Effects of thermal environment on elderly in urban and rural houses during heating season in a severe cold region of China

The application of attached sunspace passive solar heating systems (ASPSHS) for farmhouses can improve building performance, reduce heating energy consumption and carbon dioxide emissions. In order to take better use of the attached sunspace to prevent heat transfer or promote natural ventilation, this paper presented a zero-state response control strategy for the opening and closing time of active interior window in the ASPSHS. In order to verify the application of this strategy, an attached sunspace was built in an actual farmhouse. A natural ventilation heat exchange model was built based on the farmhouse with attached sunspace. The proposed zero-state response control strategy was implemented in TRNSYS software. Field measurement in living lab was carried out to inspect the distribution of the thermal environment in the farmhouse with attached sunspace under a zero-state response control strategy in the cold region of northern China. The experimental results show that, even under −5.0–2.5 °C ambient temperature, the application of zero-state response control strategy effectively increases the internal temperature to an average of 25.45 °C higher than the outside, with 23% indoor discernible temperature differential in the sample daytime. The whole-season heating performance was evaluated by simulating the model for the heating season in 2020–2021. The simulation demonstrates that the ASPSHS under zero-state response control strategy can maintain a basic indoor temperature of 14 °C for 1094 h during the heating season, with a daytime heating guarantee rate of 73.33%, thus ensuring higher indoor heating comfort during the day. When compared to a farmhouse with an attached sunspace under the zero-state response control strategy, the energy savings rate can be enhanced by 20.88%, and carbon emissions can be reduced by 51.73%. Overall, the attached sunspace with the zero-state response control strategy can effectively increase the indoor temperature when the solar radiation is intensive and create a suitable thermal environment for the farmhouse in the cold region of northern China.

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Strategy for Application of Non-Wood Fibrous Material on Roofs at Rurual Areas in Cold Region

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.730.105 ◽

2015 ◽

Vol 730 ◽

pp. 105-108

Author(s):

Xin Ran Wang ◽

Yu Zhang

Keyword(s):

Fibrous Material ◽

Thermal Environment ◽

Material Selection ◽

Poor Quality ◽

Engineering Practice ◽

Construction Technology ◽

Design Strategies ◽

Cold Region ◽

Climate Conditions ◽

Insulation Performance

Large energy consumption, serious pollution and poor quality of indoor thermal environment are generally seen during construction in villages and towns in China nowadays, leading to poor building insulation performance. Envolope of enclosure of a buidling is key to its insulation performance. Material selection of building enclosures and green design of construction technology are the key to promoting insulation performance of the building as villages and towns in cold region are subject to special geographical position, climate conditions and economic factors. With a focus on research of traditional non-wood fibrous material modification with existing technology and the engineering practice in non-wood fibre roof in villages and towns of cold region, this paper came up with the prospects of its applicatin in the following design strategies including “ecological and conservation-oriented roofing with modified local materials, new hybrid roofing with simplified construction technology and paper tensioning roofing with innovative synthetic materials”.

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Air-to-Water Heat Pump Monitoring in the Cold Climate Region

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.590.599 ◽

2014 ◽

Vol 590 ◽

pp. 599-603

Author(s):

Teer Andrus Koiv ◽

Mariin Ling ◽

Kaspar Tennokese

Keyword(s):

Ambient Temperature ◽

Heat Pump ◽

Energy Requirement ◽

Cold Climate ◽

Winter Period ◽

Heating Season ◽

Cold Region ◽

Additional Energy ◽

Climate Region

This article gives an overview of the study on using the air-to-water heat pump (A&WHP) for heating buildings in cold climate regions. The study was conducted in a relatively cold region (59°N), where the ambient temperature during the winter usually falls below-20°C. Despite the fact the COP of the air-to-water heat pump in the winter period was 2.5 on average and during the heating season of 2013/2014 the additional energy requirement was less than 3%.

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Indoor environmental conditions in urban and rural homes with older people during heating season: A case in cold region, China

Energy and Buildings ◽

10.1016/j.enbuild.2018.01.064 ◽

2018 ◽

Vol 167 ◽

pp. 334-346 ◽

Cited By ~ 12

Author(s):

Guangtao Fan ◽

Jingchao Xie ◽

Hiroshi Yoshino ◽

U. Yanagi ◽

Kenichi Hasegawa ◽

...

Keyword(s):

Older People ◽

Environmental Conditions ◽

Heating Season ◽

Cold Region

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Investigation of thermal environment and the associated energy consumption of transportation buildings along the expressways in the cold region of China: A case study

Energy and Built Environment ◽

10.1016/j.enbenv.2020.03.004 ◽

2020 ◽

Vol 1 (3) ◽

pp. 278-287

Author(s):

Xiangfei Kong ◽

Xu Qiao ◽

Guangpu Yuan

Keyword(s):

Energy Consumption ◽

Thermal Environment ◽

Cold Region

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A PROPOSAL FOR THE THERMAL ENVIRONMENT OF GLASS-COVERED SPACES IN A COLD REGION

AIJ Journal of Technology and Design ◽

10.3130/aijt.5.99_1 ◽

1999 ◽

Vol 5 (7) ◽

pp. 99-104

Author(s):

Katsumi KUBOTA ◽

Masamichi ENAI ◽

Noboru ARATANI

Keyword(s):

Thermal Environment ◽

Cold Region

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Field Measurement and Analysis of the Micro Climate of a Campus Square

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.610-613.923 ◽

2012 ◽

Vol 610-613 ◽

pp. 923-927

Author(s):

Yan Yan Huang ◽

Shi Chao Deng

Keyword(s):

Wind Speed ◽

Public Space ◽

Thermal Environment ◽

Environment Design ◽

Cold Region ◽

Actual Measurement ◽

Data Collection And Analysis ◽

Measurement And Analysis ◽

Winter Cold

A square is an important multi-functional public space on campus, which can be used as a venue for traffic, gathering, recreational activities and cultural events, and thus the thermal environment of the campus square will directly influence the overall environmental quality of campus. This paper studies a campus square in the summer-hot and winter-cold region, selects typical positions to conduct actual measurement of parameters, such as temperature, relative humidity, wind speed and solar radiation, which indicate the thermal environment. Based on data collection and analysis, it is concluded that the thermal environment of the campus square is affected by microclimate factors such as the square underlying surface properties, vegetation and building and road orientations. This paper is aimed at exploring the regularity of the correlation between microclimate factors and thermal environment in order to facilitate the improvement of the thermal environment of the campus square, make it more comfortable and provide ideas for the landscape and architectural environment design.

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