99/03941 Estimation and measurement of electric energy consumption due to air conditioning cooling load

Didik Ariwibowo, in this paper explain that energy audit activities conducted through several phases, namely: the initial audit, detailed audit, analysis of energy savings opportunities, and the proposed energy savings. Total energy consumed consists of electrical energy, fuel, and materials in this case is water. Electrical energy consumption data obtained from payment of electricity accounts for a year while consumption of fuel and water obtained from the payment of material procurement. From the calculation data, IKE hotels accounted for 420.867 kWh/m2.tahun, while the IKE standards for the hotel is 300 kWh/m2.tahun. Thus, IKE hotel included categorized wasteful in energy usage. The largest energy consumption on electric energy consumption. Largest electric energy consumption is on the air conditioning (AC-air conditioning) that is equal to 71.3%, and lighting and electrical equipment at 27.28%, and hot water supply system by 4.44%. Electrical energy consumption in AC looks very big. Ministry of Energy and Mineral Resources of the statutes, the profile of energy use by air conditioning at the hotel by 48.5%. With these considerations in the AC target for audit detail as the next phase of activity. The results of a detailed audit analysis to find an air conditioning system energy savings opportunities in pumping systems. Recommendations on these savings is the integration of automation on the pumping system and fan coil units (FCU). The principle of energy conservation in the pumping system is by installing variable speed drives (VSD) pump drive motor to adjust speed according to load on the FCU. Load variations FCU provide input on the VSD pumps to match. Adaptation is predicted pump can save electricity consumption up to 65.7%. Keywords: energy audit, IKE, AC

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Electric Energy Consumption Monitoring System and Restricting Temperature Settings Air Conditioning Equipment

International Journal of Computer Applications ◽

10.5120/ijca2019919399 ◽

2019 ◽

Vol 178 (47) ◽

pp. 42-49

Author(s):

Ali A. ◽

Johan F. ◽

Veny V.

Keyword(s):

Energy Consumption ◽

Monitoring System ◽

Air Conditioning ◽

Electric Energy ◽

Electric Energy Consumption ◽

Conditioning Equipment

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Energy and economic analysis of an auditorium’s air conditioning system with heat recovery in various climatic zones

Thermal Science ◽

10.2298/tsci170916026p ◽

2018 ◽

Vol 22 (Suppl. 3) ◽

pp. 933-943 ◽

Cited By ~ 1

Author(s):

Konstantinos Papakostas ◽

Ioannis Tiganitis ◽

Agis Papadopoulos

Keyword(s):

Energy Consumption ◽

Air Conditioning ◽

Heat Recovery ◽

Electric Energy ◽

Payback Period ◽

Climatic Conditions ◽

Energy Calculation ◽

Climatic Zones ◽

Climate Conditions ◽

Electric Energy Consumption

In many heating, ventilation and air-conditioning (HVAC) applications, heat recovery devices are installed, aiming at reducing energy consumption. Especially in buildings requiring a high percentage of outside air for ventilation, there is a high potential for heat recovery from exhaust air. Climatic conditions are an important parameter which affects the recovered heat and the payback period of the heat recovery device. In this paper, a 250 person auditorium is used as a model to estimate the applicability of an air-to-air fixed-plate heat exchanger installed in the air handling unit of the HVAC system. The application is considered for four cities, representative of climatic zones A, B, C, D of Greece, which also represent typical Mediterranean climate conditions. Zone A, Crete and Southern Greece, is similar to Nicosia (Cyprus) and Palermo (Sicily), Zone B, with Athens, corresponds to Rome (Italy) and coastal Spain, Zone C with Thessaloniki is similar to the Toulon (France) and Split (Croatia) and Zone D, with its continental climate is more like Milan (Italy) and Lyon (France). An energy analysis with the modified bin method energy calculation was performed to calculate (a) the heating and cooling energy that can be recovered, (b) the reduction in HVAC equipment, and (c) the expected payback period. For the specific climatic conditions examined, it was proven that: heating energy consumption decreased by 31 to 40%, depending on occupancy, while electric energy consumption didn?t change notably; the payback period does not exceed 24 months, depending on climate zone and occupancy.

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Solar Panel Orientation Based on Building Power Consumption

Volume 6B: Energy ◽

10.1115/imece2014-37643 ◽

2014 ◽

Cited By ~ 1

Author(s):

Mesut Cabuk ◽

Mohammad H. Naraghi

Keyword(s):

Energy Consumption ◽

Energy Production ◽

Present Model ◽

Electric Energy ◽

Solar Panel ◽

Cooling Load ◽

Electric Energy Consumption ◽

Index Model ◽

Peak Energy ◽

June July

In the present work electric energy consumption of a typical building based on its cooling load for summers of five consecutive years were evaluated. The cooling load hourly variations were evaluated based on the eQuest software. It was determined that the peak electric energy consumption of the building occurs around 4:00PM during months of June, July and August. Then the clear sky model was used to determine the solar panel orientation to best match peak energy consumption. The best solar panel orientation to meet building’s peak demand is about 50 degrees tilt angle with azimuth angle of about between fifty and sixty degrees westward. The clearness index model is then used to evaluate the annual energy production of solar panel. It was determined that the annual energy production of the panel based on the present model is approximately 22–23% less than a southward orientation. The present model however, produces twice more electric power during peak demanding hours, when it is needed most.

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