scholarly journals Sustainable Design Alternatives and Energy Efficiency for Public Rental Housing in Korea

2020 ◽  
Vol 12 (20) ◽  
pp. 8456
Author(s):  
So-Young Lee ◽  
Myoung-Won Oh
Keyword(s):  
Energy Efficiency ◽  
Rental Housing ◽  
Climatic Conditions ◽  
Energy Costs ◽  
Alternative Housing ◽  
Heating And Cooling ◽  
Design Alternatives ◽  
Public Rental Housing ◽  
Window Area ◽  
Heating Loads

The orientation and shape of a building can influence energy efficiency in both heating and cooling mechanisms. Given the climatic conditions of Korea, many people are concerned about housing orientation and prefer south-oriented locations. As such, many housing complexes consist of a series of long narrow units that are south-facing. The purpose of this study is to investigate design alternatives for the layout of a building complex, size of households, width to depth ratios of floorplans, and design and type of façade; to examine energy efficiency using energy simulation programs; and to suggest diverse design alternatives for public rental housing, as well as energy-efficient options. The alternative housing units, which are more square-shaped than the typical long and rectangular type, resulted in higher energy costs. Simulation results show that as the solar radiation load increases or the window area increases due to plan alteration, there is simultaneously a significant increase and decrease in the cooling and heating loads, respectively. The performance of the suggested layout alteration greatly increased the heating load and slightly decreased the cooling load with similar total energy costs.

scholarly journals Energy efficiency of ground-air heat exchanger in the ventilation and airconditioning systems

2018 ◽  
Vol 46 ◽  
pp. 00015
Author(s):  
Rafał Łuczak ◽  
Bogusław Ptaszyński ◽  
Zbigniew Kuczera ◽  
Piotr Życzkowski
Keyword(s):  
Heat Exchanger ◽  
Air Conditioning ◽  
Energy Analysis ◽  
Climatic Conditions ◽  
Energy Costs ◽  
Air Conditioning System ◽  
Heating And Cooling ◽  
Air Heating ◽  
Article Analysis ◽  
Working Together

In the article, analysis of heat exchangers, working together with air-conditioning system, are presented. For an object with known requirement to hot and cold, air heat exchanger (ground type) is designed. For that defined system, the energy analysis of heat exchanger’s energy work in yearly cycle, including a work of air treatment with full (cooling - desiccation and heating of air in the summer, heating and moisturizing in the winter) and not quite full (cooling of air in the summer, heating of air in the winter) air-conditioning are examined. Effects connected with a reduction of energy costs needed for heat treatment of air blown to the room are specified included the climatic conditions like air heating and cooling degree-hours.

scholarly journals Energy Efficiency of a Greenhouse for the Conservation of Forestry Biodiversity

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Alvaro Marucci ◽  
Maurizio Carlini ◽  
Sonia Castellucci ◽  
Andrea Cappuccini
Keyword(s):  
Energy Efficiency ◽  
Central Italy ◽  
Climatic Conditions ◽  
Forest Biodiversity ◽  
Heating And Cooling ◽  
Material Systems ◽  
Microclimatic Conditions ◽  
Two Phases ◽  
Cover Material ◽  
Vegetable Material

Forest biodiversity conservation is one of the most interesting and crucial problems in forestry world. Currently, the conservation methods are based on two phases: the conservation of seeds at low temperatures and the multiplication of vegetable material. This latter operation can be successfully developed in properly designed greenhouses. The aim of this paper is to define a type of greenhouse which is particularly suitable for plant material propagation in order to preserve forest biodiversity in the area of the Central Italy. Some general parameters were first defined for a correct planning of the structure, such as: the shape of the section, volume, cover material, systems for heating and cooling, and those for the control of the internal microclimate parameters (light, air temperature, and relative humidity). Considering the construction characteristics and the climatic conditions of the place, the internal microclimatic conditions have been later determined by the useful implementation in TRNSYS in order to analyse the energy efficiency of the greenhouse.

A Study on the Improvement of the Public Rental Housing Policy in Korea

2009 ◽  
Vol 39 (3) ◽  
pp. 727-744
Author(s):  
Sang-Bong KIM ◽  
Ki-Sik HWANG ◽  
Rok RYU
Keyword(s):  
Housing Policy ◽  
Rental Housing ◽  
The Public ◽  
Public Rental Housing

Additional methods to improve the energy efficiency of oil pipeline transportation

2020 ◽  
Vol 10 (5) ◽  
pp. 558-565
Author(s):  
Marat R. Lukmanov ◽  
◽  
Sergey L. Semin ◽  
Pavel V. Fedorov ◽  
◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Pipeline System ◽  
Energy Costs ◽  
Improvement Program ◽  
Oil Pipeline ◽  
Energy Efficiency Improvement ◽  
Oil Transportation ◽  
Pumping Equipment ◽  
Preparatory Work

The challenges of increasing the energy efficiency of the economy as a whole and of certain production sectors in particular are a priority both in our country and abroad. As part of the energy policy of the Russian Federation to reduce the specific energy intensity of enterprises in the oil transportation system, Transneft PJSC developed and implements the energy saving and energy efficiency improvement Program. The application of energy-saving technologies allowed the company to significantly reduce operating costs and emissions of harmful substances. At the same time, further reduction of energy costs is complicated for objective reasons. The objective of this article is to present additional methods to improve the energy efficiency of oil transportation by the example of the organizational structure of Transneft. Possibilities to reduce energy costs in the organization of the operating services, planning and execution of work to eliminate defects and preparatory work for the scheduled shutdown of the pipeline, the use of pumping equipment, including pumps with variable speed drive, the use of various pipelines layouts, changing the volume of oil entering the pipeline system and increase its viscosity.

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