that all three modified systems can realize heat-power decoupling. The heat-power decoupling performance of improved system III is the best, and improved system I has the least coal consumption rate for power generation.

Closed Refrigerated Display Cabinets

2019 ◽  
pp. 1-23
Author(s):  
Onrawee Laguerre ◽  
Nattawut Chaomuang
Keyword(s):  
Literature Review ◽  
Potential Energy ◽  
Product Quality ◽  
Energy Saving ◽  
Temperature Profile ◽  
Food Quality ◽  
Field Studies ◽  
Air Infiltration ◽  
Potential Energy Saving ◽  
Determining Factor

The use of closed refrigerated display cabinets in supermarkets is in progression because of the potential energy saving compared to the open ones with an air infiltration at the front. However, the influence of the presence of doors on product temperatures (determining factor of product quality) is much less studied. For better understanding the interest of the use of closed display cabinets, this chapter presents the state of the art of field studies, the airflow and temperature profile in the closed display cabinet, the influence of the presence of doors/the frequency of door openings and the room temperature. Finally, a literature review of studies on food quality in the closed display cabinet is presented.

Energy-Saving Test and Analysis of a Steel Residential Building in Cold Regions of China

2011 ◽  
Vol 243-249 ◽  
pp. 6938-6941
Author(s):  
Xiao Tong Peng ◽  
Chen Lin
Keyword(s):  
Energy Consumption ◽  
Energy Dissipation ◽  
Energy Saving ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Envelope ◽  
Thermal Design ◽  
Actual Energy Consumption ◽  
Site Test ◽  
Heat Bridge

An on-site test on envelope of a typical steel residential building in cold region is performed. The testing results provide evaluation bases for the energy-saving effects of the steel residential building. In order to evaluate the main factors that influence energy dissipation of the building and estimate the main energy dissipation positions, the heat transfer coefficient K of envelope and its actual energy consumption are calculated based on the testing data. The results indicate that the building envelope has good heat storage property and it could keep indoor thermal stability; the steel frames and windows have heat bridge effects. Through calculations of the energy consumption of envelope, it is showed that the tested building only meet the requirement of energy saving by 50%, instead of 65%; the external walls and windows are main energy dissipation parts. Finally the thermal design recommendations about steel residential buildings are proposed.

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