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Energy Management and Energy Conservation Opportunities
Published in Anil Kumar, Om Prakash, Prashant Singh Chauhan, Samsher, Energy Management, 2020
Anil Kumar, Om Prakash, Prashant Singh Chauhan, Samsher
Heating and Cooling SystemsReplace or clean or wash furnace and air conditioner filters routinely to retain energy efficient systems.Clean the filter of AC that can clear the air passage; system will work efficiently.Curtains, hangings, carpets, and furniture should not block air vents. Vents should be cleaned frequently either with vacuum cleaner or manually (broom).Use only programmable thermostat-based systems to regulate heating and cooling.Fit ceiling fans for proper air circulation, which enhances the efficiency of heating and cooling systems.Put film on windows which are not in use generally.Deciduous trees should be planted outside house on the south side (Northern hemisphere). It gives a shade in summer and allows sunlight in winter season.Water-heated radiators are installed in a house or apartment for room heating purposes. The insulation board should be placed between the radiators and the outside walls to reduce its losses.Try to avoid use of water beds, which consume huge amounts of energy to heat in the winter. If it is essential in extreme cold climates, then insulate and cover it to retain the heat inside.Apply attic insulation to improve the efficiency of furnace and air conditioner.
Study on joint management of indoor natural ventilation environment by coupling ceiling fan with air conditioner
Published in Journal of Asian Architecture and Building Engineering, 2022
The research object was the studio with ventilation openings shown in Figure 1. Its typical characteristics were the high density of personnel, large fresh air load, large enclosure structure load and high indoor heat dissipation. The working condition of the studio is intensely terrible in summer, so it is necessary to take proactive measures to improve the working conditions of staff. This paper is intended to obtain an energy-saving and comfortable scheme suitable for an indoor environment with high heat dissipation and personnel density by applying dual or multi-coupling environmental treatment measures. The air treatment scheme for the studio is shown in Table 1. In the table, Scheme 1 is the mixed ventilation mode of natural vent and ceiling fan; Scheme 2–4 is natural ventilation coupled by air conditioning; Schemes 5 and 6 are the triple coupling mode of natural ventilation, air conditioning and ceiling fan. In Schemes 1, 5 ~ 7, two ceiling fans are hung uniformly from the ceiling of the room. In Schemes 2–7, air conditioner was installed in the middle of the wall, except the north wall which was 2.4 m above the ground. The reason why the air conditioner was not installed on the north wall was that the surface temperature of the north wall was lower than that of the south wall due to hot pressing, and that the ventilation effect of the northern exhaust outlet was stronger than that of the southern one. Thus, the air condition installed on the north wall would reduce natural ventilation capacity, thus requiring more air supply energy.
Optimal interior design for naturally ventilated low-income housing: a design-route for environmental quality and cooling energy saving
Published in Advances in Building Energy Research, 2020
A step-wise approach of CFD simulations followed by numerical analyses was adopted here to determine the most natural ventilation effective NSGA-II derived optimal interior design layout that would harness maximum cooling energy saving potential by utilizing natural ventilation. The concept of ‘natural ventilation hours’ was implemented here to compare the energy demand of the optimal solutions. The methodology initiated with hourly CFD simulations of the NSGA-II derived optimal design layouts (ODLs) in natural ventilation condition. In order to compare the natural ventilation effectiveness, the ODLs were also simulated in mechanical ventilation conditions by employing ceiling fan and air conditioning (AC). The aim was to identify the optimal indoor design layout with a maximum number of potential natural ventilation hours i.e. the number of hours a unit would not require the aid of a ceiling fan or AC for achieving comfort conditions. The step-wise approach is described below.
A study on the residential building construction information, thermal sensation and the behavior of households in Tamilnadu State – a questionnaire survey
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Lenin Vadugapalayam Rangasamy, Sivalakshmi Sivananthan, Raja Muthu
5.It was reported that occupants feel hot in the room. The cooling was achieved by means of ceiling fan (80.12%) or air-conditioning units (46.77%) or both. Operable windows (31.91%) window blinds and shading devices (29.28%) showed insignificant percentages.