Cooling Load Calculations

Hashim, Hafiz M.; Sokolova, Ekaterina; Derevianko, Oleg; Solovev, Denis B.

doi:10.1088/1757-899x/463/3/032030

Cited by 33 publications

(13 citation statements)

References 11 publications

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“…To maintain a uniform thermal condition, the cooling load principle must be applied. The cooling load is the rate at which a cooling system or process must remove heat from a conditioned zone to maintain constant dry bulb temperature and humidity [33]. The building components which affect the cooling loads are external input (walls, roof, floor, window and ceiling), internal supply or internal load (lightening, occupants, appliances and equipment), infiltration (air leaks, moisture migration), system (duct leakage, heating, ventilation) [32].…”

Section: Cooling Load Principlementioning

confidence: 99%

Performance Evaluation of Phase Change Materials to Reduce the Cooling Load of Buildings in a Tropical Climate

Sangwan

Mehdizadeh‐Rad

et al. 2022

Sustainability

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Tropical region such as Darwin has similar weather patterns throughout the year, thus creating higher energy demands in residential buildings. Typically, buildings consume about 40 per cent of the total energy consumption for indoor heating and cooling. Therefore, building envelopes are linked with design strategies such as the use of thermal energy storage and phase change materials (PCM) to minimize this energy consumption by storing a large amount of thermal energy. Primarily, PCMs are targeted by researchers for use in different components of buildings for thermal efficiency; thus, this study aimed to provide a suitable PCM to optimize indoor thermal comfort and minimize the cooling loads of residential buildings in tropical climates through simulation of a tropical climate building and provide optimum thickness for the selected material. Microencapsulated PCM mixed with gypsum in wallboards were used to reduce the cooling load of a building located in Darwin. The cooling load of the building was calculated using Revit software. A comparison of the cooling load of the building was carried out using PCM-incorporated wallboards of thicknesses of 0 cm, 1 cm and 2 cm in Energy Plus software. The total cooling load decreased by 1.1% when the 1-centimetre-thickness was applied to the wall, whereas a 1.5% reduction was obtained when a 2-centimetre-thick PCM layer was applied. Furthermore, the reduced cooling loads due to impregnation of the PCM-based gypsum wallboard gave reduced energy consumption. Ultimately, the 2-centimetre-thickness PCM-based gypsum wallboard gave a maximum reduction in cooling load with a 7.6% reduction in total site energy and 4.76% energy saving in USD/m2/year.

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Section: Cooling Load Principlementioning

confidence: 99%

Performance Evaluation of Phase Change Materials to Reduce the Cooling Load of Buildings in a Tropical Climate

Sangwan

Mehdizadeh‐Rad

et al. 2022

Sustainability

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“…The cooling load of a building is the amount of heat energy that must be removed from a space to maintain the parameters (temperature, relative humidity, and air velocity) within the acceptable comfort range [5].…”

Section: Introductionmentioning

confidence: 99%

“…According to [5] and [6], the determination of building cooling load is a prerequisite for rightsizing a building cooling system. The researcher [7] stated that an inaccurate estimation of building cooling load causes waste of energy due to the use of an oversize system or sacrificing thermal comfort due to the use of undersize cooling system.…”

Section: Introductionmentioning

confidence: 99%

“…The classical approach of building cooling load estimation can be traditional or computerbased. According to [5], the traditional method includes the following: heat balance (HB) method, transfer function method (TFM), etc. The difficulty in solving unsteady equations with unsteady or dynamic boundary conditions rendered the traditional method unpopular.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of Cooling Load of Office Buildings of Bayero University Kano

Haruna¹

2022

jreas

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Estimation of building cooling load is of critical importance for achieving energy efficiency and thermal comfort in buildings. The computer-based methods for cooling load estimation are expensive while most of the inverse models are complex and require adequate time to train the models. In this paper, a multiple linear regression model was developed using the concept of Taguchi orthogonal array. The model developed has high performance based on the computed 𝑅 2 . The cooling load model developed was validated using EnergyPlus thermal simulation. Employing the cooling load model, the cooling load of the site office building was 10.48 kW while the EnergyPlus simulated result was 10.29 kW. The RMSLE between the predicted and the EnergyPlus simulated result is 0.017 which indicates that the model developed has high predictive power. The proposed model has high inference and prediction powers and could be used for predicting cooling load of office buildings of Bayero University Kano (BUK) or any other building with similar attributes.

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“…The variation in the number of worshipers from day to day means that the occupancy's intensity is not equal [5]. One of the most critical factors affecting making this mosque a suitable place for worship is cooling and air conditioning, and the thermal loads must be studied for cooling in the winter and heating in the summer to choose the appropriate air conditioning units and meet the requirements of thermal comfort and obtain the best air distribution in the mosque [6].…”

Section: Introductionmentioning

confidence: 99%

Thermal Effect of Lighting and Window-to-Wall Ratio in Mosques: A Case Study in a Hot Climate – Saudi Arabia

Alshareef

Alosaimi

Alwetaishi

et al. 2021

WIT Transactions on Ecology and the Environment

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In mosques, the worshipers must feel comfortable to perform the prayer with reverence and reassurance. The question is whether there is a big difference in temperature ratio in the building upon a slight change of some factors, such as lighting type and window-to-wall ratio, and does the size of windows affect people's thermal comfort in the building or not? This research aims to study the thermal effect resulting from these factors and compare the impact of each of them on the mosque's cooling loads. The King Fahd Mosque in Taif was chosen because it has a free air-conditioning operation with no heating or cooling loads all year round. The size of the windows is large, to study the system accurately. The study has various methods: Simulating the mosque through one of the computer programs (TAS EDSL) and knowing the effect of sunlight concerning the size of the windows and the mosque's lighting on all days of the year. Calculations of the heat effect derived from different lighting types. Also, field monitoring of the mosque using a set of devices to study the building and determine the actual sunlight and lighting effect. Finally, a survey of worshipers about their feeling of thermal comfort in this mosque was also investigated.

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Cooling Load Calculations

Cited by 33 publications

References 11 publications

Performance Evaluation of Phase Change Materials to Reduce the Cooling Load of Buildings in a Tropical Climate

Performance Evaluation of Phase Change Materials to Reduce the Cooling Load of Buildings in a Tropical Climate

Estimation of Cooling Load of Office Buildings of Bayero University Kano

Thermal Effect of Lighting and Window-to-Wall Ratio in Mosques: A Case Study in a Hot Climate – Saudi Arabia

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