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Figure 4: House of Harilal Dhami

Figure 4 House of Harilal Dhami

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Figure 2: Master Plan (Top), Site Plan (Bottom) Figure 1: House of Kaluram Majhi
Figure 2: Master Plan (Top), Site Plan (Bottom) Figure 1: House of Kaluram Majhi
This study aims to check the thermal comfort for the occupants of two different regions. One is, Sundarharaicha, Morang District, altitude of 155 m, with a Tropical climate at Terai region. The other is Bhujung, Lamjung, altitude of 1676 m, with Temperate climate with Dry Winter and Warm Summer. The climates are referred to new climatic classification of Nepal (Karki, Talchabhadel, Aalto, & Baidya, 2015). The
This study aims to check the thermal comfort for the occupants of two different regions. One is, Sundarharaicha, Morang District, altitude of 155 m, with a Tropical climate at Terai region. The other is Bhujung, Lamjung, altitude of 1676 m, with Temperate climate with Dry Winter and Warm Summer. The climates are referred to new climatic classification of Nepal (Karki, Talchabhadel, Aalto, & Baidya, 2015). The
Figure 3: Elevation Main Unit (Top), Main unit section and Kitchn Elevation (Bottom)
Figure 3: Elevation Main Unit (Top), Main unit section and Kitchn Elevation (Bottom)
Roof:
Roof:
Kitchen has a door of 0.9m X 1.6m, one at the southern wall. This side also has a bamboo lattice window (Figure 4) of 0.75mx1.5m. South wall is shaded by the lean to roof projection of 0.6m wide. Living room with the room selected for the study has door two windows of 1.2mX 1.2m and 0.7mX1.2m. It has a door of 0.9mX2.1m. Both the windows are shaded by surrounding vegetation. Door is shaded by 1.7m wide veranda to the east. Figure 6: Harilal Dhami house, Section of Kitchen and Livinc room (Top), Elevation of Kitchen and Section of Main room (Bottom)
Kitchen has a door of 0.9m X 1.6m, one at the southern wall. This side also has a bamboo lattice window (Figure 4) of 0.75mx1.5m. South wall is shaded by the lean to roof projection of 0.6m wide. Living room with the room selected for the study has door two windows of 1.2mX 1.2m and 0.7mX1.2m. It has a door of 0.9mX2.1m. Both the windows are shaded by surrounding vegetation. Door is shaded by 1.7m wide veranda to the east. Figure 6: Harilal Dhami house, Section of Kitchen and Livinc room (Top), Elevation of Kitchen and Section of Main room (Bottom)
Figure 7: House of Dilli Jung Gurung
Figure 7: House of Dilli Jung Gurung
This house also known as Gol Ghar is a typical typology (Figure 7). Ground has veranda (Syago) shaded with lean to roof stretching from east to south. These spaces are now also an extension of rooms as bed rooms (Khopi). It has a single main room with hearth at one shorter side of room attached to the wall, usually opposite to entrance. The main room has a half cut single log ladder to get access to the first floor. First floor is a store space (Kath). This type has a small room at the back of hearth (Chhinu) (Figure 8). The details of both rooms are as follows:
This house also known as Gol Ghar is a typical typology (Figure 7). Ground has veranda (Syago) shaded with lean to roof stretching from east to south. These spaces are now also an extension of rooms as bed rooms (Khopi). It has a single main room with hearth at one shorter side of room attached to the wall, usually opposite to entrance. The main room has a half cut single log ladder to get access to the first floor. First floor is a store space (Kath). This type has a small room at the back of hearth (Chhinu) (Figure 8). The details of both rooms are as follows:
Figure 10: House of Tek Bahadur Gurung 2.2.1. House of Tek Bahadur Gurung
Figure 10: House of Tek Bahadur Gurung 2.2.1. House of Tek Bahadur Gurung
Figure 9: Wall section of Dilli Jung Gurung house.
Figure 9: Wall section of Dilli Jung Gurung house.
