The Oklahoma Field Test: Air-conditioning electricity savings from standard energy conservation measures, radiant barriers, and high-efficiency window air conditioners

Efficient energy use is critical for the success of any industrial facility since reduced energy consumption through energy conservation/saving programs can benefit not only consumers and utilities, but society in general as well. In particular, reduced energy consumption generally leads to reduced emissions of greenhouse gases and other air pollutants into the environment. It also helps reduce the operational costs in the facility. There is a strong need to take some energy saving measures in every plant/ facility. Although these may be quite diverse, some of these measures include thermal insulation, use of more efficient equipment, heat recovery systems, high efficiency lighting, changing the fuel, reducing the cost of compressed air, and enhancing productivity. In this study, some certain energy conservation measures are considered for assessing a packaging film manufacturing facility in Gaziantep, Turkey. Taking advantage of dry and hot climates of the city, cooling compressor inlet air by evaporative cooling technique is also assessed. Our investigation shows that there is a huge room for energy conservation measures. The total savings potential are expected to be 869,350 YTL (about $725,000) representing about 16% of the total energy consumption. The payback periods for the identified measures are justified. We believe that the results are typical rather than exceptional for the industrial sector in Turkey.

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Energy Efficient and Cool Storage Assisted Air-Conditioning System for Hospital Building

10.1115/imece2000-1343 ◽

2000 ◽

Author(s):

Gopal P. Maheshwari ◽

Raba’a A. Al-Murad ◽

Yehya N. Al-Hadban ◽

Mohammed J. Sebzali

Keyword(s):

Energy Conservation ◽

Energy Efficient ◽

Air Conditioning ◽

Cost Effective ◽

Cooling Load ◽

Cool Storage ◽

Conservation Measures ◽

Building Load ◽

Energy Conservation Measures ◽

The Impact

Abstract Air-conditioning (A/C) is an important sector for Kuwait. It is not only the single largest consumer of electricity, its yearly import accounts for well over 200 million US dollars. Energy conservation measures have been in practice in Kuwait since 1983 through a well defined code of practice enforced by the Ministry of Electricity and Water (MEW). Additional energy efficient products and techniques developed thereafter, however, have not been introduced as the electricity is highly subsidized and the MEW code has not been modified. Applications of some of the cost effective energy conservation measures and use of cool storage for peak power shaving have been carried out as a demonstration project in a two-story building, housing the Center for Speech and Audio Therapy having 3,180 m2 of air-conditioned space. As a first step, the building cooling load was re-estimated using an energy simulation computer program and proper design specifications. It was found to be 31.4% lower than the original estimated load of 161.3 tons of refrigeration (RT). Use of energy-efficient windows and cooling recovery units that were found to be cost-effective resulted in a final building load of 64.5 RT. Finally, ice storage was incorporated to meet 50% of the peak cooling load. This paper presents the complete design details including the impact of a building load simulation program and cost benefit analysis of important energy conservation measures. It also presents a design and operation scheme for a cool storage, assisted A/C system and its performance results collected during the summer of 1998.

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Energy Conservation Measures for a Research Data Center in an Academic Campus

Energies ◽

10.3390/en14102820 ◽

2021 ◽

Vol 14 (10) ◽

pp. 2820

Author(s):

Khaled Iyad Alsharif ◽

Aspen Glaspell ◽

Kyosung Choo

Keyword(s):

Energy Consumption ◽

Energy Conservation ◽

Data Center ◽

Temperature Increase ◽

Air Conditioning ◽

Research Data ◽

System Failure ◽

Conservation Measures ◽

Failure Scenario ◽

Energy Conservation Measures

Simulation and experimental studies were conducted to investigate energy consumption, develop ECMs (Energy Conservation Measures), and analyze temperature increase under a power failure scenario for a research data center at Youngstown State University. Two ECMs were developed to improve energy consumption by analyzing the thermal performance of the data center: (1) increase the return temperature in air conditioning vents; (2) provide cold aisle containment with the set point temperature increase. A transient analysis was conducted under a cooling system failure scenario to predict the temperature variation over time. The results suggest that it takes 600 s to increase the server inlet temperature by 16.1 °C for the baseline model. In addition, in the ECM #2, the maximum temperature at the server inlet did not reach 40 C under the air conditioning system failure scenario, which is the maximum operating temperature of the ASHRAE A3 envelop.

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