Table 2: Air temperature and humidity data of house of Harilal Dhami Table 1: Air temperature and humidity data of house of Kaluram Majhi
Table 2: Air temperature and humidity data of house of Harilal Dhami Table 1: Air temperature and humidity data of house of Kaluram Majhi
Table 3: Air temperature and humidity data of house of Tek Bahadur Gurung
Table 3: Air temperature and humidity data of house of Tek Bahadur Gurung
The study has three stages in deriving the results. The study selects buildings, mentioned above, from two different regions. The buildings were part of the survey for a documentation work of a research team. With t he he HTC-1, indoor and outdoor humidity data were recorded wire with a sensor add sensor was placed out ed to side t and device itself is placed ai limited time in readings recorded by length of the morning, ) were recorde he se day d for p of an instrument, air temperature and . It has an extension it. So, the wire with he building in shade a convenient place, nsor wire. Relatable and evening, (three both the regions. The data is shown in the table below.
The study has three stages in deriving the results. The study selects buildings, mentioned above, from two different regions. The buildings were part of the survey for a documentation work of a research team. With t he he HTC-1, indoor and outdoor humidity data were recorded wire with a sensor add sensor was placed out ed to side t and device itself is placed ai limited time in readings recorded by length of the morning, ) were recorde he se day d for p of an instrument, air temperature and . It has an extension it. So, the wire with he building in shade a convenient place, nsor wire. Relatable and evening, (three both the regions. The data is shown in the table below.
Table 4: Air temperature and humidity data of house of Dilli Jung Gurung
Table 4: Air temperature and humidity data of house of Dilli Jung Gurung
This house also known as Chautari Ghar used to be Gol Ghar. It also has two floors similar to the house of Dilli Jung Gurung. The only difference is the rectangular floor plan after extension (Figure 10). The details of this unit are as follows:
This house also known as Chautari Ghar used to be Gol Ghar. It also has two floors similar to the house of Dilli Jung Gurung. The only difference is the rectangular floor plan after extension (Figure 10). The details of this unit are as follows:
Figure 13: Nicol and Rijal adaptive thermal comfort model. This model (Figure 13) shows that the minimum and maximum annual comfortable air temperature range as per Nicol is 17°C - 28°C. Similarly, as per Riyal, it is ranged between 13°C - 28°C. Air temperature above the rangeis warm discomfort and below is cold discomfort.
Figure 13: Nicol and Rijal adaptive thermal comfort model. This model (Figure 13) shows that the minimum and maximum annual comfortable air temperature range as per Nicol is 17°C - 28°C. Similarly, as per Riyal, it is ranged between 13°C - 28°C. Air temperature above the rangeis warm discomfort and below is cold discomfort.
Figure 14: CBE adaptive thermal comfort model. 3.2. CBE adaptive Thermal Comfort Tool This online tool (Figure 14) has two default model, predicted mean vote (PMV). PMV model is the “index that predicts the mean value of thermal sensation votes of a large group of persons, expressed on a seven-point scale” (ASHRAE, 2021). PMV model is the and adaptive model. Considering adaptive model, it suggests us the comfortable air temperature range after entering the prevailing outdoor temperature and operative indoor temperature (OIT). Where, OIT=(0.075 x outdoor temperature)+23.25.
Figure 14: CBE adaptive thermal comfort model. 3.2. CBE adaptive Thermal Comfort Tool This online tool (Figure 14) has two default model, predicted mean vote (PMV). PMV model is the “index that predicts the mean value of thermal sensation votes of a large group of persons, expressed on a seven-point scale” (ASHRAE, 2021). PMV model is the and adaptive model. Considering adaptive model, it suggests us the comfortable air temperature range after entering the prevailing outdoor temperature and operative indoor temperature (OIT). Where, OIT=(0.075 x outdoor temperature)+23.25.
The climatic data is referred from _ the weatherandclimate.com. The data is then fed to the computer model. It then suggests thermal comfort indicators. The illustration is shown in table below. Figure 16: Thermal comfort indicators from Mahoney Table. On the basis of these indicators, design recommendations with respect to layout, spacing, air movement, openings, walls and_ roof, protection of openings, outdoor features etc are provided by the table.
The climatic data is referred from _ the weatherandclimate.com. The data is then fed to the computer model. It then suggests thermal comfort indicators. The illustration is shown in table below. Figure 16: Thermal comfort indicators from Mahoney Table. On the basis of these indicators, design recommendations with respect to layout, spacing, air movement, openings, walls and_ roof, protection of openings, outdoor features etc are provided by the table.
Olgyay proposes this chart (Figur 15) for the quman physical comfort with reference to two parameters, relative humidity (%) and outdoor dry oulb temperature (°C). It suggests the combination of air temperature between 20°C - 30°C and relative humidity of approximately 20% -75% is hermally comfortable for human body. Any combination beyond this range would either require additional heat or sufficient air movement inside the room for the human body to sense thermal comfort. Figure 15: Olgyay Bioclimatic Chart
Olgyay proposes this chart (Figur 15) for the quman physical comfort with reference to two parameters, relative humidity (%) and outdoor dry oulb temperature (°C). It suggests the combination of air temperature between 20°C - 30°C and relative humidity of approximately 20% -75% is hermally comfortable for human body. Any combination beyond this range would either require additional heat or sufficient air movement inside the room for the human body to sense thermal comfort. Figure 15: Olgyay Bioclimatic Chart
Table 5: Comfort results of house of Kaluram Majhi, C-comfort, W-warm discomfort = artificial. In case of Harilal Dhami, the model shows little different results. With CBE model, for the house with straw roof is comfortable up to 12 noon. Then onwards shows warmer. This is because at around 10 am in the morning, the space was heated by hearth. The space was used to burn firewood t slightly increased the indoor air temperature. Same heat is retained by the roof and mud walls then after. The result is the warmer room from noon till the evening. The same space in Nicol and Riyal is comfortable, irrespective of heat gain. case of CGI roof, both model shows comforta environment throughout the day. The roof shad solar heat gain by the roof (Figure 5). Only in evening is warmer in case of Nicol and Rijal mod el. Both straw and CGI roofing needs movement of 1-4 m/s inside the room achieving comfortable indoor environment as per Olgyay’s Bioclimatic chart. he hat he In ble 1S ed during day time thereby reducing direct he air for
Table 5: Comfort results of house of Kaluram Majhi, C-comfort, W-warm discomfort = artificial. In case of Harilal Dhami, the model shows little different results. With CBE model, for the house with straw roof is comfortable up to 12 noon. Then onwards shows warmer. This is because at around 10 am in the morning, the space was heated by hearth. The space was used to burn firewood t slightly increased the indoor air temperature. Same heat is retained by the roof and mud walls then after. The result is the warmer room from noon till the evening. The same space in Nicol and Riyal is comfortable, irrespective of heat gain. case of CGI roof, both model shows comforta environment throughout the day. The roof shad solar heat gain by the roof (Figure 5). Only in evening is warmer in case of Nicol and Rijal mod el. Both straw and CGI roofing needs movement of 1-4 m/s inside the room achieving comfortable indoor environment as per Olgyay’s Bioclimatic chart. he hat he In ble 1S ed during day time thereby reducing direct he air for
Table 7: Comfort results for houses of Hills. R1-Main room, R2-extended room, C-comfort, CD-cold discomfort. 3 Results from Mahoney Table
Table 7: Comfort results for houses of Hills. R1-Main room, R2-extended room, C-comfort, CD-cold discomfort. 3 Results from Mahoney Table
CVUHIPaLIIIS Lite L1IViU Udla UL VY) “lls Witit ULI Mahoney table (Table 9), longer axis of the building is along east-west, compact layout, double banked room with temporary provision of ventilation, are satisfied by the design recommendations. The strong contradiction is that the table suggests light wall, roof with insulation. Unlikely, the walls and roofs are made of slate, slate that is heavy and at the same time has more time lag. The wall and roof elements are also the thermal storage elements in the house. Outdoor features are not recommended by the table. DESIGN RECOMMENDATIONS FOR BHUJUNG Table 9: Design recommendations for Bhujung, Lamjung
CVUHIPaLIIIS Lite L1IViU Udla UL VY) “lls Witit ULI Mahoney table (Table 9), longer axis of the building is along east-west, compact layout, double banked room with temporary provision of ventilation, are satisfied by the design recommendations. The strong contradiction is that the table suggests light wall, roof with insulation. Unlikely, the walls and roofs are made of slate, slate that is heavy and at the same time has more time lag. The wall and roof elements are also the thermal storage elements in the house. Outdoor features are not recommended by the table. DESIGN RECOMMENDATIONS FOR BHUJUNG Table 9: Design recommendations for Bhujung, Lamjung
Table 8: Design recommendations for Haraicha, Morang.
Table 8: Design recommendations for Haraicha, Morang.
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